Mercurial > pub > dyncall > bindings
annotate python/pydc/pydcext.c @ 37:8c8f848131c6
- version bump
- better doc
- made calling convention mode reset by default, as only way to specify convention used is via signature string
| author | Tassilo Philipp |
|---|---|
| date | Mon, 13 Apr 2020 20:08:54 +0200 |
| parents | b84064293541 |
| children | 1d50532dce12 |
| rev | line source |
|---|---|
| 0 | 1 /****************************************************************************** |
| 2 ** | |
| 3 ** pydc - python dyncall package | |
| 4 ** | |
| 5 ** python extension package in C | |
| 28 | 6 ** Copyright 2007-2016 Daniel Adler |
| 7 ** 2018-2020 Tassilo Philipp | |
| 0 | 8 ** |
| 28 | 9 ** December 04, 2007: initial |
| 10 ** March 22, 2016: update to dyncall 0.9, includes breaking sig char changes | |
| 11 ** April 19, 2018: update to dyncall 1.0 | |
| 12 ** April 7, 2020: update to dyncall 1.1, Python 3 support, using the Capsule | |
| 13 ** API, as well as support for python unicode strings | |
| 0 | 14 ** |
| 15 *****************************************************************************/ | |
| 16 | |
| 17 #include <Python.h> | |
| 18 #include "dynload.h" | |
| 19 #include <limits.h> | |
| 20 | |
| 28 | 21 |
| 22 | |
| 23 #if ( (PY_VERSION_HEX < 0x02070000) \ | |
| 24 || ((PY_VERSION_HEX >= 0x03000000) \ | |
| 25 && (PY_VERSION_HEX < 0x03010000)) ) | |
| 30 | 26 # define DcPyCObject_FromVoidPtr(ptr, dtor) PyCObject_FromVoidPtr((ptr), (dtor)) // !new ref! |
| 28 | 27 # define DcPyCObject_AsVoidPtr(ppobj) PyCObject_AsVoidPtr((ppobj)) |
| 28 # define DcPyCObject_SetVoidPtr(ppobj, ptr) PyCObject_SetVoidPtr((ppobj), (ptr)) | |
| 29 #else | |
| 30 # define USE_CAPSULE_API | |
| 30 | 31 # define DcPyCObject_FromVoidPtr(ptr, dtor) PyCapsule_New((ptr), NULL, (dtor)) // !new ref! |
| 28 | 32 # define DcPyCObject_AsVoidPtr(ppobj) PyCapsule_GetPointer((ppobj), NULL) |
| 29 | 33 # define DcPyCObject_SetVoidPtr(ppobj, ptr) //@@@ unsure what to do, cannot/shouldn't call this with a null pointer as this wants to call the dtor, so not doing anything: PyCapsule_SetPointer((ppobj), (ptr)) // this might need to call the dtor to behave like PyCObject_SetVoidPtr? |
| 28 | 34 #endif |
| 35 | |
| 36 #if PY_MAJOR_VERSION >= 3 | |
| 29 | 37 # define EXPECT_LONG_TYPE_STR "an int" |
| 28 | 38 # define DcPyString_GET_SIZE PyBytes_GET_SIZE |
| 39 # define DcPyString_Check PyBytes_Check | |
| 40 # define DcPyString_AsString PyBytes_AsString | |
| 41 # define DcPyInt_Check PyLong_Check | |
| 42 # define DcPyInt_AsLong PyLong_AsLong | |
| 43 # define DcPyInt_AS_LONG PyLong_AS_LONG | |
| 44 #else | |
| 29 | 45 # define EXPECT_LONG_TYPE_STR "an int or a long" |
| 28 | 46 # define DcPyString_GET_SIZE PyString_GET_SIZE |
| 47 # define DcPyString_Check PyString_Check | |
| 48 # define DcPyString_AsString PyString_AsString | |
| 49 # define DcPyInt_Check PyInt_Check | |
| 50 # define DcPyInt_AsLong PyInt_AsLong | |
| 51 # define DcPyInt_AS_LONG PyInt_AS_LONG | |
| 52 #endif | |
| 53 | |
| 0 | 54 /* PyCObject destructor callback for libhandle */ |
| 55 | |
| 28 | 56 #if defined(USE_CAPSULE_API) |
| 57 void free_library(PyObject* capsule) | |
| 58 { | |
| 29 | 59 void* libhandle = PyCapsule_GetPointer(capsule, NULL); |
| 28 | 60 #else |
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61 void free_library(void* libhandle) |
| 0 | 62 { |
| 28 | 63 #endif |
| 29 | 64 if (libhandle != 0) |
| 65 dlFreeLibrary(libhandle); | |
| 0 | 66 } |
| 67 | |
