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#include "bu/client.h"
#include "bu/socket.h"
#include <stdlib.h>
#include <errno.h>
#include "bu/exceptions.h"
#include "bu/protocol.h"
/** Read buffer size. */
#define RBS (1024*2)
Bu::Client::Client( Bu::Socket *pSocket ) :
pSocket( pSocket ),
pProto( NULL ),
nRBOffset( 0 )
{
}
Bu::Client::~Client()
{
}
void Bu::Client::processInput()
{
char buf[RBS];
size_t nRead, nTotal=0;
for(;;)
{
nRead = pSocket->read( buf, nRead );
if( nRead < 0 )
{
throw Bu::ConnectionException(
excodeReadError,
"Read error: %s",
strerror( errno )
);
}
else if( nRead == 0 )
{
break;
}
else
{
nTotal += nRead;
sReadBuf.append( buf, nRead );
if( !pSocket->canRead() )
break;
}
}
if( nTotal == 0 )
{
pSocket->close();
}
if( pProto && nTotal )
{
pProto->onNewData( this );
}
}
void Bu::Client::processOutput()
{
if( sWriteBuf.getSize() > 0 )
{
pSocket->write( sWriteBuf.getStr(), sWriteBuf.getSize() );
sWriteBuf.clear();
}
}
void Bu::Client::setProtocol( Protocol *pProto )
{
this->pProto = pProto;
}
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( !pSocket ) return false;
return pSocket->isOpen();
}
void Bu::Client::write( const char *pData, int nBytes )
{
sWriteBuf.append( 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::read( char *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;
}
}
long Bu::Client::getInputSize()
{
return sReadBuf.getSize()-nRBOffset;
}
const Bu::Socket *Bu::Client::getSocket() const
{
return pSocket;
}
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