diff options
Diffstat (limited to 'gcc-4.9/libstdc++-v3/include/profile/impl/profiler_state.h')
-rw-r--r-- | gcc-4.9/libstdc++-v3/include/profile/impl/profiler_state.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/gcc-4.9/libstdc++-v3/include/profile/impl/profiler_state.h b/gcc-4.9/libstdc++-v3/include/profile/impl/profiler_state.h new file mode 100644 index 0000000..6b7447b --- /dev/null +++ b/gcc-4.9/libstdc++-v3/include/profile/impl/profiler_state.h @@ -0,0 +1,69 @@ +// -*- 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 */ |