Thread.h

/*
 * 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
 *
 * Thread.h
 * A thread object.
 * Copyright (C) 2010 Simon Newton
 */

#ifndef INCLUDE_OLA_THREAD_THREAD_H_
#define INCLUDE_OLA_THREAD_THREAD_H_

#include <pthread.h>
#include <ola/base/Macro.h>
#include <ola/thread/Mutex.h>

namespace ola {
namespace thread {

typedef pthread_t ThreadId;

class Thread {
 public:
 Thread(): m_thread_id(), m_running(false) {}
 virtual ~Thread() {}

 virtual bool Start();
 virtual bool FastStart();
 virtual bool Join(void *ptr = NULL);
 bool IsRunning();

 ThreadId Id() const { return m_thread_id; }

 // Called by pthread_create
 void *_InternalRun();

 static inline ThreadId Self() { return pthread_self(); }

 protected:
 // Sub classes implement this.
 virtual void *Run() = 0;

 private:
 pthread_t m_thread_id;
 bool m_running;
 Mutex m_mutex; // protects m_running
 ConditionVariable m_condition; // use to wait for the thread to start

 DISALLOW_COPY_AND_ASSIGN(Thread);
};
} // namespace thread
} // namespace ola
#endif // INCLUDE_OLA_THREAD_THREAD_H_