| 28 | 68 |
| 0 | 69 /* load function */ |
| 70 | |
| 71 static PyObject* | |
| 72 pydc_load(PyObject* self, PyObject* args) | |
| 73 { | |
| 29 | 74 const char* libpath; |
| 75 void* libhandle; | |
| 0 | 76 |
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77 if (!PyArg_ParseTuple(args,"z", &libpath)) |
| 31 | 78 return PyErr_Format(PyExc_RuntimeError, "libpath argument (str) missing"); |
| 0 | 79 |
| 29 | 80 libhandle = dlLoadLibrary(libpath); |
| 0 | 81 |
| 29 | 82 if (!libhandle) |
| 83 return PyErr_Format(PyExc_RuntimeError, "dlLoadLibrary('%s') failed", libpath); | |
| 0 | 84 |
| 30 | 85 return DcPyCObject_FromVoidPtr(libhandle, &free_library); // !new ref! |
| 0 | 86 } |
| 87 | |
| 88 /* find function */ | |
| 89 | |
| 90 static PyObject* | |
| 91 pydc_find(PyObject* self, PyObject* args) | |
| 92 { | |
| 29 | 93 PyObject* pcobj; |
| 94 const char* symbol; | |
| 95 void* libhandle; | |
| 96 void* funcptr; | |
| 0 | 97 |
| 29 | 98 if (!PyArg_ParseTuple(args, "Os", &pcobj, &symbol)) |
| 99 return PyErr_Format(PyExc_RuntimeError, "argument mismatch"); | |
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100 |
| 29 | 101 libhandle = DcPyCObject_AsVoidPtr(pcobj); |
| 102 if (!libhandle) | |
| 103 return PyErr_Format(PyExc_RuntimeError, "libhandle is null"); | |
| 0 | 104 |
| 29 | 105 funcptr = dlFindSymbol(libhandle, symbol); |
| 106 if (!funcptr) | |
| 107 return PyErr_Format(PyExc_RuntimeError, "symbol '%s' not found", symbol); | |
| 0 | 108 |
| 30 | 109 return DcPyCObject_FromVoidPtr(funcptr, NULL); // !new ref! |
| 0 | 110 } |
| 111 | |
| 112 /* free function */ | |
| 113 | |
| 114 static PyObject* | |
| 115 pydc_free(PyObject* self, PyObject* args) | |
| 116 { | |
| 29 | 117 PyObject* pcobj; |
| 118 void* libhandle; | |
| 0 | 119 |
| 29 | 120 if (!PyArg_ParseTuple(args, "O", &pcobj)) |
| 121 return PyErr_Format(PyExc_RuntimeError, "argument mismatch"); | |
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122 |
| 29 | 123 libhandle = DcPyCObject_AsVoidPtr(pcobj); |
| 124 if (!libhandle) | |
| 125 return PyErr_Format(PyExc_RuntimeError, "libhandle is NULL"); | |
| 0 | 126 |
| 29 | 127 dlFreeLibrary(libhandle); |
| 128 DcPyCObject_SetVoidPtr(pcobj, NULL); | |
| 28 | 129 |
| 30 | 130 //don't think I need to release it, as the pyobj is not equivalent to the held handle |
| 131 //Py_XDECREF(pcobj); // release ref from pydc_load() | |
| 132 | |
| 29 | 133 Py_RETURN_NONE; |
| 0 | 134 } |
| 135 | |
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136 /* get_path function */ |
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137 |
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138 static PyObject* |
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139 pydc_get_path(PyObject* self, PyObject* args) |
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140 { |
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141 PyObject* pcobj; |
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142 PyObject* retobj; |
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143 void* libhandle; |
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144 char* path; |
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145 int path_bufSize; |
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146 |
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147 if (!PyArg_ParseTuple(args, "O", &pcobj)) |
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148 return PyErr_Format(PyExc_RuntimeError, "argument mismatch"); |
