Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1 | #include "Python.h" |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 2 | |
| 3 | #include <ffi.h> |
| 4 | #ifdef MS_WIN32 |
| 5 | #include <windows.h> |
| 6 | #endif |
| 7 | #include "ctypes.h" |
| 8 | |
Benjamin Peterson | b173f78 | 2009-05-05 22:31:58 +0000 | [diff] [blame] | 9 | |
| 10 | #define CTYPES_CFIELD_CAPSULE_NAME_PYMEM "_ctypes/cfield.c pymem" |
| 11 | |
| 12 | static void pymem_destructor(PyObject *ptr) |
| 13 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 14 | void *p = PyCapsule_GetPointer(ptr, CTYPES_CFIELD_CAPSULE_NAME_PYMEM); |
| 15 | if (p) { |
| 16 | PyMem_Free(p); |
| 17 | } |
Benjamin Peterson | b173f78 | 2009-05-05 22:31:58 +0000 | [diff] [blame] | 18 | } |
| 19 | |
| 20 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 21 | /******************************************************************/ |
| 22 | /* |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 23 | PyCField_Type |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 24 | */ |
| 25 | static PyObject * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 26 | PyCField_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 27 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 28 | CFieldObject *obj; |
| 29 | obj = (CFieldObject *)type->tp_alloc(type, 0); |
| 30 | return (PyObject *)obj; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 31 | } |
| 32 | |
| 33 | /* |
| 34 | * Expects the size, index and offset for the current field in *psize and |
| 35 | * *poffset, stores the total size so far in *psize, the offset for the next |
| 36 | * field in *poffset, the alignment requirements for the current field in |
| 37 | * *palign, and returns a field desriptor for this field. |
| 38 | */ |
| 39 | /* |
| 40 | * bitfields extension: |
| 41 | * bitsize != 0: this is a bit field. |
| 42 | * pbitofs points to the current bit offset, this will be updated. |
| 43 | * prev_desc points to the type of the previous bitfield, if any. |
| 44 | */ |
| 45 | PyObject * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 46 | PyCField_FromDesc(PyObject *desc, Py_ssize_t index, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 47 | Py_ssize_t *pfield_size, int bitsize, int *pbitofs, |
| 48 | Py_ssize_t *psize, Py_ssize_t *poffset, Py_ssize_t *palign, |
| 49 | int pack, int big_endian) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 50 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 51 | CFieldObject *self; |
| 52 | PyObject *proto; |
Brett Cannon | b94767f | 2011-02-22 20:15:44 +0000 | [diff] [blame] | 53 | Py_ssize_t size, align; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 54 | SETFUNC setfunc = NULL; |
| 55 | GETFUNC getfunc = NULL; |
| 56 | StgDictObject *dict; |
| 57 | int fieldtype; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 58 | #define NO_BITFIELD 0 |
| 59 | #define NEW_BITFIELD 1 |
| 60 | #define CONT_BITFIELD 2 |
| 61 | #define EXPAND_BITFIELD 3 |
| 62 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 63 | self = (CFieldObject *)PyObject_CallObject((PyObject *)&PyCField_Type, |
| 64 | NULL); |
| 65 | if (self == NULL) |
| 66 | return NULL; |
| 67 | dict = PyType_stgdict(desc); |
| 68 | if (!dict) { |
| 69 | PyErr_SetString(PyExc_TypeError, |
| 70 | "has no _stginfo_"); |
| 71 | Py_DECREF(self); |
| 72 | return NULL; |
| 73 | } |
| 74 | if (bitsize /* this is a bitfield request */ |
| 75 | && *pfield_size /* we have a bitfield open */ |
Thomas Heller | 28acc6c | 2008-09-29 20:03:53 +0000 | [diff] [blame] | 76 | #ifdef MS_WIN32 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 77 | /* MSVC, GCC with -mms-bitfields */ |
| 78 | && dict->size * 8 == *pfield_size |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 79 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 80 | /* GCC */ |
| 81 | && dict->size * 8 <= *pfield_size |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 82 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 83 | && (*pbitofs + bitsize) <= *pfield_size) { |
| 84 | /* continue bit field */ |
| 85 | fieldtype = CONT_BITFIELD; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 86 | #ifndef MS_WIN32 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 87 | } else if (bitsize /* this is a bitfield request */ |
| 88 | && *pfield_size /* we have a bitfield open */ |
| 89 | && dict->size * 8 >= *pfield_size |
| 90 | && (*pbitofs + bitsize) <= dict->size * 8) { |
| 91 | /* expand bit field */ |
| 92 | fieldtype = EXPAND_BITFIELD; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 93 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 94 | } else if (bitsize) { |
| 95 | /* start new bitfield */ |
| 96 | fieldtype = NEW_BITFIELD; |
| 97 | *pbitofs = 0; |
| 98 | *pfield_size = dict->size * 8; |
| 99 | } else { |
| 100 | /* not a bit field */ |
| 101 | fieldtype = NO_BITFIELD; |
| 102 | *pbitofs = 0; |
| 103 | *pfield_size = 0; |
| 104 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 105 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 106 | size = dict->size; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 107 | proto = desc; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 108 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 109 | /* Field descriptors for 'c_char * n' are be scpecial cased to |
| 110 | return a Python string instead of an Array object instance... |
| 111 | */ |
| 112 | if (PyCArrayTypeObject_Check(proto)) { |
| 113 | StgDictObject *adict = PyType_stgdict(proto); |
| 114 | StgDictObject *idict; |
| 115 | if (adict && adict->proto) { |
| 116 | idict = PyType_stgdict(adict->proto); |
| 117 | if (!idict) { |
| 118 | PyErr_SetString(PyExc_TypeError, |
| 119 | "has no _stginfo_"); |
| 120 | Py_DECREF(self); |
| 121 | return NULL; |
| 122 | } |
| 123 | if (idict->getfunc == _ctypes_get_fielddesc("c")->getfunc) { |
| 124 | struct fielddesc *fd = _ctypes_get_fielddesc("s"); |
| 125 | getfunc = fd->getfunc; |
| 126 | setfunc = fd->setfunc; |
| 127 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 128 | #ifdef CTYPES_UNICODE |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 129 | if (idict->getfunc == _ctypes_get_fielddesc("u")->getfunc) { |
| 130 | struct fielddesc *fd = _ctypes_get_fielddesc("U"); |
| 131 | getfunc = fd->getfunc; |
| 132 | setfunc = fd->setfunc; |
| 133 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 134 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 135 | } |
| 136 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 137 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 138 | self->setfunc = setfunc; |
| 139 | self->getfunc = getfunc; |
| 140 | self->index = index; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 141 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 142 | Py_INCREF(proto); |
| 143 | self->proto = proto; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 144 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 145 | switch (fieldtype) { |
| 146 | case NEW_BITFIELD: |
| 147 | if (big_endian) |
| 148 | self->size = (bitsize << 16) + *pfield_size - *pbitofs - bitsize; |
| 149 | else |
| 150 | self->size = (bitsize << 16) + *pbitofs; |
| 151 | *pbitofs = bitsize; |
| 152 | /* fall through */ |
| 153 | case NO_BITFIELD: |
| 154 | if (pack) |
| 155 | align = min(pack, dict->align); |
| 156 | else |
| 157 | align = dict->align; |
| 158 | if (align && *poffset % align) { |
| 159 | Py_ssize_t delta = align - (*poffset % align); |
| 160 | *psize += delta; |
| 161 | *poffset += delta; |
| 162 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 163 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 164 | if (bitsize == 0) |
| 165 | self->size = size; |
| 166 | *psize += size; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 167 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 168 | self->offset = *poffset; |
| 169 | *poffset += size; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 170 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 171 | *palign = align; |
| 172 | break; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 173 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 174 | case EXPAND_BITFIELD: |
| 175 | *poffset += dict->size - *pfield_size/8; |
| 176 | *psize += dict->size - *pfield_size/8; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 177 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 178 | *pfield_size = dict->size * 8; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 179 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 180 | if (big_endian) |
| 181 | self->size = (bitsize << 16) + *pfield_size - *pbitofs - bitsize; |
| 182 | else |
| 183 | self->size = (bitsize << 16) + *pbitofs; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 184 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 185 | self->offset = *poffset - size; /* poffset is already updated for the NEXT field */ |
| 186 | *pbitofs += bitsize; |
| 187 | break; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 188 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 189 | case CONT_BITFIELD: |
| 190 | if (big_endian) |
| 191 | self->size = (bitsize << 16) + *pfield_size - *pbitofs - bitsize; |
| 192 | else |
| 193 | self->size = (bitsize << 16) + *pbitofs; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 194 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 195 | self->offset = *poffset - size; /* poffset is already updated for the NEXT field */ |
| 196 | *pbitofs += bitsize; |
| 197 | break; |
| 198 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 199 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 200 | return (PyObject *)self; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 201 | } |
| 202 | |
| 203 | static int |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 204 | PyCField_set(CFieldObject *self, PyObject *inst, PyObject *value) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 205 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 206 | CDataObject *dst; |
| 207 | char *ptr; |
