int do_import(FARPROC init_func, char *modname)
{
int res = -1;
PyObject* (*p)(void);
PyObject *m = NULL;
struct PyModuleDef *def;
char *oldcontext;
PyObject *name = PyUnicode_FromString(modname);
if (name == NULL)
return -1;
m = _PyImport_FindExtensionObject(name, name);
if (m != NULL) {
Py_DECREF(name);
return 0;
}
if (init_func == NULL) {
PyObject *msg = PyUnicode_FromFormat("dynamic module does not define "
"init function (PyInit_%s)",
modname);
if (msg == NULL)
return -1;
PyErr_SetImportError(msg, name, NULL);
Py_DECREF(msg);
Py_DECREF(name);
return -1;
}
oldcontext = _Py_PackageContext;
_Py_PackageContext = modname;
p = (PyObject*(*)(void))init_func;
m = (*p)();
_Py_PackageContext = oldcontext;
if (PyErr_Occurred()) {
Py_DECREF(name);
return -1;
}
/* Remember pointer to module init function. */
def = PyModule_GetDef(m);
if (def == NULL) {
PyErr_Format(PyExc_SystemError,
"initialization of %s did not return an extension "
"module", modname);
Py_DECREF(name);
return -1;
}
def->m_base.m_init = p;
res = _PyImport_FixupExtensionObject(m, name, name);
Py_DECREF(name);
return res;
}
PyObject *
_PyImport_LoadDynamicModule(PyObject *name, PyObject *path, FILE *fp)
{
PyObject *m;
PyObject *pathbytes;
char *namestr, *lastdot, *shortname, *packagecontext, *oldcontext;
dl_funcptr p0;
PyObject* (*p)(void);
struct PyModuleDef *def;
namestr = _PyUnicode_AsString(name);
if (namestr == NULL)
return NULL;
m = _PyImport_FindExtensionObject(name, path);
if (m != NULL) {
Py_INCREF(m);
return m;
}
lastdot = strrchr(namestr, '.');
if (lastdot == NULL) {
packagecontext = NULL;
shortname = namestr;
}
else {
packagecontext = namestr;
shortname = lastdot+1;
}
pathbytes = PyUnicode_EncodeFSDefault(path);
if (pathbytes == NULL)
return NULL;
p0 = _PyImport_GetDynLoadFunc(shortname,
PyBytes_AS_STRING(pathbytes), fp);
Py_DECREF(pathbytes);
p = (PyObject*(*)(void))p0;
if (PyErr_Occurred())
return NULL;
if (p == NULL) {
PyErr_Format(PyExc_ImportError,
"dynamic module does not define init function"
" (PyInit_%s)",
shortname);
return NULL;
}
oldcontext = _Py_PackageContext;
_Py_PackageContext = packagecontext;
m = (*p)();
_Py_PackageContext = oldcontext;
if (m == NULL)
return NULL;
if (PyErr_Occurred()) {
Py_DECREF(m);
PyErr_Format(PyExc_SystemError,
"initialization of %s raised unreported exception",
shortname);
return NULL;
}
/* Remember pointer to module init function. */
def = PyModule_GetDef(m);
def->m_base.m_init = p;
/* Remember the filename as the __file__ attribute */
if (PyModule_AddObject(m, "__file__", path) < 0)
PyErr_Clear(); /* Not important enough to report */
else
Py_INCREF(path);
if (_PyImport_FixupExtensionObject(m, name, path) < 0)
return NULL;
if (Py_VerboseFlag)
PySys_FormatStderr(
"import %U # dynamically loaded from %R\n",
name, path);
return m;
}
