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 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 382 | /* Same, but handling native long long. */ |
| 383 | |
| 384 | static int |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 385 | get_longlong(PyObject *v, long long *p) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 386 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 387 | long long x; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 388 | if (PyFloat_Check(v)) { |
| 389 | PyErr_SetString(PyExc_TypeError, |
| 390 | "int expected instead of float"); |
| 391 | return -1; |
| 392 | } |
| 393 | x = PyLong_AsUnsignedLongLongMask(v); |
| 394 | if (x == -1 && PyErr_Occurred()) |
| 395 | return -1; |
| 396 | *p = x; |
| 397 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 398 | } |
| 399 | |
| 400 | /* Same, but handling native unsigned long long. */ |
| 401 | |
| 402 | static int |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 403 | get_ulonglong(PyObject *v, unsigned long long *p) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 404 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 405 | unsigned long long x; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 406 | if (PyFloat_Check(v)) { |
| 407 | PyErr_SetString(PyExc_TypeError, |
| 408 | "int expected instead of float"); |
| 409 | return -1; |
| 410 | } |
| 411 | x = PyLong_AsUnsignedLongLongMask(v); |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 412 | if (x == (unsigned long long)-1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 413 | return -1; |
| 414 | *p = x; |
| 415 | return 0; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 416 | } |
| 417 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 418 | /***************************************************************** |
| 419 | * Integer fields, with bitfield support |
| 420 | */ |
| 421 | |
| 422 | /* how to decode the size field, for integer get/set functions */ |
| 423 | #define LOW_BIT(x) ((x) & 0xFFFF) |
| 424 | #define NUM_BITS(x) ((x) >> 16) |
| 425 | |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 426 | /* Doesn't work if NUM_BITS(size) == 0, but it never happens in SET() call. */ |
| 427 | #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] | 428 | |
| 429 | /* This macro CHANGES the first parameter IN PLACE. For proper sign handling, |
| 430 | we must first shift left, then right. |
| 431 | */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 432 | #define GET_BITFIELD(v, size) \ |
| 433 | if (NUM_BITS(size)) { \ |
| 434 | v <<= (sizeof(v)*8 - LOW_BIT(size) - NUM_BITS(size)); \ |
| 435 | v >>= (sizeof(v)*8 - NUM_BITS(size)); \ |
| 436 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 437 | |
| 438 | /* This macro RETURNS the first parameter with the bit field CHANGED. */ |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 439 | #define SET(type, x, v, size) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 440 | (NUM_BITS(size) ? \ |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 441 | ( ( (type)x & ~(BIT_MASK(type, size) << LOW_BIT(size)) ) | ( ((type)v & BIT_MASK(type, size)) << LOW_BIT(size) ) ) \ |
| 442 | : (type)v) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 443 | |
| 444 | /* byte swapping macros */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 445 | #define SWAP_2(v) \ |
| 446 | ( ( (v >> 8) & 0x00FF) | \ |
| 447 | ( (v << 8) & 0xFF00) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 448 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 449 | #define SWAP_4(v) \ |
| 450 | ( ( (v & 0x000000FF) << 24 ) | \ |
| 451 | ( (v & 0x0000FF00) << 8 ) | \ |
| 452 | ( (v & 0x00FF0000) >> 8 ) | \ |
| 453 | ( ((v >> 24) & 0xFF)) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 454 | |
| 455 | #ifdef _MSC_VER |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 456 | #define SWAP_8(v) \ |
| 457 | ( ( (v & 0x00000000000000FFL) << 56 ) | \ |
| 458 | ( (v & 0x000000000000FF00L) << 40 ) | \ |
| 459 | ( (v & 0x0000000000FF0000L) << 24 ) | \ |
| 460 | ( (v & 0x00000000FF000000L) << 8 ) | \ |
| 461 | ( (v & 0x000000FF00000000L) >> 8 ) | \ |
| 462 | ( (v & 0x0000FF0000000000L) >> 24 ) | \ |
| 463 | ( (v & 0x00FF000000000000L) >> 40 ) | \ |
| 464 | ( ((v >> 56) & 0xFF)) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 465 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 466 | #define SWAP_8(v) \ |
| 467 | ( ( (v & 0x00000000000000FFLL) << 56 ) | \ |
| 468 | ( (v & 0x000000000000FF00LL) << 40 ) | \ |
| 469 | ( (v & 0x0000000000FF0000LL) << 24 ) | \ |
| 470 | ( (v & 0x00000000FF000000LL) << 8 ) | \ |
| 471 | ( (v & 0x000000FF00000000LL) >> 8 ) | \ |
| 472 | ( (v & 0x0000FF0000000000LL) >> 24 ) | \ |
| 473 | ( (v & 0x00FF000000000000LL) >> 40 ) | \ |
| 474 | ( ((v >> 56) & 0xFF)) ) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 475 | #endif |
| 476 | |
| 477 | #define SWAP_INT SWAP_4 |
| 478 | |
| 479 | #if SIZEOF_LONG == 4 |
| 480 | # define SWAP_LONG SWAP_4 |
| 481 | #elif SIZEOF_LONG == 8 |
| 482 | # define SWAP_LONG SWAP_8 |
| 483 | #endif |
| 484 | /***************************************************************** |
| 485 | * The setter methods return an object which must be kept alive, to keep the |
| 486 | * data valid which has been stored in the memory block. The ctypes object |
| 487 | * instance inserts this object into its 'b_objects' list. |
| 488 | * |
| 489 | * For simple Python types like integers or characters, there is nothing that |
| 490 | * has to been kept alive, so Py_None is returned in these cases. But this |
| 491 | * makes inspecting the 'b_objects' list, which is accessible from Python for |
| 492 | * debugging, less useful. |
| 493 | * |
| 494 | * So, defining the _CTYPES_DEBUG_KEEP symbol returns the original value |
| 495 | * instead of Py_None. |
| 496 | */ |
| 497 | |
| 498 | #ifdef _CTYPES_DEBUG_KEEP |
| 499 | #define _RET(x) Py_INCREF(x); return x |
| 500 | #else |
| 501 | #define _RET(X) Py_INCREF(Py_None); return Py_None |
| 502 | #endif |
| 503 | |
| 504 | /***************************************************************** |
| 505 | * integer accessor methods, supporting bit fields |
| 506 | */ |
| 507 | |
| 508 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 509 | b_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 510 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 511 | long val; |
| 512 | if (get_long(value, &val) < 0) |
| 513 | return NULL; |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 514 | *(signed char *)ptr = SET(signed char, *(signed char *)ptr, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 515 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 516 | } |
| 517 | |
| 518 | |
| 519 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 520 | b_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 521 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 522 | signed char val = *(signed char *)ptr; |
| 523 | GET_BITFIELD(val, size); |
| 524 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 525 | } |
| 526 | |
| 527 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 528 | B_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 529 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 530 | unsigned long val; |
| 531 | if (get_ulong(value, &val) < 0) |
| 532 | return NULL; |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 533 | *(unsigned char *)ptr = SET(unsigned char, *(unsigned char*)ptr, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 534 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 535 | } |
| 536 | |
| 537 | |
| 538 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 539 | B_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 540 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 541 | unsigned char val = *(unsigned char *)ptr; |
| 542 | GET_BITFIELD(val, size); |
| 543 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 544 | } |
