WtBroadcastServerClient has been abandoned, because it served two tasks. It is split up into and replaced by WtServerPusherClient and WtTimedServerPusherClient.

Technical facts

Application type(s)

Web application

Operating system(s) or programming environment(s)

Lubuntu 11.04 (natty)

IDE(s):

Qt Creator 2.0.1

Project type:

Console application

C++ standard:

C++0x

Compiler(s):

G++ 4.5.2

Libraries used:

Boost: version 1.42
STL: GNU ISO C++ Library, version 4.5.2
Wt: version 3.1.9

wtbroadcastserverclient.cpp


//---------------------------------------------------------------------------

/*

WtBroadcastServerClient, client of WtBroadcastServer

Copyright (C) 2011 Richel Bilderbeek



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, either version 3 of the License, or

(at your option) any later version.



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, see <http://www.gnu.org/licenses/>.

*/

//---------------------------------------------------------------------------

//From http://www.richelbilderbeek.nl/CppWtBroadcastServerClient.htm

//---------------------------------------------------------------------------

#include <boost/bind.hpp>

//---------------------------------------------------------------------------

#include <Wt/WApplication>

//---------------------------------------------------------------------------

#include "wtbroadcastserver.h"

#include "wtbroadcastserverclient.h"

//---------------------------------------------------------------------------

WtBroadcastServerClient::WtBroadcastServerClient()

{

  Wt::WApplication::instance()->enableUpdates(true);

  WtBroadcastServer::GetInstance()->Connect(

    this,boost::bind(&WtBroadcastServerClient::OnServer,this));



  //Never call virtual functions during construction or destruction

  //Scott Meyers, Effective C++, item 9

  //OnServer();

}

//---------------------------------------------------------------------------

WtBroadcastServerClient::~WtBroadcastServerClient()

{

  Wt::WApplication::instance()->enableUpdates(false);

  WtBroadcastServer::GetInstance()->Disconnect(this);

}

//---------------------------------------------------------------------------

const std::string WtBroadcastServerClient::GetVersion()

{

  return "1.0";

}

//---------------------------------------------------------------------------

const std::vector<std::string> WtBroadcastServerClient::GetVersionHistory()

{

  std::vector<std::string> v;

  v.push_back("2011-07-27: version 1.0: initial version");

  return v;

}

//---------------------------------------------------------------------------

void WtBroadcastServerClient::OnServer()

{

  UpdatePage();

  Wt::WApplication::instance()->triggerUpdate();

}

//---------------------------------------------------------------------------

wtbroadcastserverclient.h


//---------------------------------------------------------------------------

#ifndef WTBROADCASTSERVERCLIENT_H

#define WTBROADCASTSERVERCLIENT_H

//---------------------------------------------------------------------------

///WtBroadcastServerClient is a client responding to WtBroadcastServer

///and to be used as a base class

struct WtBroadcastServerClient

{

  virtual ~WtBroadcastServerClient();



  ///Get the version of this class

  static const std::string GetVersion();



  ///Get the version history of this class

  static const std::vector<std::string> GetVersionHistory();



  ///UpdatePage is called when the WtBroadcastServer triggers an update by timer

  virtual void UpdatePage() = 0;



  protected:

  ///WtBroadcastServerClient constructor is protected

  ///because it is to be used as a base class

  WtBroadcastServerClient();



  private:

  ///Respond to the server

  void OnServer();

};

//---------------------------------------------------------------------------

#endif // WTBROADCASTSERVERCLIENT_H

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(C++) WtBroadcastServerClient

Technical facts

wtbroadcastserverclient.cpp

wtbroadcastserverclient.h