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Push Framework - A C++ toolkit for high performance server development

, 23 May 2012 Apache
Write asynchronous, multithreaded servers in a few lines of code. Monitor realtime activity with a deploy-only dashboard.
ChatApplication.zip
ChatAPI
ChatClient
res
.svn
entries
prop-base
ChatClient.ico.svn-base
props
text-base
ChatClient.ico.svn-base
ChatClient.rc2.svn-base
tmp
prop-base
props
text-base
ChatClient.ico
ChatPackets
ChatProtocol
ChatServer
ChatServer.vcproj.INTERNAL.Ahmed.Charfeddine.user
output
ChatServer.ini
TCPSocket
TCPSocket.zip
XMLProtocol
XMLProtocol.zip
ChatRobots.zip
ChatRobots
ChatRobots.ini
ProtoBufExample.zip
ProtoBufExampleClient
ProtoBufExampleProtocol
requests.pb.cc
responses.pb.cc
ProtoBufExampleServer
PushFramework_Essentials.zip
include
PushFramework.dll
PushFramework.lib
PushFramework_Sources.zip
private
QoS.zip
QoSExampleClient
QoSExampleProtocol
QoSExampleServer
/********************************************************************
	File :			Channel.h
	Creation date :	2010/6/27
		
	License :			Copyright 2010 Ahmed Charfeddine, http://www.pushframework.com

				   Licensed under the Apache License, Version 2.0 (the "License");
				   you may not use this file except in compliance with the License.
				   You may obtain a copy of the License at
				
					   http://www.apache.org/licenses/LICENSE-2.0
				
				   Unless required by applicable law or agreed to in writing, software
				   distributed under the License is distributed on an "AS IS" BASIS,
				   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
				   See the License for the specific language governing permissions and
				   limitations under the License.
	
	
*********************************************************************/
#ifndef Channel__INCLUDED
#define Channel__INCLUDED

#pragma once

#include "..\include\DataBuffer.h"
#include "..\include\Protocol.h"

#include "Overlap.h"

namespace PushFramework{



class ServerImpl;
struct ListenerOptions;

class CChannel
{
public:
	CChannel(ServerImpl* pServerImpl, ListenerOptions* pListenerOption);
	~CChannel();
	
	void initialize(SOCKET s, SOCKADDR_IN address, bool bIsObserver);
	void unintialize();
	Protocol* getProtocol();
private:
	bool bIsObserver;
	ListenerOptions* pListenerOption;
public:
	bool isObserverChannel();
	typedef unsigned int Key;
	typedef enum
	{
		Free = -1,
		WaitingForWrite =0,
		WaitingForAllIOs,
		Released,
		Connected,
		Attached,		
	};
	Key& getKey();
	int getStatus();
	ULONG& getRefCount();
	ULONG& getPostedIOs();
	COleDateTimeSpan getLifeDuration();
	std::string getClient();
	UINT getPeerPort();
	std::string getPeerIP();
	bool isReusable();
private:
	Key key; //address in the factory container.
	bool bReusable;//channel belongs to pool.
	ULONG refCount;//threads usage
	int status;//status
	ULONG      m_NumIOs;	// number of IOs currently posted
	COleDateTime dtCreationTime; 
	CRITICAL_SECTION csLock;
	std::string clientKey;
public:
	void Close(bool bWaitForSendsToComplete);
	bool PostReceive();
	int ReadReceivedBytes(DWORD dwIoSize);
	bool PushPacket(OutgoingPacket* pPacket);
	int OnSendCompleted(DWORD dwIoSize, bool& bIsBufferIdle);
	DataBuffer& GetReceiveBuffer();
private:
	DataBuffer inBuffer;
	//operation read buffer
	WSABUF	m_wsaInBuffer;
	BYTE *m_byInBuffer;//buffer passed for each read op
	OVERLAPPEDPLUS *pReadOverlap;

	WSABUF m_wsaOutBuffer;
	BYTE *m_byOutBuffer;//Buffer passed for each write op
	OVERLAPPEDPLUS *pWriteOverlap;
	DataBuffer oBuffer;
	BOOL bWriteInProgress;

private:
	SOCKET socket;
	UINT rPeerPort;
	std::string rPeerIP;

	bool WriteBytes();
	void CloseSocket();

private:
	void* lpContext;
public:
	void saveContext(void* lpContext);
	void* getContext();
	void attachToClient(const char* clientKey);
private:
	ServerImpl* pServerImpl;
};

}

#endif // Channel__INCLUDED

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License

This article, along with any associated source code and files, is licensed under The Apache License, Version 2.0

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About the Author

Ahmed Charfeddine
Technical Lead
Tunisia Tunisia
Services:
http://www.pushframework.com/?page_id=890
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Web01 | 2.8.141223.1 | Last Updated 23 May 2012
Article Copyright 2011 by Ahmed Charfeddine
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