1*38fd1498Szrj // -*- C++ -*- 2*38fd1498Szrj // 3*38fd1498Szrj // Copyright (C) 2009-2018 Free Software Foundation, Inc. 4*38fd1498Szrj // 5*38fd1498Szrj // This file is part of the GNU ISO C++ Library. This library is free 6*38fd1498Szrj // software; you can redistribute it and/or modify it under the 7*38fd1498Szrj // terms of the GNU General Public License as published by the 8*38fd1498Szrj // Free Software Foundation; either version 3, or (at your option) 9*38fd1498Szrj // any later version. 10*38fd1498Szrj // 11*38fd1498Szrj // This library is distributed in the hope that it will be useful, 12*38fd1498Szrj // but WITHOUT ANY WARRANTY; without even the implied warranty of 13*38fd1498Szrj // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*38fd1498Szrj // GNU General Public License for more details. 15*38fd1498Szrj 16*38fd1498Szrj // Under Section 7 of GPL version 3, you are granted additional 17*38fd1498Szrj // permissions described in the GCC Runtime Library Exception, version 18*38fd1498Szrj // 3.1, as published by the Free Software Foundation. 19*38fd1498Szrj 20*38fd1498Szrj // You should have received a copy of the GNU General Public License along 21*38fd1498Szrj // with this library; see the file COPYING3. If not see 22*38fd1498Szrj // <http://www.gnu.org/licenses/>. 23*38fd1498Szrj 24*38fd1498Szrj /** @file profile/impl/profiler_state.h 25*38fd1498Szrj * @brief Global profiler state. 26*38fd1498Szrj */ 27*38fd1498Szrj 28*38fd1498Szrj // Written by Lixia Liu and Silvius Rus. 29*38fd1498Szrj 30*38fd1498Szrj #ifndef _GLIBCXX_PROFILE_PROFILER_STATE_H 31*38fd1498Szrj #define _GLIBCXX_PROFILE_PROFILER_STATE_H 1 32*38fd1498Szrj 33*38fd1498Szrj namespace __gnu_profile 34*38fd1498Szrj { 35*38fd1498Szrj enum __state_type { __ON, __OFF, __INVALID }; 36*38fd1498Szrj 37*38fd1498Szrj _GLIBCXX_PROFILE_DEFINE_DATA(__state_type, __state, __INVALID); 38*38fd1498Szrj 39*38fd1498Szrj inline bool __turn(__state_type __s)40*38fd1498Szrj __turn(__state_type __s) 41*38fd1498Szrj { 42*38fd1498Szrj __state_type inv(__INVALID); 43*38fd1498Szrj return __atomic_compare_exchange_n(&_GLIBCXX_PROFILE_DATA(__state), 44*38fd1498Szrj &inv, __s, false, __ATOMIC_ACQ_REL, 45*38fd1498Szrj __ATOMIC_RELAXED); 46*38fd1498Szrj } 47*38fd1498Szrj 48*38fd1498Szrj inline bool __turn_on()49*38fd1498Szrj __turn_on() 50*38fd1498Szrj { return __turn(__ON); } 51*38fd1498Szrj 52*38fd1498Szrj inline bool __turn_off()53*38fd1498Szrj __turn_off() 54*38fd1498Szrj { return __turn(__OFF); } 55*38fd1498Szrj 56*38fd1498Szrj inline bool __is_on()57*38fd1498Szrj __is_on() 58*38fd1498Szrj { return _GLIBCXX_PROFILE_DATA(__state) == __ON; } 59*38fd1498Szrj 60*38fd1498Szrj inline bool __is_off()61*38fd1498Szrj __is_off() 62*38fd1498Szrj { return _GLIBCXX_PROFILE_DATA(__state) == __OFF; } 63*38fd1498Szrj 64*38fd1498Szrj inline bool __is_invalid()65*38fd1498Szrj __is_invalid() 66*38fd1498Szrj { return _GLIBCXX_PROFILE_DATA(__state) == __INVALID; } 67*38fd1498Szrj 68*38fd1498Szrj } // end namespace __gnu_profile 69*38fd1498Szrj #endif /* _GLIBCXX_PROFILE_PROFILER_STATE_H */ 70