Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1 | #include "Python.h" |
| 2 | #include "cStringIO.h" |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3 | #include "structmember.h" |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 4 | |
Martin v. Löwis | 14f8b4c | 2002-06-13 20:33:02 +0000 | [diff] [blame] | 5 | PyDoc_STRVAR(cPickle_module_documentation, |
Tim Peters | 64c04d1 | 2003-02-01 06:27:59 +0000 | [diff] [blame] | 6 | "C implementation and optimization of the Python pickle module."); |
Martin v. Löwis | 14f8b4c | 2002-06-13 20:33:02 +0000 | [diff] [blame] | 7 | |
Guido van Rossum | 142eeb8 | 1997-08-13 03:14:41 +0000 | [diff] [blame] | 8 | #ifndef Py_eval_input |
| 9 | #include <graminit.h> |
| 10 | #define Py_eval_input eval_input |
Guido van Rossum | c6ef204 | 1997-08-21 02:30:45 +0000 | [diff] [blame] | 11 | #endif /* Py_eval_input */ |
Guido van Rossum | 142eeb8 | 1997-08-13 03:14:41 +0000 | [diff] [blame] | 12 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 13 | #define DEL_LIST_SLICE(list, from, to) (PyList_SetSlice(list, from, to, NULL)) |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 14 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 15 | #define WRITE_BUF_SIZE 256 |
| 16 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 17 | /* Bump this when new opcodes are added to the pickle protocol. */ |
Tim Peters | 8587b3c | 2003-02-13 15:44:41 +0000 | [diff] [blame] | 18 | #define HIGHEST_PROTOCOL 2 |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 19 | |
Tim Peters | 797ec24 | 2003-02-01 06:22:36 +0000 | [diff] [blame] | 20 | /* |
| 21 | * Pickle opcodes. These must be kept in synch with pickle.py. Extensive |
| 22 | * docs are in pickletools.py. |
| 23 | */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 24 | #define MARK '(' |
| 25 | #define STOP '.' |
| 26 | #define POP '0' |
| 27 | #define POP_MARK '1' |
| 28 | #define DUP '2' |
| 29 | #define FLOAT 'F' |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 30 | #define BINFLOAT 'G' |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 31 | #define INT 'I' |
| 32 | #define BININT 'J' |
| 33 | #define BININT1 'K' |
| 34 | #define LONG 'L' |
| 35 | #define BININT2 'M' |
| 36 | #define NONE 'N' |
| 37 | #define PERSID 'P' |
| 38 | #define BINPERSID 'Q' |
| 39 | #define REDUCE 'R' |
| 40 | #define STRING 'S' |
| 41 | #define BINSTRING 'T' |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 42 | #define SHORT_BINSTRING 'U' |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 43 | #define UNICODE 'V' |
| 44 | #define BINUNICODE 'X' |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 45 | #define APPEND 'a' |
| 46 | #define BUILD 'b' |
| 47 | #define GLOBAL 'c' |
| 48 | #define DICT 'd' |
| 49 | #define EMPTY_DICT '}' |
| 50 | #define APPENDS 'e' |
| 51 | #define GET 'g' |
| 52 | #define BINGET 'h' |
| 53 | #define INST 'i' |
| 54 | #define LONG_BINGET 'j' |
| 55 | #define LIST 'l' |
| 56 | #define EMPTY_LIST ']' |
| 57 | #define OBJ 'o' |
| 58 | #define PUT 'p' |
| 59 | #define BINPUT 'q' |
| 60 | #define LONG_BINPUT 'r' |
| 61 | #define SETITEM 's' |
| 62 | #define TUPLE 't' |
| 63 | #define EMPTY_TUPLE ')' |
| 64 | #define SETITEMS 'u' |
Tim Peters | 797ec24 | 2003-02-01 06:22:36 +0000 | [diff] [blame] | 65 | |
| 66 | /* Protocol 2. */ |
| 67 | #define PROTO '\x80' /* identify pickle protocol */ |
| 68 | #define NEWOBJ '\x81' /* build object by applying cls.__new__ to argtuple */ |
| 69 | #define EXT1 '\x82' /* push object from extension registry; 1-byte index */ |
| 70 | #define EXT2 '\x83' /* ditto, but 2-byte index */ |
| 71 | #define EXT4 '\x84' /* ditto, but 4-byte index */ |
| 72 | #define TUPLE1 '\x85' /* build 1-tuple from stack top */ |
| 73 | #define TUPLE2 '\x86' /* build 2-tuple from two topmost stack items */ |
| 74 | #define TUPLE3 '\x87' /* build 3-tuple from three topmost stack items */ |
| 75 | #define NEWTRUE '\x88' /* push True */ |
| 76 | #define NEWFALSE '\x89' /* push False */ |
| 77 | #define LONG1 '\x8a' /* push long from < 256 bytes */ |
| 78 | #define LONG4 '\x8b' /* push really big long */ |
| 79 | |
| 80 | /* There aren't opcodes -- they're ways to pickle bools before protocol 2, |
| 81 | * so that unpicklers written before bools were introduced unpickle them |
| 82 | * as ints, but unpicklers after can recognize that bools were intended. |
| 83 | * Note that protocol 2 added direct ways to pickle bools. |
| 84 | */ |
Jack Jansen | 3a96702 | 2002-06-26 20:40:42 +0000 | [diff] [blame] | 85 | #undef TRUE |
Guido van Rossum | e276339 | 2002-04-05 19:30:08 +0000 | [diff] [blame] | 86 | #define TRUE "I01\n" |
Jack Jansen | 3a96702 | 2002-06-26 20:40:42 +0000 | [diff] [blame] | 87 | #undef FALSE |
Guido van Rossum | e276339 | 2002-04-05 19:30:08 +0000 | [diff] [blame] | 88 | #define FALSE "I00\n" |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 89 | |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 90 | /* Keep in synch with pickle.Pickler._BATCHSIZE. This is how many elements |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 91 | * batch_list/dict() pumps out before doing APPENDS/SETITEMS. Nothing will |
| 92 | * break if this gets out of synch with pickle.py, but it's unclear that |
| 93 | * would help anything either. |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 94 | */ |
| 95 | #define BATCHSIZE 1000 |
| 96 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 97 | static char MARKv = MARK; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 98 | |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 99 | static PyObject *PickleError; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 100 | static PyObject *PicklingError; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 101 | static PyObject *UnpickleableError; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 102 | static PyObject *UnpicklingError; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 103 | static PyObject *BadPickleGet; |
| 104 | |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 105 | /* As the name says, an empty tuple. */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 106 | static PyObject *empty_tuple; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 107 | |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 108 | /* copy_reg.dispatch_table, {type_object: pickling_function} */ |
| 109 | static PyObject *dispatch_table; |
| 110 | |
| 111 | /* For EXT[124] opcodes. */ |
Guido van Rossum | d4b920c | 2003-02-04 01:54:49 +0000 | [diff] [blame] | 112 | /* copy_reg._extension_registry, {(module_name, function_name): code} */ |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 113 | static PyObject *extension_registry; |
Guido van Rossum | d4b920c | 2003-02-04 01:54:49 +0000 | [diff] [blame] | 114 | /* copy_reg._inverted_registry, {code: (module_name, function_name)} */ |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 115 | static PyObject *inverted_registry; |
Guido van Rossum | d4b920c | 2003-02-04 01:54:49 +0000 | [diff] [blame] | 116 | /* copy_reg._extension_cache, {code: object} */ |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 117 | static PyObject *extension_cache; |
| 118 | |
Tim Peters | 731098b | 2003-02-04 20:56:09 +0000 | [diff] [blame] | 119 | /* For looking up name pairs in copy_reg._extension_registry. */ |
| 120 | static PyObject *two_tuple; |
| 121 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 122 | /* object.__reduce__, the default reduce callable. */ |
| 123 | PyObject *object_reduce; |
| 124 | |
| 125 | /* copy_reg._better_reduce, the protocol 2 reduction function. */ |
| 126 | PyObject *better_reduce; |
| 127 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 128 | static PyObject *__class___str, *__getinitargs___str, *__dict___str, |
| 129 | *__getstate___str, *__setstate___str, *__name___str, *__reduce___str, |
Tim Peters | 1f1b2d2 | 2003-02-01 02:16:37 +0000 | [diff] [blame] | 130 | *write_str, *append_str, |
Guido van Rossum | 9716aaa | 1997-12-08 15:15:16 +0000 | [diff] [blame] | 131 | *read_str, *readline_str, *__main___str, *__basicnew___str, |
Tim Peters | 1f1b2d2 | 2003-02-01 02:16:37 +0000 | [diff] [blame] | 132 | *copy_reg_str, *dispatch_table_str; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 133 | |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 134 | /************************************************************************* |
| 135 | Internal Data type for pickle data. */ |
| 136 | |
| 137 | typedef struct { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 138 | PyObject_HEAD |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 139 | int length; /* number of initial slots in data currently used */ |
| 140 | int size; /* number of slots in data allocated */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 141 | PyObject **data; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 142 | } Pdata; |
| 143 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 144 | static void |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 145 | Pdata_dealloc(Pdata *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 146 | { |
| 147 | int i; |
| 148 | PyObject **p; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 149 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 150 | for (i = self->length, p = self->data; --i >= 0; p++) { |
| 151 | Py_DECREF(*p); |
| 152 | } |
| 153 | if (self->data) |
| 154 | free(self->data); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 155 | PyObject_Del(self); |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | static PyTypeObject PdataType = { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 159 | PyObject_HEAD_INIT(NULL) 0, "cPickle.Pdata", sizeof(Pdata), 0, |
| 160 | (destructor)Pdata_dealloc, |
| 161 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0L,0L,0L,0L, "" |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 162 | }; |
| 163 | |
| 164 | #define Pdata_Check(O) ((O)->ob_type == &PdataType) |
| 165 | |
| 166 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 167 | Pdata_New(void) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 168 | { |
| 169 | Pdata *self; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 170 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 171 | if (!(self = PyObject_New(Pdata, &PdataType))) |
| 172 | return NULL; |
| 173 | self->size = 8; |
| 174 | self->length = 0; |
| 175 | self->data = malloc(self->size * sizeof(PyObject*)); |
| 176 | if (self->data) |
| 177 | return (PyObject*)self; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 178 | Py_DECREF(self); |
| 179 | return PyErr_NoMemory(); |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 180 | } |
| 181 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 182 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 183 | stackUnderflow(void) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 184 | { |
| 185 | PyErr_SetString(UnpicklingError, "unpickling stack underflow"); |
| 186 | return -1; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 187 | } |
| 188 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 189 | /* Retain only the initial clearto items. If clearto >= the current |
| 190 | * number of items, this is a (non-erroneous) NOP. |
| 191 | */ |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 192 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 193 | Pdata_clear(Pdata *self, int clearto) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 194 | { |
| 195 | int i; |
| 196 | PyObject **p; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 197 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 198 | if (clearto < 0) return stackUnderflow(); |
| 199 | if (clearto >= self->length) return 0; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 200 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 201 | for (i = self->length, p = self->data + clearto; |
| 202 | --i >= clearto; |
| 203 | p++) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 204 | Py_DECREF(*p); |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 205 | } |
| 206 | self->length = clearto; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 207 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 208 | return 0; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 209 | } |
| 210 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 211 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 212 | Pdata_grow(Pdata *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 213 | { |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 214 | int bigger; |
| 215 | size_t nbytes; |
| 216 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 217 | bigger = self->size << 1; |
Tim Peters | e0a3907 | 2003-02-03 15:45:56 +0000 | [diff] [blame] | 218 | if (bigger <= 0) /* was 0, or new value overflows */ |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 219 | goto nomemory; |
| 220 | if ((int)(size_t)bigger != bigger) |
| 221 | goto nomemory; |
| 222 | nbytes = (size_t)bigger * sizeof(PyObject *); |
| 223 | if (nbytes / sizeof(PyObject *) != (size_t)bigger) |
| 224 | goto nomemory; |
| 225 | self->data = realloc(self->data, nbytes); |
| 226 | if (self->data == NULL) |
| 227 | goto nomemory; |
| 228 | self->size = bigger; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 229 | return 0; |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 230 | |
| 231 | nomemory: |
| 232 | self->size = 0; |
| 233 | PyErr_NoMemory(); |
| 234 | return -1; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 235 | } |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 236 | |
Tim Peters | e0a3907 | 2003-02-03 15:45:56 +0000 | [diff] [blame] | 237 | /* D is a Pdata*. Pop the topmost element and store it into V, which |
| 238 | * must be an lvalue holding PyObject*. On stack underflow, UnpicklingError |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 239 | * is raised and V is set to NULL. D and V may be evaluated several times. |
| 240 | */ |
| 241 | #define PDATA_POP(D, V) { \ |
Tim Peters | e0a3907 | 2003-02-03 15:45:56 +0000 | [diff] [blame] | 242 | if ((D)->length) \ |
| 243 | (V) = (D)->data[--((D)->length)]; \ |
| 244 | else { \ |
| 245 | PyErr_SetString(UnpicklingError, "bad pickle data"); \ |
| 246 | (V) = NULL; \ |
| 247 | } \ |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 248 | } |
| 249 | |
Tim Peters | e0a3907 | 2003-02-03 15:45:56 +0000 | [diff] [blame] | 250 | /* PDATA_PUSH and PDATA_APPEND both push rvalue PyObject* O on to Pdata* |
| 251 | * D. If the Pdata stack can't be grown to hold the new value, both |
| 252 | * raise MemoryError and execute "return ER". The difference is in ownership |
| 253 | * of O after: _PUSH transfers ownership of O from the caller to the stack |
| 254 | * (no incref of O is done, and in case of error O is decrefed), while |
| 255 | * _APPEND pushes a new reference. |
| 256 | */ |
| 257 | |
| 258 | /* Push O on stack D, giving ownership of O to the stack. */ |
| 259 | #define PDATA_PUSH(D, O, ER) { \ |
| 260 | if (((Pdata*)(D))->length == ((Pdata*)(D))->size && \ |
| 261 | Pdata_grow((Pdata*)(D)) < 0) { \ |
| 262 | Py_DECREF(O); \ |
| 263 | return ER; \ |
| 264 | } \ |
| 265 | ((Pdata*)(D))->data[((Pdata*)(D))->length++] = (O); \ |
| 266 | } |
| 267 | |
| 268 | /* Push O on stack D, pushing a new reference. */ |
| 269 | #define PDATA_APPEND(D, O, ER) { \ |
| 270 | if (((Pdata*)(D))->length == ((Pdata*)(D))->size && \ |
| 271 | Pdata_grow((Pdata*)(D)) < 0) \ |
| 272 | return ER; \ |
| 273 | Py_INCREF(O); \ |
| 274 | ((Pdata*)(D))->data[((Pdata*)(D))->length++] = (O); \ |
| 275 | } |
| 276 | |
| 277 | |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 278 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 279 | Pdata_popTuple(Pdata *self, int start) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 280 | { |
| 281 | PyObject *r; |
| 282 | int i, j, l; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 283 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 284 | l = self->length-start; |
| 285 | r = PyTuple_New(l); |
| 286 | if (r == NULL) |
| 287 | return NULL; |
| 288 | for (i = start, j = 0 ; j < l; i++, j++) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 289 | PyTuple_SET_ITEM(r, j, self->data[i]); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 290 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 291 | self->length = start; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 292 | return r; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 293 | } |
| 294 | |
| 295 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 296 | Pdata_popList(Pdata *self, int start) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 297 | { |
| 298 | PyObject *r; |
| 299 | int i, j, l; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 300 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 301 | l=self->length-start; |
| 302 | if (!( r=PyList_New(l))) return NULL; |
| 303 | for (i=start, j=0 ; j < l; i++, j++) |
| 304 | PyList_SET_ITEM(r, j, self->data[i]); |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 305 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 306 | self->length=start; |
| 307 | return r; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 308 | } |
| 309 | |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 310 | /*************************************************************************/ |
| 311 | |
| 312 | #define ARG_TUP(self, o) { \ |
| 313 | if (self->arg || (self->arg=PyTuple_New(1))) { \ |
| 314 | Py_XDECREF(PyTuple_GET_ITEM(self->arg,0)); \ |
| 315 | PyTuple_SET_ITEM(self->arg,0,o); \ |
| 316 | } \ |
| 317 | else { \ |
| 318 | Py_DECREF(o); \ |
| 319 | } \ |
| 320 | } |
| 321 | |
| 322 | #define FREE_ARG_TUP(self) { \ |
| 323 | if (self->arg->ob_refcnt > 1) { \ |
| 324 | Py_DECREF(self->arg); \ |
| 325 | self->arg=NULL; \ |
| 326 | } \ |
| 327 | } |
| 328 | |
Thomas Wouters | 3b6448f | 2000-07-22 23:56:07 +0000 | [diff] [blame] | 329 | typedef struct Picklerobject { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 330 | PyObject_HEAD |
| 331 | FILE *fp; |
| 332 | PyObject *write; |
| 333 | PyObject *file; |
| 334 | PyObject *memo; |
| 335 | PyObject *arg; |
| 336 | PyObject *pers_func; |
| 337 | PyObject *inst_pers_func; |
Tim Peters | 797ec24 | 2003-02-01 06:22:36 +0000 | [diff] [blame] | 338 | |
| 339 | /* pickle protocol number, >= 0 */ |
| 340 | int proto; |
| 341 | |
| 342 | /* bool, true if proto > 0 */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 343 | int bin; |
Tim Peters | 797ec24 | 2003-02-01 06:22:36 +0000 | [diff] [blame] | 344 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 345 | int fast; /* Fast mode doesn't save in memo, don't use if circ ref */ |
Martin v. Löwis | 5a39530 | 2002-08-04 08:20:23 +0000 | [diff] [blame] | 346 | int nesting; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 347 | int (*write_func)(struct Picklerobject *, char *, int); |
| 348 | char *write_buf; |
| 349 | int buf_size; |
| 350 | PyObject *dispatch_table; |
| 351 | int fast_container; /* count nested container dumps */ |
| 352 | PyObject *fast_memo; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 353 | } Picklerobject; |
| 354 | |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 355 | #ifndef PY_CPICKLE_FAST_LIMIT |
| 356 | #define PY_CPICKLE_FAST_LIMIT 50 |
| 357 | #endif |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 358 | |
Jeremy Hylton | 938ace6 | 2002-07-17 16:30:39 +0000 | [diff] [blame] | 359 | static PyTypeObject Picklertype; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 360 | |
Thomas Wouters | 3b6448f | 2000-07-22 23:56:07 +0000 | [diff] [blame] | 361 | typedef struct Unpicklerobject { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 362 | PyObject_HEAD |
| 363 | FILE *fp; |
| 364 | PyObject *file; |
| 365 | PyObject *readline; |
| 366 | PyObject *read; |
| 367 | PyObject *memo; |
| 368 | PyObject *arg; |
| 369 | Pdata *stack; |
| 370 | PyObject *mark; |
| 371 | PyObject *pers_func; |
| 372 | PyObject *last_string; |
| 373 | int *marks; |
| 374 | int num_marks; |
| 375 | int marks_size; |
| 376 | int (*read_func)(struct Unpicklerobject *, char **, int); |
| 377 | int (*readline_func)(struct Unpicklerobject *, char **); |
| 378 | int buf_size; |
| 379 | char *buf; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 380 | PyObject *find_class; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 381 | } Unpicklerobject; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 382 | |
Jeremy Hylton | 938ace6 | 2002-07-17 16:30:39 +0000 | [diff] [blame] | 383 | static PyTypeObject Unpicklertype; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 384 | |
Thomas Wouters | 4789b3a | 2000-07-24 11:36:47 +0000 | [diff] [blame] | 385 | /* Forward decls that need the above structs */ |
| 386 | static int save(Picklerobject *, PyObject *, int); |
| 387 | static int put2(Picklerobject *, PyObject *); |
| 388 | |
Guido van Rossum | d385d59 | 1997-04-09 17:47:47 +0000 | [diff] [blame] | 389 | static |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 390 | PyObject * |
Thomas Wouters | 3b6448f | 2000-07-22 23:56:07 +0000 | [diff] [blame] | 391 | cPickle_ErrFormat(PyObject *ErrType, char *stringformat, char *format, ...) |
| 392 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 393 | va_list va; |
| 394 | PyObject *args=0, *retval=0; |
| 395 | va_start(va, format); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 396 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 397 | if (format) args = Py_VaBuildValue(format, va); |
| 398 | va_end(va); |
| 399 | if (format && ! args) return NULL; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 400 | if (stringformat && !(retval=PyString_FromString(stringformat))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 401 | return NULL; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 402 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 403 | if (retval) { |
| 404 | if (args) { |
| 405 | PyObject *v; |
| 406 | v=PyString_Format(retval, args); |
| 407 | Py_DECREF(retval); |
| 408 | Py_DECREF(args); |
| 409 | if (! v) return NULL; |
| 410 | retval=v; |
| 411 | } |
| 412 | } |
| 413 | else |
| 414 | if (args) retval=args; |
| 415 | else { |
| 416 | PyErr_SetObject(ErrType,Py_None); |
| 417 | return NULL; |
| 418 | } |
| 419 | PyErr_SetObject(ErrType,retval); |
| 420 | Py_DECREF(retval); |
| 421 | return NULL; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 422 | } |
| 423 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 424 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 425 | write_file(Picklerobject *self, char *s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 426 | { |
| 427 | size_t nbyteswritten; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 428 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 429 | if (s == NULL) { |
| 430 | return 0; |
| 431 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 432 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 433 | Py_BEGIN_ALLOW_THREADS |
Jeremy Hylton | 7fa4bfa | 2002-07-18 20:58:57 +0000 | [diff] [blame] | 434 | nbyteswritten = fwrite(s, sizeof(char), n, self->fp); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 435 | Py_END_ALLOW_THREADS |
Jeremy Hylton | 7fa4bfa | 2002-07-18 20:58:57 +0000 | [diff] [blame] | 436 | if (nbyteswritten != (size_t)n) { |
| 437 | PyErr_SetFromErrno(PyExc_IOError); |
| 438 | return -1; |
| 439 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 440 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 441 | return n; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 442 | } |
| 443 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 444 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 445 | write_cStringIO(Picklerobject *self, char *s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 446 | { |
| 447 | if (s == NULL) { |
| 448 | return 0; |
| 449 | } |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 450 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 451 | if (PycStringIO->cwrite((PyObject *)self->file, s, n) != n) { |
| 452 | return -1; |
| 453 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 454 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 455 | return n; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 456 | } |
| 457 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 458 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 459 | write_none(Picklerobject *self, char *s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 460 | { |
| 461 | if (s == NULL) return 0; |
| 462 | return n; |
Guido van Rossum | 142eeb8 | 1997-08-13 03:14:41 +0000 | [diff] [blame] | 463 | } |
| 464 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 465 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 466 | write_other(Picklerobject *self, char *s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 467 | { |
| 468 | PyObject *py_str = 0, *junk = 0; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 469 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 470 | if (s == NULL) { |
| 471 | if (!( self->buf_size )) return 0; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 472 | py_str = PyString_FromStringAndSize(self->write_buf, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 473 | self->buf_size); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 474 | if (!py_str) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 475 | return -1; |
| 476 | } |
| 477 | else { |
| 478 | if (self->buf_size && (n + self->buf_size) > WRITE_BUF_SIZE) { |
| 479 | if (write_other(self, NULL, 0) < 0) |
| 480 | return -1; |
| 481 | } |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 482 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 483 | if (n > WRITE_BUF_SIZE) { |
| 484 | if (!( py_str = |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 485 | PyString_FromStringAndSize(s, n))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 486 | return -1; |
| 487 | } |
| 488 | else { |
| 489 | memcpy(self->write_buf + self->buf_size, s, n); |
| 490 | self->buf_size += n; |
| 491 | return n; |
| 492 | } |
| 493 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 494 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 495 | if (self->write) { |
| 496 | /* object with write method */ |
| 497 | ARG_TUP(self, py_str); |
| 498 | if (self->arg) { |
| 499 | junk = PyObject_Call(self->write, self->arg, NULL); |
| 500 | FREE_ARG_TUP(self); |
| 501 | } |
| 502 | if (junk) Py_DECREF(junk); |
| 503 | else return -1; |
| 504 | } |
| 505 | else |
| 506 | PDATA_PUSH(self->file, py_str, -1); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 507 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 508 | self->buf_size = 0; |
| 509 | return n; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 510 | } |
| 511 | |
| 512 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 513 | static int |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 514 | read_file(Unpicklerobject *self, char **s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 515 | { |
| 516 | size_t nbytesread; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 517 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 518 | if (self->buf_size == 0) { |
| 519 | int size; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 520 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 521 | size = ((n < 32) ? 32 : n); |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 522 | if (!( self->buf = (char *)malloc(size))) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 523 | PyErr_NoMemory(); |
| 524 | return -1; |
| 525 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 526 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 527 | self->buf_size = size; |
| 528 | } |
| 529 | else if (n > self->buf_size) { |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 530 | self->buf = (char *)realloc(self->buf, n); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 531 | if (!self->buf) { |
| 532 | PyErr_NoMemory(); |
| 533 | return -1; |
| 534 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 535 | self->buf_size = n; |
| 536 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 537 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 538 | Py_BEGIN_ALLOW_THREADS |
| 539 | nbytesread = fread(self->buf, sizeof(char), n, self->fp); |
| 540 | Py_END_ALLOW_THREADS |
| 541 | if (nbytesread != (size_t)n) { |
| 542 | if (feof(self->fp)) { |
| 543 | PyErr_SetNone(PyExc_EOFError); |
| 544 | return -1; |
| 545 | } |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 546 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 547 | PyErr_SetFromErrno(PyExc_IOError); |
| 548 | return -1; |
| 549 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 550 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 551 | *s = self->buf; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 552 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 553 | return n; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 554 | } |
| 555 | |
| 556 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 557 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 558 | readline_file(Unpicklerobject *self, char **s) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 559 | { |
| 560 | int i; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 561 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 562 | if (self->buf_size == 0) { |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 563 | if (!( self->buf = (char *)malloc(40))) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 564 | PyErr_NoMemory(); |
| 565 | return -1; |
| 566 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 567 | self->buf_size = 40; |
| 568 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 569 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 570 | i = 0; |
| 571 | while (1) { |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 572 | int bigger; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 573 | for (; i < (self->buf_size - 1); i++) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 574 | if (feof(self->fp) || |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 575 | (self->buf[i] = getc(self->fp)) == '\n') { |
| 576 | self->buf[i + 1] = '\0'; |
| 577 | *s = self->buf; |
| 578 | return i + 1; |
| 579 | } |
| 580 | } |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 581 | bigger = self->buf_size << 1; |
| 582 | if (bigger <= 0) { /* overflow */ |
| 583 | PyErr_NoMemory(); |
| 584 | return -1; |
| 585 | } |
| 586 | self->buf = (char *)realloc(self->buf, bigger); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 587 | if (!self->buf) { |
| 588 | PyErr_NoMemory(); |
| 589 | return -1; |
| 590 | } |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 591 | self->buf_size = bigger; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 592 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 593 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 594 | |
| 595 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 596 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 597 | read_cStringIO(Unpicklerobject *self, char **s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 598 | { |
| 599 | char *ptr; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 600 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 601 | if (PycStringIO->cread((PyObject *)self->file, &ptr, n) != n) { |
| 602 | PyErr_SetNone(PyExc_EOFError); |
| 603 | return -1; |
| 604 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 605 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 606 | *s = ptr; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 607 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 608 | return n; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 612 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 613 | readline_cStringIO(Unpicklerobject *self, char **s) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 614 | { |
| 615 | int n; |
| 616 | char *ptr; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 617 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 618 | if ((n = PycStringIO->creadline((PyObject *)self->file, &ptr)) < 0) { |
| 619 | return -1; |
| 620 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 621 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 622 | *s = ptr; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 623 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 624 | return n; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 625 | } |
| 626 | |
| 627 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 628 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 629 | read_other(Unpicklerobject *self, char **s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 630 | { |
| 631 | PyObject *bytes, *str=0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 632 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 633 | if (!( bytes = PyInt_FromLong(n))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 634 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 635 | ARG_TUP(self, bytes); |
| 636 | if (self->arg) { |
| 637 | str = PyObject_Call(self->read, self->arg, NULL); |
| 638 | FREE_ARG_TUP(self); |
| 639 | } |
| 640 | if (! str) return -1; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 641 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 642 | Py_XDECREF(self->last_string); |
| 643 | self->last_string = str; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 644 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 645 | if (! (*s = PyString_AsString(str))) return -1; |
| 646 | return n; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 647 | } |
| 648 | |
| 649 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 650 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 651 | readline_other(Unpicklerobject *self, char **s) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 652 | { |
| 653 | PyObject *str; |
| 654 | int str_size; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 655 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 656 | if (!( str = PyObject_CallObject(self->readline, empty_tuple))) { |
| 657 | return -1; |
| 658 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 659 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 660 | if ((str_size = PyString_Size(str)) < 0) |
| 661 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 662 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 663 | Py_XDECREF(self->last_string); |
| 664 | self->last_string = str; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 665 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 666 | if (! (*s = PyString_AsString(str))) |
| 667 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 668 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 669 | return str_size; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 670 | } |
