Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 2 | Copyright (c) 2000, BeOpen.com. |
| 3 | Copyright (c) 1995-2000, Corporation for National Research Initiatives. |
| 4 | Copyright (c) 1990-1995, Stichting Mathematisch Centrum. |
| 5 | All rights reserved. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 6 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 7 | See the file "Misc/COPYRIGHT" for information on usage and |
| 8 | redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 9 | ******************************************************************/ |
| 10 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 11 | /* Tuple object implementation */ |
| 12 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 13 | #include "Python.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 14 | |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 15 | /* Speed optimization to avoid frequent malloc/free of small tuples */ |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 16 | #ifndef MAXSAVESIZE |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 17 | #define MAXSAVESIZE 20 /* Largest tuple to save on free list */ |
| 18 | #endif |
| 19 | #ifndef MAXSAVEDTUPLES |
| 20 | #define MAXSAVEDTUPLES 2000 /* Maximum number of tuples of each size to save */ |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 21 | #endif |
| 22 | |
| 23 | #if MAXSAVESIZE > 0 |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 24 | /* Entries 1 up to MAXSAVESIZE are free lists, entry 0 is the empty |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 25 | tuple () of which at most one instance will be allocated. |
| 26 | */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 27 | static PyTupleObject *free_tuples[MAXSAVESIZE]; |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 28 | static int num_free_tuples[MAXSAVESIZE]; |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 29 | #endif |
| 30 | #ifdef COUNT_ALLOCS |
| 31 | int fast_tuple_allocs; |
| 32 | int tuple_zero_allocs; |
| 33 | #endif |
| 34 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 35 | PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 36 | PyTuple_New(register int size) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 37 | { |
| 38 | register int i; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 39 | register PyTupleObject *op; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 40 | if (size < 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 41 | PyErr_BadInternalCall(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 42 | return NULL; |
| 43 | } |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 44 | #if MAXSAVESIZE > 0 |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 45 | if (size == 0 && free_tuples[0]) { |
| 46 | op = free_tuples[0]; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 47 | Py_INCREF(op); |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 48 | #ifdef COUNT_ALLOCS |
| 49 | tuple_zero_allocs++; |
| 50 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 51 | return (PyObject *) op; |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 52 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 53 | if (0 < size && size < MAXSAVESIZE && |
| 54 | (op = free_tuples[size]) != NULL) |
| 55 | { |
| 56 | free_tuples[size] = (PyTupleObject *) op->ob_item[0]; |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 57 | num_free_tuples[size]--; |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 58 | #ifdef COUNT_ALLOCS |
| 59 | fast_tuple_allocs++; |
| 60 | #endif |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 61 | /* PyObject_InitVar is inlined */ |
Guido van Rossum | 68055ce | 1998-12-11 14:56:38 +0000 | [diff] [blame] | 62 | #ifdef Py_TRACE_REFS |
Guido van Rossum | 68055ce | 1998-12-11 14:56:38 +0000 | [diff] [blame] | 63 | op->ob_size = size; |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 64 | op->ob_type = &PyTuple_Type; |
Guido van Rossum | 68055ce | 1998-12-11 14:56:38 +0000 | [diff] [blame] | 65 | #endif |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 66 | _Py_NewReference((PyObject *)op); |
