AppPkg/Applications/Python/Python-2.7.10: Initial Checkin part 1/5.

The Include, Parser, and Python directories from the cPython 2.7.10 distribution.
These files are unchanged and set the baseline for subsequent commits.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <edk2-lists@mc2research.org>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18737 6f19259b-4bc3-4df7-8a09-765794883524

AppPkg/Applications/Python/Python-2.7.10/Python/importdl.c

@@ -0,0 +1,78 @@
+
+/* Support for dynamic loading of extension modules */
+
+#include "Python.h"
+
+/* ./configure sets HAVE_DYNAMIC_LOADING if dynamic loading of modules is
+   supported on this platform. configure will then compile and link in one
+   of the dynload_*.c files, as appropriate. We will call a function in
+   those modules to get a function pointer to the module's init function.
+*/
+#ifdef HAVE_DYNAMIC_LOADING
+
+#include "importdl.h"
+
+extern dl_funcptr _PyImport_GetDynLoadFunc(const char *name,
+                                           const char *shortname,
+                                           const char *pathname, FILE *fp);
+
+
+
+PyObject *
+_PyImport_LoadDynamicModule(char *name, char *pathname, FILE *fp)
+{
+    PyObject *m;
+    char *lastdot, *shortname, *packagecontext, *oldcontext;
+    dl_funcptr p;
+
+    if ((m = _PyImport_FindExtension(name, pathname)) != NULL) {
+        Py_INCREF(m);
+        return m;
+    }
+    lastdot = strrchr(name, '.');
+    if (lastdot == NULL) {
+        packagecontext = NULL;
+        shortname = name;
+    }
+    else {
+        packagecontext = name;
+        shortname = lastdot+1;
+    }
+
+    p = _PyImport_GetDynLoadFunc(name, shortname, pathname, fp);
+    if (PyErr_Occurred())
+        return NULL;
+    if (p == NULL) {
+        PyErr_Format(PyExc_ImportError,
+           "dynamic module does not define init function (init%.200s)",
+                     shortname);
+        return NULL;
+    }
+    oldcontext = _Py_PackageContext;
+    _Py_PackageContext = packagecontext;
+    (*p)();
+    _Py_PackageContext = oldcontext;
+    if (PyErr_Occurred())
+        return NULL;
+
+    m = PyDict_GetItemString(PyImport_GetModuleDict(), name);
+    if (m == NULL) {
+        PyErr_SetString(PyExc_SystemError,
+                        "dynamic module not initialized properly");
+        return NULL;
+    }
+    /* Remember the filename as the __file__ attribute */
+    if (PyModule_AddStringConstant(m, "__file__", pathname) < 0)
+        PyErr_Clear(); /* Not important enough to report */
+
+    if (_PyImport_FixupExtension(name, pathname) == NULL)
+        return NULL;
+    if (Py_VerboseFlag)
+        PySys_WriteStderr(
+            "import %s # dynamically loaded from %s\n",
+            name, pathname);
+    Py_INCREF(m);
+    return m;
+}
+
+#endif /* HAVE_DYNAMIC_LOADING */