| 208 | assert(CDataObject_Check(inst)); |
| 209 | dst = (CDataObject *)inst; |
| 210 | ptr = dst->b_ptr + self->offset; |
| 211 | if (value == NULL) { |
| 212 | PyErr_SetString(PyExc_TypeError, |
| 213 | "can't delete attribute"); |
| 214 | return -1; |
| 215 | } |
| 216 | return PyCData_set(inst, self->proto, self->setfunc, value, |
| 217 | self->index, self->size, ptr); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | static PyObject * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 221 | PyCField_get(CFieldObject *self, PyObject *inst, PyTypeObject *type) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 222 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 223 | CDataObject *src; |
| 224 | if (inst == NULL) { |
| 225 | Py_INCREF(self); |
| 226 | return (PyObject *)self; |
| 227 | } |
| 228 | assert(CDataObject_Check(inst)); |
| 229 | src = (CDataObject *)inst; |
| 230 | return PyCData_get(self->proto, self->getfunc, inst, |
| 231 | self->index, self->size, src->b_ptr + self->offset); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 232 | } |
| 233 | |
Thomas Wouters | 73e5a5b | 2006-06-08 15:35:45 +0000 | [diff] [blame] | 234 | static PyObject * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 235 | PyCField_get_offset(PyObject *self, void *data) |
Thomas Wouters | 73e5a5b | 2006-06-08 15:35:45 +0000 | [diff] [blame] | 236 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 237 | return PyLong_FromSsize_t(((CFieldObject *)self)->offset); |
Thomas Wouters | 73e5a5b | 2006-06-08 15:35:45 +0000 | [diff] [blame] | 238 | } |
| 239 | |
| 240 | static PyObject * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 241 | PyCField_get_size(PyObject *self, void *data) |
Thomas Wouters | 73e5a5b | 2006-06-08 15:35:45 +0000 | [diff] [blame] | 242 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 243 | return PyLong_FromSsize_t(((CFieldObject *)self)->size); |
Thomas Wouters | 73e5a5b | 2006-06-08 15:35:45 +0000 | [diff] [blame] | 244 | } |
| 245 | |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 246 | static PyGetSetDef PyCField_getset[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 247 | { "offset", PyCField_get_offset, NULL, "offset in bytes of this field" }, |
| 248 | { "size", PyCField_get_size, NULL, "size in bytes of this field" }, |
| 249 | { NULL, NULL, NULL, NULL }, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 250 | }; |
| 251 | |
| 252 | static int |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 253 | PyCField_traverse(CFieldObject *self, visitproc visit, void *arg) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 254 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 255 | Py_VISIT(self->proto); |
| 256 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 257 | } |
| 258 | |
| 259 | static int |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 260 | PyCField_clear(CFieldObject *self) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 261 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 262 | Py_CLEAR(self->proto); |
| 263 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | static void |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 267 | PyCField_dealloc(PyObject *self) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 268 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 269 | PyCField_clear((CFieldObject *)self); |
| 270 | self->ob_type->tp_free((PyObject *)self); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | static PyObject * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 274 | PyCField_repr(CFieldObject *self) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 275 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 276 | PyObject *result; |
| 277 | Py_ssize_t bits = self->size >> 16; |
| 278 | Py_ssize_t size = self->size & 0xFFFF; |
| 279 | const char *name; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 280 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 281 | name = ((PyTypeObject *)self->proto)->tp_name; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 282 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 283 | if (bits) |
| 284 | result = PyUnicode_FromFormat( |
| 285 | "<Field type=%s, ofs=%zd:%zd, bits=%zd>", |
| 286 | name, self->offset, size, bits); |
| 287 | else |
| 288 | result = PyUnicode_FromFormat( |
| 289 | "<Field type=%s, ofs=%zd, size=%zd>", |
| 290 | name, self->offset, size); |
| 291 | return result; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 292 | } |
| 293 | |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 294 | PyTypeObject PyCField_Type = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 295 | PyVarObject_HEAD_INIT(NULL, 0) |
| 296 | "_ctypes.CField", /* tp_name */ |
| 297 | sizeof(CFieldObject), /* tp_basicsize */ |
| 298 | 0, /* tp_itemsize */ |
| 299 | PyCField_dealloc, /* tp_dealloc */ |
| 300 | 0, /* tp_print */ |
| 301 | 0, /* tp_getattr */ |
| 302 | 0, /* tp_setattr */ |
| 303 | 0, /* tp_reserved */ |
| 304 | (reprfunc)PyCField_repr, /* tp_repr */ |
| 305 | 0, /* tp_as_number */ |
| 306 | 0, /* tp_as_sequence */ |
| 307 | 0, /* tp_as_mapping */ |
| 308 | 0, /* tp_hash */ |
| 309 | 0, /* tp_call */ |
| 310 | 0, /* tp_str */ |
| 311 | 0, /* tp_getattro */ |
| 312 | 0, /* tp_setattro */ |
| 313 | 0, /* tp_as_buffer */ |
| 314 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */ |
| 315 | "Structure/Union member", /* tp_doc */ |
| 316 | (traverseproc)PyCField_traverse, /* tp_traverse */ |
| 317 | (inquiry)PyCField_clear, /* tp_clear */ |
| 318 | 0, /* tp_richcompare */ |
| 319 | 0, /* tp_weaklistoffset */ |
| 320 | 0, /* tp_iter */ |
| 321 | 0, /* tp_iternext */ |
| 322 | 0, /* tp_methods */ |
| 323 | 0, /* tp_members */ |
| 324 | PyCField_getset, /* tp_getset */ |
| 325 | 0, /* tp_base */ |
| 326 | 0, /* tp_dict */ |
| 327 | (descrgetfunc)PyCField_get, /* tp_descr_get */ |
| 328 | (descrsetfunc)PyCField_set, /* tp_descr_set */ |
| 329 | 0, /* tp_dictoffset */ |
| 330 | 0, /* tp_init */ |
| 331 | 0, /* tp_alloc */ |
| 332 | PyCField_new, /* tp_new */ |
| 333 | 0, /* tp_free */ |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 334 | }; |
| 335 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 336 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 337 | /******************************************************************/ |
| 338 | /* |
| 339 | Accessor functions |
| 340 | */ |
| 341 | |
| 342 | /* Derived from Modules/structmodule.c: |
| 343 | Helper routine to get a Python integer and raise the appropriate error |
| 344 | if it isn't one */ |
| 345 | |
| 346 | static int |
| 347 | get_long(PyObject *v, long *p) |
| 348 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 349 | long x; |
Christian Heimes | 969fe57 | 2008-01-25 11:23:10 +0000 | [diff] [blame] | 350 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 351 | if (PyFloat_Check(v)) { |
| 352 | PyErr_SetString(PyExc_TypeError, |
| 353 | "int expected instead of float"); |
| 354 | return -1; |
| 355 | } |
| 356 | x = PyLong_AsUnsignedLongMask(v); |
| 357 | if (x == -1 && PyErr_Occurred()) |
| 358 | return -1; |
| 359 | *p = x; |
| 360 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | /* Same, but handling unsigned long */ |
| 364 | |
| 365 | static int |
| 366 | get_ulong(PyObject *v, unsigned long *p) |
| 367 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 368 | unsigned long x; |
Christian Heimes | 969fe57 | 2008-01-25 11:23:10 +0000 | [diff] [blame] | 369 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 370 | if (PyFloat_Check(v)) { |
| 371 | PyErr_SetString(PyExc_TypeError, |
| 372 | "int expected instead of float"); |
| 373 | return -1; |
| 374 | } |
| 375 | x = PyLong_AsUnsignedLongMask(v); |
| 376 | if (x == (unsigned long)-1 && PyErr_Occurred()) |
| 377 | return -1; |
| 378 | *p = x; |
| 379 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 380 | } |
| 381 | |
| 382 | #ifdef HAVE_LONG_LONG |
| 383 | |
| 384 | /* Same, but handling native long long. */ |
| 385 | |
| 386 | static int |
| 387 | get_longlong(PyObject *v, PY_LONG_LONG *p) |
| 388 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 389 | PY_LONG_LONG x; |
| 390 | if (PyFloat_Check(v)) { |
| 391 | PyErr_SetString(PyExc_TypeError, |
| 392 | "int expected instead of float"); |
| 393 | return -1; |
| 394 | } |
| 395 | x = PyLong_AsUnsignedLongLongMask(v); |
| 396 | if (x == -1 && PyErr_Occurred()) |
| 397 | return -1; |
| 398 | *p = x; |
| 399 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | /* Same, but handling native unsigned long long. */ |
| 403 | |
| 404 | static int |
| 405 | get_ulonglong(PyObject *v, unsigned PY_LONG_LONG *p) |
| 406 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 407 | unsigned PY_LONG_LONG x; |
| 408 | if (PyFloat_Check(v)) { |
| 409 | PyErr_SetString(PyExc_TypeError, |
| 410 | "int expected instead of float"); |
| 411 | return -1; |
| 412 | } |
| 413 | x = PyLong_AsUnsignedLongLongMask(v); |
| 414 | if (x == (unsigned PY_LONG_LONG)-1 && PyErr_Occurred()) |
| 415 | return -1; |
| 416 | *p = x; |
| 417 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | #endif |
| 421 | |
| 422 | /***************************************************************** |
| 423 | * Integer fields, with bitfield support |
| 424 | */ |
| 425 | |
| 426 | /* how to decode the size field, for integer get/set functions */ |
| 427 | #define LOW_BIT(x) ((x) & 0xFFFF) |
| 428 | #define NUM_BITS(x) ((x) >> 16) |
| 429 | |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 430 | /* Doesn't work if NUM_BITS(size) == 0, but it never happens in SET() call. */ |
| 431 | #define BIT_MASK(type, size) (((((type)1 << (NUM_BITS(size) - 1)) - 1) << 1) + 1) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 432 | |
| 433 | /* This macro CHANGES the first parameter IN PLACE. For proper sign handling, |
| 434 | we must first shift left, then right. |
| 435 | */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 436 | #define GET_BITFIELD(v, size) \ |
| 437 | if (NUM_BITS(size)) { \ |
