#ifndef MESSAGEMGR_U
#define MESSAGEMGR_H
/////////////////////////////////////////////////////////////////////////
// MessageMgr.h - Provides asynchronous message-passing IPC            //
// ver 1.2                                                             //
// Language:    Visual C++ 2008                                        //
// Platform:    Dell Precision T7400, Vista Ultimate, SP1              //
// Application: Help for CSE687 - Object Oriented Design, Project #2   //
// Author:      Jim Fawcett, CST 4-187, Syracuse University            //
//              (315) 443-3948, jfawcett@twcny.rr.com                  //
/////////////////////////////////////////////////////////////////////////
/*
 * Module Operations:
 * ==================
 * Support asynchronous message-passing using the MMFmgr module.  This 
 * module supplies queues and threads to support simple sending and
 * receiving of strings between two processes.
 *
 * NOTE: This module supports two way communication, but only for
 *       one client and one server
 *
 * Required Files:
 *  MessageMgr.h, MessageMgr.cpp, MMFmgr.h, MMFmgr.cpp, 
 *  Threads.h, Threads.cpp, BlockingQueue.h, locks.h
 *
 * Build Command:
 *   cl /EHa /DTEST_MESSAGEMGR MessageMgr.cpp MMFmgr.cpp Threads.cpp 
 *
 * Maintenance History:
 * ver 1.2 : 05 May 09
 * - added CloseHandle(hStarted_) to MsgMgr::~MsgMgr() to fix a bug in
 *   the wait() method which caused it to never block after the first call.
 * ver 1.1 : 26 Mar 09
 * - removed debugString references and some no longer needed includes.
 * - fixed a problem with project references to threads and locks modules
 * ver 1.0 : 22 Mar 09
 * - first release
 */


#include <string>
#include "BlockingQueue.h"
#include "..\MMFmgr\MMFmgr.h"

class MsgMgr
{
public:
  MsgMgr(MMFmgr::role);
  ~MsgMgr();
  void putMessage(const std::string& msg);
  std::string getMessage();
  void wait();
private:
  BQueue<std::string>* pInQ;
  BQueue<std::string>* pOutQ;
  MMFmgr* pInMMF;
  MMFmgr* pOutMMF;
  HANDLE hStarted_;
  MMFmgr::role role_;
};
#endif