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comparison python/pydc/pydcext.c @ 33:ba47a3d709d7

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- pydc: added support to get libhandle's path
author Tassilo Philipp
date Sat, 11 Apr 2020 20:00:25 +0200
parents 2089026debae
children 2682a627168c
comparison
equal deleted inserted replaced
32:2089026debae 33:ba47a3d709d7
129 129
130 //don't think I need to release it, as the pyobj is not equivalent to the held handle 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() 131 //Py_XDECREF(pcobj); // release ref from pydc_load()
132 132
133 Py_RETURN_NONE; 133 Py_RETURN_NONE;
134 }
135
136 /* get_path function */
137
138 static PyObject*
139 pydc_get_path(PyObject* self, PyObject* args)
140 {
141 PyObject* pcobj;
142 PyObject* retobj;
143 void* libhandle;
144 char* path;
145 int path_bufSize;
146
147 if (!PyArg_ParseTuple(args, "O", &pcobj))
148 return PyErr_Format(PyExc_RuntimeError, "argument mismatch");
149
150 libhandle = (pcobj == Py_None)?NULL:DcPyCObject_AsVoidPtr(pcobj);
151 path_bufSize = dlGetLibraryPath(libhandle, NULL, 0);
152 if (!path_bufSize)
153 return PyErr_Format(PyExc_RuntimeError, "library path cannot be found");
154
155 path = malloc(path_bufSize);
156 if (path_bufSize != dlGetLibraryPath(libhandle, path, path_bufSize)) {
157 free(path);
158 return PyErr_Format(PyExc_RuntimeError, "library path cannot be queried");
159 }
160
161 retobj = Py_BuildValue("s", path); // !new ref! @@@ UTF-8 input...
162 free(path);
163 return retobj;
134 } 164 }
135 165
136 166
137 #include "dyncall.h" 167 #include "dyncall.h"
138 #include "dyncall_signature.h" 168 #include "dyncall_signature.h"
399 429
400 PyMODINIT_FUNC 430 PyMODINIT_FUNC
401 PY_MOD_INIT_FUNC_NAME(void) 431 PY_MOD_INIT_FUNC_NAME(void)
402 { 432 {
403 static PyMethodDef pydcMethods[] = { 433 static PyMethodDef pydcMethods[] = {
404 {"load", pydc_load, METH_VARARGS, "load library"}, 434 {"load", pydc_load, METH_VARARGS, "load library" },
405 {"find", pydc_find, METH_VARARGS, "find symbols"}, 435 {"find", pydc_find, METH_VARARGS, "find symbols" },
406 {"free", pydc_free, METH_VARARGS, "free library"}, 436 {"free", pydc_free, METH_VARARGS, "free library" },
407 {"call", pydc_call, METH_VARARGS, "call function"}, 437 {"get_path", pydc_get_path, METH_VARARGS, "get library path"},
438 {"call", pydc_call, METH_VARARGS, "call function" },
408 {NULL,NULL,0,NULL} 439 {NULL,NULL,0,NULL}
409 }; 440 };
410 441
411 PyObject* m; 442 PyObject* m;
412 #if PY_MAJOR_VERSION >= 3 443 #if PY_MAJOR_VERSION >= 3