| 671 | |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 672 | /* Copy the first n bytes from s into newly malloc'ed memory, plus a |
| 673 | * trailing 0 byte. Return a pointer to that, or NULL if out of memory. |
| 674 | * The caller is responsible for free()'ing the return value. |
| 675 | */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 676 | static char * |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 677 | pystrndup(char *s, int n) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 678 | { |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 679 | char *r = (char *)malloc(n+1); |
| 680 | if (r == NULL) |
| 681 | return (char*)PyErr_NoMemory(); |
| 682 | memcpy(r, s, n); |
| 683 | r[n] = 0; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 684 | return r; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 685 | } |
| 686 | |
| 687 | |
| 688 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 689 | get(Picklerobject *self, PyObject *id) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 690 | { |
| 691 | PyObject *value, *mv; |
| 692 | long c_value; |
| 693 | char s[30]; |
| 694 | size_t len; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 695 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 696 | if (!( mv = PyDict_GetItem(self->memo, id))) { |
| 697 | PyErr_SetObject(PyExc_KeyError, id); |
| 698 | return -1; |
| 699 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 700 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 701 | if (!( value = PyTuple_GetItem(mv, 0))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 702 | return -1; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 703 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 704 | if (!( PyInt_Check(value))) { |
| 705 | PyErr_SetString(PicklingError, "no int where int expected in memo"); |
| 706 | return -1; |
| 707 | } |
| 708 | c_value = PyInt_AS_LONG((PyIntObject*)value); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 709 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 710 | if (!self->bin) { |
| 711 | s[0] = GET; |
| 712 | PyOS_snprintf(s + 1, sizeof(s) - 1, "%ld\n", c_value); |
| 713 | len = strlen(s); |
| 714 | } |
| 715 | else if (Pdata_Check(self->file)) { |
| 716 | if (write_other(self, NULL, 0) < 0) return -1; |
| 717 | PDATA_APPEND(self->file, mv, -1); |
| 718 | return 0; |
| 719 | } |
| 720 | else { |
| 721 | if (c_value < 256) { |
| 722 | s[0] = BINGET; |
| 723 | s[1] = (int)(c_value & 0xff); |
| 724 | len = 2; |
| 725 | } |
| 726 | else { |
| 727 | s[0] = LONG_BINGET; |
| 728 | s[1] = (int)(c_value & 0xff); |
| 729 | s[2] = (int)((c_value >> 8) & 0xff); |
| 730 | s[3] = (int)((c_value >> 16) & 0xff); |
| 731 | s[4] = (int)((c_value >> 24) & 0xff); |
| 732 | len = 5; |
| 733 | } |
| 734 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 735 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 736 | if (self->write_func(self, s, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 737 | return -1; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 738 | |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 739 | return 0; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 740 | } |
Jeremy Hylton | ce616e4 | 1998-08-13 23:13:52 +0000 | [diff] [blame] | 741 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 742 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 743 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 744 | put(Picklerobject *self, PyObject *ob) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 745 | { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 746 | if (ob->ob_refcnt < 2 || self->fast) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 747 | return 0; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 748 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 749 | return put2(self, ob); |
| 750 | } |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 751 | |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 752 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 753 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 754 | put2(Picklerobject *self, PyObject *ob) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 755 | { |
| 756 | char c_str[30]; |
| 757 | int p; |
| 758 | size_t len; |
| 759 | int res = -1; |
| 760 | PyObject *py_ob_id = 0, *memo_len = 0, *t = 0; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 761 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 762 | if (self->fast) |
| 763 | return 0; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 764 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 765 | if ((p = PyDict_Size(self->memo)) < 0) |
| 766 | goto finally; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 767 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 768 | /* Make sure memo keys are positive! */ |
Tim Peters | 70b02d7 | 2003-02-02 17:26:40 +0000 | [diff] [blame] | 769 | /* XXX Why? |
| 770 | * XXX And does "positive" really mean non-negative? |
| 771 | * XXX pickle.py starts with PUT index 0, not 1. This makes for |
| 772 | * XXX gratuitous differences between the pickling modules. |
| 773 | */ |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 774 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 775 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 776 | if (!( py_ob_id = PyLong_FromVoidPtr(ob))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 777 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 778 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 779 | if (!( memo_len = PyInt_FromLong(p))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 780 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 781 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 782 | if (!( t = PyTuple_New(2))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 783 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 784 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 785 | PyTuple_SET_ITEM(t, 0, memo_len); |
| 786 | Py_INCREF(memo_len); |
| 787 | PyTuple_SET_ITEM(t, 1, ob); |
| 788 | Py_INCREF(ob); |
| 789 | |
| 790 | if (PyDict_SetItem(self->memo, py_ob_id, t) < 0) |
| 791 | goto finally; |
| 792 | |
| 793 | if (!self->bin) { |
| 794 | c_str[0] = PUT; |
| 795 | PyOS_snprintf(c_str + 1, sizeof(c_str) - 1, "%d\n", p); |
| 796 | len = strlen(c_str); |
| 797 | } |
| 798 | else if (Pdata_Check(self->file)) { |
| 799 | if (write_other(self, NULL, 0) < 0) return -1; |
| 800 | PDATA_APPEND(self->file, memo_len, -1); |
| 801 | res=0; /* Job well done ;) */ |
| 802 | goto finally; |
| 803 | } |
| 804 | else { |
| 805 | if (p >= 256) { |
| 806 | c_str[0] = LONG_BINPUT; |
| 807 | c_str[1] = (int)(p & 0xff); |
| 808 | c_str[2] = (int)((p >> 8) & 0xff); |
| 809 | c_str[3] = (int)((p >> 16) & 0xff); |
| 810 | c_str[4] = (int)((p >> 24) & 0xff); |
| 811 | len = 5; |
| 812 | } |
| 813 | else { |
| 814 | c_str[0] = BINPUT; |
| 815 | c_str[1] = p; |
| 816 | len = 2; |
| 817 | } |
| 818 | } |
| 819 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 820 | if (self->write_func(self, c_str, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 821 | goto finally; |
| 822 | |
| 823 | res = 0; |
| 824 | |
| 825 | finally: |
| 826 | Py_XDECREF(py_ob_id); |
| 827 | Py_XDECREF(memo_len); |
| 828 | Py_XDECREF(t); |
| 829 | |
| 830 | return res; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 831 | } |
| 832 | |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 833 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 834 | whichmodule(PyObject *global, PyObject *global_name) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 835 | { |
| 836 | int i, j; |
| 837 | PyObject *module = 0, *modules_dict = 0, |
| 838 | *global_name_attr = 0, *name = 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 839 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 840 | module = PyObject_GetAttrString(global, "__module__"); |
| 841 | if (module) return module; |
| 842 | PyErr_Clear(); |
Guido van Rossum | 4518823 | 1997-09-28 05:38:51 +0000 | [diff] [blame] | 843 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 844 | if (!( modules_dict = PySys_GetObject("modules"))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 845 | return NULL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 846 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 847 | i = 0; |
| 848 | while ((j = PyDict_Next(modules_dict, &i, &name, &module))) { |
Guido van Rossum | 142eeb8 | 1997-08-13 03:14:41 +0000 | [diff] [blame] | 849 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 850 | if (PyObject_Compare(name, __main___str)==0) continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 851 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 852 | global_name_attr = PyObject_GetAttr(module, global_name); |
| 853 | if (!global_name_attr) { |
| 854 | PyErr_Clear(); |
| 855 | continue; |
| 856 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 857 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 858 | if (global_name_attr != global) { |
| 859 | Py_DECREF(global_name_attr); |
| 860 | continue; |
| 861 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 862 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 863 | Py_DECREF(global_name_attr); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 864 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 865 | break; |
| 866 | } |
Guido van Rossum | 142eeb8 | 1997-08-13 03:14:41 +0000 | [diff] [blame] | 867 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 868 | /* The following implements the rule in pickle.py added in 1.5 |
| 869 | that used __main__ if no module is found. I don't actually |
| 870 | like this rule. jlf |
| 871 | */ |
| 872 | if (!j) { |
| 873 | j=1; |
| 874 | name=__main___str; |
| 875 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 876 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 877 | Py_INCREF(name); |
| 878 | return name; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 879 | } |
| 880 | |
| 881 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 882 | static int |
Jeremy Hylton | 499ab6a | 2001-10-15 21:37:58 +0000 | [diff] [blame] | 883 | fast_save_enter(Picklerobject *self, PyObject *obj) |
| 884 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 885 | /* if fast_container < 0, we're doing an error exit. */ |
| 886 | if (++self->fast_container >= PY_CPICKLE_FAST_LIMIT) { |
| 887 | PyObject *key = NULL; |
| 888 | if (self->fast_memo == NULL) { |
| 889 | self->fast_memo = PyDict_New(); |
| 890 | if (self->fast_memo == NULL) { |
| 891 | self->fast_container = -1; |
| 892 | return 0; |
| 893 | } |
| 894 | } |
| 895 | key = PyLong_FromVoidPtr(obj); |
| 896 | if (key == NULL) |
| 897 | return 0; |
| 898 | if (PyDict_GetItem(self->fast_memo, key)) { |
Tim Peters | 4e52ca8 | 2002-12-07 02:43:28 +0000 | [diff] [blame] | 899 | Py_DECREF(key); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 900 | PyErr_Format(PyExc_ValueError, |
Tim Peters | 92c8bb3 | 2003-02-13 23:00:26 +0000 | [diff] [blame] | 901 | "fast mode: can't pickle cyclic objects " |
| 902 | "including object type %s at %p", |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 903 | obj->ob_type->tp_name, obj); |
| 904 | self->fast_container = -1; |
| 905 | return 0; |
| 906 | } |
| 907 | if (PyDict_SetItem(self->fast_memo, key, Py_None) < 0) { |
Tim Peters | 4e52ca8 | 2002-12-07 02:43:28 +0000 | [diff] [blame] | 908 | Py_DECREF(key); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 909 | self->fast_container = -1; |
| 910 | return 0; |
| 911 | } |
Tim Peters | 4e52ca8 | 2002-12-07 02:43:28 +0000 | [diff] [blame] | 912 | Py_DECREF(key); |
Jeremy Hylton | 499ab6a | 2001-10-15 21:37:58 +0000 | [diff] [blame] | 913 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 914 | return 1; |
Jeremy Hylton | 499ab6a | 2001-10-15 21:37:58 +0000 | [diff] [blame] | 915 | } |
| 916 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 917 | int |
Jeremy Hylton | 499ab6a | 2001-10-15 21:37:58 +0000 | [diff] [blame] | 918 | fast_save_leave(Picklerobject *self, PyObject *obj) |
| 919 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 920 | if (self->fast_container-- >= PY_CPICKLE_FAST_LIMIT) { |
| 921 | PyObject *key = PyLong_FromVoidPtr(obj); |
| 922 | if (key == NULL) |
| 923 | return 0; |
| 924 | if (PyDict_DelItem(self->fast_memo, key) < 0) { |
Tim Peters | 4e52ca8 | 2002-12-07 02:43:28 +0000 | [diff] [blame] | 925 | Py_DECREF(key); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 926 | return 0; |
| 927 | } |
Tim Peters | 4e52ca8 | 2002-12-07 02:43:28 +0000 | [diff] [blame] | 928 | Py_DECREF(key); |
Jeremy Hylton | 499ab6a | 2001-10-15 21:37:58 +0000 | [diff] [blame] | 929 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 930 | return 1; |
Jeremy Hylton | 499ab6a | 2001-10-15 21:37:58 +0000 | [diff] [blame] | 931 | } |
| 932 | |
| 933 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 934 | save_none(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 935 | { |
| 936 | static char none = NONE; |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 937 | if (self->write_func(self, &none, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 938 | return -1; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 939 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 940 | return 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 941 | } |
| 942 | |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 943 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 944 | save_bool(Picklerobject *self, PyObject *args) |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 945 | { |
Guido van Rossum | e276339 | 2002-04-05 19:30:08 +0000 | [diff] [blame] | 946 | static char *buf[2] = {FALSE, TRUE}; |
| 947 | static char len[2] = {sizeof(FALSE)-1, sizeof(TRUE)-1}; |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 948 | long l = PyInt_AS_LONG((PyIntObject *)args); |
| 949 | |
Tim Peters | 3c67d79 | 2003-02-02 17:59:11 +0000 | [diff] [blame] | 950 | if (self->proto >= 2) { |
| 951 | char opcode = l ? NEWTRUE : NEWFALSE; |
| 952 | if (self->write_func(self, &opcode, 1) < 0) |
| 953 | return -1; |
| 954 | } |
| 955 | else if (self->write_func(self, buf[l], len[l]) < 0) |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 956 | return -1; |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 957 | return 0; |
| 958 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 959 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 960 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 961 | save_int(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 962 | { |
| 963 | char c_str[32]; |
| 964 | long l = PyInt_AS_LONG((PyIntObject *)args); |
| 965 | int len = 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 966 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 967 | if (!self->bin |
Guido van Rossum | de8d6d7 | 1997-05-13 18:00:44 +0000 | [diff] [blame] | 968 | #if SIZEOF_LONG > 4 |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 969 | || l > 0x7fffffffL |
| 970 | || l < -0x80000000L |
Guido van Rossum | de8d6d7 | 1997-05-13 18:00:44 +0000 | [diff] [blame] | 971 | #endif |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 972 | ) { |
| 973 | /* Text-mode pickle, or long too big to fit in the 4-byte |
| 974 | * signed BININT format: store as a string. |
| 975 | */ |
| 976 | c_str[0] = INT; |
| 977 | PyOS_snprintf(c_str + 1, sizeof(c_str) - 1, "%ld\n", l); |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 978 | if (self->write_func(self, c_str, strlen(c_str)) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 979 | return -1; |
| 980 | } |
| 981 | else { |
| 982 | /* Binary pickle and l fits in a signed 4-byte int. */ |
| 983 | c_str[1] = (int)( l & 0xff); |
| 984 | c_str[2] = (int)((l >> 8) & 0xff); |
| 985 | c_str[3] = (int)((l >> 16) & 0xff); |
| 986 | c_str[4] = (int)((l >> 24) & 0xff); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 987 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 988 | if ((c_str[4] == 0) && (c_str[3] == 0)) { |
| 989 | if (c_str[2] == 0) { |
| 990 | c_str[0] = BININT1; |
| 991 | len = 2; |
| 992 | } |
| 993 | else { |
| 994 | c_str[0] = BININT2; |
| 995 | len = 3; |
| 996 | } |
| 997 | } |
| 998 | else { |
| 999 | c_str[0] = BININT; |
| 1000 | len = 5; |
| 1001 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1002 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1003 | if (self->write_func(self, c_str, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1004 | return -1; |
| 1005 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1006 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1007 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1008 | } |
| 1009 | |
| 1010 | |
| 1011 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1012 | save_long(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1013 | { |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 1014 | int size; |
| 1015 | int res = -1; |
| 1016 | PyObject *repr = NULL; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1017 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1018 | static char l = LONG; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1019 | |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 1020 | if (self->proto >= 2) { |
| 1021 | /* Linear-time pickling. */ |
| 1022 | size_t nbits; |
| 1023 | size_t nbytes; |
| 1024 | unsigned char *pdata; |
| 1025 | char c_str[5]; |
| 1026 | int i; |
| 1027 | int sign = _PyLong_Sign(args); |
| 1028 | |
| 1029 | if (sign == 0) { |
| 1030 | /* It's 0 -- an empty bytestring. */ |
| 1031 | c_str[0] = LONG1; |
| 1032 | c_str[1] = 0; |
| 1033 | i = self->write_func(self, c_str, 2); |
| 1034 | if (i < 0) goto finally; |
| 1035 | res = 0; |
| 1036 | goto finally; |
| 1037 | } |
| 1038 | nbits = _PyLong_NumBits(args); |
| 1039 | if (nbits == (size_t)-1 && PyErr_Occurred()) |
| 1040 | goto finally; |
| 1041 | /* How many bytes do we need? There are nbits >> 3 full |
| 1042 | * bytes of data, and nbits & 7 leftover bits. If there |
| 1043 | * are any leftover bits, then we clearly need another |
| 1044 | * byte. Wnat's not so obvious is that we *probably* |
| 1045 | * need another byte even if there aren't any leftovers: |
| 1046 | * the most-significant bit of the most-significant byte |
| 1047 | * acts like a sign bit, and it's usually got a sense |
| 1048 | * opposite of the one we need. The exception is longs |
| 1049 | * of the form -(2**(8*j-1)) for j > 0. Such a long is |
| 1050 | * its own 256's-complement, so has the right sign bit |
| 1051 | * even without the extra byte. That's a pain to check |
| 1052 | * for in advance, though, so we always grab an extra |
| 1053 | * byte at the start, and cut it back later if possible. |
| 1054 | */ |
| 1055 | nbytes = (nbits >> 3) + 1; |
| 1056 | if ((int)nbytes < 0 || (size_t)(int)nbytes != nbytes) { |
| 1057 | PyErr_SetString(PyExc_OverflowError, "long too large " |
| 1058 | "to pickle"); |
| 1059 | goto finally; |
| 1060 | } |
| 1061 | repr = PyString_FromStringAndSize(NULL, (int)nbytes); |
| 1062 | if (repr == NULL) goto finally; |
| 1063 | pdata = (unsigned char *)PyString_AS_STRING(repr); |
| 1064 | i = _PyLong_AsByteArray((PyLongObject *)args, |
| 1065 | pdata, nbytes, |
| 1066 | 1 /* little endian */, 1 /* signed */); |
| 1067 | if (i < 0) goto finally; |
| 1068 | /* If the long is negative, this may be a byte more than |
| 1069 | * needed. This is so iff the MSB is all redundant sign |
| 1070 | * bits. |
| 1071 | */ |
| 1072 | if (sign < 0 && nbytes > 1 && pdata[nbytes - 1] == 0xff && |
| 1073 | (pdata[nbytes - 2] & 0x80) != 0) |
| 1074 | --nbytes; |
| 1075 | |
| 1076 | if (nbytes < 256) { |
| 1077 | c_str[0] = LONG1; |
| 1078 | c_str[1] = (char)nbytes; |
| 1079 | size = 2; |
| 1080 | } |
| 1081 | else { |
| 1082 | c_str[0] = LONG4; |
| 1083 | size = (int)nbytes; |
| 1084 | for (i = 1; i < 5; i++) { |
| 1085 | c_str[i] = (char)(size & 0xff); |
| 1086 | size >>= 8; |
| 1087 | } |
| 1088 | size = 5; |
| 1089 | } |
| 1090 | i = self->write_func(self, c_str, size); |
| 1091 | if (i < 0) goto finally; |
| 1092 | i = self->write_func(self, (char *)pdata, (int)nbytes); |
| 1093 | if (i < 0) goto finally; |
| 1094 | res = 0; |
| 1095 | goto finally; |
| 1096 | } |
| 1097 | |
| 1098 | /* proto < 2: write the repr and newline. This is quadratic-time |
| 1099 | * (in the number of digits), in both directions. |
| 1100 | */ |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1101 | if (!( repr = PyObject_Repr(args))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1102 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1103 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1104 | if ((size = PyString_Size(repr)) < 0) |
| 1105 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1106 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1107 | if (self->write_func(self, &l, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1108 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1109 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1110 | if (self->write_func(self, |
| 1111 | PyString_AS_STRING((PyStringObject *)repr), |
| 1112 | size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1113 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1114 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1115 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1116 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1117 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1118 | res = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1119 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1120 | finally: |
| 1121 | Py_XDECREF(repr); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1122 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1123 | } |
| 1124 | |
| 1125 | |
| 1126 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1127 | save_float(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1128 | { |
| 1129 | double x = PyFloat_AS_DOUBLE((PyFloatObject *)args); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1130 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1131 | if (self->bin) { |
| 1132 | int s, e; |
| 1133 | double f; |
| 1134 | long fhi, flo; |
| 1135 | char str[9]; |
| 1136 | unsigned char *p = (unsigned char *)str; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1137 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1138 | *p = BINFLOAT; |
| 1139 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1140 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1141 | if (x < 0) { |
| 1142 | s = 1; |
| 1143 | x = -x; |
| 1144 | } |
| 1145 | else |
| 1146 | s = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1147 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1148 | f = frexp(x, &e); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1149 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1150 | /* Normalize f to be in the range [1.0, 2.0) */ |
| 1151 | if (0.5 <= f && f < 1.0) { |
| 1152 | f *= 2.0; |
| 1153 | e--; |
| 1154 | } |
| 1155 | else if (f == 0.0) { |
| 1156 | e = 0; |
| 1157 | } |
| 1158 | else { |
| 1159 | PyErr_SetString(PyExc_SystemError, |
| 1160 | "frexp() result out of range"); |
| 1161 | return -1; |
| 1162 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1163 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1164 | if (e >= 1024) { |
| 1165 | /* XXX 1024 itself is reserved for Inf/NaN */ |
| 1166 | PyErr_SetString(PyExc_OverflowError, |
| 1167 | "float too large to pack with d format"); |
| 1168 | return -1; |
| 1169 | } |
| 1170 | else if (e < -1022) { |
| 1171 | /* Gradual underflow */ |
| 1172 | f = ldexp(f, 1022 + e); |
| 1173 | e = 0; |
| 1174 | } |
| 1175 | else if (!(e == 0 && f == 0.0)) { |
| 1176 | e += 1023; |
| 1177 | f -= 1.0; /* Get rid of leading 1 */ |
| 1178 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1179 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1180 | /* fhi receives the high 28 bits; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1181 | flo the low 24 bits (== 52 bits) */ |
| 1182 | f *= 268435456.0; /* 2**28 */ |
| 1183 | fhi = (long) floor(f); /* Truncate */ |
| 1184 | f -= (double)fhi; |
| 1185 | f *= 16777216.0; /* 2**24 */ |
| 1186 | flo = (long) floor(f + 0.5); /* Round */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1187 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1188 | /* First byte */ |
| 1189 | *p = (s<<7) | (e>>4); |
| 1190 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1191 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1192 | /* Second byte */ |
| 1193 | *p = (unsigned char) (((e&0xF)<<4) | (fhi>>24)); |
| 1194 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1195 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1196 | /* Third byte */ |
| 1197 | *p = (unsigned char) ((fhi>>16) & 0xFF); |
| 1198 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1199 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1200 | /* Fourth byte */ |
| 1201 | *p = (unsigned char) ((fhi>>8) & 0xFF); |
| 1202 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1203 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1204 | /* Fifth byte */ |
| 1205 | *p = (unsigned char) (fhi & 0xFF); |
| 1206 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1207 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1208 | /* Sixth byte */ |
| 1209 | *p = (unsigned char) ((flo>>16) & 0xFF); |
| 1210 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1211 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1212 | /* Seventh byte */ |
| 1213 | *p = (unsigned char) ((flo>>8) & 0xFF); |
| 1214 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1215 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1216 | /* Eighth byte */ |
| 1217 | *p = (unsigned char) (flo & 0xFF); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1218 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1219 | if (self->write_func(self, str, 9) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1220 | return -1; |
| 1221 | } |
| 1222 | else { |
| 1223 | char c_str[250]; |
| 1224 | c_str[0] = FLOAT; |
| 1225 | PyOS_snprintf(c_str + 1, sizeof(c_str) - 1, "%.17g\n", x); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1226 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1227 | if (self->write_func(self, c_str, strlen(c_str)) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1228 | return -1; |
| 1229 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1230 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1231 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1232 | } |
| 1233 | |
| 1234 | |
| 1235 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1236 | save_string(Picklerobject *self, PyObject *args, int doput) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1237 | { |
| 1238 | int size, len; |
| 1239 | PyObject *repr=0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1240 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1241 | if ((size = PyString_Size(args)) < 0) |
| 1242 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1243 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1244 | if (!self->bin) { |
| 1245 | char *repr_str; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1246 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1247 | static char string = STRING; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1248 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1249 | if (!( repr = PyObject_Repr(args))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1250 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1251 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1252 | if ((len = PyString_Size(repr)) < 0) |
| 1253 | goto err; |
| 1254 | repr_str = PyString_AS_STRING((PyStringObject *)repr); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1255 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1256 | if (self->write_func(self, &string, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1257 | goto err; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1258 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1259 | if (self->write_func(self, repr_str, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1260 | goto err; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1261 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1262 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1263 | goto err; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1264 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1265 | Py_XDECREF(repr); |
| 1266 | } |
| 1267 | else { |
| 1268 | int i; |
| 1269 | char c_str[5]; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1270 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1271 | if ((size = PyString_Size(args)) < 0) |
| 1272 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1273 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1274 | if (size < 256) { |
| 1275 | c_str[0] = SHORT_BINSTRING; |
| 1276 | c_str[1] = size; |
| 1277 | len = 2; |
| 1278 | } |
| 1279 | else { |
| 1280 | c_str[0] = BINSTRING; |
| 1281 | for (i = 1; i < 5; i++) |
| 1282 | c_str[i] = (int)(size >> ((i - 1) * 8)); |
| 1283 | len = 5; |
| 1284 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1285 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1286 | if (self->write_func(self, c_str, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1287 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1288 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1289 | if (size > 128 && Pdata_Check(self->file)) { |
| 1290 | if (write_other(self, NULL, 0) < 0) return -1; |
| 1291 | PDATA_APPEND(self->file, args, -1); |
| 1292 | } |
| 1293 | else { |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1294 | if (self->write_func(self, |
| 1295 | PyString_AS_STRING( |
| 1296 | (PyStringObject *)args), |
| 1297 | size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1298 | return -1; |
| 1299 | } |
| 1300 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1301 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1302 | if (doput) |
| 1303 | if (put(self, args) < 0) |
| 1304 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1305 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1306 | return 0; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 1307 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1308 | err: |
| 1309 | Py_XDECREF(repr); |
| 1310 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1311 | } |
| 1312 | |
| 1313 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 1314 | #ifdef Py_USING_UNICODE |
Guido van Rossum | fb10c3f | 2000-12-19 02:08:38 +0000 | [diff] [blame] | 1315 | /* A copy of PyUnicode_EncodeRawUnicodeEscape() that also translates |
| 1316 | backslash and newline characters to \uXXXX escapes. */ |
| 1317 | static PyObject * |
| 1318 | modified_EncodeRawUnicodeEscape(const Py_UNICODE *s, int size) |
| 1319 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1320 | PyObject *repr; |
| 1321 | char *p; |
| 1322 | char *q; |
Guido van Rossum | fb10c3f | 2000-12-19 02:08:38 +0000 | [diff] [blame] | 1323 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1324 | static const char *hexdigit = "0123456789ABCDEF"; |
Guido van Rossum | fb10c3f | 2000-12-19 02:08:38 +0000 | [diff] [blame] | 1325 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1326 | repr = PyString_FromStringAndSize(NULL, 6 * size); |
| 1327 | if (repr == NULL) |
| 1328 | return NULL; |
| 1329 | if (size == 0) |
| 1330 | return repr; |
| 1331 | |
| 1332 | p = q = PyString_AS_STRING(repr); |
| 1333 | while (size-- > 0) { |
| 1334 | Py_UNICODE ch = *s++; |
| 1335 | /* Map 16-bit characters to '\uxxxx' */ |
| 1336 | if (ch >= 256 || ch == '\\' || ch == '\n') { |
| 1337 | *p++ = '\\'; |
| 1338 | *p++ = 'u'; |
| 1339 | *p++ = hexdigit[(ch >> 12) & 0xf]; |
| 1340 | *p++ = hexdigit[(ch >> 8) & 0xf]; |
| 1341 | *p++ = hexdigit[(ch >> 4) & 0xf]; |
| 1342 | *p++ = hexdigit[ch & 15]; |
| 1343 | } |
| 1344 | /* Copy everything else as-is */ |
| 1345 | else |
| 1346 | *p++ = (char) ch; |
| 1347 | } |
| 1348 | *p = '\0'; |
Tim Peters | 5de9842 | 2002-04-27 18:44:32 +0000 | [diff] [blame] | 1349 | _PyString_Resize(&repr, p - q); |
Guido van Rossum | fb10c3f | 2000-12-19 02:08:38 +0000 | [diff] [blame] | 1350 | return repr; |
Guido van Rossum | fb10c3f | 2000-12-19 02:08:38 +0000 | [diff] [blame] | 1351 | } |
| 1352 | |
| 1353 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1354 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1355 | save_unicode(Picklerobject *self, PyObject *args, int doput) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1356 | { |
| 1357 | int size, len; |
| 1358 | PyObject *repr=0; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1359 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1360 | if (!PyUnicode_Check(args)) |
| 1361 | return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1362 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1363 | if (!self->bin) { |
| 1364 | char *repr_str; |
| 1365 | static char string = UNICODE; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1366 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1367 | repr = modified_EncodeRawUnicodeEscape( |
| 1368 | PyUnicode_AS_UNICODE(args), PyUnicode_GET_SIZE(args)); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1369 | if (!repr) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1370 | return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1371 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1372 | if ((len = PyString_Size(repr)) < 0) |
| 1373 | goto err; |
| 1374 | repr_str = PyString_AS_STRING((PyStringObject *)repr); |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1375 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1376 | if (self->write_func(self, &string, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1377 | goto err; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1378 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1379 | if (self->write_func(self, repr_str, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1380 | goto err; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1381 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1382 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1383 | goto err; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1384 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1385 | Py_XDECREF(repr); |
| 1386 | } |
| 1387 | else { |
| 1388 | int i; |
| 1389 | char c_str[5]; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1390 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1391 | if (!( repr = PyUnicode_AsUTF8String(args))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1392 | return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1393 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1394 | if ((size = PyString_Size(repr)) < 0) |