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149 |
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150 libhandle = (pcobj == Py_None)?NULL:DcPyCObject_AsVoidPtr(pcobj); |
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151 path_bufSize = dlGetLibraryPath(libhandle, NULL, 0); |
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152 if (!path_bufSize) |
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153 return PyErr_Format(PyExc_RuntimeError, "library path cannot be found"); |
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154 |
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155 path = malloc(path_bufSize); |
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156 if (path_bufSize != dlGetLibraryPath(libhandle, path, path_bufSize)) { |
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157 free(path); |
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158 return PyErr_Format(PyExc_RuntimeError, "library path cannot be queried"); |
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159 } |
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160 |
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161 retobj = Py_BuildValue("s", path); // !new ref! @@@ UTF-8 input... |
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162 free(path); |
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163 return retobj; |
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164 } |
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165 |
| 28 | 166 |
| 0 | 167 #include "dyncall.h" |
| 168 #include "dyncall_signature.h" | |
| 169 | |
| 30 | 170 DCCallVM* gpCall = NULL; |
| 0 | 171 |
| 29 | 172 |
| 0 | 173 /* call function */ |
| 174 | |
| 175 static PyObject* | |
| 176 pydc_call(PyObject* self, PyObject* in_args) | |
| 177 { | |
| 29 | 178 PyObject *pcobj_funcptr, *args; |
| 179 const char *signature, *ptr; | |
| 180 char ch; | |
| 181 int pos, ts; | |
| 182 void* pfunc; | |
| 183 | |
| 184 if (!PyArg_ParseTuple(in_args,"OsO", &pcobj_funcptr, &signature, &args)) | |
| 185 return PyErr_Format(PyExc_RuntimeError, "argument mismatch"); | |
| 186 | |
| 187 pfunc = DcPyCObject_AsVoidPtr(pcobj_funcptr); | |
| 188 if (!pfunc) | |
| 189 return PyErr_Format( PyExc_RuntimeError, "function pointer is NULL" ); | |
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190 |
| 29 | 191 ptr = signature; |
| 192 pos = 0; | |
| 193 ts = PyTuple_Size(args); | |
| 194 | |
| 195 dcReset(gpCall); | |
| 37 | 196 dcMode(gpCall, DC_CALL_C_DEFAULT); |
| 28 | 197 |
| 29 | 198 for (ch = *ptr; ch != '\0' && ch != ')'; ch = *++ptr) |
| 199 { | |
| 200 PyObject* po; | |
| 201 | |
| 202 if (pos > ts) | |
| 203 return PyErr_Format( PyExc_RuntimeError, "expecting more arguments" ); | |
| 28 | 204 |
| 29 | 205 po = PyTuple_GetItem(args, pos); |
| 206 | |
| 207 ++pos; // incr here, code below uses it as 1-based argument index for error strings | |
| 0 | 208 |
| 29 | 209 switch(ch) |
| 210 { | |
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211 case DC_SIGCHAR_CC_PREFIX: |
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212 { |
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213 if(*(ptr+1) != '\0') |
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214 { |
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215 // @@@ this is easily going out of sync with dyncall, abstract this sigchar->mode lookup somewhere inside dyncall |
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216 switch(*++ptr) { |
