profiler_state.h
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// -*- 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 */