| 438 | v <<= (sizeof(v)*8 - LOW_BIT(size) - NUM_BITS(size)); \ |
| 439 | v >>= (sizeof(v)*8 - NUM_BITS(size)); \ |
| 440 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 441 | |
| 442 | /* This macro RETURNS the first parameter with the bit field CHANGED. */ |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 443 | #define SET(type, x, v, size) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 444 | (NUM_BITS(size) ? \ |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 445 | ( ( (type)x & ~(BIT_MASK(type, size) << LOW_BIT(size)) ) | ( ((type)v & BIT_MASK(type, size)) << LOW_BIT(size) ) ) \ |
| 446 | : (type)v) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 447 | |
| 448 | /* byte swapping macros */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 449 | #define SWAP_2(v) \ |
| 450 | ( ( (v >> 8) & 0x00FF) | \ |
| 451 | ( (v << 8) & 0xFF00) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 452 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 453 | #define SWAP_4(v) \ |
| 454 | ( ( (v & 0x000000FF) << 24 ) | \ |
| 455 | ( (v & 0x0000FF00) << 8 ) | \ |
| 456 | ( (v & 0x00FF0000) >> 8 ) | \ |
| 457 | ( ((v >> 24) & 0xFF)) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 458 | |
| 459 | #ifdef _MSC_VER |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 460 | #define SWAP_8(v) \ |
| 461 | ( ( (v & 0x00000000000000FFL) << 56 ) | \ |
| 462 | ( (v & 0x000000000000FF00L) << 40 ) | \ |
| 463 | ( (v & 0x0000000000FF0000L) << 24 ) | \ |
| 464 | ( (v & 0x00000000FF000000L) << 8 ) | \ |
| 465 | ( (v & 0x000000FF00000000L) >> 8 ) | \ |
| 466 | ( (v & 0x0000FF0000000000L) >> 24 ) | \ |
| 467 | ( (v & 0x00FF000000000000L) >> 40 ) | \ |
| 468 | ( ((v >> 56) & 0xFF)) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 469 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 470 | #define SWAP_8(v) \ |
| 471 | ( ( (v & 0x00000000000000FFLL) << 56 ) | \ |
| 472 | ( (v & 0x000000000000FF00LL) << 40 ) | \ |
| 473 | ( (v & 0x0000000000FF0000LL) << 24 ) | \ |
| 474 | ( (v & 0x00000000FF000000LL) << 8 ) | \ |
| 475 | ( (v & 0x000000FF00000000LL) >> 8 ) | \ |
| 476 | ( (v & 0x0000FF0000000000LL) >> 24 ) | \ |
| 477 | ( (v & 0x00FF000000000000LL) >> 40 ) | \ |
| 478 | ( ((v >> 56) & 0xFF)) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 479 | #endif |
| 480 | |
| 481 | #define SWAP_INT SWAP_4 |
| 482 | |
| 483 | #if SIZEOF_LONG == 4 |
| 484 | # define SWAP_LONG SWAP_4 |
| 485 | #elif SIZEOF_LONG == 8 |
| 486 | # define SWAP_LONG SWAP_8 |
| 487 | #endif |
| 488 | /***************************************************************** |
| 489 | * The setter methods return an object which must be kept alive, to keep the |
| 490 | * data valid which has been stored in the memory block. The ctypes object |
| 491 | * instance inserts this object into its 'b_objects' list. |
| 492 | * |
| 493 | * For simple Python types like integers or characters, there is nothing that |
| 494 | * has to been kept alive, so Py_None is returned in these cases. But this |
| 495 | * makes inspecting the 'b_objects' list, which is accessible from Python for |
| 496 | * debugging, less useful. |
| 497 | * |
| 498 | * So, defining the _CTYPES_DEBUG_KEEP symbol returns the original value |
| 499 | * instead of Py_None. |
| 500 | */ |
| 501 | |
| 502 | #ifdef _CTYPES_DEBUG_KEEP |
| 503 | #define _RET(x) Py_INCREF(x); return x |
| 504 | #else |
| 505 | #define _RET(X) Py_INCREF(Py_None); return Py_None |
| 506 | #endif |
| 507 | |
| 508 | /***************************************************************** |
| 509 | * integer accessor methods, supporting bit fields |
| 510 | */ |
| 511 | |
| 512 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 513 | b_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 514 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 515 | long val; |
| 516 | if (get_long(value, &val) < 0) |
| 517 | return NULL; |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 518 | *(signed char *)ptr = SET(signed char, *(signed char *)ptr, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 519 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 520 | } |
| 521 | |
| 522 | |
| 523 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 524 | b_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 525 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 526 | signed char val = *(signed char *)ptr; |
| 527 | GET_BITFIELD(val, size); |
| 528 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 529 | } |
| 530 | |
| 531 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 532 | B_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 533 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 534 | unsigned long val; |
| 535 | if (get_ulong(value, &val) < 0) |
| 536 | return NULL; |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 537 | *(unsigned char *)ptr = SET(unsigned char, *(unsigned char*)ptr, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 538 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 539 | } |
| 540 | |
| 541 | |
| 542 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 543 | B_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 544 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 545 | unsigned char val = *(unsigned char *)ptr; |
| 546 | GET_BITFIELD(val, size); |
| 547 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 551 | h_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 552 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 553 | long val; |
| 554 | short x; |
| 555 | if (get_long(value, &val) < 0) |
| 556 | return NULL; |
| 557 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 558 | x = SET(short, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 559 | memcpy(ptr, &x, sizeof(x)); |
| 560 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 561 | } |
| 562 | |
| 563 | |
| 564 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 565 | h_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 566 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 567 | long val; |
| 568 | short field; |
| 569 | if (get_long(value, &val) < 0) |
| 570 | return NULL; |
| 571 | memcpy(&field, ptr, sizeof(field)); |
| 572 | field = SWAP_2(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 573 | field = SET(short, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 574 | field = SWAP_2(field); |
| 575 | memcpy(ptr, &field, sizeof(field)); |
| 576 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 577 | } |
| 578 | |
| 579 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 580 | h_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 581 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 582 | short val; |
| 583 | memcpy(&val, ptr, sizeof(val)); |
| 584 | GET_BITFIELD(val, size); |
| 585 | return PyLong_FromLong((long)val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 589 | h_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 590 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 591 | short val; |
| 592 | memcpy(&val, ptr, sizeof(val)); |
| 593 | val = SWAP_2(val); |
| 594 | GET_BITFIELD(val, size); |
| 595 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 596 | } |
| 597 | |
| 598 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 599 | H_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 600 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 601 | unsigned long val; |
| 602 | unsigned short x; |
| 603 | if (get_ulong(value, &val) < 0) |
| 604 | return NULL; |
| 605 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 606 | x = SET(unsigned short, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 607 | memcpy(ptr, &x, sizeof(x)); |
| 608 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 612 | H_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 613 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 614 | unsigned long val; |
| 615 | unsigned short field; |
| 616 | if (get_ulong(value, &val) < 0) |
| 617 | return NULL; |
| 618 | memcpy(&field, ptr, sizeof(field)); |
| 619 | field = SWAP_2(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 620 | field = SET(unsigned short, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 621 | field = SWAP_2(field); |
| 622 | memcpy(ptr, &field, sizeof(field)); |
| 623 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | |
| 627 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 628 | H_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 629 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 630 | unsigned short val; |
| 631 | memcpy(&val, ptr, sizeof(val)); |
| 632 | GET_BITFIELD(val, size); |
| 633 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 634 | } |
| 635 | |
| 636 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 637 | H_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 638 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 639 | unsigned short val; |
| 640 | memcpy(&val, ptr, sizeof(val)); |
| 641 | val = SWAP_2(val); |
| 642 | GET_BITFIELD(val, size); |
| 643 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 647 | i_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 648 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 649 | long val; |
| 650 | int x; |
| 651 | if (get_long(value, &val) < 0) |
| 652 | return NULL; |
| 653 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 654 | x = SET(int, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 655 | memcpy(ptr, &x, sizeof(x)); |
| 656 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 657 | } |
| 658 | |
| 659 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 660 | i_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 661 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 662 | long val; |
| 663 | int field; |
| 664 | if (get_long(value, &val) < 0) |
| 665 | return NULL; |
| 666 | memcpy(&field, ptr, sizeof(field)); |
| 667 | field = SWAP_INT(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 668 | field = SET(int, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 669 | field = SWAP_INT(field); |
| 670 | memcpy(ptr, &field, sizeof(field)); |