| 545 | |
| 546 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 547 | h_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 548 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 549 | long val; |
| 550 | short x; |
| 551 | if (get_long(value, &val) < 0) |
| 552 | return NULL; |
| 553 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 554 | x = SET(short, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 555 | memcpy(ptr, &x, sizeof(x)); |
| 556 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | |
| 560 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 561 | h_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 562 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 563 | long val; |
| 564 | short field; |
| 565 | if (get_long(value, &val) < 0) |
| 566 | return NULL; |
| 567 | memcpy(&field, ptr, sizeof(field)); |
| 568 | field = SWAP_2(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 569 | field = SET(short, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 570 | field = SWAP_2(field); |
| 571 | memcpy(ptr, &field, sizeof(field)); |
| 572 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 573 | } |
| 574 | |
| 575 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 576 | h_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 577 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 578 | short val; |
| 579 | memcpy(&val, ptr, sizeof(val)); |
| 580 | GET_BITFIELD(val, size); |
| 581 | return PyLong_FromLong((long)val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 582 | } |
| 583 | |
| 584 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 585 | h_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 586 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 587 | short val; |
| 588 | memcpy(&val, ptr, sizeof(val)); |
| 589 | val = SWAP_2(val); |
| 590 | GET_BITFIELD(val, size); |
| 591 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 592 | } |
| 593 | |
| 594 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 595 | H_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 596 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 597 | unsigned long val; |
| 598 | unsigned short x; |
| 599 | if (get_ulong(value, &val) < 0) |
| 600 | return NULL; |
| 601 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 602 | x = SET(unsigned short, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 603 | memcpy(ptr, &x, sizeof(x)); |
| 604 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 608 | H_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 609 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 610 | unsigned long val; |
| 611 | unsigned short field; |
| 612 | if (get_ulong(value, &val) < 0) |
| 613 | return NULL; |
| 614 | memcpy(&field, ptr, sizeof(field)); |
| 615 | field = SWAP_2(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 616 | field = SET(unsigned short, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 617 | field = SWAP_2(field); |
| 618 | memcpy(ptr, &field, sizeof(field)); |
| 619 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 620 | } |
| 621 | |
| 622 | |
| 623 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 624 | H_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 625 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 626 | unsigned short val; |
| 627 | memcpy(&val, ptr, sizeof(val)); |
| 628 | GET_BITFIELD(val, size); |
| 629 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 633 | H_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 634 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 635 | unsigned short val; |
| 636 | memcpy(&val, ptr, sizeof(val)); |
| 637 | val = SWAP_2(val); |
| 638 | GET_BITFIELD(val, size); |
| 639 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 640 | } |
| 641 | |
| 642 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 643 | i_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 644 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 645 | long val; |
| 646 | int x; |
| 647 | if (get_long(value, &val) < 0) |
| 648 | return NULL; |
| 649 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 650 | x = SET(int, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 651 | memcpy(ptr, &x, sizeof(x)); |
| 652 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 653 | } |
| 654 | |
| 655 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 656 | i_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 657 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 658 | long val; |
| 659 | int field; |
| 660 | if (get_long(value, &val) < 0) |
| 661 | return NULL; |
| 662 | memcpy(&field, ptr, sizeof(field)); |
| 663 | field = SWAP_INT(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 664 | field = SET(int, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 665 | field = SWAP_INT(field); |
| 666 | memcpy(ptr, &field, sizeof(field)); |
| 667 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 668 | } |
| 669 | |
| 670 | |
| 671 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 672 | i_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 673 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 674 | int val; |
| 675 | memcpy(&val, ptr, sizeof(val)); |
| 676 | GET_BITFIELD(val, size); |
| 677 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 678 | } |
| 679 | |
| 680 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 681 | i_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 682 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 683 | int val; |
| 684 | memcpy(&val, ptr, sizeof(val)); |
| 685 | val = SWAP_INT(val); |
| 686 | GET_BITFIELD(val, size); |
| 687 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 688 | } |
| 689 | |
| 690 | #ifdef MS_WIN32 |
| 691 | /* short BOOL - VARIANT_BOOL */ |
| 692 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 693 | vBOOL_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 694 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 695 | switch (PyObject_IsTrue(value)) { |
| 696 | case -1: |
| 697 | return NULL; |
| 698 | case 0: |
| 699 | *(short int *)ptr = VARIANT_FALSE; |
| 700 | _RET(value); |
| 701 | default: |
| 702 | *(short int *)ptr = VARIANT_TRUE; |
| 703 | _RET(value); |
| 704 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 705 | } |
| 706 | |
| 707 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 708 | vBOOL_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 709 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 710 | return PyBool_FromLong((long)*(short int *)ptr); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 711 | } |
| 712 | #endif |
| 713 | |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 714 | static PyObject * |
Christian Heimes | dd15f6c | 2008-03-16 00:07:10 +0000 | [diff] [blame] | 715 | bool_set(void *ptr, PyObject *value, Py_ssize_t size) |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 716 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 717 | switch (PyObject_IsTrue(value)) { |
| 718 | case -1: |
| 719 | return NULL; |
| 720 | case 0: |
Benjamin Peterson | a9296e7 | 2016-09-07 11:06:17 -0700 | [diff] [blame] | 721 | *(_Bool *)ptr = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 722 | _RET(value); |
| 723 | default: |
Benjamin Peterson | a9296e7 | 2016-09-07 11:06:17 -0700 | [diff] [blame] | 724 | *(_Bool *)ptr = 1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 725 | _RET(value); |
| 726 | } |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 727 | } |
| 728 | |
| 729 | static PyObject * |
Christian Heimes | dd15f6c | 2008-03-16 00:07:10 +0000 | [diff] [blame] | 730 | bool_get(void *ptr, Py_ssize_t size) |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 731 | { |
Benjamin Peterson | a9296e7 | 2016-09-07 11:06:17 -0700 | [diff] [blame] | 732 | return PyBool_FromLong((long)*(_Bool *)ptr); |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 733 | } |
