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Network Development Kit 2.0

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29 Dec 2006CPOL 2.9M   25.7K   495  
Network Development Kit is a set of simple classes for a client-server architecture.
////////////////////////////////////////////////////////////////////////////////
//                                                                            //
// NDK 2.0 - Network Development Kit                                          //
//                                                                            //
// Authors: Sebastien Lachance                                                //
//                                                                            //
// E-mail:  netblitz@rocler.qc.ca                                             //
//                                                                            //
// -------------------------------------------------------------------------- //
//                                                                            //
// Permission to use, copy, modify, and distribute this software for any      //
// purpose and without fee is hereby granted. This is no guarantee about the  //
// use of this software. For any comments, bugs or thanks, please email us.   //
//                                                                            //
// -------------------------------------------------------------------------- //
//                                                                            //
// Targeted Platform: Any Windows version                                     //
//                                                                            //
// Last modification: January 2002                                            //
//                                                                            //
// History:                                                                   //
//                                                                            //
// 1- First release of this file.                                             //
// 2- The class is renamed and some optimizations are applied. Hungarian      //
//    notation is used.                                                       //
//                                                                            //
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
// Includes                                                                   //
////////////////////////////////////////////////////////////////////////////////
#pragma once
#include "NDKMessage.h"
#include "NDKUser.h"

////////////////////////////////////////////////////////////////////////////////
// Forward declarations                                                       //
////////////////////////////////////////////////////////////////////////////////
class CNDKServerSocket;

////////////////////////////////////////////////////////////////////////////////
// Defines                                                                    //
////////////////////////////////////////////////////////////////////////////////
typedef CArray<long, long>                CLongArray;
typedef CList<CNDKUser, CNDKUser &>       CUserList;
typedef CList<long, long>                 CLongList;
typedef CList<CNDKMessage, CNDKMessage &> CNDKMessageList;


////////////////////////////////////////////////////////////////////////////////
//                                                                            //
// CNDKUserManager (concrete class)                                           //
//                                                                            //
// -------------------------------------------------------------------------- //
//                                                                            //
// This class manages all connected user to the user. It can add and remove   //
// user and send/receive message.                                             //
//                                                                            //                                                                            //
////////////////////////////////////////////////////////////////////////////////

class CNDKUserManager  
{
public:
	////////////////////////////////////////////////////////////////////////////
	// Constructors / Destructor                                              //
	////////////////////////////////////////////////////////////////////////////

	// Constructor.
	CNDKUserManager();

	// Destructor.
	virtual ~CNDKUserManager();

	////////////////////////////////////////////////////////////////////////////
	// Attributes                                                             //
	////////////////////////////////////////////////////////////////////////////

	// Gets the number of users.
	long GetNbUsers() const;

	// Returns the Ids of all users.
	void GetUserIds(CLongArray& alIds) const;

	////////////////////////////////////////////////////////////////////////////
	// Operations                                                             //
	////////////////////////////////////////////////////////////////////////////

	// Adds a user then returns its new Id.
	long AddUser(CNDKServerSocket* pServerSocket);

	// Removes a user.
	BOOL RemoveUser(long lUserId);

	// Removes all users.
	void RemoveAllUsers();
	
	// Sends a message to a specified user.
	BOOL SendMessage(long lUserId, CNDKMessage& message);

	// Sends a message to all users.
	BOOL SendMessageToAllUsers(CNDKMessage& message, CLongList& listIds);

	// Sends a message to all users except for user specified in alUserIds.
	BOOL SendMessageToAllUsersExceptFor(const CLongArray& alUserIds, 
										CNDKMessage& message, CLongList& listIds);

	// Processes pending read.
	BOOL ProcessPendingRead(CNDKServerSocket* pSocket, long lErrorCode, 
							long& lUserId, CNDKMessageList& messages);
	
private:
	////////////////////////////////////////////////////////////////////////////
	// Private Operations                                                     //
	////////////////////////////////////////////////////////////////////////////

	// Gets a user from an Id.
	CNDKUser GetUserFromId(long lUserId) const;

	// Gets a user from a socket.
	CNDKUser GetUserFromSocket(CNDKServerSocket*) const;

private:
	CUserList m_users;
	long	  m_lNextId;
};

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior) Mirego
Canada Canada
My name is Sébastien Lachance.

I love C# developing Windows Phone and Windows 8 applications.

When I’m not in front of a computer, my hobbies include playing bridge, poker and other card games, biking, reading technology news.

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