void ProgramOutputMultiplexer::appendLine(int port,
ProcessId pid,
const std::string& name,
const std::string& line) {
stdx::lock_guard<stdx::mutex> lk(mongoProgramOutputMutex);
boost::iostreams::tee_device<std::ostream, std::stringstream> teeDevice(cout, _buffer);
boost::iostreams::stream<decltype(teeDevice)> teeStream(teeDevice);
if (port > 0) {
teeStream << name << port << "| " << line << endl;
} else {
teeStream << name << pid << "| " << line << endl;
}
}
///
/// usage: ./readTemp port [channelString]
/// where channelString = e.g. "1,2,3-5,8"
///
int main( int argc, char** argv ) {
if( argc < 2 || argc > 3 ) {
std::cerr << " [" << argv[0] << "] ** ERROR: unrecognized command line options" << std::endl;
std::cerr << " Usage: readTemp port [channelString]" << std::endl;
std::cerr << " (where [channelString] e.g. = 1,2,3-5,8)" << std::endl;
exit( -1 );
}
unsigned int readingCounter = 0;
const time_t startingTime = time( NULL );
std::stringstream outputFileName;
outputFileName << "readTemp_output_" << startingTime << ".dat";
// dual stream, writing to cout and outputFile simultaneously
std::ofstream outFile( outputFileName.str().c_str() );
boost::iostreams::tee_device<std::ostream, std::ofstream> teeDevice( std::cout, outFile );
boost::iostreams::stream<boost::iostreams::tee_device<std::ostream, std::ofstream> > dualOut( teeDevice );
// init device anf give it some time
Keithley2700_t keithley(argv[1]);
sleep( 1 );
// no channels specified, read all
if (argc == 2) keithley.SetActiveChannels("0-9");
// pass selected channels to device
if (argc == 3) keithley.SetActiveChannels( argv[1] );
// log info
dualOut << std::endl;
dualOut << " Log starting: " << startingTime << " = " << asctime( localtime( &startingTime ) );
dualOut << " Logging to: " << outputFileName.str() << std::endl;
dualOut << std::endl;
// loop forever
while (true) {
// scan and fill theReading
reading_t theReading = keithley.Scan();
if( ! keithley.IsScanOk() ) continue;
// pretty print header, every ten lines
if( 0 == readingCounter % 10 ) {
dualOut << std::setw( 8 ) << std::setfill( ' ' ) << std::left << "";
dualOut << std::setw( 8 ) << std::setfill( ' ' ) << std::right << "seconds";
dualOut << std::setw( 2 ) << std::setfill( ' ' ) << std::right << "";
for( reading_t::const_iterator it = theReading.begin(); it < theReading.end(); ++it ) {
dualOut << std::setw( 12 ) << std::right << std::setfill( '.' ) << it->first;
}
dualOut << std::endl << std::flush;
}
// print readings
time_t currentTime = time( NULL );
dualOut << std::setw( 8 ) << std::setfill( ' ' ) << std::left << " <DATA>";
dualOut << std::setw( 8 ) << std::setfill( ' ' ) << std::right << currentTime - startingTime;
dualOut << std::setw( 2 ) << std::setfill( ' ' ) << std::right << "";
for( reading_t::const_iterator it = theReading.begin(); it < theReading.end(); ++it ) {
dualOut << std::setw( 12 ) << std::right << std::setfill( ' ' ) << it->second;
}
dualOut << std::endl;
// need to explicitly flush stream
dualOut.flush();
++readingCounter;
sleep(5);
}
}
