ConsumerThread.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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * ConsumerThread.h
 * An thread which consumes Callbacks from a queue and runs them.
 * Copyright (C) 2011 Simon Newton
 */

#ifndef INCLUDE_OLA_THREAD_CONSUMERTHREAD_H_
#define INCLUDE_OLA_THREAD_CONSUMERTHREAD_H_

#include <ola/Callback.h>
#include <ola/base/Macro.h>
#include <ola/thread/Thread.h>
#include <queue>

namespace ola {
namespace thread {

class ConsumerThread: public ola::thread::Thread {
 public :
 typedef BaseCallback0<void>* Action;
 ConsumerThread(std::queue<Action> *callback_queue,
 const bool *shutdown,
 Mutex *mutex,
 ConditionVariable *condition_var,
 const Thread::Options& options = Thread::Options())
 : Thread(options),
 m_callback_queue(callback_queue),
 m_shutdown(shutdown),
 m_mutex(mutex),
 m_condition_var(condition_var) {
 }
 ~ConsumerThread() {}
 void *Run();

 private:
 std::queue<Action> *m_callback_queue;
 const bool *m_shutdown;
 Mutex *m_mutex;
 ConditionVariable *m_condition_var;

 void EmptyQueue();

 DISALLOW_COPY_AND_ASSIGN(ConsumerThread);
};
} // namespace thread
} // namespace ola
#endif // INCLUDE_OLA_THREAD_CONSUMERTHREAD_H_