Equalizer 1.0

timedLock.h

00001 
00002 /* Copyright (c) 2005-2011, Stefan Eilemann <eile@equalizergraphics.com> 
00003  *
00004  * This library is free software; you can redistribute it and/or modify it under
00005  * the terms of the GNU Lesser General Public License version 2.1 as published
00006  * by the Free Software Foundation.
00007  *  
00008  * This library is distributed in the hope that it will be useful, but WITHOUT
00009  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00010  * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
00011  * details.
00012  * 
00013  * You should have received a copy of the GNU Lesser General Public License
00014  * along with this library; if not, write to the Free Software Foundation, Inc.,
00015  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00016  */
00017 
00018 #ifndef COBASE_TIMEDLOCK_H
00019 #define COBASE_TIMEDLOCK_H
00020 
00021 #include <co/base/api.h>
00022 #include <co/base/condition.h> // member
00023 #include <co/base/nonCopyable.h> // base class
00024 #include <co/base/types.h>
00025 
00026 namespace co
00027 {
00028 namespace base
00029 {
00031     class TimedLock : public NonCopyable
00032     {
00033     public:
00035         COBASE_API TimedLock();
00036 
00038         COBASE_API ~TimedLock();
00039 
00049         COBASE_API bool set( const uint32_t timeout = EQ_TIMEOUT_INDEFINITE );
00050 
00052         COBASE_API void unset();
00053 
00060         COBASE_API bool trySet();
00061 
00068         bool isSet() { return _locked; }
00069 
00070     private:
00071         Condition _condition;
00072         bool _locked;
00073     };
00074 }
00075 }
00076 #endif //COBASE_TIMEDLOCK_H
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