| // -*- C++ -*- |
| // |
| // Copyright (C) 2009-2014 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| // |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| /** @file profile/impl/profiler_state.h |
| * @brief Global profiler state. |
| */ |
| |
| // Written by Lixia Liu and Silvius Rus. |
| |
| #ifndef _GLIBCXX_PROFILE_PROFILER_STATE_H |
| #define _GLIBCXX_PROFILE_PROFILER_STATE_H 1 |
| |
| namespace __gnu_profile |
| { |
| enum __state_type { __ON, __OFF, __INVALID }; |
| |
| _GLIBCXX_PROFILE_DEFINE_DATA(__state_type, __state, __INVALID); |
| |
| inline bool |
| __turn(__state_type __s) |
| { |
| __state_type inv(__INVALID); |
| return __atomic_compare_exchange_n(&_GLIBCXX_PROFILE_DATA(__state), |
| &inv, __s, false, __ATOMIC_ACQ_REL, |
| __ATOMIC_RELAXED); |
| } |
| |
| inline bool |
| __turn_on() |
| { return __turn(__ON); } |
| |
| inline bool |
| __turn_off() |
| { return __turn(__OFF); } |
| |
| inline bool |
| __is_on() |
| { return _GLIBCXX_PROFILE_DATA(__state) == __ON; } |
| |
| inline bool |
| __is_off() |
| { return _GLIBCXX_PROFILE_DATA(__state) == __OFF; } |
| |
| inline bool |
| __is_invalid() |
| { return _GLIBCXX_PROFILE_DATA(__state) == __INVALID; } |
| |
| } // end namespace __gnu_profile |
| #endif /* _GLIBCXX_PROFILE_PROFILER_STATE_H */ |
