file2rb.cc

//+
// File : file2rb.cc
// Description : Get an event from a SeqRoot file and place it in Rbuf
//
// Author : Ryosuke Itoh, IPNS, KEK
// Date : 28 - Apr - 2012
//-
#include <string>
 
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
 
#include "framework/pcore/SeqFile.h"
#include "framework/pcore/RingBuffer.h"
 
#define RBUFSIZE 100000000
#define MAXEVTSIZE  400000000
 
using namespace Belle2;
using namespace std;
 
int main(int argc, char** argv)
{
  if (argc < 3) {
    printf("file2rb : rbufname filename neof\n");
    exit(-1);
  }
 
  SeqFile* file = new SeqFile(argv[2], "r");
  if (file->status() <= 0) {
    perror("file open");
    exit(-1);
  }
 
  //  RingBuffer* rbuf = new RingBuffer(argv[1], RBUFSIZE);
  RingBuffer* rbuf = new RingBuffer(argv[1]);
  rbuf->dump_db();
  char* evbuf = new char[MAXEVTSIZE];
 
  // Skip the first record (StreamerInfo)
  int is = file->read(evbuf, MAXEVTSIZE);
  if (is <= 0) exit(-1);
 
  for (;;) {
    int is = file->read(evbuf, MAXEVTSIZE);
    if (is <= 0) break;
    if (is > MAXEVTSIZE) {
      printf("Event size too large : %d\n", is);
      continue;
    }
 
    // Put the message in ring buffer
    int irb = 0;
    for (;;) {
      irb = rbuf->insq((int*)evbuf, (is - 1) / 4 + 1);
      if (irb >= 0) break;
      //      usleep(100);
      usleep(20);
    }
  }
}