| 1395 | goto err; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1396 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1397 | c_str[0] = BINUNICODE; |
| 1398 | for (i = 1; i < 5; i++) |
| 1399 | c_str[i] = (int)(size >> ((i - 1) * 8)); |
| 1400 | len = 5; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1401 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1402 | if (self->write_func(self, c_str, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1403 | goto err; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1404 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1405 | if (size > 128 && Pdata_Check(self->file)) { |
| 1406 | if (write_other(self, NULL, 0) < 0) |
| 1407 | goto err; |
| 1408 | PDATA_APPEND(self->file, repr, -1); |
| 1409 | } |
| 1410 | else { |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1411 | if (self->write_func(self, PyString_AS_STRING(repr), |
| 1412 | size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1413 | goto err; |
| 1414 | } |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1415 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1416 | Py_DECREF(repr); |
| 1417 | } |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1418 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1419 | if (doput) |
| 1420 | if (put(self, args) < 0) |
| 1421 | return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1422 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1423 | return 0; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1424 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1425 | err: |
| 1426 | Py_XDECREF(repr); |
| 1427 | return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1428 | } |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 1429 | #endif |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1430 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1431 | /* A helper for save_tuple. Push the len elements in tuple t on the stack. */ |
| 1432 | static int |
Tim Peters | 6792014 | 2003-02-05 03:46:17 +0000 | [diff] [blame] | 1433 | store_tuple_elements(Picklerobject *self, PyObject *t, int len) |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1434 | { |
| 1435 | int i; |
| 1436 | int res = -1; /* guilty until proved innocent */ |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1437 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1438 | assert(PyTuple_Size(t) == len); |
| 1439 | |
| 1440 | for (i = 0; i < len; i++) { |
| 1441 | PyObject *element = PyTuple_GET_ITEM(t, i); |
| 1442 | |
| 1443 | if (element == NULL) |
| 1444 | goto finally; |
| 1445 | if (save(self, element, 0) < 0) |
| 1446 | goto finally; |
| 1447 | } |
| 1448 | res = 0; |
| 1449 | |
| 1450 | finally: |
| 1451 | return res; |
| 1452 | } |
| 1453 | |
| 1454 | /* Tuples are ubiquitous in the pickle protocols, so many techniques are |
| 1455 | * used across protocols to minimize the space needed to pickle them. |
Tim Peters | 6792014 | 2003-02-05 03:46:17 +0000 | [diff] [blame] | 1456 | * Tuples are also the only builtin immutable type that can be recursive |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1457 | * (a tuple can be reached from itself), and that requires some subtle |
| 1458 | * magic so that it works in all cases. IOW, this is a long routine. |
| 1459 | */ |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 1460 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1461 | save_tuple(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1462 | { |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1463 | PyObject *py_tuple_id = NULL; |
| 1464 | int len, i; |
| 1465 | int res = -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1466 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1467 | static char tuple = TUPLE; |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1468 | static char pop = POP; |
| 1469 | static char pop_mark = POP_MARK; |
| 1470 | static char len2opcode[] = {EMPTY_TUPLE, TUPLE1, TUPLE2, TUPLE3}; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1471 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1472 | if ((len = PyTuple_Size(args)) < 0) |
| 1473 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1474 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1475 | if (len == 0) { |
| 1476 | char c_str[2]; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 1477 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1478 | if (self->proto) { |
| 1479 | c_str[0] = EMPTY_TUPLE; |
| 1480 | len = 1; |
| 1481 | } |
| 1482 | else { |
| 1483 | c_str[0] = MARK; |
| 1484 | c_str[1] = TUPLE; |
| 1485 | len = 2; |
| 1486 | } |
| 1487 | if (self->write_func(self, c_str, len) >= 0) |
| 1488 | res = 0; |
| 1489 | /* Don't memoize an empty tuple. */ |
| 1490 | goto finally; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1491 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1492 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1493 | /* A non-empty tuple. */ |
| 1494 | |
| 1495 | /* id(tuple) isn't in the memo now. If it shows up there after |
| 1496 | * saving the tuple elements, the tuple must be recursive, in |
| 1497 | * which case we'll pop everything we put on the stack, and fetch |
| 1498 | * its value from the memo. |
| 1499 | */ |
| 1500 | py_tuple_id = PyLong_FromVoidPtr(args); |
| 1501 | if (py_tuple_id == NULL) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1502 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1503 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1504 | if (len <= 3 && self->proto >= 2) { |
| 1505 | /* Use TUPLE{1,2,3} opcodes. */ |
Tim Peters | 6792014 | 2003-02-05 03:46:17 +0000 | [diff] [blame] | 1506 | if (store_tuple_elements(self, args, len) < 0) |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1507 | goto finally; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1508 | if (PyDict_GetItem(self->memo, py_tuple_id)) { |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1509 | /* pop the len elements */ |
| 1510 | for (i = 0; i < len; ++i) |
| 1511 | if (self->write_func(self, &pop, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1512 | goto finally; |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1513 | /* fetch from memo */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1514 | if (get(self, py_tuple_id) < 0) |
| 1515 | goto finally; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1516 | res = 0; |
| 1517 | goto finally; |
| 1518 | } |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1519 | /* Not recursive. */ |
| 1520 | if (self->write_func(self, len2opcode + len, 1) < 0) |
| 1521 | goto finally; |
| 1522 | goto memoize; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1523 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1524 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1525 | /* proto < 2 and len > 0, or proto >= 2 and len > 3. |
| 1526 | * Generate MARK elt1 elt2 ... TUPLE |
| 1527 | */ |
| 1528 | if (self->write_func(self, &MARKv, 1) < 0) |
| 1529 | goto finally; |
| 1530 | |
Tim Peters | 6792014 | 2003-02-05 03:46:17 +0000 | [diff] [blame] | 1531 | if (store_tuple_elements(self, args, len) < 0) |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1532 | goto finally; |
| 1533 | |
| 1534 | if (PyDict_GetItem(self->memo, py_tuple_id)) { |
| 1535 | /* pop the stack stuff we pushed */ |
| 1536 | if (self->bin) { |
| 1537 | if (self->write_func(self, &pop_mark, 1) < 0) |
| 1538 | goto finally; |
| 1539 | } |
| 1540 | else { |
| 1541 | /* Note that we pop one more than len, to remove |
| 1542 | * the MARK too. |
| 1543 | */ |
| 1544 | for (i = 0; i <= len; i++) |
| 1545 | if (self->write_func(self, &pop, 1) < 0) |
| 1546 | goto finally; |
| 1547 | } |
| 1548 | /* fetch from memo */ |
| 1549 | if (get(self, py_tuple_id) >= 0) |
| 1550 | res = 0; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1551 | goto finally; |
| 1552 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1553 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1554 | /* Not recursive. */ |
| 1555 | if (self->write_func(self, &tuple, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1556 | goto finally; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 1557 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 1558 | memoize: |
| 1559 | if (put(self, args) >= 0) |
| 1560 | res = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1561 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1562 | finally: |
| 1563 | Py_XDECREF(py_tuple_id); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1564 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1565 | } |
| 1566 | |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1567 | /* iter is an iterator giving items, and we batch up chunks of |
| 1568 | * MARK item item ... item APPENDS |
| 1569 | * opcode sequences. Calling code should have arranged to first create an |
| 1570 | * empty list, or list-like object, for the APPENDS to operate on. |
| 1571 | * Returns 0 on success, <0 on error. |
| 1572 | */ |
| 1573 | static int |
| 1574 | batch_list(Picklerobject *self, PyObject *iter) |
| 1575 | { |
| 1576 | PyObject *obj; |
| 1577 | PyObject *slice[BATCHSIZE]; |
| 1578 | int i, n; |
| 1579 | |
| 1580 | static char append = APPEND; |
| 1581 | static char appends = APPENDS; |
| 1582 | |
| 1583 | assert(iter != NULL); |
| 1584 | |
| 1585 | if (self->proto == 0) { |
| 1586 | /* APPENDS isn't available; do one at a time. */ |
| 1587 | for (;;) { |
| 1588 | obj = PyIter_Next(iter); |
| 1589 | if (obj == NULL) { |
| 1590 | if (PyErr_Occurred()) |
| 1591 | return -1; |
| 1592 | break; |
| 1593 | } |
| 1594 | i = save(self, obj, 0); |
| 1595 | Py_DECREF(obj); |
| 1596 | if (i < 0) |
| 1597 | return -1; |
| 1598 | if (self->write_func(self, &append, 1) < 0) |
| 1599 | return -1; |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1600 | } |
| 1601 | return 0; |
| 1602 | } |
| 1603 | |
| 1604 | /* proto > 0: write in batches of BATCHSIZE. */ |
| 1605 | do { |
| 1606 | /* Get next group of (no more than) BATCHSIZE elements. */ |
| 1607 | for (n = 0; n < BATCHSIZE; ++n) { |
| 1608 | obj = PyIter_Next(iter); |
| 1609 | if (obj == NULL) { |
| 1610 | if (PyErr_Occurred()) |
| 1611 | goto BatchFailed; |
| 1612 | break; |
| 1613 | } |
| 1614 | slice[n] = obj; |
| 1615 | } |
| 1616 | |
| 1617 | if (n > 1) { |
| 1618 | /* Pump out MARK, slice[0:n], APPENDS. */ |
| 1619 | if (self->write_func(self, &MARKv, 1) < 0) |
| 1620 | goto BatchFailed; |
| 1621 | for (i = 0; i < n; ++i) { |
| 1622 | if (save(self, slice[i], 0) < 0) |
| 1623 | goto BatchFailed; |
| 1624 | } |
| 1625 | if (self->write_func(self, &appends, 1) < 0) |
| 1626 | goto BatchFailed; |
| 1627 | } |
| 1628 | else if (n == 1) { |
| 1629 | if (save(self, slice[0], 0) < 0) |
| 1630 | goto BatchFailed; |
| 1631 | if (self->write_func(self, &append, 1) < 0) |
| 1632 | goto BatchFailed; |
| 1633 | } |
| 1634 | |
| 1635 | for (i = 0; i < n; ++i) { |
| 1636 | Py_DECREF(slice[i]); |
| 1637 | } |
Tim Peters | 90975f1 | 2003-02-12 05:28:58 +0000 | [diff] [blame] | 1638 | } while (n == BATCHSIZE); |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1639 | return 0; |
| 1640 | |
| 1641 | BatchFailed: |
| 1642 | while (--n >= 0) { |
| 1643 | Py_DECREF(slice[n]); |
| 1644 | } |
| 1645 | return -1; |
| 1646 | } |
| 1647 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1648 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1649 | save_list(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1650 | { |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1651 | int res = -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1652 | char s[3]; |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1653 | int len; |
| 1654 | PyObject *iter; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1655 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1656 | if (self->fast && !fast_save_enter(self, args)) |
| 1657 | goto finally; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 1658 | |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1659 | /* Create an empty list. */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1660 | if (self->bin) { |
| 1661 | s[0] = EMPTY_LIST; |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1662 | len = 1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1663 | } |
| 1664 | else { |
| 1665 | s[0] = MARK; |
| 1666 | s[1] = LIST; |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1667 | len = 2; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1668 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1669 | |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1670 | if (self->write_func(self, s, len) < 0) |
| 1671 | goto finally; |
| 1672 | |
| 1673 | /* Get list length, and bow out early if empty. */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1674 | if ((len = PyList_Size(args)) < 0) |
| 1675 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1676 | |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1677 | /* Memoize. */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1678 | if (len == 0) { |
Tim Peters | 90975f1 | 2003-02-12 05:28:58 +0000 | [diff] [blame] | 1679 | if (put(self, args) >= 0) |
| 1680 | res = 0; |
| 1681 | goto finally; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1682 | } |
Tim Peters | 90975f1 | 2003-02-12 05:28:58 +0000 | [diff] [blame] | 1683 | if (put2(self, args) < 0) |
| 1684 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1685 | |
Tim Peters | 1092d64 | 2003-02-11 21:06:20 +0000 | [diff] [blame] | 1686 | /* Materialize the list elements. */ |
| 1687 | iter = PyObject_GetIter(args); |
| 1688 | if (iter == NULL) |
| 1689 | goto finally; |
| 1690 | res = batch_list(self, iter); |
| 1691 | Py_DECREF(iter); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1692 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1693 | finally: |
| 1694 | if (self->fast && !fast_save_leave(self, args)) |
| 1695 | res = -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1696 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1697 | return res; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1698 | } |
| 1699 | |
| 1700 | |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1701 | /* iter is an iterator giving (key, value) pairs, and we batch up chunks of |
| 1702 | * MARK key value ... key value SETITEMS |
| 1703 | * opcode sequences. Calling code should have arranged to first create an |
| 1704 | * empty dict, or dict-like object, for the SETITEMS to operate on. |
| 1705 | * Returns 0 on success, <0 on error. |
| 1706 | * |
| 1707 | * This is very much like batch_list(). The difference between saving |
| 1708 | * elements directly, and picking apart two-tuples, is so long-winded at |
| 1709 | * the C level, though, that attempts to combine these routines were too |
| 1710 | * ugly to bear. |
| 1711 | */ |
| 1712 | static int |
| 1713 | batch_dict(Picklerobject *self, PyObject *iter) |
| 1714 | { |
| 1715 | PyObject *p; |
| 1716 | PyObject *slice[BATCHSIZE]; |
| 1717 | int i, n; |
| 1718 | |
| 1719 | static char setitem = SETITEM; |
| 1720 | static char setitems = SETITEMS; |
| 1721 | |
| 1722 | assert(iter != NULL); |
| 1723 | |
| 1724 | if (self->proto == 0) { |
| 1725 | /* SETITEMS isn't available; do one at a time. */ |
| 1726 | for (;;) { |
| 1727 | p = PyIter_Next(iter); |
| 1728 | if (p == NULL) { |
| 1729 | if (PyErr_Occurred()) |
| 1730 | return -1; |
| 1731 | break; |
| 1732 | } |
| 1733 | if (!PyTuple_Check(p) || PyTuple_Size(p) != 2) { |
| 1734 | PyErr_SetString(PyExc_TypeError, "dict items " |
| 1735 | "iterator must return 2-tuples"); |
| 1736 | return -1; |
| 1737 | } |
| 1738 | i = save(self, PyTuple_GET_ITEM(p, 0), 0); |
| 1739 | if (i >= 0) |
| 1740 | i = save(self, PyTuple_GET_ITEM(p, 1), 0); |
| 1741 | Py_DECREF(p); |
| 1742 | if (i < 0) |
| 1743 | return -1; |
| 1744 | if (self->write_func(self, &setitem, 1) < 0) |
| 1745 | return -1; |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1746 | } |
| 1747 | return 0; |
| 1748 | } |
| 1749 | |
| 1750 | /* proto > 0: write in batches of BATCHSIZE. */ |
| 1751 | do { |
| 1752 | /* Get next group of (no more than) BATCHSIZE elements. */ |
| 1753 | for (n = 0; n < BATCHSIZE; ++n) { |
| 1754 | p = PyIter_Next(iter); |
| 1755 | if (p == NULL) { |
| 1756 | if (PyErr_Occurred()) |
| 1757 | goto BatchFailed; |
| 1758 | break; |
| 1759 | } |
| 1760 | if (!PyTuple_Check(p) || PyTuple_Size(p) != 2) { |
| 1761 | PyErr_SetString(PyExc_TypeError, "dict items " |
| 1762 | "iterator must return 2-tuples"); |
| 1763 | goto BatchFailed; |
| 1764 | } |
| 1765 | slice[n] = p; |
| 1766 | } |
| 1767 | |
| 1768 | if (n > 1) { |
| 1769 | /* Pump out MARK, slice[0:n], SETITEMS. */ |
| 1770 | if (self->write_func(self, &MARKv, 1) < 0) |
| 1771 | goto BatchFailed; |
| 1772 | for (i = 0; i < n; ++i) { |
| 1773 | p = slice[i]; |
| 1774 | if (save(self, PyTuple_GET_ITEM(p, 0), 0) < 0) |
| 1775 | goto BatchFailed; |
| 1776 | if (save(self, PyTuple_GET_ITEM(p, 1), 0) < 0) |
| 1777 | goto BatchFailed; |
| 1778 | } |
| 1779 | if (self->write_func(self, &setitems, 1) < 0) |
| 1780 | goto BatchFailed; |
| 1781 | } |
| 1782 | else if (n == 1) { |
| 1783 | p = slice[0]; |
| 1784 | if (save(self, PyTuple_GET_ITEM(p, 0), 0) < 0) |
| 1785 | goto BatchFailed; |
| 1786 | if (save(self, PyTuple_GET_ITEM(p, 1), 0) < 0) |
| 1787 | goto BatchFailed; |
| 1788 | if (self->write_func(self, &setitem, 1) < 0) |
| 1789 | goto BatchFailed; |
| 1790 | } |
| 1791 | |
| 1792 | for (i = 0; i < n; ++i) { |
| 1793 | Py_DECREF(slice[i]); |
| 1794 | } |
Tim Peters | 90975f1 | 2003-02-12 05:28:58 +0000 | [diff] [blame] | 1795 | } while (n == BATCHSIZE); |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1796 | return 0; |
| 1797 | |
| 1798 | BatchFailed: |
| 1799 | while (--n >= 0) { |
| 1800 | Py_DECREF(slice[n]); |
| 1801 | } |
| 1802 | return -1; |
| 1803 | } |
| 1804 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1805 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1806 | save_dict(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1807 | { |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1808 | int res = -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1809 | char s[3]; |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1810 | int len; |
| 1811 | PyObject *iter; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1812 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1813 | if (self->fast && !fast_save_enter(self, args)) |
| 1814 | goto finally; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 1815 | |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1816 | /* Create an empty dict. */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1817 | if (self->bin) { |
| 1818 | s[0] = EMPTY_DICT; |
| 1819 | len = 1; |
| 1820 | } |
| 1821 | else { |
| 1822 | s[0] = MARK; |
| 1823 | s[1] = DICT; |
| 1824 | len = 2; |
| 1825 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1826 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1827 | if (self->write_func(self, s, len) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1828 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1829 | |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1830 | /* Get dict size, and bow out early if empty. */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1831 | if ((len = PyDict_Size(args)) < 0) |
| 1832 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1833 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1834 | if (len == 0) { |
Tim Peters | 90975f1 | 2003-02-12 05:28:58 +0000 | [diff] [blame] | 1835 | if (put(self, args) >= 0) |
| 1836 | res = 0; |
| 1837 | goto finally; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1838 | } |
Tim Peters | 90975f1 | 2003-02-12 05:28:58 +0000 | [diff] [blame] | 1839 | if (put2(self, args) < 0) |
| 1840 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1841 | |
Tim Peters | 42f08ac | 2003-02-11 22:43:24 +0000 | [diff] [blame] | 1842 | /* Materialize the dict items. */ |
| 1843 | iter = PyObject_CallMethod(args, "iteritems", "()"); |
| 1844 | if (iter == NULL) |
| 1845 | goto finally; |
| 1846 | res = batch_dict(self, iter); |
| 1847 | Py_DECREF(iter); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1848 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1849 | finally: |
| 1850 | if (self->fast && !fast_save_leave(self, args)) |
| 1851 | res = -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1852 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1853 | return res; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1854 | } |
| 1855 | |
| 1856 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 1857 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1858 | save_inst(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1859 | { |
| 1860 | PyObject *class = 0, *module = 0, *name = 0, *state = 0, |
| 1861 | *getinitargs_func = 0, *getstate_func = 0, *class_args = 0; |
| 1862 | char *module_str, *name_str; |
| 1863 | int module_size, name_size, res = -1; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1864 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1865 | static char inst = INST, obj = OBJ, build = BUILD; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1866 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1867 | if (self->fast && !fast_save_enter(self, args)) |
| 1868 | goto finally; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 1869 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1870 | if (self->write_func(self, &MARKv, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1871 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1872 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1873 | if (!( class = PyObject_GetAttr(args, __class___str))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1874 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1875 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1876 | if (self->bin) { |
| 1877 | if (save(self, class, 0) < 0) |
| 1878 | goto finally; |
| 1879 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1880 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1881 | if ((getinitargs_func = PyObject_GetAttr(args, __getinitargs___str))) { |
| 1882 | PyObject *element = 0; |
| 1883 | int i, len; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1884 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1885 | if (!( class_args = |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1886 | PyObject_Call(getinitargs_func, empty_tuple, NULL))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1887 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1888 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1889 | if ((len = PyObject_Size(class_args)) < 0) |
| 1890 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1891 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1892 | for (i = 0; i < len; i++) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1893 | if (!( element = PySequence_GetItem(class_args, i))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1894 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1895 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1896 | if (save(self, element, 0) < 0) { |
| 1897 | Py_DECREF(element); |
| 1898 | goto finally; |
| 1899 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1900 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1901 | Py_DECREF(element); |
| 1902 | } |
| 1903 | } |
| 1904 | else { |
| 1905 | PyErr_Clear(); |
| 1906 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1907 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1908 | if (!self->bin) { |
| 1909 | if (!( name = ((PyClassObject *)class)->cl_name )) { |
| 1910 | PyErr_SetString(PicklingError, "class has no name"); |
| 1911 | goto finally; |
| 1912 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1913 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1914 | if (!( module = whichmodule(class, name))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1915 | goto finally; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 1916 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 1917 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1918 | if ((module_size = PyString_Size(module)) < 0 || |
| 1919 | (name_size = PyString_Size(name)) < 0) |
| 1920 | goto finally; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 1921 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1922 | module_str = PyString_AS_STRING((PyStringObject *)module); |
| 1923 | name_str = PyString_AS_STRING((PyStringObject *)name); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1924 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1925 | if (self->write_func(self, &inst, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1926 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1927 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1928 | if (self->write_func(self, module_str, module_size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1929 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1930 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1931 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1932 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1933 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1934 | if (self->write_func(self, name_str, name_size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1935 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1936 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1937 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1938 | goto finally; |
| 1939 | } |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1940 | else if (self->write_func(self, &obj, 1) < 0) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1941 | goto finally; |
| 1942 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1943 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1944 | if ((getstate_func = PyObject_GetAttr(args, __getstate___str))) { |
| 1945 | state = PyObject_Call(getstate_func, empty_tuple, NULL); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1946 | if (!state) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1947 | goto finally; |
| 1948 | } |
| 1949 | else { |
| 1950 | PyErr_Clear(); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1951 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1952 | if (!( state = PyObject_GetAttr(args, __dict___str))) { |
| 1953 | PyErr_Clear(); |
| 1954 | res = 0; |
| 1955 | goto finally; |
| 1956 | } |
| 1957 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1958 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1959 | if (!PyDict_Check(state)) { |
| 1960 | if (put2(self, args) < 0) |
| 1961 | goto finally; |
| 1962 | } |
| 1963 | else { |
| 1964 | if (put(self, args) < 0) |
| 1965 | goto finally; |
| 1966 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 1967 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1968 | if (save(self, state, 0) < 0) |
| 1969 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1970 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 1971 | if (self->write_func(self, &build, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1972 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1973 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1974 | res = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1975 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1976 | finally: |
| 1977 | if (self->fast && !fast_save_leave(self, args)) |
| 1978 | res = -1; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 1979 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1980 | Py_XDECREF(module); |
| 1981 | Py_XDECREF(class); |
| 1982 | Py_XDECREF(state); |
| 1983 | Py_XDECREF(getinitargs_func); |
| 1984 | Py_XDECREF(getstate_func); |
| 1985 | Py_XDECREF(class_args); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1986 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1987 | return res; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1988 | } |
| 1989 | |
| 1990 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 1991 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 1992 | save_global(Picklerobject *self, PyObject *args, PyObject *name) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1993 | { |
Jeremy Hylton | 9ee91f1 | 2002-07-11 22:02:33 +0000 | [diff] [blame] | 1994 | PyObject *global_name = 0, *module = 0, *mod = 0, *klass = 0; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1995 | char *name_str, *module_str; |
| 1996 | int module_size, name_size, res = -1; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1997 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 1998 | static char global = GLOBAL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 1999 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2000 | if (name) { |
| 2001 | global_name = name; |
| 2002 | Py_INCREF(global_name); |
| 2003 | } |
| 2004 | else { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2005 | if (!( global_name = PyObject_GetAttr(args, __name___str))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2006 | goto finally; |
| 2007 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2008 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2009 | if (!( module = whichmodule(args, global_name))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2010 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2011 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2012 | if ((module_size = PyString_Size(module)) < 0 || |
| 2013 | (name_size = PyString_Size(global_name)) < 0) |
| 2014 | goto finally; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 2015 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2016 | module_str = PyString_AS_STRING((PyStringObject *)module); |
| 2017 | name_str = PyString_AS_STRING((PyStringObject *)global_name); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2018 | |
Guido van Rossum | 75bfd05 | 2002-12-24 18:10:07 +0000 | [diff] [blame] | 2019 | /* XXX This can be doing a relative import. Clearly it shouldn't, |
| 2020 | but I don't know how to stop it. :-( */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2021 | mod = PyImport_ImportModule(module_str); |
| 2022 | if (mod == NULL) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2023 | cPickle_ErrFormat(PicklingError, |
| 2024 | "Can't pickle %s: it's not found as %s.%s", |
| 2025 | "OSS", args, module, global_name); |
| 2026 | goto finally; |
| 2027 | } |
Jeremy Hylton | 0e1f7a8 | 2002-07-11 22:01:40 +0000 | [diff] [blame] | 2028 | klass = PyObject_GetAttrString(mod, name_str); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2029 | if (klass == NULL) { |
| 2030 | cPickle_ErrFormat(PicklingError, |
| 2031 | "Can't pickle %s: it's not found as %s.%s", |
| 2032 | "OSS", args, module, global_name); |
| 2033 | goto finally; |
| 2034 | } |
| 2035 | if (klass != args) { |
Jeremy Hylton | 0e1f7a8 | 2002-07-11 22:01:40 +0000 | [diff] [blame] | 2036 | Py_DECREF(klass); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2037 | cPickle_ErrFormat(PicklingError, |
Tim Peters | 731098b | 2003-02-04 20:56:09 +0000 | [diff] [blame] | 2038 | "Can't pickle %s: it's not the same object " |
| 2039 | "as %s.%s", |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2040 | "OSS", args, module, global_name); |
| 2041 | goto finally; |
| 2042 | } |
Jeremy Hylton | 0e1f7a8 | 2002-07-11 22:01:40 +0000 | [diff] [blame] | 2043 | Py_DECREF(klass); |
Guido van Rossum | a92d16a | 2001-08-18 21:22:07 +0000 | [diff] [blame] | 2044 | |
Tim Peters | 731098b | 2003-02-04 20:56:09 +0000 | [diff] [blame] | 2045 | if (self->proto >= 2) { |
| 2046 | /* See whether this is in the extension registry, and if |
| 2047 | * so generate an EXT opcode. |
| 2048 | */ |
| 2049 | PyObject *py_code; /* extension code as Python object */ |
Tim Peters | 3e667d5 | 2003-02-04 21:47:44 +0000 | [diff] [blame] | 2050 | long code; /* extension code as C value */ |
Tim Peters | 731098b | 2003-02-04 20:56:09 +0000 | [diff] [blame] | 2051 | char c_str[5]; |
| 2052 | int n; |
| 2053 | |
| 2054 | PyTuple_SET_ITEM(two_tuple, 0, module); |
| 2055 | PyTuple_SET_ITEM(two_tuple, 1, global_name); |
| 2056 | py_code = PyDict_GetItem(extension_registry, two_tuple); |
| 2057 | if (py_code == NULL) |
| 2058 | goto gen_global; /* not registered */ |
| 2059 | |
| 2060 | /* Verify py_code has the right type and value. */ |
| 2061 | if (!PyInt_Check(py_code)) { |
| 2062 | cPickle_ErrFormat(PicklingError, "Can't pickle %s: " |
Tim Peters | 6288e23 | 2003-02-05 03:53:10 +0000 | [diff] [blame] | 2063 | "extension code %s isn't an integer", |
Tim Peters | 731098b | 2003-02-04 20:56:09 +0000 | [diff] [blame] | 2064 | "OO", args, py_code); |
| 2065 | goto finally; |
| 2066 | } |
| 2067 | code = PyInt_AS_LONG(py_code); |
| 2068 | if (code <= 0 || code > 0x7fffffffL) { |
| 2069 | cPickle_ErrFormat(PicklingError, "Can't pickle %s: " |
| 2070 | "extension code %ld is out of range", |
| 2071 | "Ol", args, code); |
| 2072 | goto finally; |
| 2073 | } |
| 2074 | |
| 2075 | /* Generate an EXT opcode. */ |
| 2076 | if (code <= 0xff) { |
| 2077 | c_str[0] = EXT1; |
| 2078 | c_str[1] = (char)code; |
| 2079 | n = 2; |
| 2080 | } |
| 2081 | else if (code <= 0xffff) { |
| 2082 | c_str[0] = EXT2; |
| 2083 | c_str[1] = (char)(code & 0xff); |
| 2084 | c_str[2] = (char)((code >> 8) & 0xff); |
| 2085 | n = 3; |
| 2086 | } |
| 2087 | else { |
| 2088 | c_str[0] = EXT4; |
| 2089 | c_str[1] = (char)(code & 0xff); |
| 2090 | c_str[2] = (char)((code >> 8) & 0xff); |
| 2091 | c_str[3] = (char)((code >> 16) & 0xff); |
| 2092 | c_str[4] = (char)((code >> 24) & 0xff); |
| 2093 | n = 5; |
| 2094 | } |
| 2095 | |
| 2096 | if (self->write_func(self, c_str, n) >= 0) |
| 2097 | res = 0; |
| 2098 | goto finally; /* and don't memoize */ |
| 2099 | } |
| 2100 | |
| 2101 | gen_global: |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2102 | if (self->write_func(self, &global, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2103 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2104 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2105 | if (self->write_func(self, module_str, module_size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2106 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2107 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2108 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2109 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2110 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2111 | if (self->write_func(self, name_str, name_size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2112 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2113 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2114 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2115 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2116 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2117 | if (put(self, args) < 0) |
