(ModbusTCPSession): добавил вылавливание исключения CommFailed (закрытие соединения)

src/Communications/Modbus/ModbusTCPSession.cc

@@ -289,6 +289,8 @@ size_t ModbusTCPSession::getNextData( unsigned char* buf, int len )
 {
 	ssize_t res = ModbusTCPCore::getDataFD( sock->getSocket(), qrecv, buf, len );
 
+	try
+	{
 		if( res > 0 )
 			return res;
 
@@ -299,6 +301,11 @@ size_t ModbusTCPSession::getNextData( unsigned char* buf, int len )
 
 			return 0;
 		}
+	}
+	catch( UniSetTypes::CommFailed )
+	{
+
+	}
 
 	if( !cancelled && dlog->is_info() )
 		dlog->info() << peername << "(getNextData): client disconnected" << endl;
@@ -356,6 +363,8 @@ mbErrCode ModbusTCPSession::tcp_processing( ModbusRTU::ADUHeader& mhead )
 
 	pt.setTiming(10);
 
+	try
+	{
 		do
 		{
 			len = ModbusTCPCore::readDataFD( sock->getSocket(), qrecv, mhead.len );
@@ -364,6 +373,11 @@ mbErrCode ModbusTCPSession::tcp_processing( ModbusRTU::ADUHeader& mhead )
 				io.loop.iteration();
 		}
 		while( len == 0 && !pt.checkTime() );
+	}
+	catch( UniSetTypes::CommFailed )
+	{
+
+	}
 
 	if( len < mhead.len )
 	{