Guido van Rossum | fbbd57e | 1997-08-05 02:16:08 +0000 | [diff] [blame] | 67 | } |
| 68 | else |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 69 | #endif |
| 70 | { |
Guido van Rossum | 5bc51f2 | 1999-07-12 23:06:58 +0000 | [diff] [blame] | 71 | int nbytes = size * sizeof(PyObject *); |
| 72 | /* Check for overflow */ |
| 73 | if (nbytes / sizeof(PyObject *) != (size_t)size || |
Jeremy Hylton | d08b4c4 | 2000-06-23 19:37:02 +0000 | [diff] [blame] | 74 | (nbytes += sizeof(PyTupleObject) - sizeof(PyObject *) |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 75 | + PyGC_HEAD_SIZE) |
Guido van Rossum | 5bc51f2 | 1999-07-12 23:06:58 +0000 | [diff] [blame] | 76 | <= 0) |
| 77 | { |
| 78 | return PyErr_NoMemory(); |
| 79 | } |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 80 | /* PyObject_NewVar is inlined */ |
| 81 | op = (PyTupleObject *) PyObject_MALLOC(nbytes); |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 82 | if (op == NULL) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 83 | return PyErr_NoMemory(); |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 84 | op = (PyTupleObject *) PyObject_FROM_GC(op); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 85 | PyObject_INIT_VAR(op, &PyTuple_Type, size); |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 86 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 87 | for (i = 0; i < size; i++) |
| 88 | op->ob_item[i] = NULL; |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 89 | #if MAXSAVESIZE > 0 |
| 90 | if (size == 0) { |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 91 | free_tuples[0] = op; |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 92 | ++num_free_tuples[0]; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 93 | Py_INCREF(op); /* extra INCREF so that this is never freed */ |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 94 | } |
| 95 | #endif |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 96 | PyObject_GC_Init(op); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 97 | return (PyObject *) op; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 101 | PyTuple_Size(register PyObject *op) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 102 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 103 | if (!PyTuple_Check(op)) { |
| 104 | PyErr_BadInternalCall(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 105 | return -1; |
| 106 | } |
| 107 | else |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 108 | return ((PyTupleObject *)op)->ob_size; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 109 | } |
| 110 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 111 | PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 112 | PyTuple_GetItem(register PyObject *op, register int i) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 113 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 114 | if (!PyTuple_Check(op)) { |
| 115 | PyErr_BadInternalCall(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 116 | return NULL; |
| 117 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 118 | if (i < 0 || i >= ((PyTupleObject *)op) -> ob_size) { |
| 119 | PyErr_SetString(PyExc_IndexError, "tuple index out of range"); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 120 | return NULL; |
| 121 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 122 | return ((PyTupleObject *)op) -> ob_item[i]; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 126 | PyTuple_SetItem(register PyObject *op, register int i, PyObject *newitem) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 127 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 128 | register PyObject *olditem; |
| 129 | register PyObject **p; |
Guido van Rossum | 787bdd3 | 1997-08-17 16:25:45 +0000 | [diff] [blame] | 130 | if (!PyTuple_Check(op) || op->ob_refcnt != 1) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 131 | Py_XDECREF(newitem); |
