mariadb-columnstore-engine/writeengine/server/we_cpifeederthread.h

/* Copyright (C) 2014 InfiniDB, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

/*******************************************************************************
 * $Id$
 *
 *******************************************************************************/

/*
 * we_cpifeederthread.h
 *
 *  Created on: Mar 29, 2012
 *      Author: bpaul
 */

#pragma once

#include <queue>

namespace WriteEngine
{
class WEDataLoader;
class WECpiFeederThread;

class WECpiFeederRunner
{
 public:
  WECpiFeederRunner(WECpiFeederThread& Ref) : fOwner(Ref)
  { /* ctor */
  }
  virtual ~WECpiFeederRunner()
  { /* dtor */
  }
  void operator()();

 public:
  WECpiFeederThread& fOwner;
};

class WECpiFeederThread
{
 public:
  WECpiFeederThread(WEDataLoader& Ref);
  virtual ~WECpiFeederThread();

 public:
  void startFeederThread();
  void add2MsgQueue(messageqcpp::ByteStream& Ibs);
  void feedData2Cpi();
  void stopThread();
  bool isMsgQueueEmpty();
  // bool isPushing() { return fPushing; }
  bool isStopped()
  {
    return fStopped;
  }
  int getQueueSize()
  {
    return fMsgQueue.size();
  }
  bool isContinue();

 private:
  WEDataLoader& fOwner;

  boost::condition fFeederCond;
  boost::mutex fMsgQMutex;
  typedef std::queue<messageqcpp::SBS> WEMsgQueue;
  WEMsgQueue fMsgQueue;

  boost::thread* fpThread;
  bool fContinue;
  boost::mutex fContMutex;
  // bool fPushing;
  bool fStopped;

  friend class WEDataLoader;
};

} /* namespace WriteEngine */