1 // -*- C++ -*- 2 // 3 // Copyright (C) 2009, 2010 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the terms 7 // of the GNU General Public License as published by the Free Software 8 // Foundation; either version 2, or (at your option) any later 9 // version. 10 11 // This library is distributed in the hope that it will be useful, but 12 // WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 // General Public License for more details. 15 16 // You should have received a copy of the GNU General Public License 17 // along with this library; see the file COPYING. If not, write to 18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19 // MA 02111-1307, USA. 20 21 // As a special exception, you may use this file as part of a free 22 // software library without restriction. Specifically, if other files 23 // instantiate templates or use macros or inline functions from this 24 // file, or you compile this file and link it with other files to 25 // produce an executable, this file does not by itself cause the 26 // resulting executable to be covered by the GNU General Public 27 // License. This exception does not however invalidate any other 28 // reasons why the executable file might be covered by the GNU General 29 // Public License. 30 31 /** @file profile/impl/profiler_state.h 32 * @brief Global profiler state. 33 */ 34 35 // Written by Lixia Liu and Silvius Rus. 36 37 #ifndef _GLIBCXX_PROFILE_PROFILER_STATE_H 38 #define _GLIBCXX_PROFILE_PROFILER_STATE_H 1 39 40 namespace __gnu_profile 41 { 42 enum __state_type { __ON, __OFF, __INVALID }; 43 44 _GLIBCXX_PROFILE_DEFINE_DATA(__state_type, __state, __INVALID); 45 46 inline bool 47 __turn(__state_type __s) 48 { return (_GLIBCXX_PROFILE_DATA(__state) 49 == __sync_val_compare_and_swap(&_GLIBCXX_PROFILE_DATA(__state), 50 __INVALID, __s)); } 51 52 inline bool 53 __turn_on() 54 { return __turn(__ON); } 55 56 inline bool 57 __turn_off() 58 { return __turn(__OFF); } 59 60 inline bool 61 __is_on() 62 { return _GLIBCXX_PROFILE_DATA(__state) == __ON; } 63 64 inline bool 65 __is_off() 66 { return _GLIBCXX_PROFILE_DATA(__state) == __OFF; } 67 68 inline bool 69 __is_invalid() 70 { return _GLIBCXX_PROFILE_DATA(__state) == __INVALID; } 71 72 } // end namespace __gnu_profile 73 #endif /* _GLIBCXX_PROFILE_PROFILER_STATE_H */ 74