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217 case DC_SIGCHAR_CC_DEFAULT: dcMode(gpCall, DC_CALL_C_DEFAULT ); break; |
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218 case DC_SIGCHAR_CC_ELLIPSIS: dcMode(gpCall, DC_CALL_C_ELLIPSIS ); break; |
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219 case DC_SIGCHAR_CC_ELLIPSIS_VARARGS: dcMode(gpCall, DC_CALL_C_ELLIPSIS_VARARGS ); break; |
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220 case DC_SIGCHAR_CC_CDECL: dcMode(gpCall, DC_CALL_C_X86_CDECL ); break; |
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221 case DC_SIGCHAR_CC_STDCALL: dcMode(gpCall, DC_CALL_C_X86_WIN32_STD ); break; |
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222 case DC_SIGCHAR_CC_FASTCALL_MS: dcMode(gpCall, DC_CALL_C_X86_WIN32_FAST_MS ); break; |
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223 case DC_SIGCHAR_CC_FASTCALL_GNU: dcMode(gpCall, DC_CALL_C_X86_WIN32_FAST_GNU); break; |
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224 case DC_SIGCHAR_CC_THISCALL_MS: dcMode(gpCall, DC_CALL_C_X86_WIN32_THIS_MS ); break; |
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225 case DC_SIGCHAR_CC_THISCALL_GNU: dcMode(gpCall, DC_CALL_C_X86_WIN32_THIS_GNU); break; |
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226 case DC_SIGCHAR_CC_ARM_ARM: dcMode(gpCall, DC_CALL_C_ARM_ARM ); break; |
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227 case DC_SIGCHAR_CC_ARM_THUMB: dcMode(gpCall, DC_CALL_C_ARM_THUMB ); break; |
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228 case DC_SIGCHAR_CC_SYSCALL: dcMode(gpCall, DC_CALL_SYS_DEFAULT ); break; |
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229 } |
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230 } |
| 36 | 231 --pos; // didn't count as arg |
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232 } |
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233 break; |
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234 |
| 29 | 235 case DC_SIGCHAR_BOOL: |
| 236 if ( !PyBool_Check(po) ) | |
| 237 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting a bool", pos ); | |
| 238 dcArgBool(gpCall, (Py_True == po) ? DC_TRUE : DC_FALSE); | |
| 239 break; | |
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240 |
| 29 | 241 case DC_SIGCHAR_CHAR: |
| 242 case DC_SIGCHAR_UCHAR: | |
| 243 { | |
| 244 DCchar c; | |
| 245 if ( PyUnicode_Check(po) ) | |
| 246 { | |
| 247 #if (PY_VERSION_HEX < 0x03030000) | |
| 248 Py_UNICODE cu; | |
| 249 if (PyUnicode_GET_SIZE(po) != 1) | |
| 250 #else | |
| 251 Py_UCS4 cu; | |
| 252 if (PyUnicode_GET_LENGTH(po) != 1) | |
| 253 #endif | |
| 31 | 254 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting a str with length of 1 (a char string)", pos ); |
| 0 | 255 |
| 29 | 256 #if (PY_VERSION_HEX < 0x03030000) |
| 257 cu = PyUnicode_AS_UNICODE(po)[0]; | |
| 258 #else | |
| 259 cu = PyUnicode_ReadChar(po, 0); | |
| 260 #endif | |
| 261 // check against UCHAR_MAX in every case b/c Py_UCS4 is unsigned | |
| 262 if ( (cu > UCHAR_MAX)) | |
| 31 | 263 return PyErr_Format( PyExc_RuntimeError, "arg %d out of range - expecting a char code", pos ); |
| 29 | 264 c = (DCchar) cu; |
| 265 } | |
| 266 else if ( DcPyString_Check(po) ) | |
| 267 { | |
| 268 size_t l; | |
| 269 char* s; | |
| 270 l = DcPyString_GET_SIZE(po); | |
| 271 if (l != 1) | |
| 31 | 272 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting a str with length of 1 (a char string)", pos ); |