| 734 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 735 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 736 | I_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 737 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 738 | unsigned long val; |
| 739 | unsigned int x; |
| 740 | if (get_ulong(value, &val) < 0) |
| 741 | return NULL; |
| 742 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 743 | x = SET(unsigned int, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 744 | memcpy(ptr, &x, sizeof(x)); |
| 745 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 746 | } |
| 747 | |
| 748 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 749 | I_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 750 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 751 | unsigned long val; |
| 752 | unsigned int field; |
| 753 | if (get_ulong(value, &val) < 0) |
| 754 | return NULL; |
| 755 | memcpy(&field, ptr, sizeof(field)); |
Victor Stinner | 9c631a0 | 2015-07-29 14:33:52 +0200 | [diff] [blame] | 756 | field = SWAP_INT(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 757 | field = SET(unsigned int, field, (unsigned int)val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 758 | field = SWAP_INT(field); |
| 759 | memcpy(ptr, &field, sizeof(field)); |
| 760 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 761 | } |
| 762 | |
| 763 | |
| 764 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 765 | I_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 766 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 767 | unsigned int val; |
| 768 | memcpy(&val, ptr, sizeof(val)); |
| 769 | GET_BITFIELD(val, size); |
| 770 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 771 | } |
| 772 | |
| 773 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 774 | I_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 775 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 776 | unsigned int val; |
| 777 | memcpy(&val, ptr, sizeof(val)); |
| 778 | val = SWAP_INT(val); |
| 779 | GET_BITFIELD(val, size); |
| 780 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 781 | } |
| 782 | |
| 783 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 784 | l_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 785 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 786 | long val; |
| 787 | long x; |
| 788 | if (get_long(value, &val) < 0) |
| 789 | return NULL; |
| 790 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 791 | x = SET(long, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 792 | memcpy(ptr, &x, sizeof(x)); |
| 793 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 794 | } |
| 795 | |
| 796 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 797 | l_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 798 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 799 | long val; |
| 800 | long field; |
| 801 | if (get_long(value, &val) < 0) |
| 802 | return NULL; |
| 803 | memcpy(&field, ptr, sizeof(field)); |
| 804 | field = SWAP_LONG(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 805 | field = SET(long, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 806 | field = SWAP_LONG(field); |
| 807 | memcpy(ptr, &field, sizeof(field)); |
| 808 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 809 | } |
| 810 | |
| 811 | |
| 812 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 813 | l_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 814 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 815 | long val; |
| 816 | memcpy(&val, ptr, sizeof(val)); |
| 817 | GET_BITFIELD(val, size); |
| 818 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 819 | } |
| 820 | |
| 821 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 822 | l_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 823 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 824 | long val; |
| 825 | memcpy(&val, ptr, sizeof(val)); |
| 826 | val = SWAP_LONG(val); |
| 827 | GET_BITFIELD(val, size); |
| 828 | return PyLong_FromLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 829 | } |
| 830 | |
| 831 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 832 | L_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 833 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 834 | unsigned long val; |
| 835 | unsigned long x; |
| 836 | if (get_ulong(value, &val) < 0) |
| 837 | return NULL; |
| 838 | memcpy(&x, ptr, sizeof(x)); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 839 | x = SET(unsigned long, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 840 | memcpy(ptr, &x, sizeof(x)); |
| 841 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 845 | L_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 846 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 847 | unsigned long val; |
| 848 | unsigned long field; |
| 849 | if (get_ulong(value, &val) < 0) |
| 850 | return NULL; |
| 851 | memcpy(&field, ptr, sizeof(field)); |
| 852 | field = SWAP_LONG(field); |
Meador Inge | 60c2266 | 2012-07-19 00:01:22 -0500 | [diff] [blame] | 853 | field = SET(unsigned long, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 854 | field = SWAP_LONG(field); |
| 855 | memcpy(ptr, &field, sizeof(field)); |
| 856 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 857 | } |
| 858 | |
| 859 | |
| 860 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 861 | L_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 862 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 863 | unsigned long val; |
| 864 | memcpy(&val, ptr, sizeof(val)); |
| 865 | GET_BITFIELD(val, size); |
| 866 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 867 | } |
| 868 | |
| 869 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 870 | L_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 871 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 872 | unsigned long val; |
| 873 | memcpy(&val, ptr, sizeof(val)); |
| 874 | val = SWAP_LONG(val); |
| 875 | GET_BITFIELD(val, size); |
| 876 | return PyLong_FromUnsignedLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 877 | } |
| 878 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 879 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 880 | q_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 881 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 882 | long long val; |
| 883 | long long x; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 884 | if (get_longlong(value, &val) < 0) |
| 885 | return NULL; |
| 886 | memcpy(&x, ptr, sizeof(x)); |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 887 | x = SET(long long, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 888 | memcpy(ptr, &x, sizeof(x)); |
| 889 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 890 | } |
| 891 | |
| 892 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 893 | q_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 894 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 895 | long long val; |
| 896 | long long field; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 897 | if (get_longlong(value, &val) < 0) |
| 898 | return NULL; |
| 899 | memcpy(&field, ptr, sizeof(field)); |
| 900 | field = SWAP_8(field); |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 901 | field = SET(long long, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 902 | field = SWAP_8(field); |
| 903 | memcpy(ptr, &field, sizeof(field)); |
| 904 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 905 | } |
| 906 | |
| 907 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 908 | q_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 909 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 910 | long long val; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 911 | memcpy(&val, ptr, sizeof(val)); |
| 912 | GET_BITFIELD(val, size); |
| 913 | return PyLong_FromLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 914 | } |
| 915 | |
