/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file conditionVarSimpleImpl.h
 * @author drose
 * @date 2007-06-19
 */

#ifndef CONDITIONVARSIMPLEIMPL_H
#define CONDITIONVARSIMPLEIMPL_H

#include "pandabase.h"
#include "selectThreadImpl.h"

#ifdef THREAD_SIMPLE_IMPL

#include "blockerSimple.h"
#include "mutexTrueImpl.h"

/**
 * Implements a simple condition variable using simulated user-space threads.
 */
class EXPCL_PANDA_PIPELINE ConditionVarSimpleImpl : public BlockerSimple {
public:
  INLINE ConditionVarSimpleImpl(MutexTrueImpl &mutex);
  INLINE ~ConditionVarSimpleImpl();

  void wait();
  void wait(double timeout);
  INLINE void notify();
  INLINE void notify_all();

private:
  void do_notify();
  void do_notify_all();

  MutexTrueImpl &_mutex;
};

#include "conditionVarSimpleImpl.I"

#endif  // THREAD_SIMPLE_IMPL

#endif