| 29 | 273 s = DcPyString_AsString(po); |
| 274 c = (DCchar) s[0]; | |
| 275 } | |
| 276 else if ( DcPyInt_Check(po) ) | |
| 277 { | |
| 278 long l = DcPyInt_AsLong(po); | |
| 279 if (ch == DC_SIGCHAR_CHAR && (l < CHAR_MIN || l > CHAR_MAX)) | |
| 280 return PyErr_Format( PyExc_RuntimeError, "arg %d out of range - expecting %d <= arg <= %d, got %ld", pos, CHAR_MIN, CHAR_MAX, l ); | |
| 281 if (ch == DC_SIGCHAR_UCHAR && (l < 0 || l > UCHAR_MAX)) | |
| 282 return PyErr_Format( PyExc_RuntimeError, "arg %d out of range - expecting 0 <= arg <= %d, got %ld", pos, UCHAR_MAX, l ); | |
| 283 c = (DCchar) l; | |
| 284 } | |
| 285 else | |
| 286 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting a char", pos ); | |
| 287 dcArgChar(gpCall, c); | |
| 288 } | |
| 289 break; | |
| 290 | |
| 291 case DC_SIGCHAR_SHORT: | |
| 292 { | |
| 293 long l; | |
| 294 if ( !DcPyInt_Check(po) ) | |
| 295 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting an int", pos ); | |
| 296 l = DcPyInt_AS_LONG(po); | |
| 297 if (l < SHRT_MIN || l > SHRT_MAX) | |
| 298 return PyErr_Format( PyExc_RuntimeError, "arg %d out of range - expecting %d <= arg <= %d, got %ld", pos, SHRT_MIN, SHRT_MAX, l ); | |
| 299 dcArgShort(gpCall, (DCshort)l); | |
| 300 } | |
| 301 break; | |
| 302 | |
| 303 case DC_SIGCHAR_USHORT: | |
| 304 { | |
| 305 long l; | |
| 306 if ( !DcPyInt_Check(po) ) | |
| 307 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting an int", pos ); | |
| 308 l = DcPyInt_AS_LONG(po); | |
| 309 if (l < 0 || l > USHRT_MAX) | |
| 310 return PyErr_Format( PyExc_RuntimeError, "arg %d out of range - expecting 0 <= arg <= %d, got %ld", pos, USHRT_MAX, l ); | |
| 311 dcArgShort(gpCall, (DCshort)l); | |
| 312 } | |
| 313 break; | |
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314 |
| 29 | 315 case DC_SIGCHAR_INT: |
| 316 case DC_SIGCHAR_UINT: | |
| 317 if ( !DcPyInt_Check(po) ) | |
| 318 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting an int", pos ); | |
| 319 dcArgInt(gpCall, (DCint) DcPyInt_AS_LONG(po)); | |
| 320 break; | |
| 321 | |
| 322 case DC_SIGCHAR_LONG: | |
| 323 case DC_SIGCHAR_ULONG: | |
| 324 if ( !DcPyInt_Check(po) ) | |
| 325 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting an int", pos ); | |
| 326 dcArgLong(gpCall, (DClong) PyLong_AsLong(po)); | |
| 327 break; | |
| 328 | |
| 329 case DC_SIGCHAR_LONGLONG: | |
| 330 case DC_SIGCHAR_ULONGLONG: | |
| 331 #if PY_MAJOR_VERSION < 3 | |
| 332 if ( PyInt_Check(po) ) | |
| 333 dcArgLongLong(gpCall, (DClonglong) PyInt_AS_LONG(po)); | |
| 334 else | |
| 335 #endif | |
| 336 if ( !PyLong_Check(po) ) | |
| 337 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting " EXPECT_LONG_TYPE_STR, pos ); | |
| 338 dcArgLongLong(gpCall, (DClonglong)PyLong_AsLongLong(po)); | |
| 339 break; | |
| 340 | |
| 341 case DC_SIGCHAR_FLOAT: | |
| 342 if (!PyFloat_Check(po)) | |
| 343 return PyErr_Format( PyExc_RuntimeError, "arg %d - expeecting a float", pos ); | |
| 344 dcArgFloat(gpCall, (float)PyFloat_AsDouble(po)); | |
| 345 break; | |
| 346 | |
| 347 case DC_SIGCHAR_DOUBLE: | |
| 348 if (!PyFloat_Check(po)) | |
| 349 return PyErr_Format( PyExc_RuntimeError, "arg %d - expeecting a float", pos ); | |
| 350 dcArgDouble(gpCall, PyFloat_AsDouble(po)); | |
| 351 break; | |
| 0 | 352 |
| 34 | 353 case DC_SIGCHAR_POINTER: // this will only accept integers or mutable array types (meaning only bytearray) |
| 29 | 354 { |
| 355 DCpointer p; | |