| 2118 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2119 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2120 | res = 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2121 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2122 | finally: |
| 2123 | Py_XDECREF(module); |
| 2124 | Py_XDECREF(global_name); |
| 2125 | Py_XDECREF(mod); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2126 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2127 | return res; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2128 | } |
| 2129 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2130 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2131 | save_pers(Picklerobject *self, PyObject *args, PyObject *f) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2132 | { |
| 2133 | PyObject *pid = 0; |
| 2134 | int size, res = -1; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2135 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2136 | static char persid = PERSID, binpersid = BINPERSID; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2137 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2138 | Py_INCREF(args); |
| 2139 | ARG_TUP(self, args); |
| 2140 | if (self->arg) { |
| 2141 | pid = PyObject_Call(f, self->arg, NULL); |
| 2142 | FREE_ARG_TUP(self); |
| 2143 | } |
| 2144 | if (! pid) return -1; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2145 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2146 | if (pid != Py_None) { |
| 2147 | if (!self->bin) { |
| 2148 | if (!PyString_Check(pid)) { |
| 2149 | PyErr_SetString(PicklingError, |
| 2150 | "persistent id must be string"); |
| 2151 | goto finally; |
| 2152 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2153 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2154 | if (self->write_func(self, &persid, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2155 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2156 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2157 | if ((size = PyString_Size(pid)) < 0) |
| 2158 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2159 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2160 | if (self->write_func(self, |
| 2161 | PyString_AS_STRING( |
| 2162 | (PyStringObject *)pid), |
| 2163 | size) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2164 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2165 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2166 | if (self->write_func(self, "\n", 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2167 | goto finally; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 2168 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2169 | res = 1; |
| 2170 | goto finally; |
| 2171 | } |
| 2172 | else if (save(self, pid, 1) >= 0) { |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 2173 | if (self->write_func(self, &binpersid, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2174 | res = -1; |
| 2175 | else |
| 2176 | res = 1; |
| 2177 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2178 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2179 | goto finally; |
| 2180 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2181 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2182 | res = 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2183 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2184 | finally: |
| 2185 | Py_XDECREF(pid); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2186 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2187 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2188 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2189 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2190 | /* We're saving ob, and args is the 2-thru-5 tuple returned by the |
| 2191 | * appropriate __reduce__ method for ob. |
| 2192 | */ |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 2193 | static int |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2194 | save_reduce(Picklerobject *self, PyObject *args, PyObject *ob) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2195 | { |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2196 | PyObject *callable; |
| 2197 | PyObject *argtup; |
| 2198 | PyObject *state = NULL; |
| 2199 | PyObject *listitems = NULL; |
| 2200 | PyObject *dictitems = NULL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2201 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2202 | int use_newobj = self->proto >= 2; |
| 2203 | |
| 2204 | static char reduce = REDUCE; |
| 2205 | static char build = BUILD; |
| 2206 | static char newobj = NEWOBJ; |
| 2207 | |
| 2208 | if (! PyArg_UnpackTuple(args, "save_reduce", 2, 5, |
| 2209 | &callable, |
| 2210 | &argtup, |
| 2211 | &state, |
| 2212 | &listitems, |
| 2213 | &dictitems)) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2214 | return -1; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2215 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2216 | if (state == Py_None) |
| 2217 | state = NULL; |
| 2218 | if (listitems == Py_None) |
| 2219 | listitems = NULL; |
| 2220 | if (dictitems == Py_None) |
| 2221 | dictitems = NULL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2222 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2223 | /* Protocol 2 special case: if callable's name is __newobj__, use |
| 2224 | * NEWOBJ. This consumes a lot of code. |
| 2225 | */ |
| 2226 | if (use_newobj) { |
| 2227 | PyObject *temp = PyObject_GetAttr(callable, __name___str); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2228 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2229 | if (temp == NULL) { |
| 2230 | PyErr_Clear(); |
| 2231 | use_newobj = 0; |
| 2232 | } |
| 2233 | else { |
| 2234 | use_newobj = PyString_Check(temp) && |
| 2235 | strcmp(PyString_AS_STRING(temp), |
| 2236 | "__newobj__") == 0; |
| 2237 | Py_DECREF(temp); |
| 2238 | } |
| 2239 | } |
| 2240 | if (use_newobj) { |
| 2241 | PyObject *cls; |
| 2242 | PyObject *newargtup; |
| 2243 | int n, i; |
| 2244 | |
| 2245 | /* Sanity checks. */ |
| 2246 | n = PyTuple_Size(argtup); |
| 2247 | if (n < 1) { |
| 2248 | PyErr_SetString(PicklingError, "__newobj__ arglist " |
| 2249 | "is empty"); |
| 2250 | return -1; |
| 2251 | } |
| 2252 | |
| 2253 | cls = PyTuple_GET_ITEM(argtup, 0); |
| 2254 | if (! PyObject_HasAttrString(cls, "__new__")) { |
| 2255 | PyErr_SetString(PicklingError, "args[0] from " |
| 2256 | "__newobj__ args has no __new__"); |
| 2257 | return -1; |
| 2258 | } |
| 2259 | |
| 2260 | /* XXX How could ob be NULL? */ |
| 2261 | if (ob != NULL) { |
| 2262 | PyObject *ob_dot_class; |
| 2263 | |
| 2264 | ob_dot_class = PyObject_GetAttr(ob, __class___str); |
| 2265 | if (ob_dot_class == NULL) |
| 2266 | PyErr_Clear(); |
| 2267 | i = ob_dot_class != cls; /* true iff a problem */ |
| 2268 | Py_XDECREF(ob_dot_class); |
| 2269 | if (i) { |
| 2270 | PyErr_SetString(PicklingError, "args[0] from " |
| 2271 | "__newobj__ args has the wrong class"); |
| 2272 | return -1; |
| 2273 | } |
| 2274 | } |
| 2275 | |
| 2276 | /* Save the class and its __new__ arguments. */ |
| 2277 | if (save(self, cls, 0) < 0) |
| 2278 | return -1; |
| 2279 | |
| 2280 | newargtup = PyTuple_New(n-1); /* argtup[1:] */ |
| 2281 | if (newargtup == NULL) |
| 2282 | return -1; |
| 2283 | for (i = 1; i < n; ++i) { |
| 2284 | PyObject *temp = PyTuple_GET_ITEM(argtup, i); |
| 2285 | Py_INCREF(temp); |
| 2286 | PyTuple_SET_ITEM(newargtup, i-1, temp); |
| 2287 | } |
| 2288 | i = save(self, newargtup, 0) < 0; |
| 2289 | Py_DECREF(newargtup); |
| 2290 | if (i < 0) |
| 2291 | return -1; |
| 2292 | |
| 2293 | /* Add NEWOBJ opcode. */ |
| 2294 | if (self->write_func(self, &newobj, 1) < 0) |
| 2295 | return -1; |
| 2296 | } |
| 2297 | else { |
| 2298 | /* Not using NEWOBJ. */ |
| 2299 | if (save(self, callable, 0) < 0 || |
| 2300 | save(self, argtup, 0) < 0 || |
| 2301 | self->write_func(self, &reduce, 1) < 0) |
| 2302 | return -1; |
| 2303 | } |
| 2304 | |
| 2305 | /* Memoize. */ |
| 2306 | /* XXX How can ob be NULL? */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2307 | if (ob != NULL) { |
| 2308 | if (state && !PyDict_Check(state)) { |
| 2309 | if (put2(self, ob) < 0) |
| 2310 | return -1; |
| 2311 | } |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2312 | else if (put(self, ob) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2313 | return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2314 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 2315 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2316 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2317 | if (listitems && batch_list(self, listitems) < 0) |
| 2318 | return -1; |
| 2319 | |
| 2320 | if (dictitems && batch_dict(self, dictitems) < 0) |
| 2321 | return -1; |
| 2322 | |
| 2323 | if (state) { |
| 2324 | if (save(self, state, 0) < 0 || |
| 2325 | self->write_func(self, &build, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2326 | return -1; |
| 2327 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2328 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2329 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2330 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2331 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2332 | static int |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 2333 | save(Picklerobject *self, PyObject *args, int pers_save) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2334 | { |
| 2335 | PyTypeObject *type; |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2336 | PyObject *py_ob_id = 0, *__reduce__ = 0, *t = 0; |
| 2337 | PyObject *arg_tup; |
| 2338 | int res = -1; |
| 2339 | int tmp, size; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2340 | |
Martin v. Löwis | 5a39530 | 2002-08-04 08:20:23 +0000 | [diff] [blame] | 2341 | if (self->nesting++ > Py_GetRecursionLimit()){ |
| 2342 | PyErr_SetString(PyExc_RuntimeError, |
| 2343 | "maximum recursion depth exceeded"); |
| 2344 | goto finally; |
| 2345 | } |
| 2346 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2347 | if (!pers_save && self->pers_func) { |
| 2348 | if ((tmp = save_pers(self, args, self->pers_func)) != 0) { |
| 2349 | res = tmp; |
| 2350 | goto finally; |
| 2351 | } |
| 2352 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2353 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2354 | if (args == Py_None) { |
| 2355 | res = save_none(self, args); |
| 2356 | goto finally; |
| 2357 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2358 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2359 | type = args->ob_type; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2360 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2361 | switch (type->tp_name[0]) { |
Guido van Rossum | 77f6a65 | 2002-04-03 22:41:51 +0000 | [diff] [blame] | 2362 | case 'b': |
| 2363 | if (args == Py_False || args == Py_True) { |
| 2364 | res = save_bool(self, args); |
| 2365 | goto finally; |
| 2366 | } |
| 2367 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2368 | case 'i': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2369 | if (type == &PyInt_Type) { |
| 2370 | res = save_int(self, args); |
| 2371 | goto finally; |
| 2372 | } |
| 2373 | break; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2374 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2375 | case 'l': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2376 | if (type == &PyLong_Type) { |
| 2377 | res = save_long(self, args); |
| 2378 | goto finally; |
| 2379 | } |
| 2380 | break; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2381 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2382 | case 'f': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2383 | if (type == &PyFloat_Type) { |
| 2384 | res = save_float(self, args); |
| 2385 | goto finally; |
| 2386 | } |
| 2387 | break; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2388 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2389 | case 't': |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 2390 | if (type == &PyTuple_Type && PyTuple_Size(args) == 0) { |
| 2391 | res = save_tuple(self, args); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2392 | goto finally; |
| 2393 | } |
| 2394 | break; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2395 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2396 | case 's': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2397 | if ((type == &PyString_Type) && (PyString_GET_SIZE(args) < 2)) { |
| 2398 | res = save_string(self, args, 0); |
| 2399 | goto finally; |
| 2400 | } |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 2401 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 2402 | #ifdef Py_USING_UNICODE |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 2403 | case 'u': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2404 | if ((type == &PyUnicode_Type) && (PyString_GET_SIZE(args) < 2)) { |
| 2405 | res = save_unicode(self, args, 0); |
| 2406 | goto finally; |
| 2407 | } |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 2408 | #endif |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2409 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2410 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2411 | if (args->ob_refcnt > 1) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2412 | if (!( py_ob_id = PyLong_FromVoidPtr(args))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2413 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2414 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2415 | if (PyDict_GetItem(self->memo, py_ob_id)) { |
| 2416 | if (get(self, py_ob_id) < 0) |
| 2417 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2418 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2419 | res = 0; |
| 2420 | goto finally; |
| 2421 | } |
| 2422 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2423 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2424 | switch (type->tp_name[0]) { |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2425 | case 's': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2426 | if (type == &PyString_Type) { |
| 2427 | res = save_string(self, args, 1); |
| 2428 | goto finally; |
| 2429 | } |
| 2430 | break; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2431 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 2432 | #ifdef Py_USING_UNICODE |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 2433 | case 'u': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2434 | if (type == &PyUnicode_Type) { |
| 2435 | res = save_unicode(self, args, 1); |
| 2436 | goto finally; |
| 2437 | } |
| 2438 | break; |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 2439 | #endif |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 2440 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2441 | case 't': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2442 | if (type == &PyTuple_Type) { |
| 2443 | res = save_tuple(self, args); |
| 2444 | goto finally; |
| 2445 | } |
| 2446 | if (type == &PyType_Type) { |
| 2447 | res = save_global(self, args, NULL); |
| 2448 | goto finally; |
| 2449 | } |
| 2450 | break; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2451 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2452 | case 'l': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2453 | if (type == &PyList_Type) { |
| 2454 | res = save_list(self, args); |
| 2455 | goto finally; |
| 2456 | } |
| 2457 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2458 | |
| 2459 | case 'd': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2460 | if (type == &PyDict_Type) { |
| 2461 | res = save_dict(self, args); |
| 2462 | goto finally; |
| 2463 | } |
| 2464 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2465 | |
| 2466 | case 'i': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2467 | if (type == &PyInstance_Type) { |
| 2468 | res = save_inst(self, args); |
| 2469 | goto finally; |
| 2470 | } |
| 2471 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2472 | |
| 2473 | case 'c': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2474 | if (type == &PyClass_Type) { |
| 2475 | res = save_global(self, args, NULL); |
| 2476 | goto finally; |
| 2477 | } |
| 2478 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2479 | |
| 2480 | case 'f': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2481 | if (type == &PyFunction_Type) { |
| 2482 | res = save_global(self, args, NULL); |
| 2483 | goto finally; |
| 2484 | } |
| 2485 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2486 | |
| 2487 | case 'b': |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2488 | if (type == &PyCFunction_Type) { |
| 2489 | res = save_global(self, args, NULL); |
| 2490 | goto finally; |
| 2491 | } |
| 2492 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2493 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2494 | if (!pers_save && self->inst_pers_func) { |
| 2495 | if ((tmp = save_pers(self, args, self->inst_pers_func)) != 0) { |
| 2496 | res = tmp; |
| 2497 | goto finally; |
| 2498 | } |
| 2499 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2500 | |
Jeremy Hylton | 39c6116 | 2002-07-16 19:47:43 +0000 | [diff] [blame] | 2501 | if (PyType_IsSubtype(type, &PyType_Type)) { |
| 2502 | res = save_global(self, args, NULL); |
| 2503 | goto finally; |
| 2504 | } |
| 2505 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2506 | /* Get a reduction callable. This may come from |
| 2507 | * copy_reg.dispatch_table, the object's __reduce__ method, |
| 2508 | * the default object.__reduce__, or copy_reg._better_reduce. |
| 2509 | */ |
Tim Peters | 5aa3da6 | 2003-02-13 21:03:57 +0000 | [diff] [blame] | 2510 | __reduce__ = PyDict_GetItem(dispatch_table, (PyObject *)type); |
| 2511 | if (__reduce__ != NULL) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2512 | Py_INCREF(__reduce__); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2513 | } |
| 2514 | else { |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2515 | /* Check for a __reduce__ method. |
| 2516 | * Subtle: get the unbound method from the class, so that |
| 2517 | * protocol 2 can override the default __reduce__ that all |
| 2518 | * classes inherit from object. |
| 2519 | * XXX object.__reduce__ should really be rewritten so that |
| 2520 | * XXX we don't need to call back into Python code here |
| 2521 | * XXX (better_reduce), but no time to do that. |
| 2522 | */ |
| 2523 | __reduce__ = PyObject_GetAttr((PyObject *)type, |
| 2524 | __reduce___str); |
| 2525 | if (__reduce__ == NULL) { |
Tim Peters | 5aa3da6 | 2003-02-13 21:03:57 +0000 | [diff] [blame] | 2526 | PyErr_Clear(); |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2527 | PyErr_SetObject(UnpickleableError, args); |
| 2528 | goto finally; |
| 2529 | } |
| 2530 | |
| 2531 | if (self->proto >= 2 && __reduce__ == object_reduce) { |
| 2532 | /* Proto 2 can do better than the default. */ |
| 2533 | Py_DECREF(__reduce__); |
| 2534 | Py_INCREF(better_reduce); |
| 2535 | __reduce__ = better_reduce; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2536 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2537 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2538 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2539 | /* Call the reduction callable, setting t to the result. */ |
| 2540 | assert(__reduce__ != NULL); |
| 2541 | assert(t == NULL); |
| 2542 | Py_INCREF(args); |
| 2543 | ARG_TUP(self, args); |
| 2544 | if (self->arg) { |
| 2545 | t = PyObject_Call(__reduce__, self->arg, NULL); |
| 2546 | FREE_ARG_TUP(self); |
| 2547 | } |
| 2548 | if (t == NULL) |
| 2549 | goto finally; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 2550 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2551 | if (PyString_Check(t)) { |
| 2552 | res = save_global(self, args, t); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2553 | goto finally; |
| 2554 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2555 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 2556 | if (! PyTuple_Check(t)) { |
| 2557 | cPickle_ErrFormat(PicklingError, "Value returned by " |
| 2558 | "%s must be string or tuple", |
| 2559 | "O", __reduce__); |
| 2560 | goto finally; |
| 2561 | } |
| 2562 | |
| 2563 | size = PyTuple_Size(t); |
| 2564 | if (size < 2 || size > 5) { |
| 2565 | cPickle_ErrFormat(PicklingError, "tuple returned by " |
| 2566 | "%s must contain 2 through 5 elements", |
| 2567 | "O", __reduce__); |
| 2568 | goto finally; |
| 2569 | } |
| 2570 | |
| 2571 | arg_tup = PyTuple_GET_ITEM(t, 1); |
| 2572 | if (!(PyTuple_Check(arg_tup) || arg_tup == Py_None)) { |
| 2573 | cPickle_ErrFormat(PicklingError, "Second element of " |
| 2574 | "tuple returned by %s must be a tuple", |
| 2575 | "O", __reduce__); |
| 2576 | goto finally; |
| 2577 | } |
| 2578 | |
| 2579 | res = save_reduce(self, t, args); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2580 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2581 | finally: |
Martin v. Löwis | 5a39530 | 2002-08-04 08:20:23 +0000 | [diff] [blame] | 2582 | self->nesting--; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2583 | Py_XDECREF(py_ob_id); |
| 2584 | Py_XDECREF(__reduce__); |
| 2585 | Py_XDECREF(t); |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 2586 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2587 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2588 | } |
| 2589 | |
| 2590 | |
| 2591 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2592 | dump(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2593 | { |
| 2594 | static char stop = STOP; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2595 | |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 2596 | if (self->proto >= 2) { |
| 2597 | char bytes[2]; |
| 2598 | |
| 2599 | bytes[0] = PROTO; |
Tim Peters | 87482ea | 2003-02-02 16:16:30 +0000 | [diff] [blame] | 2600 | assert(self->proto >= 0 && self->proto < 256); |
| 2601 | bytes[1] = (char)self->proto; |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 2602 | if (self->write_func(self, bytes, 2) < 0) |
| 2603 | return -1; |
| 2604 | } |
| 2605 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2606 | if (save(self, args, 0) < 0) |
| 2607 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2608 | |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 2609 | if (self->write_func(self, &stop, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2610 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2611 | |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 2612 | if (self->write_func(self, NULL, 0) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2613 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2614 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2615 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2616 | } |
| 2617 | |
| 2618 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2619 | Pickle_clear_memo(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2620 | { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2621 | if (self->memo) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2622 | PyDict_Clear(self->memo); |
| 2623 | Py_INCREF(Py_None); |
| 2624 | return Py_None; |
| 2625 | } |
| 2626 | |
| 2627 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2628 | Pickle_getvalue(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2629 | { |
| 2630 | int l, i, rsize, ssize, clear=1, lm; |
| 2631 | long ik; |
| 2632 | PyObject *k, *r; |
| 2633 | char *s, *p, *have_get; |
| 2634 | Pdata *data; |
| 2635 | |
| 2636 | /* Can be called by Python code or C code */ |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2637 | if (args && !PyArg_ParseTuple(args, "|i:getvalue", &clear)) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2638 | return NULL; |
| 2639 | |
| 2640 | /* Check to make sure we are based on a list */ |
| 2641 | if (! Pdata_Check(self->file)) { |
| 2642 | PyErr_SetString(PicklingError, |
| 2643 | "Attempt to getvalue() a non-list-based pickler"); |
| 2644 | return NULL; |
| 2645 | } |
| 2646 | |
| 2647 | /* flush write buffer */ |
| 2648 | if (write_other(self, NULL, 0) < 0) return NULL; |
| 2649 | |
| 2650 | data=(Pdata*)self->file; |
| 2651 | l=data->length; |
| 2652 | |
| 2653 | /* set up an array to hold get/put status */ |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2654 | lm = PyDict_Size(self->memo); |
| 2655 | if (lm < 0) return NULL; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2656 | lm++; |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2657 | have_get = malloc(lm); |
| 2658 | if (have_get == NULL) return PyErr_NoMemory(); |
| 2659 | memset(have_get, 0, lm); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2660 | |
| 2661 | /* Scan for gets. */ |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2662 | for (rsize = 0, i = l; --i >= 0; ) { |
| 2663 | k = data->data[i]; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2664 | |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2665 | if (PyString_Check(k)) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2666 | rsize += PyString_GET_SIZE(k); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2667 | |
| 2668 | else if (PyInt_Check(k)) { /* put */ |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2669 | ik = PyInt_AS_LONG((PyIntObject*)k); |
| 2670 | if (ik >= lm || ik == 0) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2671 | PyErr_SetString(PicklingError, |
| 2672 | "Invalid get data"); |
| 2673 | return NULL; |
| 2674 | } |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2675 | if (have_get[ik]) /* with matching get */ |
| 2676 | rsize += ik < 256 ? 2 : 5; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2677 | } |
| 2678 | |
| 2679 | else if (! (PyTuple_Check(k) && |
| 2680 | PyTuple_GET_SIZE(k) == 2 && |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2681 | PyInt_Check((k = PyTuple_GET_ITEM(k, 0)))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2682 | ) { |
| 2683 | PyErr_SetString(PicklingError, |
| 2684 | "Unexpected data in internal list"); |
| 2685 | return NULL; |
| 2686 | } |
| 2687 | |
| 2688 | else { /* put */ |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2689 | ik = PyInt_AS_LONG((PyIntObject *)k); |
| 2690 | if (ik >= lm || ik == 0) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2691 | PyErr_SetString(PicklingError, |
| 2692 | "Invalid get data"); |
| 2693 | return NULL; |
| 2694 | } |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2695 | have_get[ik] = 1; |
| 2696 | rsize += ik < 256 ? 2 : 5; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2697 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2698 | } |
| 2699 | |
| 2700 | /* Now generate the result */ |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2701 | r = PyString_FromStringAndSize(NULL, rsize); |
| 2702 | if (r == NULL) goto err; |
| 2703 | s = PyString_AS_STRING((PyStringObject *)r); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2704 | |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2705 | for (i = 0; i < l; i++) { |
| 2706 | k = data->data[i]; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2707 | |
| 2708 | if (PyString_Check(k)) { |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2709 | ssize = PyString_GET_SIZE(k); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2710 | if (ssize) { |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2711 | p=PyString_AS_STRING((PyStringObject *)k); |
| 2712 | while (--ssize >= 0) |
| 2713 | *s++ = *p++; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2714 | } |
| 2715 | } |
| 2716 | |
| 2717 | else if (PyTuple_Check(k)) { /* get */ |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2718 | ik = PyInt_AS_LONG((PyIntObject *) |
| 2719 | PyTuple_GET_ITEM(k, 0)); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2720 | if (ik < 256) { |
| 2721 | *s++ = BINGET; |
| 2722 | *s++ = (int)(ik & 0xff); |
| 2723 | } |
| 2724 | else { |
| 2725 | *s++ = LONG_BINGET; |
| 2726 | *s++ = (int)(ik & 0xff); |
| 2727 | *s++ = (int)((ik >> 8) & 0xff); |
| 2728 | *s++ = (int)((ik >> 16) & 0xff); |
| 2729 | *s++ = (int)((ik >> 24) & 0xff); |
| 2730 | } |
| 2731 | } |
| 2732 | |
| 2733 | else { /* put */ |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2734 | ik = PyInt_AS_LONG((PyIntObject*)k); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2735 | |
| 2736 | if (have_get[ik]) { /* with matching get */ |
| 2737 | if (ik < 256) { |
| 2738 | *s++ = BINPUT; |
| 2739 | *s++ = (int)(ik & 0xff); |
| 2740 | } |
| 2741 | else { |
| 2742 | *s++ = LONG_BINPUT; |
| 2743 | *s++ = (int)(ik & 0xff); |
| 2744 | *s++ = (int)((ik >> 8) & 0xff); |
| 2745 | *s++ = (int)((ik >> 16) & 0xff); |
| 2746 | *s++ = (int)((ik >> 24) & 0xff); |
| 2747 | } |
| 2748 | } |
| 2749 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2750 | } |
| 2751 | |
| 2752 | if (clear) { |
| 2753 | PyDict_Clear(self->memo); |
Tim Peters | ac5687a | 2003-02-02 18:08:34 +0000 | [diff] [blame] | 2754 | Pdata_clear(data, 0); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2755 | } |
| 2756 | |
| 2757 | free(have_get); |
| 2758 | return r; |
| 2759 | err: |
| 2760 | free(have_get); |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 2761 | return NULL; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 2762 | } |
| 2763 | |
| 2764 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2765 | Pickler_dump(Picklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2766 | { |
| 2767 | PyObject *ob; |
| 2768 | int get=0; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 2769 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2770 | if (!( PyArg_ParseTuple(args, "O|i:dump", &ob, &get))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2771 | return NULL; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 2772 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2773 | if (dump(self, ob) < 0) |
| 2774 | return NULL; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 2775 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2776 | if (get) return Pickle_getvalue(self, NULL); |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 2777 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2778 | /* XXX Why does dump() return self? */ |
| 2779 | Py_INCREF(self); |
| 2780 | return (PyObject*)self; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2781 | } |
| 2782 | |
| 2783 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2784 | static struct PyMethodDef Pickler_methods[] = |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2785 | { |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 2786 | {"dump", (PyCFunction)Pickler_dump, METH_VARARGS, |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 2787 | PyDoc_STR("dump(object) -- " |
| 2788 | "Write an object in pickle format to the object's pickle stream")}, |
Fred Drake | 0ebacc8 | 2002-05-01 20:36:39 +0000 | [diff] [blame] | 2789 | {"clear_memo", (PyCFunction)Pickle_clear_memo, METH_NOARGS, |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 2790 | PyDoc_STR("clear_memo() -- Clear the picklers memo")}, |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 2791 | {"getvalue", (PyCFunction)Pickle_getvalue, METH_VARARGS, |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 2792 | PyDoc_STR("getvalue() -- Finish picking a list-based pickle")}, |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 2793 | {NULL, NULL} /* sentinel */ |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2794 | }; |
| 2795 | |
| 2796 | |
| 2797 | static Picklerobject * |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2798 | newPicklerobject(PyObject *file, int proto) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2799 | { |
| 2800 | Picklerobject *self; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2801 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2802 | if (proto < 0) |
Tim Peters | 8587b3c | 2003-02-13 15:44:41 +0000 | [diff] [blame] | 2803 | proto = HIGHEST_PROTOCOL; |
| 2804 | if (proto > HIGHEST_PROTOCOL) { |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2805 | PyErr_Format(PyExc_ValueError, "pickle protocol %d asked for; " |
| 2806 | "the highest available protocol is %d", |
Tim Peters | 8587b3c | 2003-02-13 15:44:41 +0000 | [diff] [blame] | 2807 | proto, HIGHEST_PROTOCOL); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2808 | return NULL; |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2809 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2810 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2811 | self = PyObject_New(Picklerobject, &Picklertype); |
| 2812 | if (self == NULL) |
| 2813 | return NULL; |
| 2814 | self->proto = proto; |
| 2815 | self->bin = proto > 0; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2816 | self->fp = NULL; |
| 2817 | self->write = NULL; |
| 2818 | self->memo = NULL; |
| 2819 | self->arg = NULL; |
| 2820 | self->pers_func = NULL; |
| 2821 | self->inst_pers_func = NULL; |
| 2822 | self->write_buf = NULL; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2823 | self->fast = 0; |
Martin v. Löwis | 5a39530 | 2002-08-04 08:20:23 +0000 | [diff] [blame] | 2824 | self->nesting = 0; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2825 | self->fast_container = 0; |
| 2826 | self->fast_memo = NULL; |
| 2827 | self->buf_size = 0; |
| 2828 | self->dispatch_table = NULL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2829 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2830 | self->file = NULL; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2831 | if (file) |
| 2832 | Py_INCREF(file); |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2833 | else { |
| 2834 | file = Pdata_New(); |
| 2835 | if (file == NULL) |
| 2836 | goto err; |
| 2837 | } |
| 2838 | self->file = file; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 2839 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2840 | if (!( self->memo = PyDict_New())) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2841 | goto err; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2842 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2843 | if (PyFile_Check(file)) { |
| 2844 | self->fp = PyFile_AsFile(file); |
| 2845 | if (self->fp == NULL) { |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2846 | PyErr_SetString(PyExc_ValueError, |
| 2847 | "I/O operation on closed file"); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2848 | goto err; |
| 2849 | } |
| 2850 | self->write_func = write_file; |
Guido van Rossum | c91fcaa | 1999-03-29 20:00:14 +0000 | [diff] [blame] | 2851 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2852 | else if (PycStringIO_OutputCheck(file)) { |
| 2853 | self->write_func = write_cStringIO; |
| 2854 | } |
| 2855 | else if (file == Py_None) { |
| 2856 | self->write_func = write_none; |
| 2857 | } |
| 2858 | else { |
| 2859 | self->write_func = write_other; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2860 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2861 | if (! Pdata_Check(file)) { |
| 2862 | self->write = PyObject_GetAttr(file, write_str); |
| 2863 | if (!self->write) { |
