1/*
2 * Context.c.  Python interfaces for perf script.
3 *
4 * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com>
5 *
6 *  This program is free software; you can redistribute it and/or modify
7 *  it under the terms of the GNU General Public License as published by
8 *  the Free Software Foundation; either version 2 of the License, or
9 *  (at your option) any later version.
10 *
11 *  This program is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *  GNU General Public License for more details.
15 *
16 *  You should have received a copy of the GNU General Public License
17 *  along with this program; if not, write to the Free Software
18 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19 *
20 */
21
22#include <Python.h>
23#include "../../../perf.h"
24#include "../../../util/trace-event.h"
25
26PyMODINIT_FUNC initperf_trace_context(void);
27
28static PyObject *perf_trace_context_common_pc(PyObject *self, PyObject *args)
29{
30	static struct scripting_context *scripting_context;
31	PyObject *context;
32	int retval;
33
34	if (!PyArg_ParseTuple(args, "O", &context))
35		return NULL;
36
37	scripting_context = PyCObject_AsVoidPtr(context);
38	retval = common_pc(scripting_context);
39
40	return Py_BuildValue("i", retval);
41}
42
43static PyObject *perf_trace_context_common_flags(PyObject *self,
44						 PyObject *args)
45{
46	static struct scripting_context *scripting_context;
47	PyObject *context;
48	int retval;
49
50	if (!PyArg_ParseTuple(args, "O", &context))
51		return NULL;
52
53	scripting_context = PyCObject_AsVoidPtr(context);
54	retval = common_flags(scripting_context);
55
56	return Py_BuildValue("i", retval);
57}
58
59static PyObject *perf_trace_context_common_lock_depth(PyObject *self,
60						      PyObject *args)
61{
62	static struct scripting_context *scripting_context;
63	PyObject *context;
64	int retval;
65
66	if (!PyArg_ParseTuple(args, "O", &context))
67		return NULL;
68
69	scripting_context = PyCObject_AsVoidPtr(context);
70	retval = common_lock_depth(scripting_context);
71
72	return Py_BuildValue("i", retval);
73}
74
75static PyMethodDef ContextMethods[] = {
76	{ "common_pc", perf_trace_context_common_pc, METH_VARARGS,
77	  "Get the common preempt count event field value."},
78	{ "common_flags", perf_trace_context_common_flags, METH_VARARGS,
79	  "Get the common flags event field value."},
80	{ "common_lock_depth", perf_trace_context_common_lock_depth,
81	  METH_VARARGS,	"Get the common lock depth event field value."},
82	{ NULL, NULL, 0, NULL}
83};
84
85PyMODINIT_FUNC initperf_trace_context(void)
86{
87	(void) Py_InitModule("perf_trace_context", ContextMethods);
88}
89