libstdc++
|
00001 // -*- C++ -*- 00002 // 00003 // Copyright (C) 2009, 2010 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the terms 00007 // of the GNU General Public License as published by the Free Software 00008 // Foundation; either version 2, or (at your option) any later 00009 // version. 00010 00011 // This library is distributed in the hope that it will be useful, but 00012 // WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 // General Public License for more details. 00015 00016 // You should have received a copy of the GNU General Public License 00017 // along with this library; see the file COPYING. If not, write to 00018 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 00019 // MA 02111-1307, USA. 00020 00021 // As a special exception, you may use this file as part of a free 00022 // software library without restriction. Specifically, if other files 00023 // instantiate templates or use macros or inline functions from this 00024 // file, or you compile this file and link it with other files to 00025 // produce an executable, this file does not by itself cause the 00026 // resulting executable to be covered by the GNU General Public 00027 // License. This exception does not however invalidate any other 00028 // reasons why the executable file might be covered by the GNU General 00029 // Public License. 00030 00031 /** @file profile/impl/profiler_state.h 00032 * @brief Global profiler state. 00033 */ 00034 00035 // Written by Lixia Liu and Silvius Rus. 00036 00037 #ifndef _GLIBCXX_PROFILE_PROFILER_STATE_H 00038 #define _GLIBCXX_PROFILE_PROFILER_STATE_H 1 00039 00040 namespace __gnu_profile 00041 { 00042 enum __state_type { __ON, __OFF, __INVALID }; 00043 00044 _GLIBCXX_PROFILE_DEFINE_DATA(__state_type, __state, __INVALID); 00045 00046 inline bool 00047 __turn(__state_type __s) 00048 { return (_GLIBCXX_PROFILE_DATA(__state) 00049 == __sync_val_compare_and_swap(&_GLIBCXX_PROFILE_DATA(__state), 00050 __INVALID, __s)); } 00051 00052 inline bool 00053 __turn_on() 00054 { return __turn(__ON); } 00055 00056 inline bool 00057 __turn_off() 00058 { return __turn(__OFF); } 00059 00060 inline bool 00061 __is_on() 00062 { return _GLIBCXX_PROFILE_DATA(__state) == __ON; } 00063 00064 inline bool 00065 __is_off() 00066 { return _GLIBCXX_PROFILE_DATA(__state) == __OFF; } 00067 00068 inline bool 00069 __is_invalid() 00070 { return _GLIBCXX_PROFILE_DATA(__state) == __INVALID; } 00071 00072 } // end namespace __gnu_profile 00073 #endif /* _GLIBCXX_PROFILE_PROFILER_STATE_H */