| 2864 | PyErr_Clear(); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2865 | PyErr_SetString(PyExc_TypeError, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2866 | "argument must have 'write' " |
| 2867 | "attribute"); |
| 2868 | goto err; |
| 2869 | } |
| 2870 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2871 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2872 | self->write_buf = (char *)PyMem_Malloc(WRITE_BUF_SIZE); |
| 2873 | if (self->write_buf == NULL) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2874 | PyErr_NoMemory(); |
| 2875 | goto err; |
| 2876 | } |
| 2877 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2878 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2879 | if (PyEval_GetRestricted()) { |
| 2880 | /* Restricted execution, get private tables */ |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 2881 | PyObject *m = PyImport_Import(copy_reg_str); |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 2882 | |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 2883 | if (m == NULL) |
| 2884 | goto err; |
| 2885 | self->dispatch_table = PyObject_GetAttr(m, dispatch_table_str); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2886 | Py_DECREF(m); |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 2887 | if (self->dispatch_table == NULL) |
| 2888 | goto err; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2889 | } |
| 2890 | else { |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 2891 | self->dispatch_table = dispatch_table; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2892 | Py_INCREF(dispatch_table); |
| 2893 | } |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 2894 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2895 | return self; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 2896 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2897 | err: |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2898 | Py_DECREF(self); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2899 | return NULL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2900 | } |
| 2901 | |
| 2902 | |
| 2903 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2904 | get_Pickler(PyObject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2905 | { |
| 2906 | PyObject *file = NULL; |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2907 | int proto = 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2908 | |
Tim Peters | 92c8bb3 | 2003-02-13 23:00:26 +0000 | [diff] [blame] | 2909 | /* XXX |
| 2910 | * The documented signature is Pickler(file, proto=0), but this |
| 2911 | * accepts Pickler() and Pickler(integer) too. The meaning then |
| 2912 | * is clear as mud, undocumented, and not supported by pickle.py. |
| 2913 | * I'm told Zope uses this, but I haven't traced into this code |
| 2914 | * far enough to figure out what it means. |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2915 | */ |
| 2916 | if (!PyArg_ParseTuple(args, "|i:Pickler", &proto)) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2917 | PyErr_Clear(); |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2918 | proto = 0; |
| 2919 | if (!PyArg_ParseTuple(args, "O|i:Pickler", &file, &proto)) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2920 | return NULL; |
| 2921 | } |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2922 | return (PyObject *)newPicklerobject(file, proto); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2923 | } |
| 2924 | |
| 2925 | |
| 2926 | static void |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 2927 | Pickler_dealloc(Picklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2928 | { |
| 2929 | Py_XDECREF(self->write); |
| 2930 | Py_XDECREF(self->memo); |
| 2931 | Py_XDECREF(self->fast_memo); |
| 2932 | Py_XDECREF(self->arg); |
| 2933 | Py_XDECREF(self->file); |
| 2934 | Py_XDECREF(self->pers_func); |
| 2935 | Py_XDECREF(self->inst_pers_func); |
| 2936 | Py_XDECREF(self->dispatch_table); |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 2937 | PyMem_Free(self->write_buf); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2938 | PyObject_Del(self); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2939 | } |
| 2940 | |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2941 | static PyObject * |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 2942 | Pickler_get_pers_func(Picklerobject *p) |
| 2943 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2944 | if (p->pers_func == NULL) |
| 2945 | PyErr_SetString(PyExc_AttributeError, "persistent_id"); |
| 2946 | else |
| 2947 | Py_INCREF(p->pers_func); |
| 2948 | return p->pers_func; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2949 | } |
| 2950 | |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 2951 | static int |
| 2952 | Pickler_set_pers_func(Picklerobject *p, PyObject *v) |
| 2953 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2954 | if (v == NULL) { |
| 2955 | PyErr_SetString(PyExc_TypeError, |
| 2956 | "attribute deletion is not supported"); |
| 2957 | return -1; |
| 2958 | } |
| 2959 | Py_XDECREF(p->pers_func); |
| 2960 | Py_INCREF(v); |
| 2961 | p->pers_func = v; |
| 2962 | return 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 2963 | } |
| 2964 | |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 2965 | static int |
| 2966 | Pickler_set_inst_pers_func(Picklerobject *p, PyObject *v) |
| 2967 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2968 | if (v == NULL) { |
| 2969 | PyErr_SetString(PyExc_TypeError, |
| 2970 | "attribute deletion is not supported"); |
| 2971 | return -1; |
| 2972 | } |
| 2973 | Py_XDECREF(p->inst_pers_func); |
| 2974 | Py_INCREF(v); |
| 2975 | p->inst_pers_func = v; |
| 2976 | return 0; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 2977 | } |
| 2978 | |
| 2979 | static PyObject * |
| 2980 | Pickler_get_memo(Picklerobject *p) |
| 2981 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2982 | if (p->memo == NULL) |
| 2983 | PyErr_SetString(PyExc_AttributeError, "memo"); |
| 2984 | else |
| 2985 | Py_INCREF(p->memo); |
| 2986 | return p->memo; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 2987 | } |
| 2988 | |
| 2989 | static int |
| 2990 | Pickler_set_memo(Picklerobject *p, PyObject *v) |
| 2991 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 2992 | if (v == NULL) { |
| 2993 | PyErr_SetString(PyExc_TypeError, |
| 2994 | "attribute deletion is not supported"); |
| 2995 | return -1; |
| 2996 | } |
| 2997 | if (!PyDict_Check(v)) { |
| 2998 | PyErr_SetString(PyExc_TypeError, "memo must be a dictionary"); |
| 2999 | return -1; |
| 3000 | } |
| 3001 | Py_XDECREF(p->memo); |
| 3002 | Py_INCREF(v); |
| 3003 | p->memo = v; |
| 3004 | return 0; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3005 | } |
| 3006 | |
| 3007 | static PyObject * |
| 3008 | Pickler_get_error(Picklerobject *p) |
| 3009 | { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3010 | /* why is this an attribute on the Pickler? */ |
| 3011 | Py_INCREF(PicklingError); |
| 3012 | return PicklingError; |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3013 | } |
| 3014 | |
| 3015 | static PyMemberDef Pickler_members[] = { |
| 3016 | {"binary", T_INT, offsetof(Picklerobject, bin)}, |
| 3017 | {"fast", T_INT, offsetof(Picklerobject, fast)}, |
Jeremy Hylton | 3eb46f3 | 2001-10-16 17:10:49 +0000 | [diff] [blame] | 3018 | {NULL} |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3019 | }; |
| 3020 | |
| 3021 | static PyGetSetDef Pickler_getsets[] = { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3022 | {"persistent_id", (getter)Pickler_get_pers_func, |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3023 | (setter)Pickler_set_pers_func}, |
| 3024 | {"inst_persistent_id", NULL, (setter)Pickler_set_inst_pers_func}, |
| 3025 | {"memo", (getter)Pickler_get_memo, (setter)Pickler_set_memo}, |
Jeremy Hylton | 3eb46f3 | 2001-10-16 17:10:49 +0000 | [diff] [blame] | 3026 | {"PicklingError", (getter)Pickler_get_error, NULL}, |
| 3027 | {NULL} |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3028 | }; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 3029 | |
Martin v. Löwis | 14f8b4c | 2002-06-13 20:33:02 +0000 | [diff] [blame] | 3030 | PyDoc_STRVAR(Picklertype__doc__, |
| 3031 | "Objects that know how to pickle objects\n"); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 3032 | |
Guido van Rossum | 9716aaa | 1997-12-08 15:15:16 +0000 | [diff] [blame] | 3033 | static PyTypeObject Picklertype = { |
| 3034 | PyObject_HEAD_INIT(NULL) |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3035 | 0, /*ob_size*/ |
Guido van Rossum | 1464839 | 2001-12-08 18:02:58 +0000 | [diff] [blame] | 3036 | "cPickle.Pickler", /*tp_name*/ |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3037 | sizeof(Picklerobject), /*tp_basicsize*/ |
| 3038 | 0, |
| 3039 | (destructor)Pickler_dealloc, /* tp_dealloc */ |
| 3040 | 0, /* tp_print */ |
| 3041 | 0, /* tp_getattr */ |
| 3042 | 0, /* tp_setattr */ |
| 3043 | 0, /* tp_compare */ |
| 3044 | 0, /* tp_repr */ |
| 3045 | 0, /* tp_as_number */ |
| 3046 | 0, /* tp_as_sequence */ |
| 3047 | 0, /* tp_as_mapping */ |
| 3048 | 0, /* tp_hash */ |
| 3049 | 0, /* tp_call */ |
| 3050 | 0, /* tp_str */ |
Jason Tishler | fb8595d | 2003-01-06 12:41:26 +0000 | [diff] [blame] | 3051 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 3052 | PyObject_GenericSetAttr, /* tp_setattro */ |
Jeremy Hylton | a0fb177 | 2001-10-12 04:11:06 +0000 | [diff] [blame] | 3053 | 0, /* tp_as_buffer */ |
| 3054 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| 3055 | Picklertype__doc__, /* tp_doc */ |
| 3056 | 0, /* tp_traverse */ |
| 3057 | 0, /* tp_clear */ |
| 3058 | 0, /* tp_richcompare */ |
| 3059 | 0, /* tp_weaklistoffset */ |
| 3060 | 0, /* tp_iter */ |
| 3061 | 0, /* tp_iternext */ |
| 3062 | Pickler_methods, /* tp_methods */ |
| 3063 | Pickler_members, /* tp_members */ |
| 3064 | Pickler_getsets, /* tp_getset */ |
Guido van Rossum | 9716aaa | 1997-12-08 15:15:16 +0000 | [diff] [blame] | 3065 | }; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 3066 | |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 3067 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3068 | find_class(PyObject *py_module_name, PyObject *py_global_name, PyObject *fc) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3069 | { |
| 3070 | PyObject *global = 0, *module; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 3071 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3072 | if (fc) { |
| 3073 | if (fc==Py_None) { |
Tim Peters | 92c8bb3 | 2003-02-13 23:00:26 +0000 | [diff] [blame] | 3074 | PyErr_SetString(UnpicklingError, "Global and instance " |
| 3075 | "pickles are not supported."); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3076 | return NULL; |
| 3077 | } |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3078 | return PyObject_CallFunction(fc, "OO", py_module_name, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3079 | py_global_name); |
| 3080 | } |
Guido van Rossum | 1b9e0aa | 1999-04-19 17:58:18 +0000 | [diff] [blame] | 3081 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3082 | module = PySys_GetObject("modules"); |
| 3083 | if (module == NULL) |
| 3084 | return NULL; |
Jeremy Hylton | d105523 | 1998-08-11 19:52:51 +0000 | [diff] [blame] | 3085 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3086 | module = PyDict_GetItem(module, py_module_name); |
| 3087 | if (module == NULL) { |
| 3088 | module = PyImport_Import(py_module_name); |
| 3089 | if (!module) |
| 3090 | return NULL; |
| 3091 | global = PyObject_GetAttr(module, py_global_name); |
| 3092 | Py_DECREF(module); |
| 3093 | } |
| 3094 | else |
| 3095 | global = PyObject_GetAttr(module, py_global_name); |
| 3096 | return global; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 3097 | } |
| 3098 | |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 3099 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3100 | marker(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3101 | { |
| 3102 | if (self->num_marks < 1) { |
| 3103 | PyErr_SetString(UnpicklingError, "could not find MARK"); |
| 3104 | return -1; |
| 3105 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3106 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3107 | return self->marks[--self->num_marks]; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3108 | } |
| 3109 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3110 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3111 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3112 | load_none(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3113 | { |
| 3114 | PDATA_APPEND(self->stack, Py_None, -1); |
| 3115 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3116 | } |
| 3117 | |
Guido van Rossum | f9ffb03 | 1999-02-04 14:54:04 +0000 | [diff] [blame] | 3118 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3119 | bad_readline(void) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3120 | { |
| 3121 | PyErr_SetString(UnpicklingError, "pickle data was truncated"); |
| 3122 | return -1; |
Guido van Rossum | f9ffb03 | 1999-02-04 14:54:04 +0000 | [diff] [blame] | 3123 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3124 | |
| 3125 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3126 | load_int(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3127 | { |
| 3128 | PyObject *py_int = 0; |
| 3129 | char *endptr, *s; |
| 3130 | int len, res = -1; |
| 3131 | long l; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3132 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3133 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3134 | if (len < 2) return bad_readline(); |
| 3135 | if (!( s=pystrndup(s,len))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3136 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3137 | errno = 0; |
| 3138 | l = strtol(s, &endptr, 0); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3139 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3140 | if (errno || (*endptr != '\n') || (endptr[1] != '\0')) { |
| 3141 | /* Hm, maybe we've got something long. Let's try reading |
| 3142 | it as a Python long object. */ |
| 3143 | errno = 0; |
| 3144 | py_int = PyLong_FromString(s, NULL, 0); |
| 3145 | if (py_int == NULL) { |
| 3146 | PyErr_SetString(PyExc_ValueError, |
| 3147 | "could not convert string to int"); |
| 3148 | goto finally; |
| 3149 | } |
| 3150 | } |
| 3151 | else { |
Guido van Rossum | e276339 | 2002-04-05 19:30:08 +0000 | [diff] [blame] | 3152 | if (len == 3 && (l == 0 || l == 1)) { |
| 3153 | if (!( py_int = PyBool_FromLong(l))) goto finally; |
| 3154 | } |
| 3155 | else { |
| 3156 | if (!( py_int = PyInt_FromLong(l))) goto finally; |
| 3157 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3158 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3159 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3160 | free(s); |
| 3161 | PDATA_PUSH(self->stack, py_int, -1); |
| 3162 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3163 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3164 | finally: |
| 3165 | free(s); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3166 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3167 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3168 | } |
| 3169 | |
Tim Peters | 3c67d79 | 2003-02-02 17:59:11 +0000 | [diff] [blame] | 3170 | static int |
| 3171 | load_bool(Unpicklerobject *self, PyObject *boolean) |
| 3172 | { |
| 3173 | assert(boolean == Py_True || boolean == Py_False); |
Tim Peters | e0a3907 | 2003-02-03 15:45:56 +0000 | [diff] [blame] | 3174 | PDATA_APPEND(self->stack, boolean, -1); |
Tim Peters | 3c67d79 | 2003-02-02 17:59:11 +0000 | [diff] [blame] | 3175 | return 0; |
| 3176 | } |
| 3177 | |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 3178 | /* s contains x bytes of a little-endian integer. Return its value as a |
| 3179 | * C int. Obscure: when x is 1 or 2, this is an unsigned little-endian |
| 3180 | * int, but when x is 4 it's a signed one. This is an historical source |
| 3181 | * of x-platform bugs. |
| 3182 | */ |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3183 | static long |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 3184 | calc_binint(char *s, int x) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3185 | { |
| 3186 | unsigned char c; |
| 3187 | int i; |
| 3188 | long l; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3189 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3190 | for (i = 0, l = 0L; i < x; i++) { |
| 3191 | c = (unsigned char)s[i]; |
| 3192 | l |= (long)c << (i * 8); |
| 3193 | } |
Tim Peters | bfa18f7 | 2001-04-10 01:54:42 +0000 | [diff] [blame] | 3194 | #if SIZEOF_LONG > 4 |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3195 | /* Unlike BININT1 and BININT2, BININT (more accurately BININT4) |
| 3196 | * is signed, so on a box with longs bigger than 4 bytes we need |
| 3197 | * to extend a BININT's sign bit to the full width. |
| 3198 | */ |
| 3199 | if (x == 4 && l & (1L << 31)) |
| 3200 | l |= (~0L) << 32; |
Tim Peters | bfa18f7 | 2001-04-10 01:54:42 +0000 | [diff] [blame] | 3201 | #endif |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3202 | return l; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3203 | } |
| 3204 | |
| 3205 | |
| 3206 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3207 | load_binintx(Unpicklerobject *self, char *s, int x) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3208 | { |
| 3209 | PyObject *py_int = 0; |
| 3210 | long l; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3211 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3212 | l = calc_binint(s, x); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3213 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3214 | if (!( py_int = PyInt_FromLong(l))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3215 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3216 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3217 | PDATA_PUSH(self->stack, py_int, -1); |
| 3218 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3219 | } |
| 3220 | |
| 3221 | |
| 3222 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3223 | load_binint(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3224 | { |
| 3225 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3226 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3227 | if (self->read_func(self, &s, 4) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3228 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3229 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3230 | return load_binintx(self, s, 4); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3231 | } |
| 3232 | |
| 3233 | |
| 3234 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3235 | load_binint1(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3236 | { |
| 3237 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3238 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3239 | if (self->read_func(self, &s, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3240 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3241 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3242 | return load_binintx(self, s, 1); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3243 | } |
| 3244 | |
| 3245 | |
| 3246 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3247 | load_binint2(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3248 | { |
| 3249 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3250 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3251 | if (self->read_func(self, &s, 2) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3252 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3253 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3254 | return load_binintx(self, s, 2); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3255 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3256 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3257 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3258 | load_long(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3259 | { |
| 3260 | PyObject *l = 0; |
| 3261 | char *end, *s; |
| 3262 | int len, res = -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3263 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3264 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3265 | if (len < 2) return bad_readline(); |
| 3266 | if (!( s=pystrndup(s,len))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3267 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3268 | if (!( l = PyLong_FromString(s, &end, 0))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3269 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3270 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3271 | free(s); |
| 3272 | PDATA_PUSH(self->stack, l, -1); |
| 3273 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3274 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3275 | finally: |
| 3276 | free(s); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3277 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3278 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3279 | } |
| 3280 | |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 3281 | /* 'size' bytes contain the # of bytes of little-endian 256's-complement |
| 3282 | * data following. |
| 3283 | */ |
| 3284 | static int |
| 3285 | load_counted_long(Unpicklerobject *self, int size) |
| 3286 | { |
| 3287 | int i; |
| 3288 | char *nbytes; |
| 3289 | unsigned char *pdata; |
| 3290 | PyObject *along; |
| 3291 | |
| 3292 | assert(size == 1 || size == 4); |
| 3293 | i = self->read_func(self, &nbytes, size); |
| 3294 | if (i < 0) return -1; |
| 3295 | |
| 3296 | size = calc_binint(nbytes, size); |
| 3297 | if (size < 0) { |
| 3298 | /* Corrupt or hostile pickle -- we never write one like |
| 3299 | * this. |
| 3300 | */ |
Tim Peters | 0c7c48e | 2003-02-03 22:07:24 +0000 | [diff] [blame] | 3301 | PyErr_SetString(UnpicklingError, "LONG pickle has negative " |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 3302 | "byte count"); |
| 3303 | return -1; |
| 3304 | } |
| 3305 | |
| 3306 | if (size == 0) |
| 3307 | along = PyLong_FromLong(0L); |
| 3308 | else { |
| 3309 | /* Read the raw little-endian bytes & convert. */ |
Neal Norwitz | 529baf2 | 2003-02-02 17:08:33 +0000 | [diff] [blame] | 3310 | i = self->read_func(self, (char **)&pdata, size); |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 3311 | if (i < 0) return -1; |
| 3312 | along = _PyLong_FromByteArray(pdata, (size_t)size, |
| 3313 | 1 /* little endian */, 1 /* signed */); |
| 3314 | } |
| 3315 | if (along == NULL) |
| 3316 | return -1; |
| 3317 | PDATA_PUSH(self->stack, along, -1); |
| 3318 | return 0; |
| 3319 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3320 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3321 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3322 | load_float(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3323 | { |
| 3324 | PyObject *py_float = 0; |
| 3325 | char *endptr, *s; |
| 3326 | int len, res = -1; |
| 3327 | double d; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3328 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3329 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3330 | if (len < 2) return bad_readline(); |
| 3331 | if (!( s=pystrndup(s,len))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3332 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3333 | errno = 0; |
| 3334 | d = strtod(s, &endptr); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3335 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3336 | if (errno || (endptr[0] != '\n') || (endptr[1] != '\0')) { |
| 3337 | PyErr_SetString(PyExc_ValueError, |
| 3338 | "could not convert string to float"); |
| 3339 | goto finally; |
| 3340 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3341 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3342 | if (!( py_float = PyFloat_FromDouble(d))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3343 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3344 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3345 | free(s); |
| 3346 | PDATA_PUSH(self->stack, py_float, -1); |
| 3347 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3348 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3349 | finally: |
| 3350 | free(s); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3351 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3352 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3353 | } |
| 3354 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3355 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3356 | load_binfloat(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3357 | { |
| 3358 | PyObject *py_float = 0; |
| 3359 | int s, e; |
| 3360 | long fhi, flo; |
| 3361 | double x; |
| 3362 | char *p; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3363 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3364 | if (self->read_func(self, &p, 8) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3365 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3366 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3367 | /* First byte */ |
| 3368 | s = (*p>>7) & 1; |
| 3369 | e = (*p & 0x7F) << 4; |
| 3370 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3371 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3372 | /* Second byte */ |
| 3373 | e |= (*p>>4) & 0xF; |
| 3374 | fhi = (*p & 0xF) << 24; |
| 3375 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3376 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3377 | /* Third byte */ |
| 3378 | fhi |= (*p & 0xFF) << 16; |
| 3379 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3380 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3381 | /* Fourth byte */ |
| 3382 | fhi |= (*p & 0xFF) << 8; |
| 3383 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3384 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3385 | /* Fifth byte */ |
| 3386 | fhi |= *p & 0xFF; |
| 3387 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3388 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3389 | /* Sixth byte */ |
| 3390 | flo = (*p & 0xFF) << 16; |
| 3391 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3392 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3393 | /* Seventh byte */ |
| 3394 | flo |= (*p & 0xFF) << 8; |
| 3395 | p++; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3396 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3397 | /* Eighth byte */ |
| 3398 | flo |= *p & 0xFF; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3399 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3400 | x = (double)fhi + (double)flo / 16777216.0; /* 2**24 */ |
| 3401 | x /= 268435456.0; /* 2**28 */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3402 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3403 | /* XXX This sadly ignores Inf/NaN */ |
| 3404 | if (e == 0) |
| 3405 | e = -1022; |
| 3406 | else { |
| 3407 | x += 1.0; |
| 3408 | e -= 1023; |
| 3409 | } |
| 3410 | x = ldexp(x, e); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3411 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3412 | if (s) |
| 3413 | x = -x; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3414 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3415 | if (!( py_float = PyFloat_FromDouble(x))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3416 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3417 | PDATA_PUSH(self->stack, py_float, -1); |
| 3418 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3419 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3420 | |
| 3421 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3422 | load_string(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3423 | { |
| 3424 | PyObject *str = 0; |
Martin v. Löwis | 8a8da79 | 2002-08-14 07:46:28 +0000 | [diff] [blame] | 3425 | int len, res = -1; |
| 3426 | char *s, *p; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3427 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3428 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3429 | if (len < 2) return bad_readline(); |
| 3430 | if (!( s=pystrndup(s,len))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3431 | |
Martin v. Löwis | 8a8da79 | 2002-08-14 07:46:28 +0000 | [diff] [blame] | 3432 | |
| 3433 | /* Strip outermost quotes */ |
| 3434 | while (s[len-1] <= ' ') |
| 3435 | len--; |
| 3436 | if(s[0]=='"' && s[len-1]=='"'){ |
| 3437 | s[len-1] = '\0'; |
| 3438 | p = s + 1 ; |
| 3439 | len -= 2; |
| 3440 | } else if(s[0]=='\'' && s[len-1]=='\''){ |
| 3441 | s[len-1] = '\0'; |
| 3442 | p = s + 1 ; |
| 3443 | len -= 2; |
| 3444 | } else |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3445 | goto insecure; |
| 3446 | /********************************************/ |
Guido van Rossum | 9716aaa | 1997-12-08 15:15:16 +0000 | [diff] [blame] | 3447 | |
Martin v. Löwis | 8a8da79 | 2002-08-14 07:46:28 +0000 | [diff] [blame] | 3448 | str = PyString_DecodeEscape(p, len, NULL, 0, NULL); |
| 3449 | if (str) { |
| 3450 | PDATA_PUSH(self->stack, str, -1); |
| 3451 | res = 0; |
| 3452 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3453 | free(s); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3454 | return res; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3455 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3456 | insecure: |
| 3457 | free(s); |
| 3458 | PyErr_SetString(PyExc_ValueError,"insecure string pickle"); |
| 3459 | return -1; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3460 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3461 | |
| 3462 | |
| 3463 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3464 | load_binstring(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3465 | { |
| 3466 | PyObject *py_string = 0; |
| 3467 | long l; |
| 3468 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3469 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3470 | if (self->read_func(self, &s, 4) < 0) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3471 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3472 | l = calc_binint(s, 4); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3473 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3474 | if (self->read_func(self, &s, l) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3475 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3476 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3477 | if (!( py_string = PyString_FromStringAndSize(s, l))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3478 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3479 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3480 | PDATA_PUSH(self->stack, py_string, -1); |
| 3481 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3482 | } |
| 3483 | |
| 3484 | |
| 3485 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3486 | load_short_binstring(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3487 | { |
| 3488 | PyObject *py_string = 0; |
| 3489 | unsigned char l; |
| 3490 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3491 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3492 | if (self->read_func(self, &s, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3493 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3494 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3495 | l = (unsigned char)s[0]; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3496 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3497 | if (self->read_func(self, &s, l) < 0) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3498 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3499 | if (!( py_string = PyString_FromStringAndSize(s, l))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3500 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3501 | PDATA_PUSH(self->stack, py_string, -1); |
| 3502 | return 0; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3503 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3504 | |
| 3505 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 3506 | #ifdef Py_USING_UNICODE |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3507 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3508 | load_unicode(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3509 | { |
| 3510 | PyObject *str = 0; |
| 3511 | int len, res = -1; |
| 3512 | char *s; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3513 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3514 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3515 | if (len < 1) return bad_readline(); |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3516 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3517 | if (!( str = PyUnicode_DecodeRawUnicodeEscape(s, len - 1, NULL))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3518 | goto finally; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3519 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3520 | PDATA_PUSH(self->stack, str, -1); |
| 3521 | return 0; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3522 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3523 | finally: |
| 3524 | return res; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3525 | } |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 3526 | #endif |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3527 | |
| 3528 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 3529 | #ifdef Py_USING_UNICODE |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3530 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3531 | load_binunicode(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3532 | { |
| 3533 | PyObject *unicode; |
| 3534 | long l; |
| 3535 | char *s; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3536 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3537 | if (self->read_func(self, &s, 4) < 0) return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3538 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3539 | l = calc_binint(s, 4); |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3540 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3541 | if (self->read_func(self, &s, l) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3542 | return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3543 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3544 | if (!( unicode = PyUnicode_DecodeUTF8(s, l, NULL))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3545 | return -1; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3546 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3547 | PDATA_PUSH(self->stack, unicode, -1); |
| 3548 | return 0; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3549 | } |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 3550 | #endif |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 3551 | |
| 3552 | |