| 132 | PyErr_BadInternalCall(); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 133 | return -1; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 134 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 135 | if (i < 0 || i >= ((PyTupleObject *)op) -> ob_size) { |
| 136 | Py_XDECREF(newitem); |
| 137 | PyErr_SetString(PyExc_IndexError, |
| 138 | "tuple assignment index out of range"); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 139 | return -1; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 140 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 141 | p = ((PyTupleObject *)op) -> ob_item + i; |
Guido van Rossum | 5fe6058 | 1995-03-09 12:12:50 +0000 | [diff] [blame] | 142 | olditem = *p; |
| 143 | *p = newitem; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 144 | Py_XDECREF(olditem); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 145 | return 0; |
| 146 | } |
| 147 | |
| 148 | /* Methods */ |
| 149 | |
| 150 | static void |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 151 | tupledealloc(register PyTupleObject *op) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 152 | { |
| 153 | register int i; |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 154 | register int len = op->ob_size; |
Guido van Rossum | d724b23 | 2000-03-13 16:01:29 +0000 | [diff] [blame] | 155 | Py_TRASHCAN_SAFE_BEGIN(op) |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 156 | PyObject_GC_Fini(op); |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 157 | if (len > 0) { |
| 158 | i = len; |
Guido van Rossum | 1bb2687 | 1998-06-26 15:53:50 +0000 | [diff] [blame] | 159 | while (--i >= 0) |
| 160 | Py_XDECREF(op->ob_item[i]); |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 161 | #if MAXSAVESIZE > 0 |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 162 | if (len < MAXSAVESIZE && num_free_tuples[len] < MAXSAVEDTUPLES) { |
| 163 | op->ob_item[0] = (PyObject *) free_tuples[len]; |
| 164 | num_free_tuples[len]++; |
| 165 | free_tuples[len] = op; |
Guido van Rossum | d724b23 | 2000-03-13 16:01:29 +0000 | [diff] [blame] | 166 | goto done; /* return */ |
Guido van Rossum | 1bb2687 | 1998-06-26 15:53:50 +0000 | [diff] [blame] | 167 | } |
Sjoerd Mullender | 842d2cc | 1993-10-15 16:18:48 +0000 | [diff] [blame] | 168 | #endif |
Guido van Rossum | 1bb2687 | 1998-06-26 15:53:50 +0000 | [diff] [blame] | 169 | } |
Guido van Rossum | 4cc6ac7 | 2000-07-01 01:00:38 +0000 | [diff] [blame] | 170 | op = (PyTupleObject *) PyObject_AS_GC(op); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 171 | PyObject_DEL(op); |
Guido van Rossum | d724b23 | 2000-03-13 16:01:29 +0000 | [diff] [blame] | 172 | done: |
| 173 | Py_TRASHCAN_SAFE_END(op) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 174 | } |
| 175 | |
Guido van Rossum | 49e8514 | 1991-06-07 22:59:30 +0000 | [diff] [blame] | 176 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 177 | tupleprint(PyTupleObject *op, FILE *fp, int flags) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 178 | { |
| 179 | int i; |
| 180 | fprintf(fp, "("); |
Guido van Rossum | 49e8514 | 1991-06-07 22:59:30 +0000 | [diff] [blame] | 181 | for (i = 0; i < op->ob_size; i++) { |
| 182 | if (i > 0) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 183 | fprintf(fp, ", "); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 184 | if (PyObject_Print(op->ob_item[i], fp, 0) != 0) |
Guido van Rossum | 49e8514 | 1991-06-07 22:59:30 +0000 | [diff] [blame] | 185 | return -1; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 186 | } |
| 187 | if (op->ob_size == 1) |
| 188 | fprintf(fp, ","); |
| 189 | fprintf(fp, ")"); |
Guido van Rossum | 49e8514 | 1991-06-07 22:59:30 +0000 | [diff] [blame] | 190 | return 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 191 | } |
| 192 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 193 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 194 | tuplerepr(PyTupleObject *v) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 195 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 196 | PyObject *s, *comma; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 197 | int i; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 198 | s = PyString_FromString("("); |
