/*!

 * \copy

 *     Copyright (c)  2009-2015, Cisco Systems

 *     All rights reserved.

 *

 *     Redistribution and use in source and binary forms, with or without

 *     modification, are permitted provided that the following conditions

 *     are met:

 *

 *        * Redistributions of source code must retain the above copyright

 *          notice, this list of conditions and the following disclaimer.

 *

 *        * Redistributions in binary form must reproduce the above copyright

 *          notice, this list of conditions and the following disclaimer in

 *          the documentation and/or other materials provided with the

 *          distribution.

 *

 *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 *     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 *     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

 *     FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

 *     COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

 *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

 *     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

 *     CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 *     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 *     ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 *     POSSIBILITY OF SUCH DAMAGE.

 *

 *

 * \file    WelsThread.h

 *

 * \brief   Interfaces introduced in threads

 *

 * \date    5/09/2012 Created

 *

 *************************************************************************************

 */

#ifndef _WELS_THREAD_H_

#define _WELS_THREAD_H_

#include "macros.h"

#include "WelsLock.h"

#include "WelsThreadLib.h"

namespace WelsCommon {

class CWelsThread {

 public:

  CWelsThread();

  virtual ~CWelsThread();

  virtual void Thread();

  virtual void ExecuteTask() = 0;

  virtual WELS_THREAD_ERROR_CODE Start();

  virtual void Kill();

  WELS_MUTEX          m_hMutex;

 protected:

  static WELS_THREAD_ROUTINE_TYPE  TheThread (void* pParam);

  void SetRunning (bool bRunning) {

    CWelsAutoLock  cLock (m_cLockStatus);

    m_bRunning = bRunning;

  }

  void SetEndFlag (bool bEndFlag) {

    CWelsAutoLock  cLock (m_cLockStatus);

    m_bEndFlag = bEndFlag;

  }

  bool GetRunning() const {

    return m_bRunning;

  }

  bool GetEndFlag() const {

    return m_bEndFlag;

  }

  void SignalThread() {

    WelsEventSignal (&m_hEvent, &m_hMutex, &m_iConVar);

  }

 private:

  WELS_THREAD_HANDLE  m_hThread;

  WELS_EVENT          m_hEvent;

  CWelsLock           m_cLockStatus;

  bool                m_bRunning;

  bool                m_bEndFlag;

  int                 m_iConVar;

  DISALLOW_COPY_AND_ASSIGN (CWelsThread);

};

}

#endif