| 916 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 917 | q_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 918 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 919 | long long val; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 920 | memcpy(&val, ptr, sizeof(val)); |
| 921 | val = SWAP_8(val); |
| 922 | GET_BITFIELD(val, size); |
| 923 | return PyLong_FromLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 924 | } |
| 925 | |
| 926 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 927 | Q_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 928 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 929 | unsigned long long val; |
| 930 | unsigned long long x; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 931 | if (get_ulonglong(value, &val) < 0) |
| 932 | return NULL; |
| 933 | memcpy(&x, ptr, sizeof(x)); |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 934 | x = SET(long long, x, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 935 | memcpy(ptr, &x, sizeof(x)); |
| 936 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 937 | } |
| 938 | |
| 939 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 940 | Q_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 941 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 942 | unsigned long long val; |
| 943 | unsigned long long field; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 944 | if (get_ulonglong(value, &val) < 0) |
| 945 | return NULL; |
| 946 | memcpy(&field, ptr, sizeof(field)); |
| 947 | field = SWAP_8(field); |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 948 | field = SET(unsigned long long, field, val, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 949 | field = SWAP_8(field); |
| 950 | memcpy(ptr, &field, sizeof(field)); |
| 951 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 952 | } |
| 953 | |
| 954 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 955 | Q_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 956 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 957 | unsigned long long val; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 958 | memcpy(&val, ptr, sizeof(val)); |
| 959 | GET_BITFIELD(val, size); |
| 960 | return PyLong_FromUnsignedLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 961 | } |
| 962 | |
| 963 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 964 | Q_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 965 | { |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 966 | unsigned long long val; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 967 | memcpy(&val, ptr, sizeof(val)); |
| 968 | val = SWAP_8(val); |
| 969 | GET_BITFIELD(val, size); |
| 970 | return PyLong_FromUnsignedLongLong(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 971 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 972 | |
| 973 | /***************************************************************** |
| 974 | * non-integer accessor methods, not supporting bit fields |
| 975 | */ |
| 976 | |
| 977 | |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 978 | static PyObject * |
Thomas Heller | ff72122 | 2008-01-17 18:46:55 +0000 | [diff] [blame] | 979 | g_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 980 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 981 | long double x; |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 982 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 983 | x = PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 984 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 985 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 986 | memcpy(ptr, &x, sizeof(long double)); |
| 987 | _RET(value); |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 988 | } |
| 989 | |
| 990 | static PyObject * |
Thomas Heller | ff72122 | 2008-01-17 18:46:55 +0000 | [diff] [blame] | 991 | g_get(void *ptr, Py_ssize_t size) |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 992 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 993 | long double val; |
| 994 | memcpy(&val, ptr, sizeof(long double)); |
| 995 | return PyFloat_FromDouble(val); |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 996 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 997 | |
| 998 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 999 | d_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1000 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1001 | double x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1002 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1003 | x = PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1004 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1005 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1006 | memcpy(ptr, &x, sizeof(double)); |
| 1007 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1008 | } |
| 1009 | |
| 1010 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1011 | d_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1012 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1013 | double val; |
| 1014 | memcpy(&val, ptr, sizeof(val)); |
| 1015 | return PyFloat_FromDouble(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1016 | } |
| 1017 | |
| 1018 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1019 | d_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1020 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1021 | double x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1022 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1023 | x = PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1024 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1025 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1026 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1027 | if (_PyFloat_Pack8(x, (unsigned char *)ptr, 1)) |
| 1028 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1029 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1030 | if (_PyFloat_Pack8(x, (unsigned char *)ptr, 0)) |
| 1031 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1032 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1033 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1034 | } |
| 1035 | |
| 1036 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1037 | d_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1038 | { |
| 1039 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1040 | return PyFloat_FromDouble(_PyFloat_Unpack8(ptr, 1)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1041 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1042 | return PyFloat_FromDouble(_PyFloat_Unpack8(ptr, 0)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1043 | #endif |
| 1044 | } |
| 1045 | |
| 1046 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1047 | f_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1048 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1049 | float x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1050 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1051 | x = (float)PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1052 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1053 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1054 | memcpy(ptr, &x, sizeof(x)); |
| 1055 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1056 | } |
| 1057 | |
| 1058 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1059 | f_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1060 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1061 | float val; |
| 1062 | memcpy(&val, ptr, sizeof(val)); |
| 1063 | return PyFloat_FromDouble(val); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1064 | } |
| 1065 | |
| 1066 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1067 | f_set_sw(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1068 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1069 | float x; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1070 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1071 | x = (float)PyFloat_AsDouble(value); |