| 671 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 672 | } |
| 673 | |
| 674 | |
| 675 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 676 | i_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 677 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 678 | int val; |
| 679 | memcpy(&val, ptr, sizeof(val)); |
| 680 | GET_BITFIELD(val, size); |
| 681 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 682 | } |
| 683 | |
| 684 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 685 | i_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 686 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 687 | int val; |
| 688 | memcpy(&val, ptr, sizeof(val)); |
| 689 | val = SWAP_INT(val); |
| 690 | GET_BITFIELD(val, size); |
| 691 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 692 | } |
| 693 | |
| 694 | #ifdef MS_WIN32 |
| 695 | /* short BOOL - VARIANT_BOOL */ |
| 696 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 697 | vBOOL_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 698 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 699 | switch (PyObject_IsTrue(value)) { |
| 700 | case -1: |
| 701 | return NULL; |
| 702 | case 0: |
| 703 | *(short int *)ptr = VARIANT_FALSE; |
| 704 | _RET(value); |
| 705 | default: |
| 706 | *(short int *)ptr = VARIANT_TRUE; |
| 707 | _RET(value); |
| 708 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 709 | } |
| 710 | |
| 711 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 712 | vBOOL_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 713 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 714 | return PyBool_FromLong((long)*(short int *)ptr); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 715 | } |
| 716 | #endif |
| 717 | |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 718 | #ifdef HAVE_C99_BOOL |
| 719 | #define BOOL_TYPE _Bool |
| 720 | #else |
| 721 | #define BOOL_TYPE char |
| 722 | #undef SIZEOF__BOOL |
| 723 | #define SIZEOF__BOOL 1 |
| 724 | #endif |
| 725 | |
| 726 | static PyObject * |
Christian Heimes | dd15f6c | 2008-03-16 00:07:10 +0000 | [diff] [blame] | 727 | bool_set(void *ptr, PyObject *value, Py_ssize_t size) |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 728 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 729 | switch (PyObject_IsTrue(value)) { |
| 730 | case -1: |
| 731 | return NULL; |
| 732 | case 0: |
| 733 | *(BOOL_TYPE *)ptr = 0; |
| 734 | _RET(value); |
| 735 | default: |
| 736 | *(BOOL_TYPE *)ptr = 1; |
| 737 | _RET(value); |
| 738 | } |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 739 | } |
| 740 | |
| 741 | static PyObject * |
Christian Heimes | dd15f6c | 2008-03-16 00:07:10 +0000 | [diff] [blame] | 742 | bool_get(void *ptr, Py_ssize_t size) |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 743 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 744 | return PyBool_FromLong((long)*(BOOL_TYPE *)ptr); |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 745 | } |
| 746 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 747 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 748 | I_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 749 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 750 | unsigned long val; |
| 751 | unsigned int x; |
| 752 | if (get_ulong(value, &val) < 0) |
| 753 | return NULL; |
| 754 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 755 | x = SET(unsigned int, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 756 | memcpy(ptr, &x, sizeof(x)); |
| 757 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 758 | } |
| 759 | |
| 760 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 761 | I_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 762 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 763 | unsigned long val; |
| 764 | unsigned int field; |
| 765 | if (get_ulong(value, &val) < 0) |
| 766 | return NULL; |
| 767 | memcpy(&field, ptr, sizeof(field)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 768 | field = SET(unsigned int, field, (unsigned int)val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 769 | field = SWAP_INT(field); |
| 770 | memcpy(ptr, &field, sizeof(field)); |
| 771 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | |
| 775 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 776 | I_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 777 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 778 | unsigned int val; |
| 779 | memcpy(&val, ptr, sizeof(val)); |
| 780 | GET_BITFIELD(val, size); |
| 781 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 782 | } |
| 783 | |
| 784 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 785 | I_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 786 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 787 | unsigned int val; |
| 788 | memcpy(&val, ptr, sizeof(val)); |
| 789 | val = SWAP_INT(val); |
| 790 | GET_BITFIELD(val, size); |
| 791 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 792 | } |
| 793 | |
| 794 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 795 | l_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 796 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 797 | long val; |
| 798 | long x; |
| 799 | if (get_long(value, &val) < 0) |
| 800 | return NULL; |
| 801 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 802 | x = SET(long, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 803 | memcpy(ptr, &x, sizeof(x)); |
| 804 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 805 | } |
| 806 | |
| 807 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 808 | l_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 809 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 810 | long val; |
| 811 | long field; |
| 812 | if (get_long(value, &val) < 0) |
| 813 | return NULL; |
| 814 | memcpy(&field, ptr, sizeof(field)); |
| 815 | field = SWAP_LONG(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 816 | field = SET(long, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 817 | field = SWAP_LONG(field); |
| 818 | memcpy(ptr, &field, sizeof(field)); |
| 819 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | |
| 823 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 824 | l_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 825 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 826 | long val; |
| 827 | memcpy(&val, ptr, sizeof(val)); |
| 828 | GET_BITFIELD(val, size); |
| 829 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 833 | l_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 834 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 835 | long val; |
| 836 | memcpy(&val, ptr, sizeof(val)); |
| 837 | val = SWAP_LONG(val); |
| 838 | GET_BITFIELD(val, size); |
| 839 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 840 | } |
| 841 | |
| 842 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 843 | L_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 844 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 845 | unsigned long val; |
| 846 | unsigned long x; |
| 847 | if (get_ulong(value, &val) < 0) |
| 848 | return NULL; |
| 849 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 850 | x = SET(unsigned long, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 851 | memcpy(ptr, &x, sizeof(x)); |
| 852 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 853 | } |
| 854 | |
| 855 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 856 | L_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 857 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 858 | unsigned long val; |
| 859 | unsigned long field; |
| 860 | if (get_ulong(value, &val) < 0) |
| 861 | return NULL; |
| 862 | memcpy(&field, ptr, sizeof(field)); |
| 863 | field = SWAP_LONG(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 864 | field = SET(unsigned long, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 865 | field = SWAP_LONG(field); |
| 866 | memcpy(ptr, &field, sizeof(field)); |
| 867 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 868 | } |
| 869 | |
| 870 | |
| 871 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 872 | L_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 873 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 874 | unsigned long val; |
| 875 | memcpy(&val, ptr, sizeof(val)); |
| 876 | GET_BITFIELD(val, size); |
| 877 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 878 | } |
| 879 | |
| 880 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 881 | L_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 882 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 883 | unsigned long val; |
| 884 | memcpy(&val, ptr, sizeof(val)); |
| 885 | val = SWAP_LONG(val); |
| 886 | GET_BITFIELD(val, size); |
| 887 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 888 | } |
| 889 | |
| 890 | #ifdef HAVE_LONG_LONG |
| 891 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 892 | q_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 893 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 894 | PY_LONG_LONG val; |
| 895 | PY_LONG_LONG x; |
| 896 | if (get_longlong(value, &val) < 0) |
| 897 | return NULL; |
| 898 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 899 | x = SET(PY_LONG_LONG, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 900 | memcpy(ptr, &x, sizeof(x)); |
| 901 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 902 | } |
| 903 | |
| 904 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 905 | q_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 906 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 907 | PY_LONG_LONG val; |
| 908 | PY_LONG_LONG field; |
| 909 | if (get_longlong(value, &val) < 0) |
| 910 | return NULL; |
| 911 | memcpy(&field, ptr, sizeof(field)); |
| 912 | field = SWAP_8(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 913 | field = SET(PY_LONG_LONG, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 914 | field = SWAP_8(field); |
| 915 | memcpy(ptr, &field, sizeof(field)); |
| 916 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 917 | } |
