// -*- C++ -*-
//
-// Copyright (C) 2009 Free Software Foundation, Inc.
+// Copyright (C) 2009, 2010, 2012 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 2, 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.
+// 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.
-// You should have received a copy of the GNU General Public License
-// along with this library; see the file COPYING. If not, write to
-// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
-// MA 02111-1307, USA.
+// 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.
-// As a special exception, you may use this file as part of a free
-// software library without restriction. Specifically, if other files
-// instantiate templates or use macros or inline functions from this
-// file, or you compile this file and link it with other files to
-// produce an executable, this file does not by itself cause the
-// resulting executable to be covered by the GNU General Public
-// License. This exception does not however invalidate any other
-// reasons why the executable file might be covered by the GNU General
-// Public License.
+// 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 PROFCXX_PROFILER_STATE_H__
-#define PROFCXX_PROFILER_STATE_H__ 1
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-#include <cstdio>
-#else
-#include <stdio.h>
-#endif
+#ifndef _GLIBCXX_PROFILE_PROFILER_STATE_H
+#define _GLIBCXX_PROFILE_PROFILER_STATE_H 1
namespace __gnu_profile
{
-
-/** @brief Profiling mode on/off state. */
-template <int _Unused=0>
-class __state
-{
- public:
-
- static __state<_Unused>* _S_diag_state;
-
- __state() : _M_state(__INVALID) {}
- ~__state() {}
-
- bool __is_on() { return _M_state == __ON; }
- bool __is_off() { return _M_state == __OFF; }
- bool __is_invalid() { return _M_state == __INVALID; }
- void __turn_on() { _M_state = __ON; }
- void __turn_off() { _M_state = __OFF; }
-
- private:
enum __state_type { __ON, __OFF, __INVALID };
- __state_type _M_state;
-};
-template <int _Unused>
-__state<_Unused>* __state<_Unused>::_S_diag_state = NULL;
+ _GLIBCXX_PROFILE_DEFINE_DATA(__state_type, __state, __INVALID);
-inline bool __is_on()
-{
- return __state<0>::_S_diag_state && __state<0>::_S_diag_state->__is_on();
-}
+ 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 __is_off()
-{
- return __state<0>::_S_diag_state && __state<0>::_S_diag_state->__is_off();
-}
+ inline bool
+ __turn_on()
+ { return __turn(__ON); }
-inline bool __is_invalid()
-{
- return (!__state<0>::_S_diag_state
- || __state<0>::_S_diag_state->__is_invalid());
-}
+ inline bool
+ __turn_off()
+ { return __turn(__OFF); }
-inline void __turn_on()
-{
- if (!__state<0>::_S_diag_state) {
- __state<0>::_S_diag_state = new __state<0>();
- }
- __state<0>::_S_diag_state->__turn_on();
-}
+ inline bool
+ __is_on()
+ { return _GLIBCXX_PROFILE_DATA(__state) == __ON; }
-inline void __turn_off()
-{
- if (!__state<0>::_S_diag_state) {
- __state<0>::_S_diag_state = new __state<0>();
- }
- __state<0>::_S_diag_state->__turn_off();
-}
+ 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 /* PROFCXX_PROFILER_STATE_H__ */
+#endif /* _GLIBCXX_PROFILE_PROFILER_STATE_H */
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