| 3553 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3554 | load_tuple(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3555 | { |
| 3556 | PyObject *tup; |
| 3557 | int i; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3558 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3559 | if ((i = marker(self)) < 0) return -1; |
| 3560 | if (!( tup=Pdata_popTuple(self->stack, i))) return -1; |
| 3561 | PDATA_PUSH(self->stack, tup, -1); |
| 3562 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3563 | } |
| 3564 | |
| 3565 | static int |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 3566 | load_counted_tuple(Unpicklerobject *self, int len) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3567 | { |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 3568 | PyObject *tup = PyTuple_New(len); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3569 | |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 3570 | if (tup == NULL) |
| 3571 | return -1; |
| 3572 | |
| 3573 | while (--len >= 0) { |
| 3574 | PyObject *element; |
| 3575 | |
| 3576 | PDATA_POP(self->stack, element); |
| 3577 | if (element == NULL) |
| 3578 | return -1; |
| 3579 | PyTuple_SET_ITEM(tup, len, element); |
| 3580 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3581 | PDATA_PUSH(self->stack, tup, -1); |
| 3582 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3583 | } |
| 3584 | |
| 3585 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3586 | load_empty_list(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3587 | { |
| 3588 | PyObject *list; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3589 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3590 | if (!( list=PyList_New(0))) return -1; |
| 3591 | PDATA_PUSH(self->stack, list, -1); |
| 3592 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3593 | } |
| 3594 | |
| 3595 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3596 | load_empty_dict(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3597 | { |
| 3598 | PyObject *dict; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3599 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3600 | if (!( dict=PyDict_New())) return -1; |
| 3601 | PDATA_PUSH(self->stack, dict, -1); |
| 3602 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3603 | } |
| 3604 | |
| 3605 | |
| 3606 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3607 | load_list(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3608 | { |
| 3609 | PyObject *list = 0; |
| 3610 | int i; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3611 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3612 | if ((i = marker(self)) < 0) return -1; |
| 3613 | if (!( list=Pdata_popList(self->stack, i))) return -1; |
| 3614 | PDATA_PUSH(self->stack, list, -1); |
| 3615 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3616 | } |
| 3617 | |
| 3618 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3619 | load_dict(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3620 | { |
| 3621 | PyObject *dict, *key, *value; |
| 3622 | int i, j, k; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3623 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3624 | if ((i = marker(self)) < 0) return -1; |
| 3625 | j=self->stack->length; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3626 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3627 | if (!( dict = PyDict_New())) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3628 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3629 | for (k = i+1; k < j; k += 2) { |
| 3630 | key =self->stack->data[k-1]; |
| 3631 | value=self->stack->data[k ]; |
| 3632 | if (PyDict_SetItem(dict, key, value) < 0) { |
| 3633 | Py_DECREF(dict); |
| 3634 | return -1; |
| 3635 | } |
| 3636 | } |
| 3637 | Pdata_clear(self->stack, i); |
| 3638 | PDATA_PUSH(self->stack, dict, -1); |
| 3639 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3640 | } |
| 3641 | |
| 3642 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3643 | Instance_New(PyObject *cls, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3644 | { |
Tim Peters | 1f1b2d2 | 2003-02-01 02:16:37 +0000 | [diff] [blame] | 3645 | PyObject *r = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3646 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3647 | if (PyClass_Check(cls)) { |
| 3648 | int l; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3649 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3650 | if ((l=PyObject_Size(args)) < 0) goto err; |
| 3651 | if (!( l )) { |
| 3652 | PyObject *__getinitargs__; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 3653 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3654 | __getinitargs__ = PyObject_GetAttr(cls, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3655 | __getinitargs___str); |
| 3656 | if (!__getinitargs__) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3657 | /* We have a class with no __getinitargs__, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3658 | so bypass usual construction */ |
| 3659 | PyObject *inst; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 3660 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3661 | PyErr_Clear(); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3662 | if (!( inst=PyInstance_NewRaw(cls, NULL))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3663 | goto err; |
| 3664 | return inst; |
| 3665 | } |
| 3666 | Py_DECREF(__getinitargs__); |
| 3667 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3668 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3669 | if ((r=PyInstance_New(cls, args, NULL))) return r; |
| 3670 | else goto err; |
| 3671 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3672 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3673 | if (args==Py_None) { |
| 3674 | /* Special case, call cls.__basicnew__() */ |
| 3675 | PyObject *basicnew; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3676 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3677 | basicnew = PyObject_GetAttr(cls, __basicnew___str); |
| 3678 | if (!basicnew) return NULL; |
| 3679 | r=PyObject_CallObject(basicnew, NULL); |
| 3680 | Py_DECREF(basicnew); |
| 3681 | if (r) return r; |
| 3682 | } |
Guido van Rossum | 9716aaa | 1997-12-08 15:15:16 +0000 | [diff] [blame] | 3683 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3684 | if ((r=PyObject_CallObject(cls, args))) return r; |
Guido van Rossum | 142eeb8 | 1997-08-13 03:14:41 +0000 | [diff] [blame] | 3685 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3686 | err: |
| 3687 | { |
| 3688 | PyObject *tp, *v, *tb; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3689 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3690 | PyErr_Fetch(&tp, &v, &tb); |
| 3691 | if ((r=Py_BuildValue("OOO",v,cls,args))) { |
| 3692 | Py_XDECREF(v); |
| 3693 | v=r; |
| 3694 | } |
| 3695 | PyErr_Restore(tp,v,tb); |
| 3696 | } |
| 3697 | return NULL; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3698 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3699 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3700 | |
| 3701 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3702 | load_obj(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3703 | { |
| 3704 | PyObject *class, *tup, *obj=0; |
| 3705 | int i; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3706 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3707 | if ((i = marker(self)) < 0) return -1; |
| 3708 | if (!( tup=Pdata_popTuple(self->stack, i+1))) return -1; |
| 3709 | PDATA_POP(self->stack, class); |
| 3710 | if (class) { |
| 3711 | obj = Instance_New(class, tup); |
| 3712 | Py_DECREF(class); |
| 3713 | } |
| 3714 | Py_DECREF(tup); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3715 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3716 | if (! obj) return -1; |
| 3717 | PDATA_PUSH(self->stack, obj, -1); |
| 3718 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3719 | } |
| 3720 | |
| 3721 | |
| 3722 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3723 | load_inst(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3724 | { |
| 3725 | PyObject *tup, *class=0, *obj=0, *module_name, *class_name; |
| 3726 | int i, len; |
| 3727 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3728 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3729 | if ((i = marker(self)) < 0) return -1; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 3730 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3731 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3732 | if (len < 2) return bad_readline(); |
| 3733 | module_name = PyString_FromStringAndSize(s, len - 1); |
| 3734 | if (!module_name) return -1; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 3735 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3736 | if ((len = self->readline_func(self, &s)) >= 0) { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3737 | if (len < 2) return bad_readline(); |
| 3738 | if ((class_name = PyString_FromStringAndSize(s, len - 1))) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3739 | class = find_class(module_name, class_name, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3740 | self->find_class); |
| 3741 | Py_DECREF(class_name); |
| 3742 | } |
| 3743 | } |
| 3744 | Py_DECREF(module_name); |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 3745 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3746 | if (! class) return -1; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3747 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3748 | if ((tup=Pdata_popTuple(self->stack, i))) { |
| 3749 | obj = Instance_New(class, tup); |
| 3750 | Py_DECREF(tup); |
| 3751 | } |
| 3752 | Py_DECREF(class); |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 3753 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3754 | if (! obj) return -1; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 3755 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3756 | PDATA_PUSH(self->stack, obj, -1); |
| 3757 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3758 | } |
| 3759 | |
Tim Peters | eab7db3 | 2003-02-13 18:24:14 +0000 | [diff] [blame] | 3760 | static int |
| 3761 | load_newobj(Unpicklerobject *self) |
| 3762 | { |
| 3763 | PyObject *args = NULL; |
| 3764 | PyObject *clsraw = NULL; |
| 3765 | PyTypeObject *cls; /* clsraw cast to its true type */ |
| 3766 | PyObject *obj; |
| 3767 | |
| 3768 | /* Stack is ... cls argtuple, and we want to call |
| 3769 | * cls.__new__(cls, *argtuple). |
| 3770 | */ |
| 3771 | PDATA_POP(self->stack, args); |
| 3772 | if (args == NULL) goto Fail; |
| 3773 | if (! PyTuple_Check(args)) { |
| 3774 | PyErr_SetString(UnpicklingError, "NEWOBJ expected an arg " |
| 3775 | "tuple."); |
| 3776 | goto Fail; |
| 3777 | } |
| 3778 | |
| 3779 | PDATA_POP(self->stack, clsraw); |
| 3780 | cls = (PyTypeObject *)clsraw; |
| 3781 | if (cls == NULL) goto Fail; |
| 3782 | if (! PyType_Check(cls)) { |
| 3783 | PyErr_SetString(UnpicklingError, "NEWOBJ class argument " |
| 3784 | "isn't a type object"); |
| 3785 | goto Fail; |
| 3786 | } |
| 3787 | if (cls->tp_new == NULL) { |
| 3788 | PyErr_SetString(UnpicklingError, "NEWOBJ class argument " |
| 3789 | "has NULL tp_new"); |
| 3790 | goto Fail; |
| 3791 | } |
| 3792 | |
| 3793 | /* Call __new__. */ |
| 3794 | obj = cls->tp_new(cls, args, NULL); |
| 3795 | if (obj == NULL) goto Fail; |
| 3796 | |
| 3797 | Py_DECREF(args); |
| 3798 | Py_DECREF(clsraw); |
| 3799 | PDATA_PUSH(self->stack, obj, -1); |
| 3800 | return 0; |
| 3801 | |
| 3802 | Fail: |
| 3803 | Py_XDECREF(args); |
| 3804 | Py_XDECREF(clsraw); |
| 3805 | return -1; |
| 3806 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3807 | |
| 3808 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3809 | load_global(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3810 | { |
| 3811 | PyObject *class = 0, *module_name = 0, *class_name = 0; |
| 3812 | int len; |
| 3813 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3814 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3815 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3816 | if (len < 2) return bad_readline(); |
| 3817 | module_name = PyString_FromStringAndSize(s, len - 1); |
| 3818 | if (!module_name) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3819 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3820 | if ((len = self->readline_func(self, &s)) >= 0) { |
Tim Peters | 4e52ca8 | 2002-12-07 02:43:28 +0000 | [diff] [blame] | 3821 | if (len < 2) { |
| 3822 | Py_DECREF(module_name); |
| 3823 | return bad_readline(); |
| 3824 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3825 | if ((class_name = PyString_FromStringAndSize(s, len - 1))) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3826 | class = find_class(module_name, class_name, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3827 | self->find_class); |
| 3828 | Py_DECREF(class_name); |
| 3829 | } |
| 3830 | } |
| 3831 | Py_DECREF(module_name); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3832 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3833 | if (! class) return -1; |
| 3834 | PDATA_PUSH(self->stack, class, -1); |
| 3835 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3836 | } |
| 3837 | |
| 3838 | |
| 3839 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3840 | load_persid(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3841 | { |
| 3842 | PyObject *pid = 0; |
| 3843 | int len; |
| 3844 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3845 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3846 | if (self->pers_func) { |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3847 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3848 | if (len < 2) return bad_readline(); |
| 3849 | |
| 3850 | pid = PyString_FromStringAndSize(s, len - 1); |
| 3851 | if (!pid) return -1; |
| 3852 | |
| 3853 | if (PyList_Check(self->pers_func)) { |
| 3854 | if (PyList_Append(self->pers_func, pid) < 0) { |
| 3855 | Py_DECREF(pid); |
| 3856 | return -1; |
| 3857 | } |
| 3858 | } |
| 3859 | else { |
| 3860 | ARG_TUP(self, pid); |
| 3861 | if (self->arg) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3862 | pid = PyObject_Call(self->pers_func, self->arg, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3863 | NULL); |
| 3864 | FREE_ARG_TUP(self); |
| 3865 | } |
| 3866 | } |
| 3867 | |
| 3868 | if (! pid) return -1; |
| 3869 | |
| 3870 | PDATA_PUSH(self->stack, pid, -1); |
| 3871 | return 0; |
| 3872 | } |
| 3873 | else { |
| 3874 | PyErr_SetString(UnpicklingError, |
| 3875 | "A load persistent id instruction was encountered,\n" |
| 3876 | "but no persistent_load function was specified."); |
| 3877 | return -1; |
| 3878 | } |
| 3879 | } |
| 3880 | |
| 3881 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3882 | load_binpersid(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3883 | { |
| 3884 | PyObject *pid = 0; |
| 3885 | |
| 3886 | if (self->pers_func) { |
| 3887 | PDATA_POP(self->stack, pid); |
| 3888 | if (! pid) return -1; |
| 3889 | |
| 3890 | if (PyList_Check(self->pers_func)) { |
| 3891 | if (PyList_Append(self->pers_func, pid) < 0) { |
| 3892 | Py_DECREF(pid); |
| 3893 | return -1; |
| 3894 | } |
| 3895 | } |
| 3896 | else { |
| 3897 | ARG_TUP(self, pid); |
| 3898 | if (self->arg) { |
| 3899 | pid = PyObject_Call(self->pers_func, self->arg, |
| 3900 | NULL); |
| 3901 | FREE_ARG_TUP(self); |
| 3902 | } |
| 3903 | if (! pid) return -1; |
| 3904 | } |
| 3905 | |
| 3906 | PDATA_PUSH(self->stack, pid, -1); |
| 3907 | return 0; |
| 3908 | } |
| 3909 | else { |
| 3910 | PyErr_SetString(UnpicklingError, |
| 3911 | "A load persistent id instruction was encountered,\n" |
| 3912 | "but no persistent_load function was specified."); |
| 3913 | return -1; |
| 3914 | } |
| 3915 | } |
| 3916 | |
| 3917 | |
| 3918 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3919 | load_pop(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3920 | { |
| 3921 | int len; |
| 3922 | |
| 3923 | if (!( (len=self->stack->length) > 0 )) return stackUnderflow(); |
| 3924 | |
| 3925 | /* Note that we split the (pickle.py) stack into two stacks, |
| 3926 | an object stack and a mark stack. We have to be clever and |
| 3927 | pop the right one. We do this by looking at the top of the |
| 3928 | mark stack. |
| 3929 | */ |
| 3930 | |
| 3931 | if ((self->num_marks > 0) && |
| 3932 | (self->marks[self->num_marks - 1] == len)) |
| 3933 | self->num_marks--; |
| 3934 | else { |
| 3935 | len--; |
| 3936 | Py_DECREF(self->stack->data[len]); |
| 3937 | self->stack->length=len; |
| 3938 | } |
| 3939 | |
| 3940 | return 0; |
| 3941 | } |
| 3942 | |
| 3943 | |
| 3944 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3945 | load_pop_mark(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3946 | { |
| 3947 | int i; |
| 3948 | |
| 3949 | if ((i = marker(self)) < 0) |
| 3950 | return -1; |
| 3951 | |
| 3952 | Pdata_clear(self->stack, i); |
| 3953 | |
| 3954 | return 0; |
| 3955 | } |
| 3956 | |
| 3957 | |
| 3958 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3959 | load_dup(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3960 | { |
| 3961 | PyObject *last; |
| 3962 | int len; |
| 3963 | |
| 3964 | if ((len = self->stack->length) <= 0) return stackUnderflow(); |
| 3965 | last=self->stack->data[len-1]; |
| 3966 | Py_INCREF(last); |
| 3967 | PDATA_PUSH(self->stack, last, -1); |
| 3968 | return 0; |
| 3969 | } |
| 3970 | |
| 3971 | |
| 3972 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 3973 | load_get(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3974 | { |
| 3975 | PyObject *py_str = 0, *value = 0; |
| 3976 | int len; |
| 3977 | char *s; |
| 3978 | int rc; |
| 3979 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 3980 | if ((len = self->readline_func(self, &s)) < 0) return -1; |
Guido van Rossum | f9ffb03 | 1999-02-04 14:54:04 +0000 | [diff] [blame] | 3981 | if (len < 2) return bad_readline(); |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 3982 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3983 | if (!( py_str = PyString_FromStringAndSize(s, len - 1))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3984 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3985 | value = PyDict_GetItem(self->memo, py_str); |
| 3986 | if (! value) { |
| 3987 | PyErr_SetObject(BadPickleGet, py_str); |
| 3988 | rc = -1; |
Tim Peters | 92c8bb3 | 2003-02-13 23:00:26 +0000 | [diff] [blame] | 3989 | } |
| 3990 | else { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3991 | PDATA_APPEND(self->stack, value, -1); |
| 3992 | rc = 0; |
| 3993 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3994 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 3995 | Py_DECREF(py_str); |
| 3996 | return rc; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 3997 | } |
| 3998 | |
| 3999 | |
| 4000 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4001 | load_binget(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4002 | { |
| 4003 | PyObject *py_key = 0, *value = 0; |
| 4004 | unsigned char key; |
| 4005 | char *s; |
| 4006 | int rc; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4007 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4008 | if (self->read_func(self, &s, 1) < 0) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4009 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4010 | key = (unsigned char)s[0]; |
| 4011 | if (!( py_key = PyInt_FromLong((long)key))) return -1; |
Guido van Rossum | ea2b715 | 2000-05-09 18:14:50 +0000 | [diff] [blame] | 4012 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4013 | value = PyDict_GetItem(self->memo, py_key); |
| 4014 | if (! value) { |
| 4015 | PyErr_SetObject(BadPickleGet, py_key); |
| 4016 | rc = -1; |
Tim Peters | 92c8bb3 | 2003-02-13 23:00:26 +0000 | [diff] [blame] | 4017 | } |
| 4018 | else { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4019 | PDATA_APPEND(self->stack, value, -1); |
| 4020 | rc = 0; |
| 4021 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4022 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4023 | Py_DECREF(py_key); |
| 4024 | return rc; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4025 | } |
| 4026 | |
| 4027 | |
| 4028 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4029 | load_long_binget(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4030 | { |
| 4031 | PyObject *py_key = 0, *value = 0; |
| 4032 | unsigned char c; |
| 4033 | char *s; |
| 4034 | long key; |
| 4035 | int rc; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4036 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4037 | if (self->read_func(self, &s, 4) < 0) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4038 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4039 | c = (unsigned char)s[0]; |
| 4040 | key = (long)c; |
| 4041 | c = (unsigned char)s[1]; |
| 4042 | key |= (long)c << 8; |
| 4043 | c = (unsigned char)s[2]; |
| 4044 | key |= (long)c << 16; |
| 4045 | c = (unsigned char)s[3]; |
| 4046 | key |= (long)c << 24; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4047 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4048 | if (!( py_key = PyInt_FromLong((long)key))) return -1; |
| 4049 | |
| 4050 | value = PyDict_GetItem(self->memo, py_key); |
| 4051 | if (! value) { |
| 4052 | PyErr_SetObject(BadPickleGet, py_key); |
| 4053 | rc = -1; |
Tim Peters | 92c8bb3 | 2003-02-13 23:00:26 +0000 | [diff] [blame] | 4054 | } |
| 4055 | else { |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4056 | PDATA_APPEND(self->stack, value, -1); |
| 4057 | rc = 0; |
| 4058 | } |
| 4059 | |
| 4060 | Py_DECREF(py_key); |
| 4061 | return rc; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4062 | } |
| 4063 | |
Tim Peters | 2d62965 | 2003-02-04 05:06:17 +0000 | [diff] [blame] | 4064 | /* Push an object from the extension registry (EXT[124]). nbytes is |
| 4065 | * the number of bytes following the opcode, holding the index (code) value. |
| 4066 | */ |
| 4067 | static int |
| 4068 | load_extension(Unpicklerobject *self, int nbytes) |
| 4069 | { |
| 4070 | char *codebytes; /* the nbytes bytes after the opcode */ |
| 4071 | long code; /* calc_binint returns long */ |
| 4072 | PyObject *py_code; /* code as a Python int */ |
| 4073 | PyObject *obj; /* the object to push */ |
| 4074 | PyObject *pair; /* (module_name, class_name) */ |
| 4075 | PyObject *module_name, *class_name; |
| 4076 | |
| 4077 | assert(nbytes == 1 || nbytes == 2 || nbytes == 4); |
| 4078 | if (self->read_func(self, &codebytes, nbytes) < 0) return -1; |
| 4079 | code = calc_binint(codebytes, nbytes); |
| 4080 | if (code <= 0) { /* note that 0 is forbidden */ |
| 4081 | /* Corrupt or hostile pickle. */ |
| 4082 | PyErr_SetString(UnpicklingError, "EXT specifies code <= 0"); |
| 4083 | return -1; |
| 4084 | } |
| 4085 | |
| 4086 | /* Look for the code in the cache. */ |
| 4087 | py_code = PyInt_FromLong(code); |
| 4088 | if (py_code == NULL) return -1; |
| 4089 | obj = PyDict_GetItem(extension_cache, py_code); |
| 4090 | if (obj != NULL) { |
| 4091 | /* Bingo. */ |
| 4092 | Py_DECREF(py_code); |
| 4093 | PDATA_APPEND(self->stack, obj, -1); |
| 4094 | return 0; |
| 4095 | } |
| 4096 | |
| 4097 | /* Look up the (module_name, class_name) pair. */ |
| 4098 | pair = PyDict_GetItem(inverted_registry, py_code); |
| 4099 | if (pair == NULL) { |
| 4100 | Py_DECREF(py_code); |
| 4101 | PyErr_Format(PyExc_ValueError, "unregistered extension " |
| 4102 | "code %ld", code); |
| 4103 | return -1; |
| 4104 | } |
| 4105 | /* Since the extension registry is manipulable via Python code, |
Tim Peters | fa05ce3 | 2003-02-04 05:20:32 +0000 | [diff] [blame] | 4106 | * confirm that pair is really a 2-tuple of strings. |
Tim Peters | 2d62965 | 2003-02-04 05:06:17 +0000 | [diff] [blame] | 4107 | */ |
| 4108 | if (!PyTuple_Check(pair) || PyTuple_Size(pair) != 2 || |
| 4109 | !PyString_Check(module_name = PyTuple_GET_ITEM(pair, 0)) || |
| 4110 | !PyString_Check(class_name = PyTuple_GET_ITEM(pair, 1))) { |
| 4111 | Py_DECREF(py_code); |
| 4112 | PyErr_Format(PyExc_ValueError, "_inverted_registry[%ld] " |
| 4113 | "isn't a 2-tuple of strings", code); |
| 4114 | return -1; |
| 4115 | } |
| 4116 | /* Load the object. */ |
| 4117 | obj = find_class(module_name, class_name, self->find_class); |
| 4118 | if (obj == NULL) { |
| 4119 | Py_DECREF(py_code); |
| 4120 | return -1; |
| 4121 | } |
| 4122 | /* Cache code -> obj. */ |
| 4123 | code = PyDict_SetItem(extension_cache, py_code, obj); |
| 4124 | Py_DECREF(py_code); |
| 4125 | if (code < 0) { |
| 4126 | Py_DECREF(obj); |
| 4127 | return -1; |
| 4128 | } |
| 4129 | PDATA_PUSH(self->stack, obj, -1); |
| 4130 | return 0; |
| 4131 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4132 | |
| 4133 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4134 | load_put(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4135 | { |
| 4136 | PyObject *py_str = 0, *value = 0; |
| 4137 | int len, l; |
| 4138 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4139 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4140 | if ((l = self->readline_func(self, &s)) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4141 | if (l < 2) return bad_readline(); |
| 4142 | if (!( len=self->stack->length )) return stackUnderflow(); |
| 4143 | if (!( py_str = PyString_FromStringAndSize(s, l - 1))) return -1; |
| 4144 | value=self->stack->data[len-1]; |
| 4145 | l=PyDict_SetItem(self->memo, py_str, value); |
| 4146 | Py_DECREF(py_str); |
| 4147 | return l; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4148 | } |
| 4149 | |
| 4150 | |
| 4151 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4152 | load_binput(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4153 | { |
| 4154 | PyObject *py_key = 0, *value = 0; |
| 4155 | unsigned char key; |
| 4156 | char *s; |
| 4157 | int len; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4158 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4159 | if (self->read_func(self, &s, 1) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4160 | if (!( (len=self->stack->length) > 0 )) return stackUnderflow(); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4161 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4162 | key = (unsigned char)s[0]; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 4163 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4164 | if (!( py_key = PyInt_FromLong((long)key))) return -1; |
| 4165 | value=self->stack->data[len-1]; |
| 4166 | len=PyDict_SetItem(self->memo, py_key, value); |
| 4167 | Py_DECREF(py_key); |
| 4168 | return len; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4169 | } |
| 4170 | |
| 4171 | |
| 4172 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4173 | load_long_binput(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4174 | { |
| 4175 | PyObject *py_key = 0, *value = 0; |
| 4176 | long key; |
| 4177 | unsigned char c; |
| 4178 | char *s; |
| 4179 | int len; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4180 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4181 | if (self->read_func(self, &s, 4) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4182 | if (!( len=self->stack->length )) return stackUnderflow(); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4183 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4184 | c = (unsigned char)s[0]; |
| 4185 | key = (long)c; |
| 4186 | c = (unsigned char)s[1]; |
| 4187 | key |= (long)c << 8; |
| 4188 | c = (unsigned char)s[2]; |
| 4189 | key |= (long)c << 16; |
| 4190 | c = (unsigned char)s[3]; |
| 4191 | key |= (long)c << 24; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4192 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4193 | if (!( py_key = PyInt_FromLong(key))) return -1; |
| 4194 | value=self->stack->data[len-1]; |
| 4195 | len=PyDict_SetItem(self->memo, py_key, value); |
| 4196 | Py_DECREF(py_key); |
| 4197 | return len; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4198 | } |
| 4199 | |
| 4200 | |
| 4201 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4202 | do_append(Unpicklerobject *self, int x) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4203 | { |
| 4204 | PyObject *value = 0, *list = 0, *append_method = 0; |
| 4205 | int len, i; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4206 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4207 | len=self->stack->length; |
| 4208 | if (!( len >= x && x > 0 )) return stackUnderflow(); |
| 4209 | /* nothing to do */ |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4210 | if (len==x) return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4211 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4212 | list=self->stack->data[x-1]; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4213 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4214 | if (PyList_Check(list)) { |
| 4215 | PyObject *slice; |
| 4216 | int list_len; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4217 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4218 | slice=Pdata_popList(self->stack, x); |
| 4219 | list_len = PyList_GET_SIZE(list); |
| 4220 | i=PyList_SetSlice(list, list_len, list_len, slice); |
| 4221 | Py_DECREF(slice); |
| 4222 | return i; |
| 4223 | } |
| 4224 | else { |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4225 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4226 | if (!( append_method = PyObject_GetAttr(list, append_str))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4227 | return -1; |
| 4228 | |
| 4229 | for (i = x; i < len; i++) { |
| 4230 | PyObject *junk; |
| 4231 | |
| 4232 | value=self->stack->data[i]; |
| 4233 | junk=0; |
| 4234 | ARG_TUP(self, value); |
| 4235 | if (self->arg) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4236 | junk = PyObject_Call(append_method, self->arg, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4237 | NULL); |
| 4238 | FREE_ARG_TUP(self); |
| 4239 | } |
| 4240 | if (! junk) { |
| 4241 | Pdata_clear(self->stack, i+1); |
| 4242 | self->stack->length=x; |
| 4243 | Py_DECREF(append_method); |
| 4244 | return -1; |
| 4245 | } |
| 4246 | Py_DECREF(junk); |
| 4247 | } |
| 4248 | self->stack->length=x; |
| 4249 | Py_DECREF(append_method); |
| 4250 | } |
| 4251 | |
| 4252 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4253 | } |
| 4254 | |
| 4255 | |
| 4256 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4257 | load_append(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4258 | { |
| 4259 | return do_append(self, self->stack->length - 1); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4260 | } |
| 4261 | |
| 4262 | |
| 4263 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4264 | load_appends(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4265 | { |
| 4266 | return do_append(self, marker(self)); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4267 | } |
| 4268 | |
| 4269 | |
| 4270 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4271 | do_setitems(Unpicklerobject *self, int x) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4272 | { |
| 4273 | PyObject *value = 0, *key = 0, *dict = 0; |
| 4274 | int len, i, r=0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4275 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4276 | if (!( (len=self->stack->length) >= x |
| 4277 | && x > 0 )) return stackUnderflow(); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4278 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4279 | dict=self->stack->data[x-1]; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4280 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4281 | for (i = x+1; i < len; i += 2) { |
| 4282 | key =self->stack->data[i-1]; |
| 4283 | value=self->stack->data[i ]; |
| 4284 | if (PyObject_SetItem(dict, key, value) < 0) { |
| 4285 | r=-1; |
| 4286 | break; |
| 4287 | } |
| 4288 | } |
| 4289 | |
| 4290 | Pdata_clear(self->stack, x); |
| 4291 | |
| 4292 | return r; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4293 | } |
| 4294 | |
| 4295 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4296 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4297 | load_setitem(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4298 | { |
| 4299 | return do_setitems(self, self->stack->length - 2); |
| 4300 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4301 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4302 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4303 | load_setitems(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4304 | { |
| 4305 | return do_setitems(self, marker(self)); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4306 | } |
| 4307 | |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4308 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4309 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4310 | load_build(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4311 | { |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4312 | PyObject *state, *inst, *slotstate; |
| 4313 | PyObject *__setstate__; |
| 4314 | PyObject *d_key, *d_value; |
| 4315 | int i; |
| 4316 | int res = -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4317 | |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4318 | /* Stack is ... instance, state. We want to leave instance at |
| 4319 | * the stack top, possibly mutated via instance.__setstate__(state). |
| 4320 | */ |
| 4321 | if (self->stack->length < 2) |
| 4322 | return stackUnderflow(); |
| 4323 | PDATA_POP(self->stack, state); |
| 4324 | if (state == NULL) |
| 4325 | return -1; |
| 4326 | inst = self->stack->data[self->stack->length - 1]; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4327 | |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4328 | __setstate__ = PyObject_GetAttr(inst, __setstate___str); |
| 4329 | if (__setstate__ != NULL) { |
| 4330 | PyObject *junk = NULL; |
| 4331 | |
| 4332 | /* The explicit __setstate__ is responsible for everything. */ |
| 4333 | ARG_TUP(self, state); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4334 | if (self->arg) { |
| 4335 | junk = PyObject_Call(__setstate__, self->arg, NULL); |
| 4336 | FREE_ARG_TUP(self); |
| 4337 | } |
| 4338 | Py_DECREF(__setstate__); |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4339 | if (junk == NULL) |
| 4340 | return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4341 | Py_DECREF(junk); |
| 4342 | return 0; |
| 4343 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4344 | PyErr_Clear(); |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4345 | |
| 4346 | /* A default __setstate__. First see whether state embeds a |
| 4347 | * slot state dict too (a proto 2 addition). |
| 4348 | */ |
| 4349 | if (PyTuple_Check(state) && PyTuple_Size(state) == 2) { |
| 4350 | PyObject *temp = state; |
| 4351 | state = PyTuple_GET_ITEM(temp, 0); |
| 4352 | slotstate = PyTuple_GET_ITEM(temp, 1); |
| 4353 | Py_INCREF(state); |
| 4354 | Py_INCREF(slotstate); |
| 4355 | Py_DECREF(temp); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4356 | } |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4357 | else |
