Function SFIFO_init

libCacheSim/cache/eviction/fifo/SFIFO.c:119–164

* @brief initialize a SFIFO cache * * @param ccache_params some common cache parameters * @param cache_specific_params SFIFO specific parameters, e.g., "n-seg=4" */

 * @param cache_specific_params SFIFO specific parameters, e.g., "n-seg=4"
 */
cache_t *SFIFO_init(const common_cache_params_t ccache_params,
                    const char *cache_specific_params) {
  cache_t *cache = cache_struct_init("SFIFO", ccache_params, cache_specific_params);
  cache->cache_init = SFIFO_init;
  cache->cache_free = SFIFO_free;
  cache->get = SFIFO_get;
  cache->find = SFIFO_find;
  cache->insert = SFIFO_insert;
  cache->evict = SFIFO_evict;
  cache->remove = SFIFO_remove;
  cache->to_evict = SFIFO_to_evict;
  cache->get_occupied_byte = cache_get_occupied_byte_default;
  cache->get_n_obj = cache_get_n_obj_default;
  cache->can_insert = SFIFO_can_insert;

  if (ccache_params.consider_obj_metadata) {
    cache->obj_md_size = 8 * 2;
  } else {
    cache->obj_md_size = 0;
  }

  cache->eviction_params = (SFIFO_params_t *)malloc(sizeof(SFIFO_params_t));
  SFIFO_params_t *params = (SFIFO_params_t *)(cache->eviction_params);
  params->n_seg = 4;

  if (cache_specific_params != NULL) {
    SFIFO_parse_params(cache, cache_specific_params);
  }

  params->per_seg_max_size = ccache_params.cache_size / params->n_seg;
  params->fifo_heads =
      (cache_obj_t **)malloc(sizeof(cache_obj_t *) * params->n_seg);
  params->fifo_tails =
      (cache_obj_t **)malloc(sizeof(cache_obj_t *) * params->n_seg);
  params->fifo_n_objs = (int64_t *)malloc(sizeof(int64_t) * params->n_seg);
  params->fifo_n_bytes = (int64_t *)malloc(sizeof(int64_t) * params->n_seg);

  for (int i = 0; i < params->n_seg; i++) {
    params->fifo_heads[i] = NULL;
    params->fifo_tails[i] = NULL;
    params->fifo_n_objs[i] = 0;
    params->fifo_n_bytes[i] = 0;
  }

  return cache;
}

/**
 * @brief this function is the user facing API