tstcoda_main.cxx

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// Test of THaCodaData abstract class
// THaCodaFile and THaEtClient both inherit from THaCodaData.
// R. Michaels, March 2001.
 
#include "THaCodaFile.h"
#include "THaEtClient.h"
#include "TString.h"
#include <iostream>
 
using namespace std;
using namespace Decoder;
 
void usage();
void do_something(UInt_t* data);
 
int main(int argc, char* argv[])
{
 
  if (argc < 3) {
     usage();
     return 1;
  }
 
  int choice1 = atoi(argv[1]);
  int choice2 = atoi(argv[2]);
 
  THaCodaData *coda;      // THaCodaData is abstract
 
  if (choice1 == 1) {  // CODA File
 
// CODA file "snippet.dat" is a disk file of CODA data.  
      TString filename("snippet.dat");
 
      if (choice2 == 1) { // Two types of THaCodaFile constructors 
         coda = new THaCodaFile();
         if (coda->codaOpen(filename) != 0) {
            cout << "ERROR:  Cannot open CODA data" << endl;
            return 1;
         }
      } else {  // 2nd type of c'tor
         coda = new THaCodaFile(filename);
      }
 
  } else {         // Online ET connection
 
      int mymode = 1;
      TString mycomputer("129.57.32.30");
      TString mysession("eel1");
 
      if (choice2 == 1) {   // Three different types of constructor 
         coda = new THaEtClient();
         if (coda->codaOpen(mycomputer, mysession, mymode) != 0) {
            cout << "ERROR:  Cannot open ET connection" << endl;
            return 1;
          }
      } else if (choice2 == 2) {
         coda = new THaEtClient(mycomputer, mymode); 
      } else {
         coda = new THaEtClient(mycomputer, mysession, mymode);  
      }
 
  }
 
// Loop over events
  unsigned NUMEVT=20000;
 
  for (unsigned iev = 0; iev < NUMEVT; iev++) {
 
      int status = coda->codaRead();  
 
      if (status != 0) {
        if ( status == -1) {
           if (choice1 == 1) cout << "End of CODA file. Bye bye." << endl;
           if (choice1 == 2) cout << "CODA/ET not running. Bye bye." << endl;
        } else {
           cout << "ERROR: codaRread status = " << hex << status << endl;
        }
        coda->codaClose();
        return 0;
 
      } else {
        
        do_something( coda->getEvBuffer() );
 
      }
  }
 
  coda->codaClose();
  return 0;
}
 
 
void usage() {  
  cout << "Usage:  'tstcoda choice1 choice2' " << endl;
  cout << "\n where choice1 = " << endl;
  cout << "   1. open a CODA file and print data" << endl;
  cout << "   2. open an ET connection and print data "<<endl;
  cout << "\n and choice2 = " << endl;
  cout << "1 - 3 are different ways to open connection "<<endl;
  cout << "If CODA file, you have 2 choices "<<endl;
  cout << "If ET connection, you have 3 choices "<<endl;
}
 
void do_something (UInt_t* data) {
  unsigned len = data[0] + 1;
  unsigned evtype = data[1]>>16;
  unsigned evnum = data[4];
 // Crude event dump
  cout << "\n\n Event number " << dec << evnum;
  cout << " length " << len << " type " << evtype << endl;
  unsigned ipt = 0;
  for (unsigned j = 0; j < (len/5); j++) {
      cout << dec << "\n evbuffer[" << ipt << "] = ";
      for (unsigned k=j; k<j+5; k++) {
         cout << hex << data[ipt++] << " ";
      }
      cout << endl;
  }
  if (ipt < len) {
      cout << dec << "\n evbuffer[" << ipt << "] = ";
      for (unsigned k=ipt; k<len; k++) {
         cout << hex << data[ipt++] << " ";
      }
      cout << endl;
  }
}