| 918 | |
| 919 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 920 | q_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 921 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 922 | PY_LONG_LONG val; |
| 923 | memcpy(&val, ptr, sizeof(val)); |
| 924 | GET_BITFIELD(val, size); |
| 925 | return PyLong_FromLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 926 | } |
| 927 | |
| 928 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 929 | q_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 930 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 931 | PY_LONG_LONG val; |
| 932 | memcpy(&val, ptr, sizeof(val)); |
| 933 | val = SWAP_8(val); |
| 934 | GET_BITFIELD(val, size); |
| 935 | return PyLong_FromLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 936 | } |
| 937 | |
| 938 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 939 | Q_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 940 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 941 | unsigned PY_LONG_LONG val; |
| 942 | unsigned PY_LONG_LONG x; |
| 943 | if (get_ulonglong(value, &val) < 0) |
| 944 | return NULL; |
| 945 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 946 | x = SET(PY_LONG_LONG, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 947 | memcpy(ptr, &x, sizeof(x)); |
| 948 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 949 | } |
| 950 | |
| 951 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 952 | Q_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 953 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 954 | unsigned PY_LONG_LONG val; |
| 955 | unsigned PY_LONG_LONG field; |
| 956 | if (get_ulonglong(value, &val) < 0) |
| 957 | return NULL; |
| 958 | memcpy(&field, ptr, sizeof(field)); |
| 959 | field = SWAP_8(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 960 | field = SET(unsigned PY_LONG_LONG, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 961 | field = SWAP_8(field); |
| 962 | memcpy(ptr, &field, sizeof(field)); |
| 963 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 964 | } |
| 965 | |
| 966 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 967 | Q_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 968 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 969 | unsigned PY_LONG_LONG val; |
| 970 | memcpy(&val, ptr, sizeof(val)); |
| 971 | GET_BITFIELD(val, size); |
| 972 | return PyLong_FromUnsignedLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 973 | } |
| 974 | |
| 975 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 976 | Q_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 977 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 978 | unsigned PY_LONG_LONG val; |
| 979 | memcpy(&val, ptr, sizeof(val)); |
| 980 | val = SWAP_8(val); |
| 981 | GET_BITFIELD(val, size); |
| 982 | return PyLong_FromUnsignedLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 983 | } |
| 984 | #endif |
| 985 | |
| 986 | /***************************************************************** |
| 987 | * non-integer accessor methods, not supporting bit fields |
| 988 | */ |
| 989 | |
| 990 | |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 991 | static PyObject * |
Thomas Heller | ff72122 | 2008-01-17 18:46:55 +0000 | [diff] [blame] | 992 | g_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 993 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 994 | long double x; |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 995 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 996 | x = PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 997 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 998 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 999 | memcpy(ptr, &x, sizeof(long double)); |
| 1000 | _RET(value); |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1001 | } |
| 1002 | |
| 1003 | static PyObject * |
Thomas Heller | ff72122 | 2008-01-17 18:46:55 +0000 | [diff] [blame] | 1004 | g_get(void *ptr, Py_ssize_t size) |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1005 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1006 | long double val; |
| 1007 | memcpy(&val, ptr, sizeof(long double)); |
| 1008 | return PyFloat_FromDouble(val); |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1009 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1010 | |
| 1011 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1012 | d_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1013 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1014 | double x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1015 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1016 | x = PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1017 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1018 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1019 | memcpy(ptr, &x, sizeof(double)); |
| 1020 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1021 | } |
| 1022 | |
| 1023 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1024 | d_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1025 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1026 | double val; |
| 1027 | memcpy(&val, ptr, sizeof(val)); |
| 1028 | return PyFloat_FromDouble(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1029 | } |
| 1030 | |
| 1031 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1032 | d_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1033 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1034 | double x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1035 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1036 | x = PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1037 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1038 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1039 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1040 | if (_PyFloat_Pack8(x, (unsigned char *)ptr, 1)) |
| 1041 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1042 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1043 | if (_PyFloat_Pack8(x, (unsigned char *)ptr, 0)) |
| 1044 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1045 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1046 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1047 | } |
| 1048 | |
| 1049 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1050 | d_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1051 | { |
| 1052 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1053 | return PyFloat_FromDouble(_PyFloat_Unpack8(ptr, 1)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1054 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1055 | return PyFloat_FromDouble(_PyFloat_Unpack8(ptr, 0)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1056 | #endif |
| 1057 | } |
| 1058 | |
| 1059 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1060 | f_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1061 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1062 | float x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1063 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1064 | x = (float)PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1065 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1066 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1067 | memcpy(ptr, &x, sizeof(x)); |
| 1068 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1069 | } |
| 1070 | |
| 1071 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1072 | f_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1073 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1074 | float val; |
| 1075 | memcpy(&val, ptr, sizeof(val)); |
| 1076 | return PyFloat_FromDouble(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1077 | } |
| 1078 | |
| 1079 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1080 | f_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1081 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1082 | float x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1083 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1084 | x = (float)PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1085 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1086 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1087 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1088 | if (_PyFloat_Pack4(x, (unsigned char *)ptr, 1)) |
| 1089 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1090 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1091 | if (_PyFloat_Pack4(x, (unsigned char *)ptr, 0)) |
| 1092 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1093 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1094 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1095 | } |
| 1096 | |
| 1097 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1098 | f_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1099 | { |
| 1100 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1101 | return PyFloat_FromDouble(_PyFloat_Unpack4(ptr, 1)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1102 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1103 | return PyFloat_FromDouble(_PyFloat_Unpack4(ptr, 0)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1104 | #endif |
| 1105 | } |
| 1106 | |
| 1107 | /* |
| 1108 | py_object refcounts: |
| 1109 | |
| 1110 | 1. If we have a py_object instance, O_get must Py_INCREF the returned |
| 1111 | object, of course. If O_get is called from a function result, no py_object |
| 1112 | instance is created - so callproc.c::GetResult has to call Py_DECREF. |
| 1113 | |
| 1114 | 2. The memory block in py_object owns a refcount. So, py_object must call |
| 1115 | Py_DECREF on destruction. Maybe only when b_needsfree is non-zero. |
| 1116 | */ |
| 1117 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1118 | O_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1119 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1120 | PyObject *ob = *(PyObject **)ptr; |
| 1121 | if (ob == NULL) { |
| 1122 | if (!PyErr_Occurred()) |
