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/* ------------------------------------------------------------------------
* $Id: Thread.hh,v 1.8 2001/06/29 15:00:38 elm Exp $
*
* This file is part of 3Dwm: The Three-Dimensional User Environment.
*
* 3Dwm: The Three-Dimensional User Environment:
* <http://www.3dwm.org>
*
* Chalmers Medialab
* <http://www.medialab.chalmers.se>
*
* ------------------------------------------------------------------------
* File created 2000-06-19 by Niklas Elmqvist.
*
* Copyright (c) 2000 Niklas Elmqvist <elm@3dwm.org>.
* Copyright (c) 2000 Steve Houston <shouston@programmer.net>.
* ------------------------------------------------------------------------
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
* ------------------------------------------------------------------------
*/
#ifndef _Thread_hh_
#define _Thread_hh_
// -- System Includes
#include <pthread.h>
// -- Local Includes
#include "Runnable.hh"
// -- Class Declarations
/**
* Simple Java-like implementation of POSIX threads.
*
* This class should really be turned into an abstract superclass and
* then have different implementations of it using different thread
* libraries. Then we need object factories for constructing the
* different implementations of the thread objects.
**/
class Thread {
public:
/**
* Constructor. Takes a runnable object as an argument.
*
* @param target the object to run in the thread.
**/
Thread(Runnable *target);
/**
* Destructor.
**/
virtual ~Thread();
/**
* Start this thread using the passed Runnable object. This will
* create the actual thread and call the run() method on the
* current Thread object. The thread will continue to run until
* the run() method of the Runnable object returns.
**/
virtual void start();
/**
* Wait for the termination of this thread. If the thread is not
* running, the method will just return and do nothing.
**/
virtual void join();
/**
* Is this thread running?
*
* @return true if the thread is running.
**/
bool isRunning(void) const {
return _running;
}
/**
* Call the run() method of the Runnable object. (Use the start()
* function to actually start the thread!) Don't use this method
* directly!
**/
virtual void run();
/**
* Kill the current thread. The thread will be cancelled and stop
* execution.
**/
virtual void kill();
protected:
/// POSIX thread object
pthread_t _thread;
/// Runnable object to call when executing thread
Runnable *_target;
/// Is the thread running or not?
bool _running;
};
#endif /* thread.hh */
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