Meador Inge | 031e25b | 2012-05-28 14:21:16 -0500 | [diff] [blame] | 1072 | if (x == -1 && PyErr_Occurred()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1073 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1074 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1075 | if (_PyFloat_Pack4(x, (unsigned char *)ptr, 1)) |
| 1076 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1077 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1078 | if (_PyFloat_Pack4(x, (unsigned char *)ptr, 0)) |
| 1079 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1080 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1081 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1082 | } |
| 1083 | |
| 1084 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1085 | f_get_sw(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1086 | { |
| 1087 | #ifdef WORDS_BIGENDIAN |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1088 | return PyFloat_FromDouble(_PyFloat_Unpack4(ptr, 1)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1089 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1090 | return PyFloat_FromDouble(_PyFloat_Unpack4(ptr, 0)); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1091 | #endif |
| 1092 | } |
| 1093 | |
| 1094 | /* |
| 1095 | py_object refcounts: |
| 1096 | |
| 1097 | 1. If we have a py_object instance, O_get must Py_INCREF the returned |
| 1098 | object, of course. If O_get is called from a function result, no py_object |
| 1099 | instance is created - so callproc.c::GetResult has to call Py_DECREF. |
| 1100 | |
| 1101 | 2. The memory block in py_object owns a refcount. So, py_object must call |
| 1102 | Py_DECREF on destruction. Maybe only when b_needsfree is non-zero. |
| 1103 | */ |
| 1104 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1105 | O_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1106 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1107 | PyObject *ob = *(PyObject **)ptr; |
| 1108 | if (ob == NULL) { |
| 1109 | if (!PyErr_Occurred()) |
| 1110 | /* Set an error if not yet set */ |
| 1111 | PyErr_SetString(PyExc_ValueError, |
| 1112 | "PyObject is NULL"); |
| 1113 | return NULL; |
| 1114 | } |
| 1115 | Py_INCREF(ob); |
| 1116 | return ob; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1117 | } |
| 1118 | |
| 1119 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1120 | O_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1121 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1122 | /* Hm, does the memory block need it's own refcount or not? */ |
| 1123 | *(PyObject **)ptr = value; |
| 1124 | Py_INCREF(value); |
| 1125 | return value; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1126 | } |
| 1127 | |
| 1128 | |
| 1129 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1130 | c_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1131 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1132 | if (PyBytes_Check(value) && PyBytes_GET_SIZE(value) == 1) { |
| 1133 | *(char *)ptr = PyBytes_AS_STRING(value)[0]; |
| 1134 | _RET(value); |
| 1135 | } |
| 1136 | if (PyByteArray_Check(value) && PyByteArray_GET_SIZE(value) == 1) { |
| 1137 | *(char *)ptr = PyByteArray_AS_STRING(value)[0]; |
| 1138 | _RET(value); |
| 1139 | } |
| 1140 | if (PyLong_Check(value)) |
| 1141 | { |
| 1142 | long longval = PyLong_AS_LONG(value); |
| 1143 | if (longval < 0 || longval >= 256) |
| 1144 | goto error; |
| 1145 | *(char *)ptr = (char)longval; |
| 1146 | _RET(value); |
| 1147 | } |
Thomas Heller | 19b5254 | 2007-07-13 12:52:51 +0000 | [diff] [blame] | 1148 | error: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1149 | PyErr_Format(PyExc_TypeError, |
Serhiy Storchaka | 4f06d60 | 2014-08-09 09:33:05 +0300 | [diff] [blame] | 1150 | "one character bytes, bytearray or integer expected"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1151 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1152 | } |
| 1153 | |
| 1154 | |
| 1155 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1156 | c_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1157 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1158 | return PyBytes_FromStringAndSize((char *)ptr, 1); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1159 | } |
| 1160 | |
| 1161 | #ifdef CTYPES_UNICODE |
| 1162 | /* u - a single wchar_t character */ |
| 1163 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1164 | u_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1165 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1166 | Py_ssize_t len; |
Victor Stinner | 749261e | 2010-10-02 11:25:35 +0000 | [diff] [blame] | 1167 | wchar_t chars[2]; |
Victor Stinner | cf44883 | 2010-07-28 00:15:03 +0000 | [diff] [blame] | 1168 | if (!PyUnicode_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1169 | PyErr_Format(PyExc_TypeError, |
| 1170 | "unicode string expected instead of %s instance", |
| 1171 | value->ob_type->tp_name); |
| 1172 | return NULL; |
| 1173 | } else |
| 1174 | Py_INCREF(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1175 | |
Martin v. Löwis | 4d0d471 | 2010-12-03 20:14:31 +0000 | [diff] [blame] | 1176 | len = PyUnicode_AsWideChar(value, chars, 2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1177 | if (len != 1) { |
| 1178 | Py_DECREF(value); |
| 1179 | PyErr_SetString(PyExc_TypeError, |
| 1180 | "one character unicode string expected"); |
| 1181 | return NULL; |
| 1182 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1183 | |
Victor Stinner | 749261e | 2010-10-02 11:25:35 +0000 | [diff] [blame] | 1184 | *(wchar_t *)ptr = chars[0]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1185 | Py_DECREF(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1186 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1187 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1188 | } |
| 1189 | |
| 1190 | |
| 1191 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1192 | u_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1193 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1194 | return PyUnicode_FromWideChar((wchar_t *)ptr, 1); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1195 | } |
| 1196 | |
| 1197 | /* U - a unicode string */ |
| 1198 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1199 | U_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1200 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1201 | Py_ssize_t len; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1202 | wchar_t *p; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1203 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1204 | size /= sizeof(wchar_t); /* we count character units here, not bytes */ |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1205 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1206 | /* We need 'result' to be able to count the characters with wcslen, |
| 1207 | since ptr may not be NUL terminated. If the length is smaller (if |
| 1208 | it was actually NUL terminated, we construct a new one and throw |
| 1209 | away the result. |
| 1210 | */ |
| 1211 | /* chop off at the first NUL character, if any. */ |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1212 | p = (wchar_t*)ptr; |
| 1213 | for (len = 0; len < size; ++len) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1214 | if (!p[len]) |
| 1215 | break; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1216 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1217 | |
| 1218 | return PyUnicode_FromWideChar((wchar_t *)ptr, len); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1219 | } |
| 1220 | |
| 1221 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1222 | U_set(void *ptr, PyObject *value, Py_ssize_t length) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1223 | { |