| 199 | comma = PyString_FromString(", "); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 200 | for (i = 0; i < v->ob_size && s != NULL; i++) { |
| 201 | if (i > 0) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 202 | PyString_Concat(&s, comma); |
| 203 | PyString_ConcatAndDel(&s, PyObject_Repr(v->ob_item[i])); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 204 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 205 | Py_DECREF(comma); |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 206 | if (v->ob_size == 1) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 207 | PyString_ConcatAndDel(&s, PyString_FromString(",")); |
| 208 | PyString_ConcatAndDel(&s, PyString_FromString(")")); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 209 | return s; |
| 210 | } |
| 211 | |
| 212 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 213 | tuplecompare(register PyTupleObject *v, register PyTupleObject *w) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 214 | { |
| 215 | register int len = |
| 216 | (v->ob_size < w->ob_size) ? v->ob_size : w->ob_size; |
| 217 | register int i; |
| 218 | for (i = 0; i < len; i++) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 219 | int cmp = PyObject_Compare(v->ob_item[i], w->ob_item[i]); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 220 | if (cmp != 0) |
| 221 | return cmp; |
| 222 | } |
| 223 | return v->ob_size - w->ob_size; |
| 224 | } |
| 225 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 226 | static long |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 227 | tuplehash(PyTupleObject *v) |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 228 | { |
| 229 | register long x, y; |
| 230 | register int len = v->ob_size; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 231 | register PyObject **p; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 232 | x = 0x345678L; |
| 233 | p = v->ob_item; |
| 234 | while (--len >= 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 235 | y = PyObject_Hash(*p++); |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 236 | if (y == -1) |
| 237 | return -1; |
Guido van Rossum | 0969ad2 | 1996-12-16 17:55:46 +0000 | [diff] [blame] | 238 | x = (1000003*x) ^ y; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 239 | } |
| 240 | x ^= v->ob_size; |
| 241 | if (x == -1) |
| 242 | x = -2; |
| 243 | return x; |
| 244 | } |
| 245 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 246 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 247 | tuplelength(PyTupleObject *a) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 248 | { |
| 249 | return a->ob_size; |
| 250 | } |
| 251 | |
Jeremy Hylton | 37b1a26 | 2000-04-27 21:41:03 +0000 | [diff] [blame] | 252 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 253 | tuplecontains(PyTupleObject *a, PyObject *el) |
Jeremy Hylton | 37b1a26 | 2000-04-27 21:41:03 +0000 | [diff] [blame] | 254 | { |
| 255 | int i, cmp; |
| 256 | |
| 257 | for (i = 0; i < a->ob_size; ++i) { |
| 258 | cmp = PyObject_Compare(el, PyTuple_GET_ITEM(a, i)); |
| 259 | if (cmp == 0) |
| 260 | return 1; |
| 261 | if (PyErr_Occurred()) |
| 262 | return -1; |
| 263 | } |
| 264 | return 0; |
| 265 | } |
| 266 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 267 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 268 | tupleitem(register PyTupleObject *a, register int i) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 269 | { |
| 270 | if (i < 0 || i >= a->ob_size) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 271 | PyErr_SetString(PyExc_IndexError, "tuple index out of range"); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 272 | return NULL; |
| 273 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 274 | Py_INCREF(a->ob_item[i]); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 275 | return a->ob_item[i]; |
| 276 | } |