| 4358 | slotstate = NULL; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4359 | |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4360 | /* Set inst.__dict__ from the state dict (if any). */ |
| 4361 | if (state != Py_None) { |
| 4362 | PyObject *dict; |
| 4363 | if (! PyDict_Check(state)) { |
| 4364 | PyErr_SetString(UnpicklingError, "state is not a " |
| 4365 | "dictionary"); |
| 4366 | goto finally; |
| 4367 | } |
| 4368 | dict = PyObject_GetAttr(inst, __dict___str); |
| 4369 | if (dict == NULL) |
| 4370 | goto finally; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4371 | |
Tim Peters | 080c88b | 2003-02-15 03:01:11 +0000 | [diff] [blame^] | 4372 | i = 0; |
| 4373 | while (PyDict_Next(state, &i, &d_key, &d_value)) { |
| 4374 | if (PyObject_SetItem(dict, d_key, d_value) < 0) |
| 4375 | goto finally; |
| 4376 | } |
| 4377 | Py_DECREF(dict); |
| 4378 | } |
| 4379 | |
| 4380 | /* Also set instance attributes from the slotstate dict (if any). */ |
| 4381 | if (slotstate != NULL) { |
| 4382 | if (! PyDict_Check(slotstate)) { |
| 4383 | PyErr_SetString(UnpicklingError, "slot state is not " |
| 4384 | "a dictionary"); |
| 4385 | goto finally; |
| 4386 | } |
| 4387 | i = 0; |
| 4388 | while (PyDict_Next(slotstate, &i, &d_key, &d_value)) { |
| 4389 | if (PyObject_SetAttr(inst, d_key, d_value) < 0) |
| 4390 | goto finally; |
| 4391 | } |
| 4392 | } |
| 4393 | res = 0; |
| 4394 | |
| 4395 | finally: |
| 4396 | Py_DECREF(state); |
| 4397 | Py_XDECREF(slotstate); |
| 4398 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4399 | } |
| 4400 | |
| 4401 | |
| 4402 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4403 | load_mark(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4404 | { |
| 4405 | int s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4406 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4407 | /* Note that we split the (pickle.py) stack into two stacks, an |
| 4408 | object stack and a mark stack. Here we push a mark onto the |
| 4409 | mark stack. |
| 4410 | */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4411 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4412 | if ((self->num_marks + 1) >= self->marks_size) { |
| 4413 | s=self->marks_size+20; |
| 4414 | if (s <= self->num_marks) s=self->num_marks + 1; |
| 4415 | if (self->marks == NULL) |
| 4416 | self->marks=(int *)malloc(s * sizeof(int)); |
| 4417 | else |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4418 | self->marks=(int *)realloc(self->marks, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4419 | s * sizeof(int)); |
| 4420 | if (! self->marks) { |
| 4421 | PyErr_NoMemory(); |
| 4422 | return -1; |
| 4423 | } |
| 4424 | self->marks_size = s; |
| 4425 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4426 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4427 | self->marks[self->num_marks++] = self->stack->length; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4428 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4429 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4430 | } |
| 4431 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4432 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4433 | load_reduce(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4434 | { |
| 4435 | PyObject *callable = 0, *arg_tup = 0, *ob = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4436 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4437 | PDATA_POP(self->stack, arg_tup); |
| 4438 | if (! arg_tup) return -1; |
| 4439 | PDATA_POP(self->stack, callable); |
| 4440 | if (callable) { |
| 4441 | ob = Instance_New(callable, arg_tup); |
| 4442 | Py_DECREF(callable); |
| 4443 | } |
| 4444 | Py_DECREF(arg_tup); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4445 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4446 | if (! ob) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4447 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4448 | PDATA_PUSH(self->stack, ob, -1); |
| 4449 | return 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4450 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4451 | |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 4452 | /* Just raises an error if we don't know the protocol specified. PROTO |
| 4453 | * is the first opcode for protocols >= 2. |
| 4454 | */ |
| 4455 | static int |
| 4456 | load_proto(Unpicklerobject *self) |
| 4457 | { |
| 4458 | int i; |
| 4459 | char *protobyte; |
| 4460 | |
| 4461 | i = self->read_func(self, &protobyte, 1); |
| 4462 | if (i < 0) |
| 4463 | return -1; |
| 4464 | |
| 4465 | i = calc_binint(protobyte, 1); |
| 4466 | /* No point checking for < 0, since calc_binint returns an unsigned |
| 4467 | * int when chewing on 1 byte. |
| 4468 | */ |
| 4469 | assert(i >= 0); |
Tim Peters | 8587b3c | 2003-02-13 15:44:41 +0000 | [diff] [blame] | 4470 | if (i <= HIGHEST_PROTOCOL) |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 4471 | return 0; |
| 4472 | |
| 4473 | PyErr_Format(PyExc_ValueError, "unsupported pickle protocol: %d", i); |
| 4474 | return -1; |
| 4475 | } |
| 4476 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4477 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4478 | load(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4479 | { |
| 4480 | PyObject *err = 0, *val = 0; |
| 4481 | char *s; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4482 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4483 | self->num_marks = 0; |
| 4484 | if (self->stack->length) Pdata_clear(self->stack, 0); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4485 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4486 | while (1) { |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4487 | if (self->read_func(self, &s, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4488 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4489 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4490 | switch (s[0]) { |
| 4491 | case NONE: |
| 4492 | if (load_none(self) < 0) |
| 4493 | break; |
| 4494 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4495 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4496 | case BININT: |
| 4497 | if (load_binint(self) < 0) |
| 4498 | break; |
| 4499 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4500 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4501 | case BININT1: |
| 4502 | if (load_binint1(self) < 0) |
| 4503 | break; |
| 4504 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4505 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4506 | case BININT2: |
| 4507 | if (load_binint2(self) < 0) |
| 4508 | break; |
| 4509 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4510 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4511 | case INT: |
| 4512 | if (load_int(self) < 0) |
| 4513 | break; |
| 4514 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4515 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4516 | case LONG: |
| 4517 | if (load_long(self) < 0) |
| 4518 | break; |
| 4519 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4520 | |
Tim Peters | ee1a53c | 2003-02-02 02:57:53 +0000 | [diff] [blame] | 4521 | case LONG1: |
| 4522 | if (load_counted_long(self, 1) < 0) |
| 4523 | break; |
| 4524 | continue; |
| 4525 | |
| 4526 | case LONG4: |
| 4527 | if (load_counted_long(self, 4) < 0) |
| 4528 | break; |
| 4529 | continue; |
| 4530 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4531 | case FLOAT: |
| 4532 | if (load_float(self) < 0) |
| 4533 | break; |
| 4534 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4535 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4536 | case BINFLOAT: |
| 4537 | if (load_binfloat(self) < 0) |
| 4538 | break; |
| 4539 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4540 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4541 | case BINSTRING: |
| 4542 | if (load_binstring(self) < 0) |
| 4543 | break; |
| 4544 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4545 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4546 | case SHORT_BINSTRING: |
| 4547 | if (load_short_binstring(self) < 0) |
| 4548 | break; |
| 4549 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4550 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4551 | case STRING: |
| 4552 | if (load_string(self) < 0) |
| 4553 | break; |
| 4554 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4555 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 4556 | #ifdef Py_USING_UNICODE |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4557 | case UNICODE: |
| 4558 | if (load_unicode(self) < 0) |
| 4559 | break; |
| 4560 | continue; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 4561 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4562 | case BINUNICODE: |
| 4563 | if (load_binunicode(self) < 0) |
| 4564 | break; |
| 4565 | continue; |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 4566 | #endif |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 4567 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4568 | case EMPTY_TUPLE: |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 4569 | if (load_counted_tuple(self, 0) < 0) |
| 4570 | break; |
| 4571 | continue; |
| 4572 | |
| 4573 | case TUPLE1: |
| 4574 | if (load_counted_tuple(self, 1) < 0) |
| 4575 | break; |
| 4576 | continue; |
| 4577 | |
| 4578 | case TUPLE2: |
| 4579 | if (load_counted_tuple(self, 2) < 0) |
| 4580 | break; |
| 4581 | continue; |
| 4582 | |
| 4583 | case TUPLE3: |
| 4584 | if (load_counted_tuple(self, 3) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4585 | break; |
| 4586 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4587 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4588 | case TUPLE: |
| 4589 | if (load_tuple(self) < 0) |
| 4590 | break; |
| 4591 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4592 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4593 | case EMPTY_LIST: |
| 4594 | if (load_empty_list(self) < 0) |
| 4595 | break; |
| 4596 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4597 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4598 | case LIST: |
| 4599 | if (load_list(self) < 0) |
| 4600 | break; |
| 4601 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4602 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4603 | case EMPTY_DICT: |
| 4604 | if (load_empty_dict(self) < 0) |
| 4605 | break; |
| 4606 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4607 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4608 | case DICT: |
| 4609 | if (load_dict(self) < 0) |
| 4610 | break; |
| 4611 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4612 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4613 | case OBJ: |
| 4614 | if (load_obj(self) < 0) |
| 4615 | break; |
| 4616 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4617 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4618 | case INST: |
| 4619 | if (load_inst(self) < 0) |
| 4620 | break; |
| 4621 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4622 | |
Tim Peters | eab7db3 | 2003-02-13 18:24:14 +0000 | [diff] [blame] | 4623 | case NEWOBJ: |
| 4624 | if (load_newobj(self) < 0) |
| 4625 | break; |
| 4626 | continue; |
| 4627 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4628 | case GLOBAL: |
| 4629 | if (load_global(self) < 0) |
| 4630 | break; |
| 4631 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4632 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4633 | case APPEND: |
| 4634 | if (load_append(self) < 0) |
| 4635 | break; |
| 4636 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4637 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4638 | case APPENDS: |
| 4639 | if (load_appends(self) < 0) |
| 4640 | break; |
| 4641 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4642 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4643 | case BUILD: |
| 4644 | if (load_build(self) < 0) |
| 4645 | break; |
| 4646 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4647 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4648 | case DUP: |
| 4649 | if (load_dup(self) < 0) |
| 4650 | break; |
| 4651 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4652 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4653 | case BINGET: |
| 4654 | if (load_binget(self) < 0) |
| 4655 | break; |
| 4656 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4657 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4658 | case LONG_BINGET: |
| 4659 | if (load_long_binget(self) < 0) |
| 4660 | break; |
| 4661 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4662 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4663 | case GET: |
| 4664 | if (load_get(self) < 0) |
| 4665 | break; |
| 4666 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4667 | |
Tim Peters | 2d62965 | 2003-02-04 05:06:17 +0000 | [diff] [blame] | 4668 | case EXT1: |
| 4669 | if (load_extension(self, 1) < 0) |
| 4670 | break; |
| 4671 | continue; |
| 4672 | |
| 4673 | case EXT2: |
| 4674 | if (load_extension(self, 2) < 0) |
| 4675 | break; |
| 4676 | continue; |
| 4677 | |
| 4678 | case EXT4: |
| 4679 | if (load_extension(self, 4) < 0) |
| 4680 | break; |
| 4681 | continue; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4682 | case MARK: |
| 4683 | if (load_mark(self) < 0) |
| 4684 | break; |
| 4685 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4686 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4687 | case BINPUT: |
| 4688 | if (load_binput(self) < 0) |
| 4689 | break; |
| 4690 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4691 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4692 | case LONG_BINPUT: |
| 4693 | if (load_long_binput(self) < 0) |
| 4694 | break; |
| 4695 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4696 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4697 | case PUT: |
| 4698 | if (load_put(self) < 0) |
| 4699 | break; |
| 4700 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4701 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4702 | case POP: |
| 4703 | if (load_pop(self) < 0) |
| 4704 | break; |
| 4705 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4706 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4707 | case POP_MARK: |
| 4708 | if (load_pop_mark(self) < 0) |
| 4709 | break; |
| 4710 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4711 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4712 | case SETITEM: |
| 4713 | if (load_setitem(self) < 0) |
| 4714 | break; |
| 4715 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4716 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4717 | case SETITEMS: |
| 4718 | if (load_setitems(self) < 0) |
| 4719 | break; |
| 4720 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4721 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4722 | case STOP: |
| 4723 | break; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4724 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4725 | case PERSID: |
| 4726 | if (load_persid(self) < 0) |
| 4727 | break; |
| 4728 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4729 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4730 | case BINPERSID: |
| 4731 | if (load_binpersid(self) < 0) |
| 4732 | break; |
| 4733 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4734 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4735 | case REDUCE: |
| 4736 | if (load_reduce(self) < 0) |
| 4737 | break; |
| 4738 | continue; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4739 | |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 4740 | case PROTO: |
| 4741 | if (load_proto(self) < 0) |
| 4742 | break; |
| 4743 | continue; |
| 4744 | |
Tim Peters | 3c67d79 | 2003-02-02 17:59:11 +0000 | [diff] [blame] | 4745 | case NEWTRUE: |
| 4746 | if (load_bool(self, Py_True) < 0) |
| 4747 | break; |
| 4748 | continue; |
| 4749 | |
| 4750 | case NEWFALSE: |
| 4751 | if (load_bool(self, Py_False) < 0) |
| 4752 | break; |
| 4753 | continue; |
| 4754 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4755 | case '\0': |
| 4756 | /* end of file */ |
| 4757 | PyErr_SetNone(PyExc_EOFError); |
| 4758 | break; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4759 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4760 | default: |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4761 | cPickle_ErrFormat(UnpicklingError, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4762 | "invalid load key, '%s'.", |
| 4763 | "c", s[0]); |
| 4764 | return NULL; |
| 4765 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4766 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4767 | break; |
| 4768 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4769 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4770 | if ((err = PyErr_Occurred())) { |
| 4771 | if (err == PyExc_EOFError) { |
| 4772 | PyErr_SetNone(PyExc_EOFError); |
| 4773 | } |
| 4774 | return NULL; |
| 4775 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4776 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4777 | PDATA_POP(self->stack, val); |
| 4778 | return val; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4779 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 4780 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 4781 | |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4782 | /* No-load functions to support noload, which is used to |
| 4783 | find persistent references. */ |
| 4784 | |
| 4785 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4786 | noload_obj(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4787 | { |
| 4788 | int i; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4789 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4790 | if ((i = marker(self)) < 0) return -1; |
| 4791 | return Pdata_clear(self->stack, i+1); |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4792 | } |
| 4793 | |
| 4794 | |
| 4795 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4796 | noload_inst(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4797 | { |
| 4798 | int i; |
| 4799 | char *s; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4800 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4801 | if ((i = marker(self)) < 0) return -1; |
| 4802 | Pdata_clear(self->stack, i); |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4803 | if (self->readline_func(self, &s) < 0) return -1; |
| 4804 | if (self->readline_func(self, &s) < 0) return -1; |
Tim Peters | eab7db3 | 2003-02-13 18:24:14 +0000 | [diff] [blame] | 4805 | PDATA_APPEND(self->stack, Py_None, -1); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4806 | return 0; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4807 | } |
| 4808 | |
| 4809 | static int |
Tim Peters | eab7db3 | 2003-02-13 18:24:14 +0000 | [diff] [blame] | 4810 | noload_newobj(Unpicklerobject *self) |
| 4811 | { |
| 4812 | PyObject *obj; |
| 4813 | |
| 4814 | PDATA_POP(self->stack, obj); /* pop argtuple */ |
| 4815 | if (obj == NULL) return -1; |
| 4816 | Py_DECREF(obj); |
| 4817 | |
| 4818 | PDATA_POP(self->stack, obj); /* pop cls */ |
| 4819 | if (obj == NULL) return -1; |
| 4820 | Py_DECREF(obj); |
| 4821 | |
| 4822 | PDATA_APPEND(self->stack, Py_None, -1); |
| 4823 | return 0; |
| 4824 | } |
| 4825 | |
| 4826 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4827 | noload_global(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4828 | { |
| 4829 | char *s; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4830 | |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4831 | if (self->readline_func(self, &s) < 0) return -1; |
| 4832 | if (self->readline_func(self, &s) < 0) return -1; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4833 | PDATA_APPEND(self->stack, Py_None,-1); |
| 4834 | return 0; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4835 | } |
| 4836 | |
| 4837 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4838 | noload_reduce(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4839 | { |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4840 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4841 | if (self->stack->length < 2) return stackUnderflow(); |
| 4842 | Pdata_clear(self->stack, self->stack->length-2); |
| 4843 | PDATA_APPEND(self->stack, Py_None,-1); |
| 4844 | return 0; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4845 | } |
| 4846 | |
| 4847 | static int |
| 4848 | noload_build(Unpicklerobject *self) { |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4849 | |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 4850 | if (self->stack->length < 1) return stackUnderflow(); |
| 4851 | Pdata_clear(self->stack, self->stack->length-1); |
Guido van Rossum | 50f385c | 1998-12-04 18:48:44 +0000 | [diff] [blame] | 4852 | return 0; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4853 | } |
| 4854 | |
Tim Peters | 2d62965 | 2003-02-04 05:06:17 +0000 | [diff] [blame] | 4855 | static int |
| 4856 | noload_extension(Unpicklerobject *self, int nbytes) |
| 4857 | { |
| 4858 | char *codebytes; |
| 4859 | |
| 4860 | assert(nbytes == 1 || nbytes == 2 || nbytes == 4); |
| 4861 | if (self->read_func(self, &codebytes, nbytes) < 0) return -1; |
| 4862 | PDATA_APPEND(self->stack, Py_None, -1); |
| 4863 | return 0; |
| 4864 | } |
| 4865 | |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4866 | |
| 4867 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 4868 | noload(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4869 | { |
| 4870 | PyObject *err = 0, *val = 0; |
| 4871 | char *s; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4872 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4873 | self->num_marks = 0; |
| 4874 | Pdata_clear(self->stack, 0); |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4875 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4876 | while (1) { |
Tim Peters | 0bc93f5 | 2003-02-02 18:29:33 +0000 | [diff] [blame] | 4877 | if (self->read_func(self, &s, 1) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4878 | break; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4879 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4880 | switch (s[0]) { |
| 4881 | case NONE: |
| 4882 | if (load_none(self) < 0) |
| 4883 | break; |
| 4884 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4885 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4886 | case BININT: |
| 4887 | if (load_binint(self) < 0) |
| 4888 | break; |
| 4889 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4890 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4891 | case BININT1: |
| 4892 | if (load_binint1(self) < 0) |
| 4893 | break; |
| 4894 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4895 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4896 | case BININT2: |
| 4897 | if (load_binint2(self) < 0) |
| 4898 | break; |
| 4899 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4900 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4901 | case INT: |
| 4902 | if (load_int(self) < 0) |
| 4903 | break; |
| 4904 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4905 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4906 | case LONG: |
| 4907 | if (load_long(self) < 0) |
| 4908 | break; |
| 4909 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4910 | |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 4911 | case LONG1: |
| 4912 | if (load_counted_long(self, 1) < 0) |
| 4913 | break; |
| 4914 | continue; |
| 4915 | |
| 4916 | case LONG4: |
| 4917 | if (load_counted_long(self, 4) < 0) |
| 4918 | break; |
| 4919 | continue; |
| 4920 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4921 | case FLOAT: |
| 4922 | if (load_float(self) < 0) |
| 4923 | break; |
| 4924 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4925 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4926 | case BINFLOAT: |
| 4927 | if (load_binfloat(self) < 0) |
| 4928 | break; |
| 4929 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4930 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4931 | case BINSTRING: |
| 4932 | if (load_binstring(self) < 0) |
| 4933 | break; |
| 4934 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4935 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4936 | case SHORT_BINSTRING: |
| 4937 | if (load_short_binstring(self) < 0) |
| 4938 | break; |
| 4939 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4940 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4941 | case STRING: |
| 4942 | if (load_string(self) < 0) |
| 4943 | break; |
| 4944 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4945 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 4946 | #ifdef Py_USING_UNICODE |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4947 | case UNICODE: |
| 4948 | if (load_unicode(self) < 0) |
| 4949 | break; |
| 4950 | continue; |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 4951 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4952 | case BINUNICODE: |
| 4953 | if (load_binunicode(self) < 0) |
| 4954 | break; |
| 4955 | continue; |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 4956 | #endif |
Guido van Rossum | 5fccb7c | 2000-03-10 23:11:40 +0000 | [diff] [blame] | 4957 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4958 | case EMPTY_TUPLE: |
Tim Peters | 1d63c9f | 2003-02-02 20:29:39 +0000 | [diff] [blame] | 4959 | if (load_counted_tuple(self, 0) < 0) |
| 4960 | break; |
| 4961 | continue; |
| 4962 | |
| 4963 | case TUPLE1: |
| 4964 | if (load_counted_tuple(self, 1) < 0) |
| 4965 | break; |
| 4966 | continue; |
| 4967 | |
| 4968 | case TUPLE2: |
| 4969 | if (load_counted_tuple(self, 2) < 0) |
| 4970 | break; |
| 4971 | continue; |
| 4972 | |
| 4973 | case TUPLE3: |
| 4974 | if (load_counted_tuple(self, 3) < 0) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4975 | break; |
| 4976 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4977 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4978 | case TUPLE: |
| 4979 | if (load_tuple(self) < 0) |
| 4980 | break; |
| 4981 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4982 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4983 | case EMPTY_LIST: |
| 4984 | if (load_empty_list(self) < 0) |
| 4985 | break; |
| 4986 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4987 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4988 | case LIST: |
| 4989 | if (load_list(self) < 0) |
| 4990 | break; |
| 4991 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4992 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4993 | case EMPTY_DICT: |
| 4994 | if (load_empty_dict(self) < 0) |
| 4995 | break; |
| 4996 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 4997 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 4998 | case DICT: |
| 4999 | if (load_dict(self) < 0) |
| 5000 | break; |
| 5001 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5002 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5003 | case OBJ: |
| 5004 | if (noload_obj(self) < 0) |
| 5005 | break; |
| 5006 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5007 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5008 | case INST: |
| 5009 | if (noload_inst(self) < 0) |
| 5010 | break; |
| 5011 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5012 | |
Tim Peters | eab7db3 | 2003-02-13 18:24:14 +0000 | [diff] [blame] | 5013 | case NEWOBJ: |
| 5014 | if (noload_newobj(self) < 0) |
| 5015 | break; |
| 5016 | continue; |
| 5017 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5018 | case GLOBAL: |
| 5019 | if (noload_global(self) < 0) |
| 5020 | break; |
| 5021 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5022 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5023 | case APPEND: |
| 5024 | if (load_append(self) < 0) |
| 5025 | break; |
| 5026 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5027 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5028 | case APPENDS: |
| 5029 | if (load_appends(self) < 0) |
| 5030 | break; |
| 5031 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5032 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5033 | case BUILD: |
| 5034 | if (noload_build(self) < 0) |
| 5035 | break; |
| 5036 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5037 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5038 | case DUP: |
| 5039 | if (load_dup(self) < 0) |
| 5040 | break; |
| 5041 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5042 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5043 | case BINGET: |
| 5044 | if (load_binget(self) < 0) |
| 5045 | break; |
| 5046 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5047 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5048 | case LONG_BINGET: |
| 5049 | if (load_long_binget(self) < 0) |
| 5050 | break; |
| 5051 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5052 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5053 | case GET: |
| 5054 | if (load_get(self) < 0) |
| 5055 | break; |
| 5056 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5057 | |
Tim Peters | 2d62965 | 2003-02-04 05:06:17 +0000 | [diff] [blame] | 5058 | case EXT1: |
| 5059 | if (noload_extension(self, 1) < 0) |
| 5060 | break; |
| 5061 | continue; |
| 5062 | |
| 5063 | case EXT2: |
| 5064 | if (noload_extension(self, 2) < 0) |
| 5065 | break; |
| 5066 | continue; |
| 5067 | |
| 5068 | case EXT4: |
| 5069 | if (noload_extension(self, 4) < 0) |
| 5070 | break; |
| 5071 | continue; |
| 5072 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5073 | case MARK: |
| 5074 | if (load_mark(self) < 0) |
| 5075 | break; |
| 5076 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5077 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5078 | case BINPUT: |
| 5079 | if (load_binput(self) < 0) |
| 5080 | break; |
| 5081 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5082 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5083 | case LONG_BINPUT: |
| 5084 | if (load_long_binput(self) < 0) |
| 5085 | break; |
| 5086 | continue; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5087 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5088 | case PUT: |
| 5089 | if (load_put(self) < 0) |
| 5090 | break; |
| 5091 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5092 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5093 | case POP: |
| 5094 | if (load_pop(self) < 0) |
| 5095 | break; |
| 5096 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5097 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5098 | case POP_MARK: |
| 5099 | if (load_pop_mark(self) < 0) |
| 5100 | break; |
| 5101 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5102 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5103 | case SETITEM: |
| 5104 | if (load_setitem(self) < 0) |
| 5105 | break; |
| 5106 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5107 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5108 | case SETITEMS: |
| 5109 | if (load_setitems(self) < 0) |
| 5110 | break; |
| 5111 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5112 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5113 | case STOP: |
| 5114 | break; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5115 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5116 | case PERSID: |
| 5117 | if (load_persid(self) < 0) |
| 5118 | break; |
| 5119 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5120 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5121 | case BINPERSID: |
| 5122 | if (load_binpersid(self) < 0) |
| 5123 | break; |
| 5124 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5125 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5126 | case REDUCE: |
| 5127 | if (noload_reduce(self) < 0) |
| 5128 | break; |
| 5129 | continue; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5130 | |
Tim Peters | 4190fb8 | 2003-02-02 16:09:05 +0000 | [diff] [blame] | 5131 | case PROTO: |
| 5132 | if (load_proto(self) < 0) |
| 5133 | break; |
| 5134 | continue; |
| 5135 | |
Tim Peters | 3c67d79 | 2003-02-02 17:59:11 +0000 | [diff] [blame] | 5136 | case NEWTRUE: |
| 5137 | if (load_bool(self, Py_True) < 0) |
| 5138 | break; |
| 5139 | continue; |
| 5140 | |
| 5141 | case NEWFALSE: |
| 5142 | if (load_bool(self, Py_False) < 0) |
| 5143 | break; |
| 5144 | continue; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5145 | default: |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5146 | cPickle_ErrFormat(UnpicklingError, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5147 | "invalid load key, '%s'.", |
| 5148 | "c", s[0]); |
| 5149 | return NULL; |
| 5150 | } |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5151 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5152 | break; |
| 5153 | } |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5154 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5155 | if ((err = PyErr_Occurred())) { |
| 5156 | if (err == PyExc_EOFError) { |
| 5157 | PyErr_SetNone(PyExc_EOFError); |
| 5158 | } |
| 5159 | return NULL; |
| 5160 | } |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5161 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5162 | PDATA_POP(self->stack, val); |
| 5163 | return val; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5164 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5165 | |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5166 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5167 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5168 | Unpickler_load(Unpicklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5169 | { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5170 | if (!( PyArg_ParseTuple(args, ":load"))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5171 | return NULL; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5172 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5173 | return load(self); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5174 | } |
| 5175 | |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5176 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5177 | Unpickler_noload(Unpicklerobject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5178 | { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5179 | if (!( PyArg_ParseTuple(args, ":noload"))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5180 | return NULL; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5181 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5182 | return noload(self); |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5183 | } |
| 5184 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5185 | |
| 5186 | static struct PyMethodDef Unpickler_methods[] = { |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5187 | {"load", (PyCFunction)Unpickler_load, METH_VARARGS, |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 5188 | PyDoc_STR("load() -- Load a pickle") |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5189 | }, |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5190 | {"noload", (PyCFunction)Unpickler_noload, METH_VARARGS, |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 5191 | PyDoc_STR( |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5192 | "noload() -- not load a pickle, but go through most of the motions\n" |