| 1123 | /* Set an error if not yet set */ |
| 1124 | PyErr_SetString(PyExc_ValueError, |
| 1125 | "PyObject is NULL"); |
| 1126 | return NULL; |
| 1127 | } |
| 1128 | Py_INCREF(ob); |
| 1129 | return ob; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1130 | } |
| 1131 | |
| 1132 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1133 | O_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1134 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1135 | /* Hm, does the memory block need it's own refcount or not? */ |
| 1136 | *(PyObject **)ptr = value; |
| 1137 | Py_INCREF(value); |
| 1138 | return value; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1139 | } |
| 1140 | |
| 1141 | |
| 1142 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1143 | c_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1144 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1145 | if (PyBytes_Check(value) && PyBytes_GET_SIZE(value) == 1) { |
| 1146 | *(char *)ptr = PyBytes_AS_STRING(value)[0]; |
| 1147 | _RET(value); |
| 1148 | } |
| 1149 | if (PyByteArray_Check(value) && PyByteArray_GET_SIZE(value) == 1) { |
| 1150 | *(char *)ptr = PyByteArray_AS_STRING(value)[0]; |
| 1151 | _RET(value); |
| 1152 | } |
| 1153 | if (PyLong_Check(value)) |
| 1154 | { |
| 1155 | long longval = PyLong_AS_LONG(value); |
| 1156 | if (longval < 0 || longval >= 256) |
| 1157 | goto error; |
| 1158 | *(char *)ptr = (char)longval; |
| 1159 | _RET(value); |
| 1160 | } |
Thomas Heller | 19b5254 | 2007-07-13 12:52:51 +0000 | [diff] [blame] | 1161 | error: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1162 | PyErr_Format(PyExc_TypeError, |
| 1163 | "one character string expected"); |
| 1164 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1165 | } |
| 1166 | |
| 1167 | |
| 1168 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1169 | c_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1170 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1171 | return PyBytes_FromStringAndSize((char *)ptr, 1); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1172 | } |
| 1173 | |
| 1174 | #ifdef CTYPES_UNICODE |
| 1175 | /* u - a single wchar_t character */ |
| 1176 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1177 | u_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1178 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1179 | Py_ssize_t len; |
Victor Stinner | 749261e | 2010-10-02 11:25:35 +0000 | [diff] [blame] | 1180 | wchar_t chars[2]; |
Victor Stinner | cf44883 | 2010-07-28 00:15:03 +0000 | [diff] [blame] | 1181 | if (!PyUnicode_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1182 | PyErr_Format(PyExc_TypeError, |
| 1183 | "unicode string expected instead of %s instance", |
| 1184 | value->ob_type->tp_name); |
| 1185 | return NULL; |
| 1186 | } else |
| 1187 | Py_INCREF(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1188 | |
Martin v. Löwis | 4d0d471 | 2010-12-03 20:14:31 +0000 | [diff] [blame] | 1189 | len = PyUnicode_AsWideChar(value, chars, 2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1190 | if (len != 1) { |
| 1191 | Py_DECREF(value); |
| 1192 | PyErr_SetString(PyExc_TypeError, |
| 1193 | "one character unicode string expected"); |
| 1194 | return NULL; |
| 1195 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1196 | |
Victor Stinner | 749261e | 2010-10-02 11:25:35 +0000 | [diff] [blame] | 1197 | *(wchar_t *)ptr = chars[0]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1198 | Py_DECREF(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1199 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1200 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1201 | } |
| 1202 | |
| 1203 | |
| 1204 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1205 | u_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1206 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1207 | return PyUnicode_FromWideChar((wchar_t *)ptr, 1); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1208 | } |
| 1209 | |
| 1210 | /* U - a unicode string */ |
| 1211 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1212 | U_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1213 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1214 | Py_ssize_t len; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1215 | wchar_t *p; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1216 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1217 | size /= sizeof(wchar_t); /* we count character units here, not bytes */ |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1218 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1219 | /* We need 'result' to be able to count the characters with wcslen, |
| 1220 | since ptr may not be NUL terminated. If the length is smaller (if |
| 1221 | it was actually NUL terminated, we construct a new one and throw |
| 1222 | away the result. |
| 1223 | */ |
| 1224 | /* chop off at the first NUL character, if any. */ |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1225 | p = (wchar_t*)ptr; |
| 1226 | for (len = 0; len < size; ++len) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1227 | if (!p[len]) |
| 1228 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1229 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1230 | |
| 1231 | return PyUnicode_FromWideChar((wchar_t *)ptr, len); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1232 | } |
| 1233 | |
| 1234 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1235 | U_set(void *ptr, PyObject *value, Py_ssize_t length) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1236 | { |
Victor Stinner | ea90e0f | 2011-11-21 02:11:26 +0100 | [diff] [blame] | 1237 | Py_UNICODE *wstr; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1238 | Py_ssize_t size; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1239 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1240 | /* It's easier to calculate in characters than in bytes */ |
| 1241 | length /= sizeof(wchar_t); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1242 | |
Victor Stinner | cf44883 | 2010-07-28 00:15:03 +0000 | [diff] [blame] | 1243 | if (!PyUnicode_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1244 | PyErr_Format(PyExc_TypeError, |
| 1245 | "unicode string expected instead of %s instance", |
| 1246 | value->ob_type->tp_name); |
| 1247 | return NULL; |
| 1248 | } else |
| 1249 | Py_INCREF(value); |
Victor Stinner | ea90e0f | 2011-11-21 02:11:26 +0100 | [diff] [blame] | 1250 | |
| 1251 | wstr = PyUnicode_AsUnicodeAndSize(value, &size); |
| 1252 | if (wstr == NULL) |
| 1253 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1254 | if (size > length) { |
| 1255 | PyErr_Format(PyExc_ValueError, |
| 1256 | "string too long (%zd, maximum length %zd)", |
| 1257 | size, length); |
| 1258 | Py_DECREF(value); |
| 1259 | return NULL; |
| 1260 | } else if (size < length-1) |
| 1261 | /* copy terminating NUL character if there is space */ |
| 1262 | size += 1; |
Brett Cannon | 845f784 | 2013-07-25 17:34:00 -0400 | [diff] [blame] | 1263 | |
| 1264 | if (PyUnicode_AsWideChar(value, (wchar_t *)ptr, size) == -1) { |
| 1265 | return NULL; |
| 1266 | } |
| 1267 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1268 | return value; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1269 | } |
| 1270 | |
| 1271 | #endif |
| 1272 | |
| 1273 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1274 | s_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1275 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1276 | Py_ssize_t i; |
| 1277 | char *p; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1278 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1279 | p = (char *)ptr; |
| 1280 | for (i = 0; i < size; ++i) { |
| 1281 | if (*p++ == '\0') |
| 1282 | break; |
| 1283 | } |
Thomas Heller | 19b5254 | 2007-07-13 12:52:51 +0000 | [diff] [blame] | 1284 | |
Victor Stinner | da0eca4 | 2010-06-11 21:50:30 +0000 | [diff] [blame] | 1285 | return PyBytes_FromStringAndSize((char *)ptr, (Py_ssize_t)i); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1286 | } |
| 1287 | |
| 1288 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1289 | s_set(void *ptr, PyObject *value, Py_ssize_t length) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1290 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1291 | char *data; |
| 1292 | Py_ssize_t size; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1293 | |
Victor Stinner | cf44883 | 2010-07-28 00:15:03 +0000 | [diff] [blame] | 1294 | if(PyBytes_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1295 | Py_INCREF(value); |
| 1296 | } else { |
| 1297 | PyErr_Format(PyExc_TypeError, |
| 1298 | "expected string, %s found", |
| 1299 | value->ob_type->tp_name); |
| 1300 | return NULL; |
| 1301 | } |
Thomas Heller | e5095e1 | 2007-07-13 11:19:35 +0000 | [diff] [blame] | 1302 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1303 | data = PyBytes_AS_STRING(value); |
| 1304 | if (!data) |
| 1305 | return NULL; |
| 1306 | size = strlen(data); /* XXX Why not Py_SIZE(value)? */ |
| 1307 | if (size < length) { |
| 1308 | /* This will copy the leading NUL character |
| 1309 | * if there is space for it. |
| 1310 | */ |
| 1311 | ++size; |
| 1312 | } else if (size > length) { |
| 1313 | PyErr_Format(PyExc_ValueError, |
| 1314 | "string too long (%zd, maximum length %zd)", |
| 1315 | size, length); |
| 1316 | Py_DECREF(value); |
| 1317 | return NULL; |
| 1318 | } |
| 1319 | /* Also copy the terminating NUL character if there is space */ |
| 1320 | memcpy((char *)ptr, data, size); |
Thomas Heller | e5095e1 | 2007-07-13 11:19:35 +0000 | [diff] [blame] | 1321 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1322 | Py_DECREF(value); |
| 1323 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1324 | } |
| 1325 | |
| 1326 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1327 | z_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1328 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1329 | if (value == Py_None) { |
| 1330 | *(char **)ptr = NULL; |
| 1331 | Py_INCREF(value); |