| 277 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 278 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 279 | tupleslice(register PyTupleObject *a, register int ilow, register int ihigh) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 280 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 281 | register PyTupleObject *np; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 282 | register int i; |
| 283 | if (ilow < 0) |
| 284 | ilow = 0; |
| 285 | if (ihigh > a->ob_size) |
| 286 | ihigh = a->ob_size; |
| 287 | if (ihigh < ilow) |
| 288 | ihigh = ilow; |
| 289 | if (ilow == 0 && ihigh == a->ob_size) { |
| 290 | /* XXX can only do this if tuples are immutable! */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 291 | Py_INCREF(a); |
| 292 | return (PyObject *)a; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 293 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 294 | np = (PyTupleObject *)PyTuple_New(ihigh - ilow); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 295 | if (np == NULL) |
| 296 | return NULL; |
| 297 | for (i = ilow; i < ihigh; i++) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 298 | PyObject *v = a->ob_item[i]; |
| 299 | Py_INCREF(v); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 300 | np->ob_item[i - ilow] = v; |
| 301 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 302 | return (PyObject *)np; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 303 | } |
| 304 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 305 | PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 306 | PyTuple_GetSlice(PyObject *op, int i, int j) |
Guido van Rossum | 7c36ad7 | 1992-01-14 18:45:33 +0000 | [diff] [blame] | 307 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 308 | if (op == NULL || !PyTuple_Check(op)) { |
| 309 | PyErr_BadInternalCall(); |
Guido van Rossum | 7c36ad7 | 1992-01-14 18:45:33 +0000 | [diff] [blame] | 310 | return NULL; |
| 311 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 312 | return tupleslice((PyTupleObject *)op, i, j); |
Guido van Rossum | 7c36ad7 | 1992-01-14 18:45:33 +0000 | [diff] [blame] | 313 | } |
| 314 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 315 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 316 | tupleconcat(register PyTupleObject *a, register PyObject *bb) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 317 | { |
| 318 | register int size; |
| 319 | register int i; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 320 | PyTupleObject *np; |
| 321 | if (!PyTuple_Check(bb)) { |
Fred Drake | b6a9ada | 2000-06-01 03:12:13 +0000 | [diff] [blame] | 322 | PyErr_Format(PyExc_TypeError, |
Marc-André Lemburg | 29dc381 | 2000-06-16 17:05:57 +0000 | [diff] [blame] | 323 | "can only concatenate tuple (not \"%.200s\") to tuple", |
Fred Drake | b6a9ada | 2000-06-01 03:12:13 +0000 | [diff] [blame] | 324 | bb->ob_type->tp_name); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 325 | return NULL; |
| 326 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 327 | #define b ((PyTupleObject *)bb) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 328 | size = a->ob_size + b->ob_size; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 329 | np = (PyTupleObject *) PyTuple_New(size); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 330 | if (np == NULL) { |
Guido van Rossum | 49e8514 | 1991-06-07 22:59:30 +0000 | [diff] [blame] | 331 | return NULL; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 332 | } |
| 333 | for (i = 0; i < a->ob_size; i++) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 334 | PyObject *v = a->ob_item[i]; |
| 335 | Py_INCREF(v); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 336 | np->ob_item[i] = v; |
| 337 | } |
| 338 | for (i = 0; i < b->ob_size; i++) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 339 | PyObject *v = b->ob_item[i]; |
| 340 | Py_INCREF(v); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 341 | np->ob_item[i + a->ob_size] = v; |
| 342 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 343 | return (PyObject *)np; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 344 | #undef b |
| 345 | } |
