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/*
* Copyright (C) 2007-2008 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.
*/
#include "bu/client.h"
#include "bu/socket.h"
#include <stdlib.h>
#include <errno.h>
#include "bu/protocol.h"
#include "bu/clientlink.h"
#include "bu/clientlinkfactory.h"
/** Read buffer size. */
#define RBS (1024*2)
Bu::Client::Client( Bu::Socket *pSocket, class Bu::ClientLinkFactory *pfLink ) :
pTopStream( pSocket ),
pSocket( pSocket ),
pProto( NULL ),
nRBOffset( 0 ),
bWantsDisconnect( false ),
pfLink( pfLink )
{
lFilts.prepend( pSocket );
}
Bu::Client::~Client()
{
for( FilterList::iterator i = lFilts.begin(); i; i++ )
{
delete *i;
}
pTopStream = pSocket = NULL;
}
void Bu::Client::processInput()
{
char buf[RBS];
size_t nRead, nTotal=0;
for(;;)
{
try
{
nRead = pTopStream->read( buf, RBS );
if( nRead == 0 )
{
break;
}
else
{
nTotal += nRead;
sReadBuf.append( buf, nRead );
if( !pTopStream->canRead() )
break;
}
}
catch( Bu::SocketException &e )
{
pTopStream->close();
bWantsDisconnect = true;
break;
}
}
if( nTotal == 0 )
{
pTopStream->close();
bWantsDisconnect = true;
}
if( pProto && nTotal )
{
pProto->onNewData( this );
}
}
void Bu::Client::processOutput()
{
if( sWriteBuf.getSize() > 0 )
{
int nAmnt = (sWriteBuf.getSize()<2048)?(sWriteBuf.getSize()):(2048);
int nReal = pTopStream->write( sWriteBuf.getStr(), nAmnt );
pTopStream->flush();
sWriteBuf.trimFront( nReal );
//sWriteBuf.clear();
}
}
void Bu::Client::setProtocol( Protocol *pProto )
{
this->pProto = pProto;
this->pProto->onNewConnection( this );
}
Bu::Protocol *Bu::Client::getProtocol()
{
return pProto;
}
void Bu::Client::clearProtocol()
{
pProto = NULL;
}
Bu::FString &Bu::Client::getInput()
{
return sReadBuf;
}
Bu::FString &Bu::Client::getOutput()
{
return sWriteBuf;
}
bool Bu::Client::isOpen()
{
if( !pTopStream ) return false;
return pTopStream->isOpen();
}
void Bu::Client::write( const Bu::FString &sData )
{
sWriteBuf += sData;
}
void Bu::Client::write( const void *pData, int nBytes )
{
sWriteBuf.append( (const char *)pData, nBytes );
}
void Bu::Client::write( int8_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::write( int16_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::write( int32_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::write( int64_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::write( uint8_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::write( uint16_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::write( uint32_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::write( uint64_t nData )
{
sWriteBuf.append( (const char *)&nData, sizeof(nData) );
}
void Bu::Client::read( void *pData, int nBytes )
{
memcpy( pData, sReadBuf.getStr()+nRBOffset, nBytes );
nRBOffset += nBytes;
if( sReadBuf.getSize()-nRBOffset == 0 )
{
sReadBuf.clear();
nRBOffset = 0;
}
// This is an experimental threshold, maybe I'll make this configurable
// later on.
else if(
(sReadBuf.getSize() >= 1024 && nRBOffset >= sReadBuf.getSize()/2) ||
(nRBOffset >= sReadBuf.getSize()/4)
)
{
sReadBuf.trimFront( nRBOffset );
nRBOffset = 0;
}
}
void Bu::Client::peek( void *pData, int nBytes, int nOffset )
{
memcpy( pData, sReadBuf.getStr()+nRBOffset+nOffset, nBytes );
}
void Bu::Client::seek( int nBytes )
{
nRBOffset += nBytes;
if( sReadBuf.getSize()-nRBOffset == 0 )
{
sReadBuf.clear();
nRBOffset = 0;
}
// This is an experimental threshold, maybe I'll make this configurable
// later on.
else if(
(sReadBuf.getSize() >= 1024 && nRBOffset >= sReadBuf.getSize()/2) ||
(nRBOffset >= sReadBuf.getSize()/4)
)
{
sReadBuf.trimFront( nRBOffset );
nRBOffset = 0;
}
}
long Bu::Client::getInputSize()
{
return sReadBuf.getSize()-nRBOffset;
}
const Bu::Socket *Bu::Client::getSocket() const
{
return pSocket;
}
void Bu::Client::disconnect()
{
bWantsDisconnect = true;
}
bool Bu::Client::wantsDisconnect()
{
return bWantsDisconnect;
}
void Bu::Client::close()
{
pTopStream->close();
}
Bu::ClientLink *Bu::Client::getLink()
{
return pfLink->createLink( this );
}
void Bu::Client::onMessage( const Bu::FString &sMsg )
{
if( pProto )
pProto->onMessage( this, sMsg );
}
void Bu::Client::tick()
{
if( pProto )
pProto->onTick( this );
}
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