JPutData.cc

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

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"
#include "Jeep/JTimekeeper.hh"
#include "JSystem/JTime.hh"
#include "JNet/JControlHost.hh"


/**
 * \file
 *
 * Auxiliary program to send messages to ControlHost server.
 *
 * The option <tt>-H <hostname>[:port]</tt> correponds to the hostname and the port of the server, respectively.
 * The options <tt>-t</tt> and <tt>-T</tt> correspond to the ControlHost tag(s) for free and all subscription, respectively.
 * The option <tt>-R</tt> corresponds to the rate at which messages will be sent.
 * \author mdejong
 */
int main(int argc, const char *argv[])
{
  using namespace std;
  using namespace JPP;

  string          hostname;
  JTag            tag;
  JTag            Tag;
  double          rate_Hz;
  int             numberOfEvents;
  int             size;
  int             debug;
  
  try {

    JParser<> zap("Auxiliary program to send messages to ControlHost server.");

    zap['H'] = make_field(hostname)        = "localhost";
    zap['t'] = make_field(tag)             = DISPTAG_UNDEFINED;
    zap['T'] = make_field(Tag)             = DISPTAG_UNDEFINED;
    zap['R'] = make_field(rate_Hz);
    zap['n'] = make_field(numberOfEvents)  = numeric_limits<int>::max();
    zap['s'] = make_field(size)            = 1024;
    zap['d'] = make_field(debug)           = 3;

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


  if (tag == DISPTAG_UNDEFINED && Tag == DISPTAG_UNDEFINED) {
    FATAL("No tags specified.");
  }

  JControlHost::Throw(true); 
  
  try {

    JControlHost out(hostname);

    JTimekeeper timer((long long int) (1.0e6 / rate_Hz));
    
    vector<char> buffer(size);

    for (int i = 0; i != size; ++i) {
      buffer[i] = 'a' + (i%26);
    }

    int all = 0;
    int few = 0;

    timer.reset();

    const long long int t0 = getLocalTime();

    for (int i = 1; i <= numberOfEvents; ++i) {

      if (Tag != DISPTAG_UNDEFINED) { out.PutFullData(Tag, buffer.data(), buffer.size()); ++all; }
      if (tag != DISPTAG_UNDEFINED) { out.PutFullData(tag, buffer.data(), buffer.size()); ++few; }

      if (i%100 == 0) {

        const long long int t1 = getLocalTime();

        DEBUG("Time    [us] " << setw(10) << t1 - t0 << endl);
        DEBUG("<delay> [us] " << setw(10) << timer.getDelay() / i << endl);
        DEBUG("Count all    " << setw(10) << all << endl);
        DEBUG("Count few    " << setw(10) << few << endl);
      }

      timer.wait();
    }
  }    
  catch(const JControlHostException& error) {
    ERROR(error << endl);
  }
}