Victor Stinner | ea90e0f | 2011-11-21 02:11:26 +0100 | [diff] [blame] | 1224 | Py_UNICODE *wstr; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1225 | Py_ssize_t size; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1226 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1227 | /* It's easier to calculate in characters than in bytes */ |
| 1228 | length /= sizeof(wchar_t); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1229 | |
Victor Stinner | cf44883 | 2010-07-28 00:15:03 +0000 | [diff] [blame] | 1230 | if (!PyUnicode_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1231 | PyErr_Format(PyExc_TypeError, |
| 1232 | "unicode string expected instead of %s instance", |
| 1233 | value->ob_type->tp_name); |
| 1234 | return NULL; |
Serhiy Storchaka | adef646 | 2016-06-16 22:08:46 +0300 | [diff] [blame] | 1235 | } |
Victor Stinner | ea90e0f | 2011-11-21 02:11:26 +0100 | [diff] [blame] | 1236 | |
| 1237 | wstr = PyUnicode_AsUnicodeAndSize(value, &size); |
| 1238 | if (wstr == NULL) |
| 1239 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1240 | if (size > length) { |
| 1241 | PyErr_Format(PyExc_ValueError, |
| 1242 | "string too long (%zd, maximum length %zd)", |
| 1243 | size, length); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1244 | return NULL; |
| 1245 | } else if (size < length-1) |
| 1246 | /* copy terminating NUL character if there is space */ |
| 1247 | size += 1; |
Brett Cannon | 845f784 | 2013-07-25 17:34:00 -0400 | [diff] [blame] | 1248 | |
| 1249 | if (PyUnicode_AsWideChar(value, (wchar_t *)ptr, size) == -1) { |
| 1250 | return NULL; |
| 1251 | } |
| 1252 | |
Serhiy Storchaka | adef646 | 2016-06-16 22:08:46 +0300 | [diff] [blame] | 1253 | Py_INCREF(value); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1254 | return value; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1255 | } |
| 1256 | |
| 1257 | #endif |
| 1258 | |
| 1259 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1260 | s_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1261 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1262 | Py_ssize_t i; |
| 1263 | char *p; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1264 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1265 | p = (char *)ptr; |
| 1266 | for (i = 0; i < size; ++i) { |
| 1267 | if (*p++ == '\0') |
| 1268 | break; |
| 1269 | } |
Thomas Heller | 19b5254 | 2007-07-13 12:52:51 +0000 | [diff] [blame] | 1270 | |
Victor Stinner | da0eca4 | 2010-06-11 21:50:30 +0000 | [diff] [blame] | 1271 | return PyBytes_FromStringAndSize((char *)ptr, (Py_ssize_t)i); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1272 | } |
| 1273 | |
| 1274 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1275 | s_set(void *ptr, PyObject *value, Py_ssize_t length) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1276 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1277 | char *data; |
| 1278 | Py_ssize_t size; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1279 | |
Serhiy Storchaka | adef646 | 2016-06-16 22:08:46 +0300 | [diff] [blame] | 1280 | if(!PyBytes_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1281 | PyErr_Format(PyExc_TypeError, |
Serhiy Storchaka | 4f06d60 | 2014-08-09 09:33:05 +0300 | [diff] [blame] | 1282 | "expected bytes, %s found", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1283 | value->ob_type->tp_name); |
| 1284 | return NULL; |
| 1285 | } |
Thomas Heller | e5095e1 | 2007-07-13 11:19:35 +0000 | [diff] [blame] | 1286 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1287 | data = PyBytes_AS_STRING(value); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1288 | size = strlen(data); /* XXX Why not Py_SIZE(value)? */ |
| 1289 | if (size < length) { |
Serhiy Storchaka | adef646 | 2016-06-16 22:08:46 +0300 | [diff] [blame] | 1290 | /* This will copy the terminating NUL character |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1291 | * if there is space for it. |
| 1292 | */ |
| 1293 | ++size; |
| 1294 | } else if (size > length) { |
| 1295 | PyErr_Format(PyExc_ValueError, |
Serhiy Storchaka | 4f06d60 | 2014-08-09 09:33:05 +0300 | [diff] [blame] | 1296 | "bytes too long (%zd, maximum length %zd)", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1297 | size, length); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1298 | return NULL; |
| 1299 | } |
| 1300 | /* Also copy the terminating NUL character if there is space */ |
| 1301 | memcpy((char *)ptr, data, size); |
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 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1304 | } |
| 1305 | |
| 1306 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1307 | z_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1308 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1309 | if (value == Py_None) { |
| 1310 | *(char **)ptr = NULL; |
| 1311 | Py_INCREF(value); |
| 1312 | return value; |
| 1313 | } |
| 1314 | if (PyBytes_Check(value)) { |
| 1315 | *(char **)ptr = PyBytes_AsString(value); |
| 1316 | Py_INCREF(value); |
| 1317 | return value; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1318 | } else if (PyLong_Check(value)) { |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1319 | #if SIZEOF_VOID_P == SIZEOF_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1320 | *(char **)ptr = (char *)PyLong_AsUnsignedLongLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1321 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1322 | *(char **)ptr = (char *)PyLong_AsUnsignedLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1323 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1324 | _RET(value); |
| 1325 | } |
| 1326 | PyErr_Format(PyExc_TypeError, |
Ezio Melotti | acd5f7b | 2012-01-18 05:42:39 +0200 | [diff] [blame] | 1327 | "bytes or integer address expected instead of %s instance", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1328 | value->ob_type->tp_name); |
| 1329 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1330 | } |
| 1331 | |
| 1332 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1333 | z_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1334 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1335 | /* XXX What about invalid pointers ??? */ |
| 1336 | if (*(void **)ptr) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1337 | return PyBytes_FromStringAndSize(*(char **)ptr, |
| 1338 | strlen(*(char **)ptr)); |
| 1339 | } else { |
| 1340 | Py_INCREF(Py_None); |
| 1341 | return Py_None; |
| 1342 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1343 | } |
| 1344 | |
| 1345 | #ifdef CTYPES_UNICODE |
| 1346 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1347 | Z_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1348 | { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1349 | PyObject *keep; |
| 1350 | wchar_t *buffer; |
| 1351 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1352 | if (value == Py_None) { |
| 1353 | *(wchar_t **)ptr = NULL; |
| 1354 | Py_INCREF(value); |
| 1355 | return value; |
| 1356 | } |
Martin Panter | f0c0318 | 2015-12-12 06:57:13 +0000 | [diff] [blame] | 1357 | if (PyLong_Check(value)) { |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1358 | #if SIZEOF_VOID_P == SIZEOF_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1359 | *(wchar_t **)ptr = (wchar_t *)PyLong_AsUnsignedLongLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1360 | #else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1361 | *(wchar_t **)ptr = (wchar_t *)PyLong_AsUnsignedLongMask(value); |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1362 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1363 | Py_INCREF(Py_None); |
| 1364 | return Py_None; |
| 1365 | } |
Victor Stinner | cf44883 | 2010-07-28 00:15:03 +0000 | [diff] [blame] | 1366 | if (!PyUnicode_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1367 | PyErr_Format(PyExc_TypeError, |
| 1368 | "unicode string or integer address expected instead of %s instance", |
| 1369 | value->ob_type->tp_name); |
| 1370 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1371 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1372 | |