| 34 | 356 if ( PyByteArray_Check(po) ) |
| 357 p = (DCpointer) PyByteArray_AsString(po); // adds an extra '\0', but that's ok | |
| 29 | 358 #if PY_MAJOR_VERSION < 3 |
| 359 else if ( PyInt_Check(po) ) | |
| 360 p = (DCpointer) PyInt_AS_LONG(po); | |
| 361 #endif | |
| 362 else if ( PyLong_Check(po) ) | |
| 363 p = (DCpointer) PyLong_AsVoidPtr(po); | |
| 364 else | |
| 34 | 365 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting a promoting pointer-type (int, bytearray)", pos ); |
| 29 | 366 dcArgPointer(gpCall, p); |
| 367 } | |
| 368 break; | |
| 0 | 369 |
| 34 | 370 case DC_SIGCHAR_STRING: // strings are considered to be immutable objects |
| 29 | 371 { |
| 30 | 372 PyObject* bo = NULL; |
| 29 | 373 const char* p; |
| 34 | 374 char* p_; |
| 375 size_t s; | |
| 29 | 376 if ( PyUnicode_Check(po) ) { |
| 30 | 377 if((bo = PyUnicode_AsEncodedString(po, "utf-8", "strict"))) // !new ref! |
| 29 | 378 p = PyBytes_AS_STRING(bo); // Borrowed pointer |
| 34 | 379 } else if ( DcPyString_Check(po) ) |
| 380 p = DcPyString_AsString(po); //@@@ must not be modified in any way | |
| 381 else if ( PyByteArray_Check(po) ) | |
| 382 p = (DCpointer) PyByteArray_AsString(po); // adds an extra '\0', but that's ok //@@@ not sure if allowed to modify | |
| 383 else | |
| 31 | 384 return PyErr_Format( PyExc_RuntimeError, "arg %d - expecting a str", pos ); |
| 34 | 385 |
| 386 // pointer points in any case to a buffer that shouldn't be modified, so pass a copy of the string to dyncall | |
| 387 s = strlen(p)+1; | |
| 388 p_ = malloc(s); | |
| 389 strncpy(p_, p, s); | |
| 30 | 390 Py_XDECREF(bo); |
| 34 | 391 dcArgPointer(gpCall, (DCpointer)p_); |
| 392 free(p_); | |
| 29 | 393 } |
| 394 break; | |
| 395 | |
| 396 default: | |
| 397 return PyErr_Format( PyExc_RuntimeError, "unknown signature character '%c'", ch); | |
| 398 } | |
| 399 } | |
| 400 | |
| 401 if (pos != ts) | |
| 402 return PyErr_Format( PyExc_RuntimeError, "too many arguments"); | |
| 403 | |
| 404 if (ch == '\0') | |
| 405 return PyErr_Format( PyExc_RuntimeError, "return value missing in signature"); | |
| 406 | |
| 407 | |
| 408 ch = *++ptr; | |
| 409 switch(ch) | |
| 410 { | |
| 30 | 411 // every line creates a new reference passed back to python |
| 412 case DC_SIGCHAR_VOID: dcCallVoid (gpCall, pfunc); Py_RETURN_NONE; // !new ref! | |
| 413 case DC_SIGCHAR_BOOL: if(dcCallBool (gpCall, pfunc)){Py_RETURN_TRUE;}else{Py_RETURN_FALSE;} // !new ref! | |
| 414 case DC_SIGCHAR_CHAR: return Py_BuildValue("b", dcCallChar (gpCall, pfunc)); // !new ref! | |
| 415 case DC_SIGCHAR_UCHAR: return Py_BuildValue("B", dcCallChar (gpCall, pfunc)); // !new ref! | |
| 416 case DC_SIGCHAR_SHORT: return Py_BuildValue("h", dcCallShort (gpCall, pfunc)); // !new ref! | |
| 417 case DC_SIGCHAR_USHORT: return Py_BuildValue("H", dcCallShort (gpCall, pfunc)); // !new ref! | |
| 418 case DC_SIGCHAR_INT: return Py_BuildValue("i", dcCallInt (gpCall, pfunc)); // !new ref! | |
| 419 case DC_SIGCHAR_UINT: return Py_BuildValue("I", dcCallInt (gpCall, pfunc)); // !new ref! | |
| 420 case DC_SIGCHAR_LONG: return Py_BuildValue("l", dcCallLong (gpCall, pfunc)); // !new ref! | |
| 421 case DC_SIGCHAR_ULONG: return Py_BuildValue("k", dcCallLong (gpCall, pfunc)); // !new ref! | |
| 422 case DC_SIGCHAR_LONGLONG: return Py_BuildValue("L", dcCallLongLong(gpCall, pfunc)); // !new ref! | |
| 423 case DC_SIGCHAR_ULONGLONG: return Py_BuildValue("K", dcCallLongLong(gpCall, pfunc)); // !new ref! | |