| 346 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 347 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 348 | tuplerepeat(PyTupleObject *a, int n) |
Guido van Rossum | b8393da | 1991-06-04 19:35:24 +0000 | [diff] [blame] | 349 | { |
| 350 | int i, j; |
| 351 | int size; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 352 | PyTupleObject *np; |
| 353 | PyObject **p; |
Guido van Rossum | b8393da | 1991-06-04 19:35:24 +0000 | [diff] [blame] | 354 | if (n < 0) |
| 355 | n = 0; |
Guido van Rossum | 5bc51f2 | 1999-07-12 23:06:58 +0000 | [diff] [blame] | 356 | if (a->ob_size == 0 || n == 1) { |
Guido van Rossum | b8393da | 1991-06-04 19:35:24 +0000 | [diff] [blame] | 357 | /* Since tuples are immutable, we can return a shared |
| 358 | copy in this case */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 359 | Py_INCREF(a); |
| 360 | return (PyObject *)a; |
Guido van Rossum | b8393da | 1991-06-04 19:35:24 +0000 | [diff] [blame] | 361 | } |
| 362 | size = a->ob_size * n; |
Guido van Rossum | 0eb55ac | 1999-07-13 05:41:12 +0000 | [diff] [blame] | 363 | if (size/a->ob_size != n) |
Guido van Rossum | 5bc51f2 | 1999-07-12 23:06:58 +0000 | [diff] [blame] | 364 | return PyErr_NoMemory(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 365 | np = (PyTupleObject *) PyTuple_New(size); |
Guido van Rossum | b8393da | 1991-06-04 19:35:24 +0000 | [diff] [blame] | 366 | if (np == NULL) |
| 367 | return NULL; |
| 368 | p = np->ob_item; |
| 369 | for (i = 0; i < n; i++) { |
| 370 | for (j = 0; j < a->ob_size; j++) { |
| 371 | *p = a->ob_item[j]; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 372 | Py_INCREF(*p); |
Guido van Rossum | b8393da | 1991-06-04 19:35:24 +0000 | [diff] [blame] | 373 | p++; |
| 374 | } |
| 375 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 376 | return (PyObject *) np; |
Guido van Rossum | b8393da | 1991-06-04 19:35:24 +0000 | [diff] [blame] | 377 | } |
| 378 | |
Jeremy Hylton | 8caad49 | 2000-06-23 14:18:11 +0000 | [diff] [blame] | 379 | static int |
| 380 | tupletraverse(PyTupleObject *o, visitproc visit, void *arg) |
| 381 | { |
| 382 | int i, err; |
| 383 | PyObject *x; |
| 384 | |
| 385 | for (i = o->ob_size; --i >= 0; ) { |
| 386 | x = o->ob_item[i]; |
| 387 | if (x != NULL) { |
| 388 | err = visit(x, arg); |
| 389 | if (err) |
| 390 | return err; |
| 391 | } |
| 392 | } |
| 393 | return 0; |
| 394 | } |
| 395 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 396 | static PySequenceMethods tuple_as_sequence = { |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 397 | (inquiry)tuplelength, /*sq_length*/ |
| 398 | (binaryfunc)tupleconcat, /*sq_concat*/ |
| 399 | (intargfunc)tuplerepeat, /*sq_repeat*/ |
| 400 | (intargfunc)tupleitem, /*sq_item*/ |
| 401 | (intintargfunc)tupleslice, /*sq_slice*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 402 | 0, /*sq_ass_item*/ |
| 403 | 0, /*sq_ass_slice*/ |
Jeremy Hylton | 37b1a26 | 2000-04-27 21:41:03 +0000 | [diff] [blame] | 404 | (objobjproc)tuplecontains, /*sq_contains*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 405 | }; |
| 406 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 407 | PyTypeObject PyTuple_Type = { |
| 408 | PyObject_HEAD_INIT(&PyType_Type) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 409 | 0, |
| 410 | "tuple", |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 411 | sizeof(PyTupleObject) - sizeof(PyObject *) + PyGC_HEAD_SIZE, |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 412 | sizeof(PyObject *), |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 413 | (destructor)tupledealloc, /*tp_dealloc*/ |
| 414 | (printfunc)tupleprint, /*tp_print*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 415 | 0, /*tp_getattr*/ |
| 416 | 0, /*tp_setattr*/ |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 417 | (cmpfunc)tuplecompare, /*tp_compare*/ |
| 418 | (reprfunc)tuplerepr, /*tp_repr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 419 | 0, /*tp_as_number*/ |
| 420 | &tuple_as_sequence, /*tp_as_sequence*/ |