| 1373 | /* We must create a wchar_t* buffer from the unicode object, |
| 1374 | and keep it alive */ |
| 1375 | buffer = PyUnicode_AsWideCharString(value, NULL); |
| 1376 | if (!buffer) |
| 1377 | return NULL; |
| 1378 | keep = PyCapsule_New(buffer, CTYPES_CFIELD_CAPSULE_NAME_PYMEM, pymem_destructor); |
| 1379 | if (!keep) { |
| 1380 | PyMem_Free(buffer); |
| 1381 | return NULL; |
| 1382 | } |
| 1383 | *(wchar_t **)ptr = buffer; |
| 1384 | return keep; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1385 | } |
| 1386 | |
| 1387 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1388 | Z_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1389 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1390 | wchar_t *p; |
| 1391 | p = *(wchar_t **)ptr; |
| 1392 | if (p) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1393 | return PyUnicode_FromWideChar(p, wcslen(p)); |
| 1394 | } else { |
| 1395 | Py_INCREF(Py_None); |
| 1396 | return Py_None; |
| 1397 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1398 | } |
| 1399 | #endif |
| 1400 | |
| 1401 | #ifdef MS_WIN32 |
| 1402 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1403 | BSTR_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1404 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1405 | BSTR bstr; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1406 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1407 | /* convert value into a PyUnicodeObject or NULL */ |
| 1408 | if (Py_None == value) { |
| 1409 | value = NULL; |
Serhiy Storchaka | adef646 | 2016-06-16 22:08:46 +0300 | [diff] [blame] | 1410 | } else if (!PyUnicode_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1411 | PyErr_Format(PyExc_TypeError, |
| 1412 | "unicode string expected instead of %s instance", |
| 1413 | value->ob_type->tp_name); |
| 1414 | return NULL; |
| 1415 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1416 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1417 | /* create a BSTR from value */ |
| 1418 | if (value) { |
Victor Stinner | 3335447 | 2011-11-21 02:01:41 +0100 | [diff] [blame] | 1419 | wchar_t* wvalue; |
Steve Dower | ef42dae | 2015-03-24 23:28:54 -0700 | [diff] [blame] | 1420 | Py_ssize_t wsize; |
| 1421 | wvalue = PyUnicode_AsUnicodeAndSize(value, &wsize); |
Victor Stinner | ea90e0f | 2011-11-21 02:11:26 +0100 | [diff] [blame] | 1422 | if (wvalue == NULL) |
| 1423 | return NULL; |
Steve Dower | ef42dae | 2015-03-24 23:28:54 -0700 | [diff] [blame] | 1424 | if ((unsigned) wsize != wsize) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1425 | PyErr_SetString(PyExc_ValueError, "String too long for BSTR"); |
| 1426 | return NULL; |
| 1427 | } |
Steve Dower | ef42dae | 2015-03-24 23:28:54 -0700 | [diff] [blame] | 1428 | bstr = SysAllocStringLen(wvalue, (unsigned)wsize); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1429 | } else |
| 1430 | bstr = NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1431 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1432 | /* free the previous contents, if any */ |
| 1433 | if (*(BSTR *)ptr) |
| 1434 | SysFreeString(*(BSTR *)ptr); |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1435 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1436 | /* and store it */ |
| 1437 | *(BSTR *)ptr = bstr; |
| 1438 | |
| 1439 | /* We don't need to keep any other object */ |
| 1440 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1441 | } |
| 1442 | |
| 1443 | |
| 1444 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1445 | BSTR_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1446 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1447 | BSTR p; |
| 1448 | p = *(BSTR *)ptr; |
| 1449 | if (p) |
| 1450 | return PyUnicode_FromWideChar(p, SysStringLen(p)); |
| 1451 | else { |
| 1452 | /* Hm, it seems NULL pointer and zero length string are the |
| 1453 | same in BSTR, see Don Box, p 81 |
| 1454 | */ |
| 1455 | Py_INCREF(Py_None); |
| 1456 | return Py_None; |
| 1457 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1458 | } |
| 1459 | #endif |
| 1460 | |
| 1461 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1462 | P_set(void *ptr, PyObject *value, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1463 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1464 | void *v; |
| 1465 | if (value == Py_None) { |
| 1466 | *(void **)ptr = NULL; |
| 1467 | _RET(value); |
| 1468 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1469 | |
Martin Panter | f0c0318 | 2015-12-12 06:57:13 +0000 | [diff] [blame] | 1470 | if (!PyLong_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1471 | PyErr_SetString(PyExc_TypeError, |
| 1472 | "cannot be converted to pointer"); |
| 1473 | return NULL; |
| 1474 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1475 | |
| 1476 | #if SIZEOF_VOID_P <= SIZEOF_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1477 | v = (void *)PyLong_AsUnsignedLongMask(value); |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1478 | #else |
Benjamin Peterson | ed4aa83 | 2016-09-05 17:44:18 -0700 | [diff] [blame] | 1479 | #if SIZEOF_LONG_LONG < SIZEOF_VOID_P |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 1480 | # error "PyLong_AsVoidPtr: sizeof(long long) < sizeof(void*)" |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1481 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1482 | v = (void *)PyLong_AsUnsignedLongLongMask(value); |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1483 | #endif |
| 1484 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1485 | if (PyErr_Occurred()) |
| 1486 | return NULL; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1487 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1488 | *(void **)ptr = v; |
| 1489 | _RET(value); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1490 | } |
| 1491 | |
| 1492 | static PyObject * |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1493 | P_get(void *ptr, Py_ssize_t size) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1494 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1495 | if (*(void **)ptr == NULL) { |
| 1496 | Py_INCREF(Py_None); |
| 1497 | return Py_None; |
| 1498 | } |
| 1499 | return PyLong_FromVoidPtr(*(void **)ptr); |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1500 | } |
| 1501 | |
| 1502 | static struct fielddesc formattable[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1503 | { 's', s_set, s_get, &ffi_type_pointer}, |
| 1504 | { 'b', b_set, b_get, &ffi_type_schar}, |
| 1505 | { 'B', B_set, B_get, &ffi_type_uchar}, |
| 1506 | { 'c', c_set, c_get, &ffi_type_schar}, |
| 1507 | { 'd', d_set, d_get, &ffi_type_double, d_set_sw, d_get_sw}, |
| 1508 | { 'g', g_set, g_get, &ffi_type_longdouble}, |
| 1509 | { 'f', f_set, f_get, &ffi_type_float, f_set_sw, f_get_sw}, |
| 1510 | { 'h', h_set, h_get, &ffi_type_sshort, h_set_sw, h_get_sw}, |
| 1511 | { 'H', H_set, H_get, &ffi_type_ushort, H_set_sw, H_get_sw}, |
| 1512 | { 'i', i_set, i_get, &ffi_type_sint, i_set_sw, i_get_sw}, |
| 1513 | { '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] | 1514 | /* XXX Hm, sizeof(int) == sizeof(long) doesn't hold on every platform */ |
| 1515 | /* As soon as we can get rid of the type codes, this is no longer a problem */ |
| 1516 | #if SIZEOF_LONG == 4 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1517 | { 'l', l_set, l_get, &ffi_type_sint32, l_set_sw, l_get_sw}, |
| 1518 | { '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] | 1519 | #elif SIZEOF_LONG == 8 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1520 | { 'l', l_set, l_get, &ffi_type_sint64, l_set_sw, l_get_sw}, |
| 1521 | { '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] | 1522 | #else |
| 1523 | # error |
| 1524 | #endif |
Guido van Rossum | 8ce8a78 | 2007-11-01 19:42:39 +0000 | [diff] [blame] | 1525 | #if SIZEOF_LONG_LONG == 8 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1526 | { 'q', q_set, q_get, &ffi_type_sint64, q_set_sw, q_get_sw}, |
