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/*
* Modification History
*
* 2004-January-26 Jason Rohrer
* Created.
*
* 2004-January-27 Jason Rohrer
* Changed to support externally-specified file name prefixes.
*/
#include "minorGems/common.h"
#ifndef LOGGING_SOCKET_STREAM_CLASS_INCLUDED
#define LOGGING_SOCKET_STREAM_CLASS_INCLUDED
#include "SocketStream.h"
#include "minorGems/util/stringUtils.h"
#include <stdio.h>
/**
* A SocketStream that logs inbound and outbound data.
*
* @author Jason Rohrer
*/
class LoggingSocketStream : public SocketStream {
public:
/**
* Constructs a SocketStream.
*
* @param inSocket the newtork socket wrapped by this stream.
* inSocket is NOT destroyed when the stream is destroyed.
* @param inEnableInboundLog set to true to enable inbound logging.
* @param inEnableOutboundLog set to true to enable outbound logging.
* @param inLogSizeLimit the size limit of each log (both inbound
* and outbound), in bytes.
* Logging will stop after inLogSizeLimit bytes have been
* written to each log.
* @param inLogNamePrefix a string that will be used to name
* the log files (appending .in and .out for the two logs).
* Should be unique.
* Must be destroyed by caller.
*/
LoggingSocketStream( Socket *inSocket, char inEnableInboundLog,
char inEnableOutboundLog,
unsigned long inLogSizeLimit,
char *inLogNamePrefix );
virtual ~LoggingSocketStream();
// overrides the SocketStream implementations
long read( unsigned char *inBuffer, long inNumBytes );
long write( unsigned char *inBuffer, long inNumBytes );
protected:
char mEnableInboundLog;
char mEnableOutboundLog;
unsigned long mLogSizeLimit;
FILE *mInboundLogFile;
FILE *mOutboundLogFile;
unsigned long mInboundSizeSoFar;
unsigned long mOutboundSizeSoFar;
};
inline LoggingSocketStream::LoggingSocketStream(
Socket *inSocket,
char inEnableInboundLog,
char inEnableOutboundLog,
unsigned long inLogSizeLimit,
char *inLogNamePrefix )
: SocketStream( inSocket ),
mEnableInboundLog( inEnableInboundLog ),
mEnableOutboundLog( inEnableOutboundLog ),
mLogSizeLimit( inLogSizeLimit ),
mInboundLogFile( NULL ),
mOutboundLogFile( NULL ),
mInboundSizeSoFar( 0 ),
mOutboundSizeSoFar( 0 ) {
if( mEnableInboundLog ) {
char *inboundFileName = autoSprintf( "%s.in", inLogNamePrefix );
mInboundLogFile = fopen( inboundFileName, "wb" );
delete [] inboundFileName;
}
if( mEnableOutboundLog ) {
char *outboundFileName = autoSprintf( "%s.out", inLogNamePrefix );
mOutboundLogFile = fopen( outboundFileName, "wb" );
delete [] outboundFileName;
}
}
inline LoggingSocketStream::~LoggingSocketStream() {
if( mInboundLogFile != NULL ) {
fclose( mInboundLogFile );
mInboundLogFile = NULL;
}
if( mOutboundLogFile != NULL ) {
fclose( mOutboundLogFile );
mOutboundLogFile = NULL;
}
}
inline long LoggingSocketStream::read( unsigned char *inBuffer,
long inNumBytes ) {
long returnVal = SocketStream::read( inBuffer, inNumBytes );
if( mEnableInboundLog &&
mInboundSizeSoFar < mLogSizeLimit &&
returnVal == inNumBytes ) {
int numToLog = inNumBytes;
if( mInboundSizeSoFar + numToLog > mLogSizeLimit ) {
numToLog = mLogSizeLimit - mInboundSizeSoFar;
}
if( mInboundLogFile != NULL ) {
fwrite( inBuffer, 1, numToLog, mInboundLogFile );
fflush( mInboundLogFile );
}
mInboundSizeSoFar += numToLog;
}
return returnVal;
}
inline long LoggingSocketStream::write( unsigned char *inBuffer,
long inNumBytes ) {
long returnVal = SocketStream::write( inBuffer, inNumBytes );
if( mEnableOutboundLog &&
mOutboundSizeSoFar < mLogSizeLimit &&
returnVal == inNumBytes ) {
int numToLog = inNumBytes;
if( mOutboundSizeSoFar + numToLog > mLogSizeLimit ) {
numToLog = mLogSizeLimit - mOutboundSizeSoFar;
}
if( mOutboundLogFile != NULL ) {
fwrite( inBuffer, 1, numToLog, mOutboundLogFile );
fflush( mOutboundLogFile );
}
mOutboundSizeSoFar += numToLog;
}
return returnVal;
}
#endif
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