| 421 | 0, /*tp_as_mapping*/ |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 422 | (hashfunc)tuplehash, /*tp_hash*/ |
Fred Drake | 5678025 | 2000-06-15 14:50:20 +0000 | [diff] [blame] | 423 | 0, /*tp_call*/ |
| 424 | 0, /*tp_str*/ |
| 425 | 0, /*tp_getattro*/ |
| 426 | 0, /*tp_setattro*/ |
| 427 | 0, /*tp_as_buffer*/ |
Jeremy Hylton | d08b4c4 | 2000-06-23 19:37:02 +0000 | [diff] [blame] | 428 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC, /*tp_flags*/ |
Jeremy Hylton | 8caad49 | 2000-06-23 14:18:11 +0000 | [diff] [blame] | 429 | 0, /*tp_doc*/ |
| 430 | (traverseproc)tupletraverse, /* tp_traverse */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 431 | }; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 432 | |
| 433 | /* The following function breaks the notion that tuples are immutable: |
| 434 | it changes the size of a tuple. We get away with this only if there |
| 435 | is only one module referencing the object. You can also think of it |
| 436 | as creating a new tuple object and destroying the old one, only |
| 437 | more efficiently. In any case, don't use this if the tuple may |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 438 | already be known to some other part of the code... |
| 439 | If last_is_sticky is set, the tuple will grow or shrink at the |
| 440 | front, otherwise it will grow or shrink at the end. */ |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 441 | |
| 442 | int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 443 | _PyTuple_Resize(PyObject **pv, int newsize, int last_is_sticky) |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 444 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 445 | register PyTupleObject *v; |
| 446 | register PyTupleObject *sv; |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 447 | int i; |
| 448 | int sizediff; |
| 449 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 450 | v = (PyTupleObject *) *pv; |
| 451 | if (v == NULL || !PyTuple_Check(v) || v->ob_refcnt != 1) { |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 452 | *pv = 0; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 453 | Py_DECREF(v); |
| 454 | PyErr_BadInternalCall(); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 455 | return -1; |
| 456 | } |
Guido van Rossum | 055968c | 1995-08-04 04:05:10 +0000 | [diff] [blame] | 457 | sizediff = newsize - v->ob_size; |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 458 | if (sizediff == 0) |
| 459 | return 0; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 460 | /* XXX UNREF/NEWREF interface should be more symmetrical */ |
Guido van Rossum | 441e4ab | 1996-05-23 22:46:51 +0000 | [diff] [blame] | 461 | #ifdef Py_REF_DEBUG |
Guido van Rossum | 6f9e433 | 1995-03-29 16:57:48 +0000 | [diff] [blame] | 462 | --_Py_RefTotal; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 463 | #endif |
Guido van Rossum | bffd683 | 2000-01-20 22:32:56 +0000 | [diff] [blame] | 464 | _Py_ForgetReference((PyObject *)v); |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 465 | if (last_is_sticky && sizediff < 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 466 | /* shrinking: |
| 467 | move entries to the front and zero moved entries */ |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 468 | for (i = 0; i < newsize; i++) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 469 | Py_XDECREF(v->ob_item[i]); |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 470 | v->ob_item[i] = v->ob_item[i - sizediff]; |
| 471 | v->ob_item[i - sizediff] = NULL; |
| 472 | } |
| 473 | } |
| 474 | for (i = newsize; i < v->ob_size; i++) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 475 | Py_XDECREF(v->ob_item[i]); |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 476 | v->ob_item[i] = NULL; |
| 477 | } |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 478 | #if MAXSAVESIZE > 0 |
| 479 | if (newsize == 0 && free_tuples[0]) { |
| 480 | num_free_tuples[0]--; |
| 481 | sv = free_tuples[0]; |
| 482 | sv->ob_size = 0; |
| 483 | Py_INCREF(sv); |
| 484 | #ifdef COUNT_ALLOCS |
| 485 | tuple_zero_allocs++; |
| 486 | #endif |
