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/*
* Copyright (C) 2007-2019 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_ITO_SERVER_H
#define BU_ITO_SERVER_H
#include <stdint.h>
#ifndef WIN32
#include <sys/select.h>
#endif
#include "bu/string.h"
#include "bu/list.h"
#include "bu/thread.h"
#include "bu/mutex.h"
#include "bu/synchroqueue.h"
#include "bu/hash.h"
#include "bu/clientlink.h"
#include "bu/clientlinkfactory.h"
namespace Bu
{
class TcpServerSocket;
class TcpSocket;
class Client;
/**
* Core of a network server. This class is distinct from a ServerSocket in
* that a ServerSocket is one listening socket, nothing more. Socket will
* manage a pool of both ServerSockets and connected Sockets along with
* their protocols and buffers.
*
* To start serving on a new port, use the addPort functions. Each call to
* addPort creates a new ServerSocket, starts it listening, and adds it to
* the server pool.
*
* All of the real work is done by scan, which will wait for up
* to the timeout set by setTimeout before returning if there is no data
* pending. scan should probably be called in some sort of tight
* loop, possibly in it's own thread, or in the main control loop.
*
* In order to use a Server you must subclass it and implement the pure
* virtual functions. These allow you to receive notification of events
* happening within the server itself, and actually makes it useful.
*@ingroup Threading Serving
*/
class ItoServer : public Thread
{
friend class ItoClient;
friend class SrvClientLinkFactory;
public:
ItoServer();
virtual ~ItoServer();
#ifdef WIN32
typedef unsigned int socket_t;
#else
typedef int socket_t;
#endif
void addPort( int nPort, int nPoolSize=40 );
void addPort( const String &sAddr, int nPort, int nPoolSize=40 );
//void scan();
void setTimeout( int nTimeoutSec, int nTimeoutUSec=0 );
void addClient( socket_t nSocket, int nPort );
virtual void onNewConnection( Client *pClient, int nPort )=0;
virtual void onClosedConnection( Client *pClient )=0;
protected:
virtual void run();
private:
class SrvClientLink;
class ItoClient : public Thread
{
friend class Bu::ItoServer::SrvClientLink;
public:
ItoClient( ItoServer &rSrv, socket_t nSocket, int nPort,
int nTimeoutSec, int nTimeoutUSec );
virtual ~ItoClient();
typedef SynchroQueue<Bu::String *> StringQueue;
StringQueue qMsg;
protected:
virtual void run();
private:
ItoServer &rSrv;
Client *pClient;
fd_set fdActive;
socket_t iSocket;
int iPort;
int nTimeoutSec;
int nTimeoutUSec;
Mutex imProto;
};
class SrvClientLink : public Bu::ClientLink
{
public:
SrvClientLink( ItoClient *pClient );
virtual ~SrvClientLink();
virtual void sendMessage( const Bu::String &sMsg );
private:
ItoClient *pClient;
};
class SrvClientLinkFactory : public Bu::ClientLinkFactory
{
public:
SrvClientLinkFactory( ItoServer &rSrv );
virtual ~SrvClientLinkFactory();
virtual Bu::ClientLink *createLink( Bu::Client *pClient );
private:
ItoServer &rSrv;
};
int nTimeoutSec;
int nTimeoutUSec;
fd_set fdActive;
typedef Hash<socket_t,TcpServerSocket *> ServerHash;
ServerHash hServers;
typedef Hash<socket_t,ItoClient *> ClientHash;
typedef SynchroQueue<ItoClient *> ClientQueue;
ClientHash hClients;
ClientQueue qClientCleanup;
Mutex imClients;
void clientCleanup( socket_t iSocket );
};
}
#endif
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