JMessageScheduler.cc

Go to the documentation of this file.

#include <string>
#include <iostream>
#include <iomanip>

#include "JLogger/JStreamLogger.hh"
#include "JLogger/JControlHostLogger.hh"
#include "JLogger/JMessageLogger.hh"
#include "JLogger/JMessageStream.hh"
#include "JLogger/JMessageScheduler.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to test message scheduling.
 * \author mdejong
 */
int main(int argc, char* argv[])
{
  using namespace std;

  string  message_logger;
  bool    use_cout;
  int     log_s;
  int     numberOfMessages;
  int     debug;

  try {

    JParser<> zap("Example program to test message scheduling.");

    zap['M'] = make_field(message_logger)  = "localhost";
    zap['c'] = make_field(use_cout);
    zap['T'] = make_field(log_s);
    zap['n'] = make_field(numberOfMessages);
    zap['d'] = make_field(debug)           = 3;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  using namespace JPP;

  cout.tie(&cerr);

  JLogger* out = NULL;
    
  if (use_cout)
    out = new JStreamLogger(cout);
  else
    out = new JControlHostLogger(message_logger);
    
  JMessageLogger    logger(out, argv[0], debug);
  JMessageScheduler scheduler(logger, JTimekeeper(log_s * 1000000));

  scheduler.setCredit(3);

  for (int i = 0; i != numberOfMessages; ++i) {

    cout << "sleep [s] " << i * log_s << endl;

    usleep(i * log_s * 1000000);

    for (int i = 0; i != numberOfMessages; ++i) {
      JErrorStream(scheduler) << i;
    }
  }
}