| 487 | tupledealloc(v); |
| 488 | *pv = (PyObject*) sv; |
| 489 | return 0; |
| 490 | } |
| 491 | if (0 < newsize && newsize < MAXSAVESIZE && |
| 492 | (sv = free_tuples[newsize]) != NULL) |
| 493 | { |
| 494 | free_tuples[newsize] = (PyTupleObject *) sv->ob_item[0]; |
| 495 | num_free_tuples[newsize]--; |
| 496 | #ifdef COUNT_ALLOCS |
| 497 | fast_tuple_allocs++; |
| 498 | #endif |
| 499 | #ifdef Py_TRACE_REFS |
| 500 | sv->ob_type = &PyTuple_Type; |
| 501 | #endif |
| 502 | for (i = 0; i < newsize; ++i){ |
| 503 | sv->ob_item[i] = v->ob_item[i]; |
| 504 | v->ob_item[i] = NULL; |
| 505 | } |
| 506 | sv->ob_size = v->ob_size; |
| 507 | tupledealloc(v); |
| 508 | *pv = (PyObject *) sv; |
| 509 | } else |
| 510 | #endif |
| 511 | { |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 512 | #ifdef WITH_CYCLE_GC |
| 513 | PyGC_Head *g = PyObject_AS_GC((PyObject *)v); |
| 514 | PyObject_GC_Fini((PyObject *)v); |
| 515 | sv = (PyTupleObject *) |
| 516 | PyObject_REALLOC((char *)g, sizeof(PyTupleObject) |
| 517 | + PyGC_HEAD_SIZE |
| 518 | + newsize * sizeof(PyObject *)); |
| 519 | if (g == NULL) { |
| 520 | sv = NULL; |
| 521 | } else { |
| 522 | sv = (PyTupleObject *)PyObject_FROM_GC(g); |
| 523 | } |
| 524 | #else |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 525 | sv = (PyTupleObject *) |
Jeremy Hylton | d08b4c4 | 2000-06-23 19:37:02 +0000 | [diff] [blame] | 526 | PyObject_REALLOC((char *)v, sizeof(PyTupleObject) |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 527 | + PyGC_HEAD_SIZE |
Jeremy Hylton | d08b4c4 | 2000-06-23 19:37:02 +0000 | [diff] [blame] | 528 | + newsize * sizeof(PyObject *)); |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 529 | #endif |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 530 | *pv = (PyObject *) sv; |
| 531 | if (sv == NULL) { |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 532 | PyObject_GC_Init((PyObject *)v); |
Guido van Rossum | 4cc6ac7 | 2000-07-01 01:00:38 +0000 | [diff] [blame] | 533 | v = (PyTupleObject *) PyObject_AS_GC(v); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 534 | PyObject_DEL(v); |
Guido van Rossum | 5ce78f8 | 2000-04-21 21:15:05 +0000 | [diff] [blame] | 535 | PyErr_NoMemory(); |
| 536 | return -1; |
| 537 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 538 | } |
Guido van Rossum | bffd683 | 2000-01-20 22:32:56 +0000 | [diff] [blame] | 539 | _Py_NewReference((PyObject *)sv); |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 540 | for (i = sv->ob_size; i < newsize; i++) |
| 541 | sv->ob_item[i] = NULL; |
| 542 | if (last_is_sticky && sizediff > 0) { |
| 543 | /* growing: move entries to the end and zero moved entries */ |
| 544 | for (i = newsize - 1; i >= sizediff; i--) { |
| 545 | sv->ob_item[i] = sv->ob_item[i - sizediff]; |
| 546 | sv->ob_item[i - sizediff] = NULL; |
| 547 | } |
| 548 | } |
Jeremy Hylton | c5007aa | 2000-06-30 05:02:53 +0000 | [diff] [blame] | 549 | PyObject_GC_Init(sv); |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 550 | sv->ob_size = newsize; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 551 | return 0; |
| 552 | } |
Guido van Rossum | fbbd57e | 1997-08-05 02:16:08 +0000 | [diff] [blame] | 553 | |
| 554 | void |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame^] | 555 | PyTuple_Fini(void) |
Guido van Rossum | fbbd57e | 1997-08-05 02:16:08 +0000 | [diff] [blame] | 556 | { |
| 557 | #if MAXSAVESIZE > 0 |
| 558 | int i; |
| 559 | |
| 560 | Py_XDECREF(free_tuples[0]); |
| 561 | free_tuples[0] = NULL; |
| 562 | |
| 563 | for (i = 1; i < MAXSAVESIZE; i++) { |
| 564 | PyTupleObject *p, *q; |
| 565 | p = free_tuples[i]; |
| 566 | free_tuples[i] = NULL; |
| 567 | while (p) { |
| 568 | q = p; |
| 569 | p = (PyTupleObject *)(p->ob_item[0]); |
Guido van Rossum | 4cc6ac7 | 2000-07-01 01:00:38 +0000 | [diff] [blame] | 570 | q = (PyTupleObject *) PyObject_AS_GC(q); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 571 | PyObject_DEL(q); |
Guido van Rossum | fbbd57e | 1997-08-05 02:16:08 +0000 | [diff] [blame] | 572 | } |
| 573 | } |
| 574 | #endif |
| 575 | } |