Function read_one_req

libCacheSim/traceReader/reader.c:236–340

* @brief read one request from trace file * * @param reader * @param req * @return 0 if success, 1 if end of file */

 * @return 0 if success, 1 if end of file
 */
int read_one_req(reader_t *const reader, request_t *const req) {
  if (reader->mmap_offset >= reader->file_size) {
    DEBUG("read_one_req: end of file, current mmap_offset %zu, file size %zu\n",
          reader->mmap_offset, reader->file_size);
    req->valid = false;
    return 1;
  }

  if (reader->cap_at_n_req > 1 && reader->n_read_req >= reader->cap_at_n_req) {
    DEBUG("read_one_req: processed %ld requests capped by the user\n",
          (long)reader->n_read_req);
    req->valid = false;
    return 1;
  }

  int status = 0;
  size_t offset_before_read = reader->mmap_offset;
  if (reader->n_req_left > 0) {
    reader->n_req_left -= 1;
    req->clock_time = reader->last_req_clock_time;

  } else {
    reader->n_read_req += 1;
    req->hv = 0;
    req->ttl = 0;
    req->valid = true;

    switch (reader->trace_type) {
      case CSV_TRACE:
        offset_before_read = ftell(reader->file);
        status = csv_read_one_req(reader, req);
        break;
      case PLAIN_TXT_TRACE:;
        offset_before_read = ftell(reader->file);
        status = txt_read_one_req(reader, req);
        break;
      case BIN_TRACE:
        status = binary_read_one_req(reader, req);
        break;
      case VSCSI_TRACE:
        status = vscsi_read_one_req(reader, req);
        break;
      case TWR_TRACE:
        status = twr_read_one_req(reader, req);
        break;
      case TWRNS_TRACE:
        status = twrNS_read_one_req(reader, req);
        break;
      case ORACLE_GENERAL_TRACE:
        status = oracleGeneralBin_read_one_req(reader, req);
        break;
      case ORACLE_SIM_TWR_TRACE:
        status = oracleSimTwrBin_read_one_req(reader, req);
        break;
      case ORACLE_SYS_TWRNS_TRACE:
        status = oracleSysTwrNSBin_read_one_req(reader, req);
        break;
      case ORACLE_SIM_TWRNS_TRACE: