1// -*- C++ -*- 2// 3// Copyright (C) 2009 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 40namespace __gnu_profile 41{ 42 43enum __state_type { __ON, __OFF, __INVALID }; 44 45_GLIBCXX_PROFILE_DEFINE_DATA(__state_type, __state, __INVALID); 46 47inline bool __turn(__state_type __s) 48{ 49 return (_GLIBCXX_PROFILE_DATA(__state) 50 == __sync_val_compare_and_swap(&_GLIBCXX_PROFILE_DATA(__state), 51 __INVALID, __s)); 52} 53 54inline bool __turn_on() 55{ return __turn(__ON); } 56 57inline bool __turn_off() 58{ return __turn(__OFF); } 59 60inline bool __is_on() 61{ return _GLIBCXX_PROFILE_DATA(__state) == __ON; } 62 63inline bool __is_off() 64{ return _GLIBCXX_PROFILE_DATA(__state) == __OFF; } 65 66inline bool __is_invalid() 67{ return _GLIBCXX_PROFILE_DATA(__state) == __INVALID; } 68 69} // end namespace __gnu_profile 70#endif /* _GLIBCXX_PROFILE_PROFILER_STATE_H */ 71