lock.h

00001 /*
00002  *  Copyright (C) 2006  Helmut Grohne
00003  *
00004  *  This program is free software; you can redistribute it and/or modify
00005  *  it under the terms of the GNU General Public License as published by
00006  *  the Free Software Foundation; either version 2 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  This program is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU General Public License
00015  *  along with this program; if not, write to the Free Software
00016  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017  */
00018 
00019 #ifndef LIBMUTH_LOCK_H
00020 #define LIBMUTH_LOCK_H
00021 
00022 #include "config.h"
00023 #ifdef USE_PTHREAD
00024 #include "pthreadlock.h"
00025 typedef PthreadLock Lock;
00026 #else
00027 #include "dummylock.h"
00028 typedef DummyLock Lock;
00029 #endif
00030 
00037 class WithAcquired {
00038         private:
00039                 Lock &lock;
00040         public:
00045                 inline WithAcquired(Lock &l) : lock(l) { this->lock.acquire(); }
00049                 inline ~WithAcquired() { this->lock.release(); }
00050 };
00051 
00052 #define WITHACQUIRED(lock) const WithAcquired withacquired(lock)
00053 
00054 #endif

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