1/* 2 * Context.c. Python interfaces for perf trace. 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