====== Read data form daq file (March) ======

==== Files: ====

This method of reading data uses two classes.

https://github.com/shchablo/example_DAQ_TDC_lyon
----

==== How to use: ====

  LyPetiRead stream;                                                                                                                                                                            
  stream.open("path/to/file");                                                                                                                          
  int codeRead = 1;                                                            
  int size = stream.size();                                                    
  int pos = 0;                                                                 
  std::vector<zdaq::buffer*> buffers;                                                                             
  while(codeRead > 0) {                                                        
   codeRead = stream.read(&pos, &buffers); // read data form file                                                                           
   
   for(int j = 0; j < buffers.size(); j++) {
     buffers.at(j); // take buffer
     // do analysis here.
     // uint32_t* ibuf=(uint32_t*) buffers.at(j)->payload();
     // int absbcid = ibuf[3];
     // absbcid = (absbcid << 32) | ibuf[2];
     // printf("\n number %d, GTC %d, ABSBCID %lu, mezzanine number %u,",
     // ibuf[0], ibuf[1] & 0xFFFF, absbcid, ibuf[4]);
     // printf("IP address %u.%u.%u.%u,", ibuf[5] & 0xFF, (ibuf[5] >> 8) & 0xFF,
     // (ibuf[5] >> 16) & 0xFF, (ibuf[5] >> 24) & 0xFF);
     //  uint32_t nch = ibuf[6];
     // printf("\n channels -> %d \n", nch);
     // if (ibuf[6] > 0) {
     //   uint8_t* cbuf = ( uint8_t*)&ibuf[7];
     //   for (int i = 0; i < ibuf[6]; i++) {
     //     printf("ch=%d", cbuf[8*i]);
     //   }
     // }
   }
   
   // clear memory from old buffers
   for( int j = 0; j < buffers.size(); j++)                                   
    delete buffers.at(j);                                                    
   buffers.clear();                                                                     
  }
  stream.close();