| 1332 | return value; |
| 1333 | } |
| 1334 | if (PyBytes_Check(value)) { |
| 1335 | *(char **)ptr = PyBytes_AsString(value); |
| 1336 | Py_INCREF(value); |
| 1337 | return value; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1338 | } else if (PyLong_Check(value)) { |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1339 | #if SIZEOF_VOID_P == SIZEOF_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1340 | *(char **)ptr = (char *)PyLong_AsUnsignedLongLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1341 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1342 | *(char **)ptr = (char *)PyLong_AsUnsignedLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1343 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1344 | _RET(value); |
| 1345 | } |
| 1346 | PyErr_Format(PyExc_TypeError, |
Ezio Melotti | acd5f7b | 2012-01-18 05:42:39 +0200 | [diff] [blame] | 1347 | "bytes or integer address expected instead of %s instance", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1348 | value->ob_type->tp_name); |
| 1349 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1350 | } |
| 1351 | |
| 1352 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1353 | z_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1354 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1355 | /* XXX What about invalid pointers ??? */ |
| 1356 | if (*(void **)ptr) { |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1357 | #if defined(MS_WIN32) && !defined(_WIN32_WCE) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1358 | if (IsBadStringPtrA(*(char **)ptr, -1)) { |
| 1359 | PyErr_Format(PyExc_ValueError, |
| 1360 | "invalid string pointer %p", |
| 1361 | *(char **)ptr); |
| 1362 | return NULL; |
| 1363 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1364 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1365 | return PyBytes_FromStringAndSize(*(char **)ptr, |
| 1366 | strlen(*(char **)ptr)); |
| 1367 | } else { |
| 1368 | Py_INCREF(Py_None); |
| 1369 | return Py_None; |
| 1370 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1371 | } |
| 1372 | |
| 1373 | #ifdef CTYPES_UNICODE |
| 1374 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1375 | Z_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1376 | { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1377 | PyObject *keep; |
| 1378 | wchar_t *buffer; |
| 1379 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1380 | if (value == Py_None) { |
| 1381 | *(wchar_t **)ptr = NULL; |
| 1382 | Py_INCREF(value); |
| 1383 | return value; |
| 1384 | } |
| 1385 | if (PyLong_Check(value) || PyLong_Check(value)) { |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1386 | #if SIZEOF_VOID_P == SIZEOF_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1387 | *(wchar_t **)ptr = (wchar_t *)PyLong_AsUnsignedLongLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1388 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1389 | *(wchar_t **)ptr = (wchar_t *)PyLong_AsUnsignedLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1390 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1391 | Py_INCREF(Py_None); |
| 1392 | return Py_None; |
| 1393 | } |
Victor Stinner | cf44883 | 2010-07-28 00:15:03 +0000 | [diff] [blame] | 1394 | if (!PyUnicode_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1395 | PyErr_Format(PyExc_TypeError, |
| 1396 | "unicode string or integer address expected instead of %s instance", |
| 1397 | value->ob_type->tp_name); |
| 1398 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1399 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1400 | |
| 1401 | /* We must create a wchar_t* buffer from the unicode object, |
| 1402 | and keep it alive */ |
| 1403 | buffer = PyUnicode_AsWideCharString(value, NULL); |
| 1404 | if (!buffer) |
| 1405 | return NULL; |
| 1406 | keep = PyCapsule_New(buffer, CTYPES_CFIELD_CAPSULE_NAME_PYMEM, pymem_destructor); |
| 1407 | if (!keep) { |
| 1408 | PyMem_Free(buffer); |
| 1409 | return NULL; |
| 1410 | } |
| 1411 | *(wchar_t **)ptr = buffer; |
| 1412 | return keep; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1413 | } |
| 1414 | |
| 1415 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1416 | Z_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1417 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1418 | wchar_t *p; |
| 1419 | p = *(wchar_t **)ptr; |
| 1420 | if (p) { |
Guido van Rossum | 360e4b8 | 2007-05-14 22:51:27 +0000 | [diff] [blame] | 1421 | #if defined(MS_WIN32) && !defined(_WIN32_WCE) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1422 | if (IsBadStringPtrW(*(wchar_t **)ptr, -1)) { |
| 1423 | PyErr_Format(PyExc_ValueError, |
| 1424 | "invalid string pointer %p", |
| 1425 | *(wchar_t **)ptr); |
| 1426 | return NULL; |
| 1427 | } |
Guido van Rossum | 360e4b8 | 2007-05-14 22:51:27 +0000 | [diff] [blame] | 1428 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1429 | return PyUnicode_FromWideChar(p, wcslen(p)); |
| 1430 | } else { |
| 1431 | Py_INCREF(Py_None); |
| 1432 | return Py_None; |
| 1433 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1434 | } |
| 1435 | #endif |
| 1436 | |
| 1437 | #ifdef MS_WIN32 |
| 1438 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1439 | BSTR_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1440 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1441 | BSTR bstr; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1442 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1443 | /* convert value into a PyUnicodeObject or NULL */ |
| 1444 | if (Py_None == value) { |
| 1445 | value = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1446 | } else if (PyUnicode_Check(value)) { |
| 1447 | Py_INCREF(value); /* for the descref below */ |
| 1448 | } else { |
| 1449 | PyErr_Format(PyExc_TypeError, |
| 1450 | "unicode string expected instead of %s instance", |
| 1451 | value->ob_type->tp_name); |
| 1452 | return NULL; |
| 1453 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1454 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1455 | /* create a BSTR from value */ |
| 1456 | if (value) { |
Victor Stinner | 3335447 | 2011-11-21 02:01:41 +0100 | [diff] [blame] | 1457 | wchar_t* wvalue; |
Victor Stinner | ea90e0f | 2011-11-21 02:11:26 +0100 | [diff] [blame] | 1458 | Py_ssize_t size; |
| 1459 | wvalue = PyUnicode_AsUnicodeAndSize(value, &size); |
| 1460 | if (wvalue == NULL) |
| 1461 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1462 | if ((unsigned) size != size) { |
| 1463 | PyErr_SetString(PyExc_ValueError, "String too long for BSTR"); |
| 1464 | return NULL; |
| 1465 | } |
Victor Stinner | 3335447 | 2011-11-21 02:01:41 +0100 | [diff] [blame] | 1466 | bstr = SysAllocStringLen(wvalue, (unsigned)size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1467 | Py_DECREF(value); |
| 1468 | } else |
| 1469 | bstr = NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1470 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1471 | /* free the previous contents, if any */ |
| 1472 | if (*(BSTR *)ptr) |
| 1473 | SysFreeString(*(BSTR *)ptr); |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1474 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1475 | /* and store it */ |
| 1476 | *(BSTR *)ptr = bstr; |
| 1477 | |
| 1478 | /* We don't need to keep any other object */ |
| 1479 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1480 | } |
| 1481 | |
| 1482 | |
| 1483 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1484 | BSTR_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1485 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1486 | BSTR p; |
| 1487 | p = *(BSTR *)ptr; |
| 1488 | if (p) |
| 1489 | return PyUnicode_FromWideChar(p, SysStringLen(p)); |
| 1490 | else { |
| 1491 | /* Hm, it seems NULL pointer and zero length string are the |
| 1492 | same in BSTR, see Don Box, p 81 |
| 1493 | */ |
| 1494 | Py_INCREF(Py_None); |
| 1495 | return Py_None; |
| 1496 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1497 | } |
| 1498 | #endif |
| 1499 | |
| 1500 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1501 | P_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1502 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1503 | void *v; |
| 1504 | if (value == Py_None) { |
| 1505 | *(void **)ptr = NULL; |
| 1506 | _RET(value); |
| 1507 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1508 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1509 | if (!PyLong_Check(value) && !PyLong_Check(value)) { |
| 1510 | PyErr_SetString(PyExc_TypeError, |
| 1511 | "cannot be converted to pointer"); |
| 1512 | return NULL; |
| 1513 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1514 | |
| 1515 | #if SIZEOF_VOID_P <= SIZEOF_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1516 | v = (void *)PyLong_AsUnsignedLongMask(value); |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1517 | #else |
| 1518 | #ifndef HAVE_LONG_LONG |
| 1519 | # error "PyLong_AsVoidPtr: sizeof(void*) > sizeof(long), but no long long" |
| 1520 | #elif SIZEOF_LONG_LONG < SIZEOF_VOID_P |
| 1521 | # error "PyLong_AsVoidPtr: sizeof(PY_LONG_LONG) < sizeof(void*)" |
| 1522 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1523 | v = (void *)PyLong_AsUnsignedLongLongMask(value); |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1524 | #endif |
| 1525 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1526 | if (PyErr_Occurred()) |
| 1527 | return NULL; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1528 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1529 | *(void **)ptr = v; |
| 1530 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1531 | } |
| 1532 | |
| 1533 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1534 | P_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1535 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1536 | if (*(void **)ptr == NULL) { |
| 1537 | Py_INCREF(Py_None); |
| 1538 | return Py_None; |
| 1539 | } |
| 1540 | return PyLong_FromVoidPtr(*(void **)ptr); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1541 | } |
