Function parse_cmd

libCacheSim/bin/cachesim/cli_parser.c:274–365

* @brief parse the command line arguments * * @param argc * @param argv */

 * @param argv
 */
void parse_cmd(int argc, char *argv[], struct arguments *args) {
  init_arg(args);

  static struct argp argp = {.options = options,
                             .parser = parse_opt,
                             .args_doc = args_doc,
                             .doc = doc,
                             .children = NULL,
                             .help_filter = NULL,
                             .argp_domain = NULL};

  argp_parse(&argp, argc, argv, 0, 0, args);

  args->trace_path = args->args[0];
  args->trace_type_str = args->args[1];
  parse_eviction_algo(args, args->args[2]);

  /* the third parameter is the cache size, but we cannot parse it now
   * because we allow user to specify the cache size as fraction of the
   * working set size, and the working set size can only be calculated
   * after we set up the reader */
  assert(N_ARGS == 4);

  if (args->ofilepath[0] == '\0') {
    char *trace_filename = rindex(args->trace_path, '/');
    snprintf(args->ofilepath, OFILEPATH_LEN, "result/%s.cachesim",
             trace_filename == NULL ? args->trace_path : trace_filename + 1);
  }

  /* convert trace type string to enum */
  args->trace_type =
      trace_type_str_to_enum(args->trace_type_str, args->trace_path);

  reader_init_param_t reader_init_params;
  memset(&reader_init_params, 0, sizeof(reader_init_params));
  reader_init_params.ignore_obj_size = args->ignore_obj_size;
  reader_init_params.ignore_size_zero_req = true;
  reader_init_params.obj_id_is_num = true;
  reader_init_params.cap_at_n_req = args->n_req;
  reader_init_params.sampler = NULL;

  parse_reader_params(args->trace_type_params, &reader_init_params);

  if (args->sample_ratio > 0 && args->sample_ratio < 1 - 1e-6) {
    sampler_t *sampler = create_spatial_sampler(args->sample_ratio);
    reader_init_params.sampler = sampler;
  }

  if ((args->trace_type == CSV_TRACE || args->trace_type == PLAIN_TXT_TRACE) &&
      reader_init_params.obj_size_field == -1) {
    args->consider_obj_metadata = false;
    args->ignore_obj_size = true;
    reader_init_params.ignore_obj_size = true;
  }

  args->reader =
      setup_reader(args->trace_path, args->trace_type, &reader_init_params);