55 lines
2.0 KiB
C++
55 lines
2.0 KiB
C++
// Support for concurrent programing -*- C++ -*-
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// Copyright (C) 2003
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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#ifndef _CONCURRENCE
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#define _CONCURRENCE 1
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// GCC's thread abstraction layer
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#include "bits/gthr.h"
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#if __GTHREADS
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# ifdef __GTHREAD_MUTEX_INIT
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# define __glibcxx_mutex_define_initialized(NAME) \
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__gthread_mutex_t NAME = __GTHREAD_MUTEX_INIT
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# else
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# define __glibcxx_mutex_define_initialized(NAME) \
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__gthread_mutex_t NAME; \
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__GTHREAD_MUTEX_INIT_FUNCTION(&NAME)
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# endif
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# define __glibcxx_mutex_lock(LOCK) __gthread_mutex_lock(&LOCK)
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# define __glibcxx_mutex_unlock(LOCK) __gthread_mutex_unlock(&LOCK)
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#else
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# define __glibcxx_mutex_define_initialized(NAME)
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# define __glibcxx_mutex_lock(LOCK)
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# define __glibcxx_mutex_unlock(LOCK)
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#endif
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#endif
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