| 1542 | |
| 1543 | static struct fielddesc formattable[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1544 | { 's', s_set, s_get, &ffi_type_pointer}, |
| 1545 | { 'b', b_set, b_get, &ffi_type_schar}, |
| 1546 | { 'B', B_set, B_get, &ffi_type_uchar}, |
| 1547 | { 'c', c_set, c_get, &ffi_type_schar}, |
| 1548 | { 'd', d_set, d_get, &ffi_type_double, d_set_sw, d_get_sw}, |
| 1549 | { 'g', g_set, g_get, &ffi_type_longdouble}, |
| 1550 | { 'f', f_set, f_get, &ffi_type_float, f_set_sw, f_get_sw}, |
| 1551 | { 'h', h_set, h_get, &ffi_type_sshort, h_set_sw, h_get_sw}, |
| 1552 | { 'H', H_set, H_get, &ffi_type_ushort, H_set_sw, H_get_sw}, |
| 1553 | { 'i', i_set, i_get, &ffi_type_sint, i_set_sw, i_get_sw}, |
| 1554 | { 'I', I_set, I_get, &ffi_type_uint, I_set_sw, I_get_sw}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1555 | /* XXX Hm, sizeof(int) == sizeof(long) doesn't hold on every platform */ |
| 1556 | /* As soon as we can get rid of the type codes, this is no longer a problem */ |
| 1557 | #if SIZEOF_LONG == 4 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1558 | { 'l', l_set, l_get, &ffi_type_sint32, l_set_sw, l_get_sw}, |
| 1559 | { 'L', L_set, L_get, &ffi_type_uint32, L_set_sw, L_get_sw}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1560 | #elif SIZEOF_LONG == 8 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1561 | { 'l', l_set, l_get, &ffi_type_sint64, l_set_sw, l_get_sw}, |
| 1562 | { 'L', L_set, L_get, &ffi_type_uint64, L_set_sw, L_get_sw}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1563 | #else |
| 1564 | # error |
| 1565 | #endif |
| 1566 | #ifdef HAVE_LONG_LONG |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 1567 | #if SIZEOF_LONG_LONG == 8 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1568 | { 'q', q_set, q_get, &ffi_type_sint64, q_set_sw, q_get_sw}, |
| 1569 | { 'Q', Q_set, Q_get, &ffi_type_uint64, Q_set_sw, Q_get_sw}, |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 1570 | #else |
| 1571 | # error |
| 1572 | #endif |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1573 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1574 | { 'P', P_set, P_get, &ffi_type_pointer}, |
| 1575 | { 'z', z_set, z_get, &ffi_type_pointer}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1576 | #ifdef CTYPES_UNICODE |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1577 | { 'u', u_set, u_get, NULL}, /* ffi_type set later */ |
| 1578 | { 'U', U_set, U_get, &ffi_type_pointer}, |
| 1579 | { 'Z', Z_set, Z_get, &ffi_type_pointer}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1580 | #endif |
| 1581 | #ifdef MS_WIN32 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1582 | { 'X', BSTR_set, BSTR_get, &ffi_type_pointer}, |
| 1583 | { 'v', vBOOL_set, vBOOL_get, &ffi_type_sshort}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1584 | #endif |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1585 | #if SIZEOF__BOOL == 1 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1586 | { '?', bool_set, bool_get, &ffi_type_uchar}, /* Also fallback for no native _Bool support */ |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1587 | #elif SIZEOF__BOOL == SIZEOF_SHORT |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1588 | { '?', bool_set, bool_get, &ffi_type_ushort}, |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1589 | #elif SIZEOF__BOOL == SIZEOF_INT |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1590 | { '?', bool_set, bool_get, &ffi_type_uint, I_set_sw, I_get_sw}, |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1591 | #elif SIZEOF__BOOL == SIZEOF_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1592 | { '?', bool_set, bool_get, &ffi_type_ulong, L_set_sw, L_get_sw}, |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1593 | #elif SIZEOF__BOOL == SIZEOF_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1594 | { '?', bool_set, bool_get, &ffi_type_ulong, Q_set_sw, Q_get_sw}, |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1595 | #endif /* SIZEOF__BOOL */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1596 | { 'O', O_set, O_get, &ffi_type_pointer}, |
| 1597 | { 0, NULL, NULL, NULL}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1598 | }; |
| 1599 | |
| 1600 | /* |
| 1601 | Ideas: Implement VARIANT in this table, using 'V' code. |
| 1602 | Use '?' as code for BOOL. |
| 1603 | */ |
| 1604 | |
| 1605 | struct fielddesc * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 1606 | _ctypes_get_fielddesc(const char *fmt) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1607 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1608 | static int initialized = 0; |
| 1609 | struct fielddesc *table = formattable; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1610 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1611 | if (!initialized) { |
| 1612 | initialized = 1; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1613 | #ifdef CTYPES_UNICODE |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1614 | if (sizeof(wchar_t) == sizeof(short)) |
| 1615 | _ctypes_get_fielddesc("u")->pffi_type = &ffi_type_sshort; |
| 1616 | else if (sizeof(wchar_t) == sizeof(int)) |
| 1617 | _ctypes_get_fielddesc("u")->pffi_type = &ffi_type_sint; |
| 1618 | else if (sizeof(wchar_t) == sizeof(long)) |
| 1619 | _ctypes_get_fielddesc("u")->pffi_type = &ffi_type_slong; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1620 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1621 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1622 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1623 | for (; table->code; ++table) { |
| 1624 | if (table->code == fmt[0]) |
| 1625 | return table; |
| 1626 | } |
| 1627 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1628 | } |
| 1629 | |
| 1630 | typedef struct { char c; char x; } s_char; |
| 1631 | typedef struct { char c; short x; } s_short; |
| 1632 | typedef struct { char c; int x; } s_int; |
| 1633 | typedef struct { char c; long x; } s_long; |
| 1634 | typedef struct { char c; float x; } s_float; |
| 1635 | typedef struct { char c; double x; } s_double; |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1636 | typedef struct { char c; long double x; } s_long_double; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1637 | typedef struct { char c; char *x; } s_char_p; |
| 1638 | typedef struct { char c; void *x; } s_void_p; |
| 1639 | |
| 1640 | /* |
| 1641 | #define CHAR_ALIGN (sizeof(s_char) - sizeof(char)) |
| 1642 | #define SHORT_ALIGN (sizeof(s_short) - sizeof(short)) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1643 | #define LONG_ALIGN (sizeof(s_long) - sizeof(long)) |
| 1644 | */ |
Benjamin Peterson | fda3355 | 2014-03-16 10:07:26 +0100 | [diff] [blame] | 1645 | #define INT_ALIGN (sizeof(s_int) - sizeof(int)) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1646 | #define FLOAT_ALIGN (sizeof(s_float) - sizeof(float)) |
| 1647 | #define DOUBLE_ALIGN (sizeof(s_double) - sizeof(double)) |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1648 | #define LONGDOUBLE_ALIGN (sizeof(s_long_double) - sizeof(long double)) |
| 1649 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1650 | /* #define CHAR_P_ALIGN (sizeof(s_char_p) - sizeof(char*)) */ |
| 1651 | #define VOID_P_ALIGN (sizeof(s_void_p) - sizeof(void*)) |
| 1652 | |
| 1653 | /* |
| 1654 | #ifdef HAVE_USABLE_WCHAR_T |
| 1655 | typedef struct { char c; wchar_t x; } s_wchar; |
| 1656 | typedef struct { char c; wchar_t *x; } s_wchar_p; |
| 1657 | |
| 1658 | #define WCHAR_ALIGN (sizeof(s_wchar) - sizeof(wchar_t)) |
| 1659 | #define WCHAR_P_ALIGN (sizeof(s_wchar_p) - sizeof(wchar_t*)) |
| 1660 | #endif |
| 1661 | */ |
| 1662 | |
| 1663 | #ifdef HAVE_LONG_LONG |
| 1664 | typedef struct { char c; PY_LONG_LONG x; } s_long_long; |
| 1665 | #define LONG_LONG_ALIGN (sizeof(s_long_long) - sizeof(PY_LONG_LONG)) |
| 1666 | #endif |
| 1667 | |
| 1668 | /* from ffi.h: |
| 1669 | typedef struct _ffi_type |
| 1670 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1671 | size_t size; |
| 1672 | unsigned short alignment; |
| 1673 | unsigned short type; |
| 1674 | struct _ffi_type **elements; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1675 | } ffi_type; |
| 1676 | */ |
| 1677 | |
| 1678 | /* align and size are bogus for void, but they must not be zero */ |
| 1679 | ffi_type ffi_type_void = { 1, 1, FFI_TYPE_VOID }; |
| 1680 | |
| 1681 | ffi_type ffi_type_uint8 = { 1, 1, FFI_TYPE_UINT8 }; |
| 1682 | ffi_type ffi_type_sint8 = { 1, 1, FFI_TYPE_SINT8 }; |
| 1683 | |
| 1684 | ffi_type ffi_type_uint16 = { 2, 2, FFI_TYPE_UINT16 }; |
| 1685 | ffi_type ffi_type_sint16 = { 2, 2, FFI_TYPE_SINT16 }; |
| 1686 | |
Benjamin Peterson | fda3355 | 2014-03-16 10:07:26 +0100 | [diff] [blame] | 1687 | ffi_type ffi_type_uint32 = { 4, INT_ALIGN, FFI_TYPE_UINT32 }; |
| 1688 | ffi_type ffi_type_sint32 = { 4, INT_ALIGN, FFI_TYPE_SINT32 }; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1689 | |
| 1690 | ffi_type ffi_type_uint64 = { 8, LONG_LONG_ALIGN, FFI_TYPE_UINT64 }; |
| 1691 | ffi_type ffi_type_sint64 = { 8, LONG_LONG_ALIGN, FFI_TYPE_SINT64 }; |
| 1692 | |
| 1693 | ffi_type ffi_type_float = { sizeof(float), FLOAT_ALIGN, FFI_TYPE_FLOAT }; |
| 1694 | ffi_type ffi_type_double = { sizeof(double), DOUBLE_ALIGN, FFI_TYPE_DOUBLE }; |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 1695 | |
| 1696 | #ifdef ffi_type_longdouble |
| 1697 | #undef ffi_type_longdouble |
| 1698 | #endif |
Georg Brandl | fcaf910 | 2008-07-16 02:17:56 +0000 | [diff] [blame] | 1699 | /* This is already defined on OSX */ |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1700 | ffi_type ffi_type_longdouble = { sizeof(long double), LONGDOUBLE_ALIGN, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1701 | FFI_TYPE_LONGDOUBLE }; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1702 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1703 | ffi_type ffi_type_pointer = { sizeof(void *), VOID_P_ALIGN, FFI_TYPE_POINTER }; |
| 1704 | |
| 1705 | /*---------------- EOF ----------------*/ |