| 1527 | { '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] | 1528 | #else |
| 1529 | # error |
| 1530 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1531 | { 'P', P_set, P_get, &ffi_type_pointer}, |
| 1532 | { 'z', z_set, z_get, &ffi_type_pointer}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1533 | #ifdef CTYPES_UNICODE |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1534 | { 'u', u_set, u_get, NULL}, /* ffi_type set later */ |
| 1535 | { 'U', U_set, U_get, &ffi_type_pointer}, |
| 1536 | { 'Z', Z_set, Z_get, &ffi_type_pointer}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1537 | #endif |
| 1538 | #ifdef MS_WIN32 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1539 | { 'X', BSTR_set, BSTR_get, &ffi_type_pointer}, |
| 1540 | { 'v', vBOOL_set, vBOOL_get, &ffi_type_sshort}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1541 | #endif |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1542 | #if SIZEOF__BOOL == 1 |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1543 | { '?', 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] | 1544 | #elif SIZEOF__BOOL == SIZEOF_SHORT |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1545 | { '?', bool_set, bool_get, &ffi_type_ushort}, |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 1546 | #elif SIZEOF__BOOL == SIZEOF_INT |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1547 | { '?', 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] | 1548 | #elif SIZEOF__BOOL == SIZEOF_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1549 | { '?', 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] | 1550 | #elif SIZEOF__BOOL == SIZEOF_LONG_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1551 | { '?', 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] | 1552 | #endif /* SIZEOF__BOOL */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1553 | { 'O', O_set, O_get, &ffi_type_pointer}, |
| 1554 | { 0, NULL, NULL, NULL}, |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1555 | }; |
| 1556 | |
| 1557 | /* |
| 1558 | Ideas: Implement VARIANT in this table, using 'V' code. |
| 1559 | Use '?' as code for BOOL. |
| 1560 | */ |
| 1561 | |
| 1562 | struct fielddesc * |
Thomas Heller | 34596a9 | 2009-04-24 20:50:00 +0000 | [diff] [blame] | 1563 | _ctypes_get_fielddesc(const char *fmt) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1564 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1565 | static int initialized = 0; |
| 1566 | struct fielddesc *table = formattable; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1567 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1568 | if (!initialized) { |
| 1569 | initialized = 1; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1570 | #ifdef CTYPES_UNICODE |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1571 | if (sizeof(wchar_t) == sizeof(short)) |
| 1572 | _ctypes_get_fielddesc("u")->pffi_type = &ffi_type_sshort; |
| 1573 | else if (sizeof(wchar_t) == sizeof(int)) |
| 1574 | _ctypes_get_fielddesc("u")->pffi_type = &ffi_type_sint; |
| 1575 | else if (sizeof(wchar_t) == sizeof(long)) |
| 1576 | _ctypes_get_fielddesc("u")->pffi_type = &ffi_type_slong; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1577 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1578 | } |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1579 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1580 | for (; table->code; ++table) { |
| 1581 | if (table->code == fmt[0]) |
| 1582 | return table; |
| 1583 | } |
| 1584 | return NULL; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1585 | } |
| 1586 | |
| 1587 | typedef struct { char c; char x; } s_char; |
| 1588 | typedef struct { char c; short x; } s_short; |
| 1589 | typedef struct { char c; int x; } s_int; |
| 1590 | typedef struct { char c; long x; } s_long; |
| 1591 | typedef struct { char c; float x; } s_float; |
| 1592 | typedef struct { char c; double x; } s_double; |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1593 | typedef struct { char c; long double x; } s_long_double; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1594 | typedef struct { char c; char *x; } s_char_p; |
| 1595 | typedef struct { char c; void *x; } s_void_p; |
| 1596 | |
| 1597 | /* |
| 1598 | #define CHAR_ALIGN (sizeof(s_char) - sizeof(char)) |
| 1599 | #define SHORT_ALIGN (sizeof(s_short) - sizeof(short)) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1600 | #define LONG_ALIGN (sizeof(s_long) - sizeof(long)) |
| 1601 | */ |
Benjamin Peterson | fda3355 | 2014-03-16 10:07:26 +0100 | [diff] [blame] | 1602 | #define INT_ALIGN (sizeof(s_int) - sizeof(int)) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1603 | #define FLOAT_ALIGN (sizeof(s_float) - sizeof(float)) |
| 1604 | #define DOUBLE_ALIGN (sizeof(s_double) - sizeof(double)) |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1605 | #define LONGDOUBLE_ALIGN (sizeof(s_long_double) - sizeof(long double)) |
| 1606 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1607 | /* #define CHAR_P_ALIGN (sizeof(s_char_p) - sizeof(char*)) */ |
| 1608 | #define VOID_P_ALIGN (sizeof(s_void_p) - sizeof(void*)) |
| 1609 | |
| 1610 | /* |
| 1611 | #ifdef HAVE_USABLE_WCHAR_T |
| 1612 | typedef struct { char c; wchar_t x; } s_wchar; |
| 1613 | typedef struct { char c; wchar_t *x; } s_wchar_p; |
| 1614 | |
| 1615 | #define WCHAR_ALIGN (sizeof(s_wchar) - sizeof(wchar_t)) |
| 1616 | #define WCHAR_P_ALIGN (sizeof(s_wchar_p) - sizeof(wchar_t*)) |
| 1617 | #endif |
| 1618 | */ |
| 1619 | |
Benjamin Peterson | 47ff073 | 2016-09-08 09:15:54 -0700 | [diff] [blame] | 1620 | typedef struct { char c; long long x; } s_long_long; |
| 1621 | #define LONG_LONG_ALIGN (sizeof(s_long_long) - sizeof(long long)) |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1622 | |
| 1623 | /* from ffi.h: |
| 1624 | typedef struct _ffi_type |
| 1625 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1626 | size_t size; |
| 1627 | unsigned short alignment; |
| 1628 | unsigned short type; |
| 1629 | struct _ffi_type **elements; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1630 | } ffi_type; |
| 1631 | */ |
| 1632 | |
| 1633 | /* align and size are bogus for void, but they must not be zero */ |
| 1634 | ffi_type ffi_type_void = { 1, 1, FFI_TYPE_VOID }; |
| 1635 | |
| 1636 | ffi_type ffi_type_uint8 = { 1, 1, FFI_TYPE_UINT8 }; |
| 1637 | ffi_type ffi_type_sint8 = { 1, 1, FFI_TYPE_SINT8 }; |
| 1638 | |
| 1639 | ffi_type ffi_type_uint16 = { 2, 2, FFI_TYPE_UINT16 }; |
| 1640 | ffi_type ffi_type_sint16 = { 2, 2, FFI_TYPE_SINT16 }; |
| 1641 | |
Benjamin Peterson | fda3355 | 2014-03-16 10:07:26 +0100 | [diff] [blame] | 1642 | ffi_type ffi_type_uint32 = { 4, INT_ALIGN, FFI_TYPE_UINT32 }; |
| 1643 | ffi_type ffi_type_sint32 = { 4, INT_ALIGN, FFI_TYPE_SINT32 }; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1644 | |
| 1645 | ffi_type ffi_type_uint64 = { 8, LONG_LONG_ALIGN, FFI_TYPE_UINT64 }; |
| 1646 | ffi_type ffi_type_sint64 = { 8, LONG_LONG_ALIGN, FFI_TYPE_SINT64 }; |
| 1647 | |
| 1648 | ffi_type ffi_type_float = { sizeof(float), FLOAT_ALIGN, FFI_TYPE_FLOAT }; |
| 1649 | 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] | 1650 | |
| 1651 | #ifdef ffi_type_longdouble |
| 1652 | #undef ffi_type_longdouble |
| 1653 | #endif |
Georg Brandl | fcaf910 | 2008-07-16 02:17:56 +0000 | [diff] [blame] | 1654 | /* This is already defined on OSX */ |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 1655 | ffi_type ffi_type_longdouble = { sizeof(long double), LONGDOUBLE_ALIGN, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1656 | FFI_TYPE_LONGDOUBLE }; |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1657 | |
Thomas Heller | d4c9320 | 2006-03-08 19:35:11 +0000 | [diff] [blame] | 1658 | ffi_type ffi_type_pointer = { sizeof(void *), VOID_P_ALIGN, FFI_TYPE_POINTER }; |
| 1659 | |
| 1660 | /*---------------- EOF ----------------*/ |