| 5193 | "\n" |
| 5194 | "This function can be used to read past a pickle without instantiating\n" |
| 5195 | "any objects or importing any modules. It can also be used to find all\n" |
| 5196 | "persistent references without instantiating any objects or importing\n" |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 5197 | "any modules.\n") |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5198 | }, |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5199 | {NULL, NULL} /* sentinel */ |
| 5200 | }; |
| 5201 | |
| 5202 | |
| 5203 | static Unpicklerobject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5204 | newUnpicklerobject(PyObject *f) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5205 | { |
| 5206 | Unpicklerobject *self; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5207 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5208 | if (!( self = PyObject_New(Unpicklerobject, &Unpicklertype))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5209 | return NULL; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5210 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5211 | self->file = NULL; |
| 5212 | self->arg = NULL; |
| 5213 | self->stack = (Pdata*)Pdata_New(); |
| 5214 | self->pers_func = NULL; |
| 5215 | self->last_string = NULL; |
| 5216 | self->marks = NULL; |
| 5217 | self->num_marks = 0; |
| 5218 | self->marks_size = 0; |
| 5219 | self->buf_size = 0; |
| 5220 | self->read = NULL; |
| 5221 | self->readline = NULL; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5222 | self->find_class = NULL; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5223 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5224 | if (!( self->memo = PyDict_New())) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5225 | goto err; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5226 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5227 | Py_INCREF(f); |
| 5228 | self->file = f; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5229 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5230 | /* Set read, readline based on type of f */ |
| 5231 | if (PyFile_Check(f)) { |
| 5232 | self->fp = PyFile_AsFile(f); |
| 5233 | if (self->fp == NULL) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5234 | PyErr_SetString(PyExc_ValueError, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5235 | "I/O operation on closed file"); |
| 5236 | goto err; |
| 5237 | } |
| 5238 | self->read_func = read_file; |
| 5239 | self->readline_func = readline_file; |
Guido van Rossum | c91fcaa | 1999-03-29 20:00:14 +0000 | [diff] [blame] | 5240 | } |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5241 | else if (PycStringIO_InputCheck(f)) { |
| 5242 | self->fp = NULL; |
| 5243 | self->read_func = read_cStringIO; |
| 5244 | self->readline_func = readline_cStringIO; |
| 5245 | } |
| 5246 | else { |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5247 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5248 | self->fp = NULL; |
| 5249 | self->read_func = read_other; |
| 5250 | self->readline_func = readline_other; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5251 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5252 | if (!( (self->readline = PyObject_GetAttr(f, readline_str)) && |
| 5253 | (self->read = PyObject_GetAttr(f, read_str)))) { |
| 5254 | PyErr_Clear(); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5255 | PyErr_SetString( PyExc_TypeError, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5256 | "argument must have 'read' and " |
| 5257 | "'readline' attributes" ); |
| 5258 | goto err; |
| 5259 | } |
| 5260 | } |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5261 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5262 | return self; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5263 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5264 | err: |
| 5265 | Py_DECREF((PyObject *)self); |
| 5266 | return NULL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5267 | } |
| 5268 | |
| 5269 | |
| 5270 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5271 | get_Unpickler(PyObject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5272 | { |
| 5273 | PyObject *file; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5274 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5275 | if (!( PyArg_ParseTuple(args, "O:Unpickler", &file))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5276 | return NULL; |
| 5277 | return (PyObject *)newUnpicklerobject(file); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5278 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5279 | |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5280 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5281 | static void |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5282 | Unpickler_dealloc(Unpicklerobject *self) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5283 | { |
| 5284 | Py_XDECREF(self->readline); |
| 5285 | Py_XDECREF(self->read); |
| 5286 | Py_XDECREF(self->file); |
| 5287 | Py_XDECREF(self->memo); |
| 5288 | Py_XDECREF(self->stack); |
| 5289 | Py_XDECREF(self->pers_func); |
| 5290 | Py_XDECREF(self->arg); |
| 5291 | Py_XDECREF(self->last_string); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5292 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5293 | if (self->marks) { |
| 5294 | free(self->marks); |
| 5295 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5296 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5297 | if (self->buf_size) { |
| 5298 | free(self->buf); |
| 5299 | } |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5300 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5301 | PyObject_Del(self); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5302 | } |
| 5303 | |
| 5304 | |
| 5305 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5306 | Unpickler_getattr(Unpicklerobject *self, char *name) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5307 | { |
| 5308 | if (!strcmp(name, "persistent_load")) { |
| 5309 | if (!self->pers_func) { |
| 5310 | PyErr_SetString(PyExc_AttributeError, name); |
| 5311 | return NULL; |
| 5312 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5313 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5314 | Py_INCREF(self->pers_func); |
| 5315 | return self->pers_func; |
| 5316 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5317 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5318 | if (!strcmp(name, "find_global")) { |
| 5319 | if (!self->find_class) { |
| 5320 | PyErr_SetString(PyExc_AttributeError, name); |
| 5321 | return NULL; |
| 5322 | } |
Guido van Rossum | 1b9e0aa | 1999-04-19 17:58:18 +0000 | [diff] [blame] | 5323 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5324 | Py_INCREF(self->find_class); |
| 5325 | return self->find_class; |
| 5326 | } |
Guido van Rossum | 1b9e0aa | 1999-04-19 17:58:18 +0000 | [diff] [blame] | 5327 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5328 | if (!strcmp(name, "memo")) { |
| 5329 | if (!self->memo) { |
| 5330 | PyErr_SetString(PyExc_AttributeError, name); |
| 5331 | return NULL; |
| 5332 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5333 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5334 | Py_INCREF(self->memo); |
| 5335 | return self->memo; |
| 5336 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5337 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5338 | if (!strcmp(name, "UnpicklingError")) { |
| 5339 | Py_INCREF(UnpicklingError); |
| 5340 | return UnpicklingError; |
| 5341 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5342 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5343 | return Py_FindMethod(Unpickler_methods, (PyObject *)self, name); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5344 | } |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5345 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5346 | |
| 5347 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5348 | Unpickler_setattr(Unpicklerobject *self, char *name, PyObject *value) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5349 | { |
Jeremy Hylton | ce616e4 | 1998-08-13 23:13:52 +0000 | [diff] [blame] | 5350 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5351 | if (!strcmp(name, "persistent_load")) { |
| 5352 | Py_XDECREF(self->pers_func); |
| 5353 | self->pers_func = value; |
| 5354 | Py_XINCREF(value); |
| 5355 | return 0; |
| 5356 | } |
Guido van Rossum | 1b9e0aa | 1999-04-19 17:58:18 +0000 | [diff] [blame] | 5357 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5358 | if (!strcmp(name, "find_global")) { |
| 5359 | Py_XDECREF(self->find_class); |
| 5360 | self->find_class = value; |
| 5361 | Py_XINCREF(value); |
| 5362 | return 0; |
| 5363 | } |
Guido van Rossum | 1b9e0aa | 1999-04-19 17:58:18 +0000 | [diff] [blame] | 5364 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5365 | if (! value) { |
| 5366 | PyErr_SetString(PyExc_TypeError, |
| 5367 | "attribute deletion is not supported"); |
| 5368 | return -1; |
| 5369 | } |
Jeremy Hylton | ce616e4 | 1998-08-13 23:13:52 +0000 | [diff] [blame] | 5370 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5371 | if (strcmp(name, "memo") == 0) { |
| 5372 | if (!PyDict_Check(value)) { |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5373 | PyErr_SetString(PyExc_TypeError, |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5374 | "memo must be a dictionary"); |
| 5375 | return -1; |
| 5376 | } |
| 5377 | Py_XDECREF(self->memo); |
| 5378 | self->memo = value; |
| 5379 | Py_INCREF(value); |
| 5380 | return 0; |
| 5381 | } |
Jeremy Hylton | ce616e4 | 1998-08-13 23:13:52 +0000 | [diff] [blame] | 5382 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5383 | PyErr_SetString(PyExc_AttributeError, name); |
| 5384 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5385 | } |
| 5386 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5387 | /* --------------------------------------------------------------------------- |
| 5388 | * Module-level functions. |
| 5389 | */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5390 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5391 | /* dump(obj, file, proto=0). */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5392 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5393 | cpm_dump(PyObject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5394 | { |
| 5395 | PyObject *ob, *file, *res = NULL; |
| 5396 | Picklerobject *pickler = 0; |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5397 | int proto = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5398 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5399 | if (!( PyArg_ParseTuple(args, "OO|i", &ob, &file, &proto))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5400 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5401 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5402 | if (!( pickler = newPicklerobject(file, proto))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5403 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5404 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5405 | if (dump(pickler, ob) < 0) |
| 5406 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5407 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5408 | Py_INCREF(Py_None); |
| 5409 | res = Py_None; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5410 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5411 | finally: |
| 5412 | Py_XDECREF(pickler); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5413 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5414 | return res; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5415 | } |
| 5416 | |
| 5417 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5418 | /* dumps(obj, proto=0). */ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5419 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5420 | cpm_dumps(PyObject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5421 | { |
| 5422 | PyObject *ob, *file = 0, *res = NULL; |
| 5423 | Picklerobject *pickler = 0; |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5424 | int proto = 0; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5425 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5426 | if (!( PyArg_ParseTuple(args, "O|i:dumps", &ob, &proto))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5427 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5428 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5429 | if (!( file = PycStringIO->NewOutput(128))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5430 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5431 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5432 | if (!( pickler = newPicklerobject(file, proto))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5433 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5434 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5435 | if (dump(pickler, ob) < 0) |
| 5436 | goto finally; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5437 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5438 | res = PycStringIO->cgetvalue(file); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5439 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5440 | finally: |
| 5441 | Py_XDECREF(pickler); |
| 5442 | Py_XDECREF(file); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5443 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5444 | return res; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5445 | } |
| 5446 | |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5447 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5448 | /* load(fileobj). */ |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5449 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5450 | cpm_load(PyObject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5451 | { |
| 5452 | Unpicklerobject *unpickler = 0; |
| 5453 | PyObject *ob, *res = NULL; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5454 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5455 | if (!( PyArg_ParseTuple(args, "O:load", &ob))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5456 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5457 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5458 | if (!( unpickler = newUnpicklerobject(ob))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5459 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5460 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5461 | res = load(unpickler); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5462 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5463 | finally: |
| 5464 | Py_XDECREF(unpickler); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5465 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5466 | return res; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5467 | } |
| 5468 | |
| 5469 | |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5470 | /* loads(string) */ |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5471 | static PyObject * |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5472 | cpm_loads(PyObject *self, PyObject *args) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5473 | { |
| 5474 | PyObject *ob, *file = 0, *res = NULL; |
| 5475 | Unpicklerobject *unpickler = 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5476 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5477 | if (!( PyArg_ParseTuple(args, "S:loads", &ob))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5478 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5479 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5480 | if (!( file = PycStringIO->NewInput(ob))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5481 | goto finally; |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5482 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5483 | if (!( unpickler = newUnpicklerobject(file))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5484 | goto finally; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5485 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5486 | res = load(unpickler); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5487 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5488 | finally: |
| 5489 | Py_XDECREF(file); |
| 5490 | Py_XDECREF(unpickler); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5491 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5492 | return res; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5493 | } |
| 5494 | |
| 5495 | |
Martin v. Löwis | 14f8b4c | 2002-06-13 20:33:02 +0000 | [diff] [blame] | 5496 | PyDoc_STRVAR(Unpicklertype__doc__, |
| 5497 | "Objects that know how to unpickle"); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5498 | |
Guido van Rossum | 9716aaa | 1997-12-08 15:15:16 +0000 | [diff] [blame] | 5499 | static PyTypeObject Unpicklertype = { |
| 5500 | PyObject_HEAD_INIT(NULL) |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5501 | 0, /*ob_size*/ |
Guido van Rossum | 1464839 | 2001-12-08 18:02:58 +0000 | [diff] [blame] | 5502 | "cPickle.Unpickler", /*tp_name*/ |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5503 | sizeof(Unpicklerobject), /*tp_basicsize*/ |
| 5504 | 0, /*tp_itemsize*/ |
| 5505 | /* methods */ |
| 5506 | (destructor)Unpickler_dealloc, /*tp_dealloc*/ |
| 5507 | (printfunc)0, /*tp_print*/ |
| 5508 | (getattrfunc)Unpickler_getattr, /*tp_getattr*/ |
| 5509 | (setattrfunc)Unpickler_setattr, /*tp_setattr*/ |
| 5510 | (cmpfunc)0, /*tp_compare*/ |
| 5511 | (reprfunc)0, /*tp_repr*/ |
| 5512 | 0, /*tp_as_number*/ |
| 5513 | 0, /*tp_as_sequence*/ |
| 5514 | 0, /*tp_as_mapping*/ |
| 5515 | (hashfunc)0, /*tp_hash*/ |
| 5516 | (ternaryfunc)0, /*tp_call*/ |
| 5517 | (reprfunc)0, /*tp_str*/ |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5518 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5519 | /* Space for future expansion */ |
| 5520 | 0L,0L,0L,0L, |
| 5521 | Unpicklertype__doc__ /* Documentation string */ |
Guido van Rossum | 9716aaa | 1997-12-08 15:15:16 +0000 | [diff] [blame] | 5522 | }; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5523 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5524 | static struct PyMethodDef cPickle_methods[] = { |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5525 | {"dump", (PyCFunction)cpm_dump, METH_VARARGS, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5526 | PyDoc_STR("dump(object, file, proto=0) -- " |
| 5527 | "Write an object in pickle format to the given file.\n" |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5528 | "\n" |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5529 | "See the Pickler docstring for the meaning of optional argument proto.") |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5530 | }, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5531 | |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5532 | {"dumps", (PyCFunction)cpm_dumps, METH_VARARGS, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5533 | PyDoc_STR("dumps(object, proto=0) -- " |
| 5534 | "Return a string containing an object in pickle format.\n" |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5535 | "\n" |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5536 | "See the Pickler docstring for the meaning of optional argument proto.") |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5537 | }, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5538 | |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5539 | {"load", (PyCFunction)cpm_load, METH_VARARGS, |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 5540 | PyDoc_STR("load(file) -- Load a pickle from the given file")}, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5541 | |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5542 | {"loads", (PyCFunction)cpm_loads, METH_VARARGS, |
Neal Norwitz | 200788c | 2002-08-13 22:20:41 +0000 | [diff] [blame] | 5543 | PyDoc_STR("loads(string) -- Load a pickle from the given string")}, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5544 | |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5545 | {"Pickler", (PyCFunction)get_Pickler, METH_VARARGS, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5546 | PyDoc_STR("Pickler(file, proto=0) -- Create a pickler.\n" |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5547 | "\n" |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5548 | "This takes a file-like object for writing a pickle data stream.\n" |
| 5549 | "The optional proto argument tells the pickler to use the given\n" |
| 5550 | "protocol; supported protocols are 0, 1, 2. The default\n" |
| 5551 | "protocol is 0, to be backwards compatible. (Protocol 0 is the\n" |
| 5552 | "only protocol that can be written to a file opened in text\n" |
| 5553 | "mode and read back successfully. When using a protocol higher\n" |
| 5554 | "than 0, make sure the file is opened in binary mode, both when\n" |
| 5555 | "pickling and unpickling.)\n" |
| 5556 | "\n" |
| 5557 | "Protocol 1 is more efficient than protocol 0; protocol 2 is\n" |
| 5558 | "more efficient than protocol 1.\n" |
| 5559 | "\n" |
| 5560 | "Specifying a negative protocol version selects the highest\n" |
| 5561 | "protocol version supported. The higher the protocol used, the\n" |
| 5562 | "more recent the version of Python needed to read the pickle\n" |
| 5563 | "produced.\n" |
| 5564 | "\n" |
| 5565 | "The file parameter must have a write() method that accepts a single\n" |
| 5566 | "string argument. It can thus be an open file object, a StringIO\n" |
| 5567 | "object, or any other custom object that meets this interface.\n") |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5568 | }, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5569 | |
Neal Norwitz | b049325 | 2002-03-31 14:44:22 +0000 | [diff] [blame] | 5570 | {"Unpickler", (PyCFunction)get_Unpickler, METH_VARARGS, |
Tim Peters | 5bd2a79 | 2003-02-01 16:45:06 +0000 | [diff] [blame] | 5571 | PyDoc_STR("Unpickler(file) -- Create an unpickler.")}, |
| 5572 | |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5573 | { NULL, NULL } |
| 5574 | }; |
| 5575 | |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5576 | static int |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5577 | init_stuff(PyObject *module_dict) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5578 | { |
| 5579 | PyObject *copy_reg, *t, *r; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5580 | |
Martin v. Löwis | 43c9d8a | 2002-04-01 12:34:33 +0000 | [diff] [blame] | 5581 | #define INIT_STR(S) if (!( S ## _str=PyString_InternFromString(#S))) return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5582 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5583 | INIT_STR(__class__); |
| 5584 | INIT_STR(__getinitargs__); |
| 5585 | INIT_STR(__dict__); |
| 5586 | INIT_STR(__getstate__); |
| 5587 | INIT_STR(__setstate__); |
| 5588 | INIT_STR(__name__); |
| 5589 | INIT_STR(__main__); |
| 5590 | INIT_STR(__reduce__); |
| 5591 | INIT_STR(write); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5592 | INIT_STR(append); |
| 5593 | INIT_STR(read); |
| 5594 | INIT_STR(readline); |
| 5595 | INIT_STR(copy_reg); |
| 5596 | INIT_STR(dispatch_table); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5597 | INIT_STR(__basicnew__); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5598 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5599 | if (!( copy_reg = PyImport_ImportModule("copy_reg"))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5600 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5601 | |
Tim Peters | 1f1b2d2 | 2003-02-01 02:16:37 +0000 | [diff] [blame] | 5602 | /* This is special because we want to use a different |
| 5603 | one in restricted mode. */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5604 | dispatch_table = PyObject_GetAttr(copy_reg, dispatch_table_str); |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5605 | if (!dispatch_table) return -1; |
| 5606 | |
| 5607 | extension_registry = PyObject_GetAttrString(copy_reg, |
Guido van Rossum | d4b920c | 2003-02-04 01:54:49 +0000 | [diff] [blame] | 5608 | "_extension_registry"); |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5609 | if (!extension_registry) return -1; |
| 5610 | |
| 5611 | inverted_registry = PyObject_GetAttrString(copy_reg, |
Guido van Rossum | d4b920c | 2003-02-04 01:54:49 +0000 | [diff] [blame] | 5612 | "_inverted_registry"); |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5613 | if (!inverted_registry) return -1; |
| 5614 | |
| 5615 | extension_cache = PyObject_GetAttrString(copy_reg, |
Guido van Rossum | d4b920c | 2003-02-04 01:54:49 +0000 | [diff] [blame] | 5616 | "_extension_cache"); |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5617 | if (!extension_cache) return -1; |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5618 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 5619 | better_reduce = PyObject_GetAttrString(copy_reg, "_better_reduce"); |
| 5620 | if (!better_reduce) return -1; |
| 5621 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5622 | Py_DECREF(copy_reg); |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5623 | |
Tim Peters | 71fcda5 | 2003-02-14 23:05:28 +0000 | [diff] [blame] | 5624 | object_reduce = PyObject_GetAttrString((PyObject *)&PyBaseObject_Type, |
| 5625 | "__reduce__"); |
| 5626 | if (object_reduce == NULL) return -1; |
| 5627 | |
Tim Peters | 731098b | 2003-02-04 20:56:09 +0000 | [diff] [blame] | 5628 | if (!(empty_tuple = PyTuple_New(0))) |
| 5629 | return -1; |
| 5630 | |
| 5631 | two_tuple = PyTuple_New(2); |
| 5632 | if (two_tuple == NULL) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5633 | return -1; |
Tim Peters | 3e667d5 | 2003-02-04 21:47:44 +0000 | [diff] [blame] | 5634 | /* We use this temp container with no regard to refcounts, or to |
| 5635 | * keeping containees alive. Exempt from GC, because we don't |
| 5636 | * want anything looking at two_tuple() by magic. |
| 5637 | */ |
| 5638 | PyObject_GC_UnTrack(two_tuple); |
Guido van Rossum | fdde96c | 1997-12-04 01:13:01 +0000 | [diff] [blame] | 5639 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5640 | /* Ugh */ |
| 5641 | if (!( t=PyImport_ImportModule("__builtin__"))) return -1; |
| 5642 | if (PyDict_SetItemString(module_dict, "__builtins__", t) < 0) |
| 5643 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5644 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5645 | if (!( t=PyDict_New())) return -1; |
| 5646 | if (!( r=PyRun_String( |
| 5647 | "def __init__(self, *args): self.args=args\n\n" |
| 5648 | "def __str__(self):\n" |
| 5649 | " return self.args and ('%s' % self.args[0]) or '(what)'\n", |
| 5650 | Py_file_input, |
| 5651 | module_dict, t) )) return -1; |
| 5652 | Py_DECREF(r); |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5653 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5654 | PickleError = PyErr_NewException("cPickle.PickleError", NULL, t); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5655 | if (!PickleError) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5656 | return -1; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5657 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5658 | Py_DECREF(t); |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5659 | |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5660 | PicklingError = PyErr_NewException("cPickle.PicklingError", |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5661 | PickleError, NULL); |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5662 | if (!PicklingError) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5663 | return -1; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5664 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5665 | if (!( t=PyDict_New())) return -1; |
| 5666 | if (!( r=PyRun_String( |
| 5667 | "def __init__(self, *args): self.args=args\n\n" |
| 5668 | "def __str__(self):\n" |
| 5669 | " a=self.args\n" |
| 5670 | " a=a and type(a[0]) or '(what)'\n" |
| 5671 | " return 'Cannot pickle %s objects' % a\n" |
| 5672 | , Py_file_input, |
| 5673 | module_dict, t) )) return -1; |
| 5674 | Py_DECREF(r); |
Tim Peters | 84e87f3 | 2001-03-17 04:50:51 +0000 | [diff] [blame] | 5675 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5676 | if (!( UnpickleableError = PyErr_NewException( |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5677 | "cPickle.UnpickleableError", PicklingError, t))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5678 | return -1; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5679 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5680 | Py_DECREF(t); |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5681 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5682 | if (!( UnpicklingError = PyErr_NewException("cPickle.UnpicklingError", |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5683 | PickleError, NULL))) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5684 | return -1; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5685 | |
Martin v. Löwis | 658009a | 2002-09-16 17:26:24 +0000 | [diff] [blame] | 5686 | if (!( BadPickleGet = PyErr_NewException("cPickle.BadPickleGet", |
| 5687 | UnpicklingError, NULL))) |
| 5688 | return -1; |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5689 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5690 | if (PyDict_SetItemString(module_dict, "PickleError", |
| 5691 | PickleError) < 0) |
| 5692 | return -1; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5693 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5694 | if (PyDict_SetItemString(module_dict, "PicklingError", |
| 5695 | PicklingError) < 0) |
| 5696 | return -1; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5697 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5698 | if (PyDict_SetItemString(module_dict, "UnpicklingError", |
| 5699 | UnpicklingError) < 0) |
| 5700 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5701 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5702 | if (PyDict_SetItemString(module_dict, "UnpickleableError", |
| 5703 | UnpickleableError) < 0) |
| 5704 | return -1; |
Guido van Rossum | 60456fd | 1997-04-09 17:36:32 +0000 | [diff] [blame] | 5705 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5706 | if (PyDict_SetItemString(module_dict, "BadPickleGet", |
| 5707 | BadPickleGet) < 0) |
| 5708 | return -1; |
Guido van Rossum | c03158b | 1999-06-09 15:23:31 +0000 | [diff] [blame] | 5709 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5710 | PycString_IMPORT; |
Guido van Rossum | 053b8df | 1998-11-25 16:18:00 +0000 | [diff] [blame] | 5711 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5712 | return 0; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5713 | } |
| 5714 | |
Mark Hammond | fe51c6d | 2002-08-02 02:27:13 +0000 | [diff] [blame] | 5715 | #ifndef PyMODINIT_FUNC /* declarations for DLL import/export */ |
| 5716 | #define PyMODINIT_FUNC void |
Guido van Rossum | f9ffb03 | 1999-02-04 14:54:04 +0000 | [diff] [blame] | 5717 | #endif |
Mark Hammond | fe51c6d | 2002-08-02 02:27:13 +0000 | [diff] [blame] | 5718 | PyMODINIT_FUNC |
Tim Peters | cba30e2 | 2003-02-01 06:24:36 +0000 | [diff] [blame] | 5719 | initcPickle(void) |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5720 | { |
| 5721 | PyObject *m, *d, *di, *v, *k; |
| 5722 | int i; |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5723 | char *rev = "1.71"; /* XXX when does this change? */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5724 | PyObject *format_version; |
| 5725 | PyObject *compatible_formats; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5726 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5727 | Picklertype.ob_type = &PyType_Type; |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5728 | Unpicklertype.ob_type = &PyType_Type; |
| 5729 | PdataType.ob_type = &PyType_Type; |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5730 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5731 | /* Initialize some pieces. We need to do this before module creation, |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5732 | * so we're forced to use a temporary dictionary. :( |
| 5733 | */ |
| 5734 | di = PyDict_New(); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5735 | if (!di) return; |
| 5736 | if (init_stuff(di) < 0) return; |
Guido van Rossum | ebba420 | 2000-09-07 14:35:37 +0000 | [diff] [blame] | 5737 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5738 | /* Create the module and add the functions */ |
| 5739 | m = Py_InitModule4("cPickle", cPickle_methods, |
| 5740 | cPickle_module_documentation, |
| 5741 | (PyObject*)NULL,PYTHON_API_VERSION); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5742 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5743 | /* Add some symbolic constants to the module */ |
| 5744 | d = PyModule_GetDict(m); |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5745 | v = PyString_FromString(rev); |
| 5746 | PyDict_SetItemString(d, "__version__", v); |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5747 | Py_XDECREF(v); |
Barry Warsaw | 93d29b6 | 1997-01-14 17:45:08 +0000 | [diff] [blame] | 5748 | |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5749 | /* Copy data from di. Waaa. */ |
| 5750 | for (i=0; PyDict_Next(di, &i, &k, &v); ) { |
| 5751 | if (PyObject_SetItem(d, k, v) < 0) { |
| 5752 | Py_DECREF(di); |
| 5753 | return; |
| 5754 | } |
| 5755 | } |
| 5756 | Py_DECREF(di); |
Guido van Rossum | ebba420 | 2000-09-07 14:35:37 +0000 | [diff] [blame] | 5757 | |
Tim Peters | 8587b3c | 2003-02-13 15:44:41 +0000 | [diff] [blame] | 5758 | i = PyModule_AddIntConstant(m, "HIGHEST_PROTOCOL", HIGHEST_PROTOCOL); |
| 5759 | if (i < 0) |
| 5760 | return; |
| 5761 | |
Tim Peters | 5b7da39 | 2003-02-04 00:21:07 +0000 | [diff] [blame] | 5762 | /* These are purely informational; no code uses them. */ |
| 5763 | /* File format version we write. */ |
| 5764 | format_version = PyString_FromString("2.0"); |
| 5765 | /* Format versions we can read. */ |
| 5766 | compatible_formats = Py_BuildValue("[sssss]", |
| 5767 | "1.0", /* Original protocol 0 */ |
| 5768 | "1.1", /* Protocol 0 + INST */ |
| 5769 | "1.2", /* Original protocol 1 */ |
| 5770 | "1.3", /* Protocol 1 + BINFLOAT */ |
Tim Peters | 0dd23aa | 2003-02-04 00:30:46 +0000 | [diff] [blame] | 5771 | "2.0"); /* Original protocol 2 */ |
Martin v. Löwis | 2f6ef4c | 2002-04-01 17:40:08 +0000 | [diff] [blame] | 5772 | PyDict_SetItemString(d, "format_version", format_version); |
| 5773 | PyDict_SetItemString(d, "compatible_formats", compatible_formats); |
| 5774 | Py_XDECREF(format_version); |
| 5775 | Py_XDECREF(compatible_formats); |
Guido van Rossum | 2f4caa4 | 1997-01-06 22:59:08 +0000 | [diff] [blame] | 5776 | } |