| 424 case DC_SIGCHAR_FLOAT: return Py_BuildValue("f", dcCallFloat (gpCall, pfunc)); // !new ref! | |
| 425 case DC_SIGCHAR_DOUBLE: return Py_BuildValue("d", dcCallDouble (gpCall, pfunc)); // !new ref! | |
| 426 case DC_SIGCHAR_STRING: return Py_BuildValue("s", dcCallPointer (gpCall, pfunc)); // !new ref! | |
| 427 case DC_SIGCHAR_POINTER: return Py_BuildValue("n", dcCallPointer (gpCall, pfunc)); // !new ref! | |
| 29 | 428 default: return PyErr_Format(PyExc_RuntimeError, "invalid return type signature"); |
| 429 } | |
| 0 | 430 } |
| 431 | |
| 432 | |
| 28 | 433 |
| 30 | 434 // module deinit |
| 435 static void deinit_pydc(void* x) | |
| 436 { | |
| 437 if(gpCall) { | |
| 438 dcFree(gpCall); | |
| 439 gpCall = NULL; | |
| 440 } | |
| 441 } | |
| 28 | 442 |
| 443 | |
| 444 #define PYDC_TO_STR_(x) #x | |
| 445 #define PYDC_TO_STR(x) PYDC_TO_STR_(x) | |
| 446 #define PYDC_CONCAT_(x, y) x ## y | |
| 447 #define PYDC_CONCAT(x, y) PYDC_CONCAT_(x, y) | |
| 448 | |
| 449 #define PYDC_MOD_NAME pydcext | |
| 450 #define PYDC_MOD_NAME_STR PYDC_TO_STR(PYDC_MOD_NAME) | |
| 451 #define PYDC_MOD_DESC_STR "dyncall bindings for python" | |
| 452 | |
| 453 #if PY_MAJOR_VERSION >= 3 | |
| 454 # define PY_MOD_INIT_FUNC_NAME PYDC_CONCAT(PyInit_, PYDC_MOD_NAME) | |
| 455 #else | |
| 456 # define PY_MOD_INIT_FUNC_NAME PYDC_CONCAT(init, PYDC_MOD_NAME) | |
| 457 #endif | |
| 458 | |
| 0 | 459 |
| 460 PyMODINIT_FUNC | |
| 28 | 461 PY_MOD_INIT_FUNC_NAME(void) |
| 0 | 462 { |
| 29 | 463 static PyMethodDef pydcMethods[] = { |
|
33
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diff
changeset
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464 {"load", pydc_load, METH_VARARGS, "load library" }, |
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diff
changeset
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465 {"find", pydc_find, METH_VARARGS, "find symbols" }, |
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- pydc: added support to get libhandle's path
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diff
changeset
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466 {"free", pydc_free, METH_VARARGS, "free library" }, |
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ba47a3d709d7
- pydc: added support to get libhandle's path
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parents:
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diff
changeset
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467 {"get_path", pydc_get_path, METH_VARARGS, "get library path"}, |
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diff
changeset
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468 {"call", pydc_call, METH_VARARGS, "call function" }, |
| 29 | 469 {NULL,NULL,0,NULL} |
| 470 }; | |
| 28 | 471 |
| 29 | 472 PyObject* m; |
| 28 | 473 #if PY_MAJOR_VERSION >= 3 |
| 30 | 474 static struct PyModuleDef moddef = { PyModuleDef_HEAD_INIT, PYDC_MOD_NAME_STR, PYDC_MOD_DESC_STR, -1, pydcMethods, NULL, NULL, NULL, deinit_pydc }; |
| 29 | 475 m = PyModule_Create(&moddef); |
| 28 | 476 #else |
| 29 | 477 m = Py_InitModule3(PYDC_MOD_NAME_STR, pydcMethods, PYDC_MOD_DESC_STR); |
| 30 | 478 // NOTE: there is no way to pass a pointer to deinit_pydc - see PEP 3121 for details |
| 28 | 479 #endif |
| 480 | |
| 29 | 481 if(m) |
| 482 gpCall = dcNewCallVM(4096); //@@@ one shared callvm for the entire module, this is not reentrant | |
| 28 | 483 |
| 484 #if PY_MAJOR_VERSION >= 3 | |
| 29 | 485 return m; |
| 28 | 486 #endif |
| 0 | 487 } |
| 488 |