1 files changed, 92 insertions, 0 deletions
diff --git a/src/python/mmv.c b/src/python/mmv.c
new file mode 100644
index 0000000..220e7e8
--- /dev/null
+++ b/src/python/mmv.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2013-2014 Red Hat.
+ *
+ * This file is part of the "pcp" module, the python interfaces for the
+ * Performance Co-Pilot toolkit.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+/**************************************************************************\
+**                                                                        **
+** This C extension module mainly serves the purpose of loading constants **
+** from PCP headers into the module dictionary.  The MMV functions and    **
+** data structures are wrapped in mmv.py using ctypes.                    **
+**                                                                        **
+\**************************************************************************/
+
+#include <Python.h>
+#include <pcp/pmapi.h>
+#include <pcp/mmv_stats.h>
+
+#if PY_MAJOR_VERSION >= 3
+#define MOD_ERROR_VAL NULL
+#define MOD_SUCCESS_VAL(val) val
+#define MOD_INIT(name) PyMODINIT_FUNC PyInit_##name(void)
+#define MOD_DEF(ob, name, doc, methods) \
+        static struct PyModuleDef moduledef = { \
+          PyModuleDef_HEAD_INIT, name, doc, -1, methods, }; \
+        ob = PyModule_Create(&moduledef);
+#else
+#define MOD_ERROR_VAL
+#define MOD_SUCCESS_VAL(val)
+#define MOD_INIT(name) void init##name(void)
+#define MOD_DEF(ob, name, doc, methods) \
+        ob = Py_InitModule3(name, methods, doc);
+#endif
+
+static void
+dict_add(PyObject *dict, char *symbol, long value)
+{
+#if PY_MAJOR_VERSION >= 3
+    PyObject *pyvalue = PyLong_FromLong(value);
+#else
+    PyObject *pyvalue = PyInt_FromLong(value);
+#endif
+    PyDict_SetItemString(dict, symbol, pyvalue);
+    Py_XDECREF(pyvalue);
+}
+
+static PyMethodDef methods[] = { { NULL } };
+
+/* called when the module is initialized. */
+MOD_INIT(cmmv)
+{
+    PyObject *module, *dict;
+
+    MOD_DEF(module, "cmmv", NULL, methods);
+    if (module == NULL)
+	return MOD_ERROR_VAL;
+
+    dict = PyModule_GetDict(module);
+
+    dict_add(dict, "MMV_NAMEMAX", MMV_NAMEMAX);
+    dict_add(dict, "MMV_STRINGMAX", MMV_STRINGMAX);
+
+    dict_add(dict, "MMV_TYPE_NOSUPPORT", MMV_TYPE_NOSUPPORT);
+    dict_add(dict, "MMV_TYPE_I32", MMV_TYPE_I32);
+    dict_add(dict, "MMV_TYPE_U32", MMV_TYPE_U32);
+    dict_add(dict, "MMV_TYPE_I64", MMV_TYPE_I64);
+    dict_add(dict, "MMV_TYPE_U64", MMV_TYPE_U64);
+    dict_add(dict, "MMV_TYPE_FLOAT", MMV_TYPE_FLOAT);
+    dict_add(dict, "MMV_TYPE_DOUBLE", MMV_TYPE_DOUBLE);
+    dict_add(dict, "MMV_TYPE_STRING", MMV_TYPE_STRING);
+    dict_add(dict, "MMV_TYPE_ELAPSED", MMV_TYPE_ELAPSED);
+
+    dict_add(dict, "MMV_SEM_COUNTER", MMV_SEM_COUNTER);
+    dict_add(dict, "MMV_SEM_INSTANT", MMV_SEM_INSTANT);
+    dict_add(dict, "MMV_SEM_DISCRETE", MMV_SEM_DISCRETE);
+
+    dict_add(dict, "MMV_FLAG_NOPREFIX", MMV_FLAG_NOPREFIX);
+    dict_add(dict, "MMV_FLAG_PROCESS", MMV_FLAG_PROCESS);
+
+    return MOD_SUCCESS_VAL(module);
+}