89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/***************************************************************************
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* Copyright (C) 2007 by Lothar May *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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/* Base class for threads (used by network client/server). */
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#ifndef _THREAD_H_
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#define _THREAD_H_
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#include <boost/thread.hpp>
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#include <boost/thread/barrier.hpp>
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#include <boost/shared_ptr.hpp>
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#ifndef NANOSECONDS_PER_SECOND
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#define NANOSECONDS_PER_SECOND 1000000000
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#endif
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#define THREAD_WAIT_INFINITE 0xFFFFFFFF
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class Thread
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{
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public:
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Thread();
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virtual ~Thread();
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// Start the thread. Will do nothing if the
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// thread was already started.
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void Run();
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// Signal that the thread should be terminated
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virtual void SignalTermination();
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// Wait for the termination of the thread.
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// Only one Thread should wait for the termination!
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// You SHOULD always call join for a thread.
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bool Join(unsigned msecTimeout);
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// Sleep the currently active thread.
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static void Msleep(unsigned msecs);
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protected:
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// Startup function.
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void MainWrapper();
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// Main function of the thread.
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virtual void Main() = 0;
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// Checks whether termination has been requested.
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bool ShouldTerminate() const;
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// Checks whether the thread is running.
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bool IsRunning() const;
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private:
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// Flag specifying whether the application code within the
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// thread was terminated.
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mutable boost::timed_mutex m_isTerminatedMutex;
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// Flag specifying whether the thread should be terminated.
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mutable boost::timed_mutex m_shouldTerminateMutex;
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mutable boost::shared_ptr<boost::timed_mutex::scoped_try_lock> m_userReqTerminateLock;
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// The boost thread object.
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boost::shared_ptr<boost::thread> m_threadObj;
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mutable boost::mutex m_threadObjMutex;
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mutable boost::shared_ptr<boost::barrier> m_threadStartBarrier;
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friend class ThreadStarter;
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};
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#endif
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