Function cache_struct_init

libCacheSim/cache/cache.c:28–69

* @brief this function is called by all eviction algorithms to initialize the * cache * * @param ccache_params common cache parameters * @param init_params eviction algorithm specific parameters * @return cache_t* pointer to the cache */

 * @return cache_t* pointer to the cache
 */
cache_t *cache_struct_init(const char *const cache_name, const common_cache_params_t params,
                           const void *const init_params) {
  cache_t *cache = my_malloc(cache_t);
  memset(cache, 0, sizeof(cache_t));
  strncpy(cache->cache_name, cache_name, CACHE_NAME_ARRAY_LEN-1);
  cache->cache_name[CACHE_NAME_ARRAY_LEN-1] = '\0';
  if (init_params != NULL) {
    strncpy(cache->init_params, init_params, CACHE_INIT_PARAMS_LEN-1);
    cache->init_params[CACHE_INIT_PARAMS_LEN-1] = '\0';
  }
  cache->cache_size = params.cache_size;
  cache->eviction_params = NULL;
  cache->admissioner = NULL;
  cache->prefetcher = NULL;
  cache->future_stack_dist = NULL;
  cache->future_stack_dist_array_size = 0;
  cache->default_ttl = params.default_ttl;
  cache->n_req = 0;
  cache->to_evict_candidate = NULL;
  cache->to_evict_candidate_gen_vtime = -1;

  cache->can_insert = cache_can_insert_default;
  cache->get_occupied_byte = cache_get_occupied_byte_default;
  cache->get_n_obj = cache_get_n_obj_default;

  /* this option works only when eviction age tracking
   * is on in config.h */
#if defined(TRACK_EVICTION_V_AGE)
  cache->track_eviction_age = true;
#endif
#if defined(TRACK_DEMOTION)
  cache->track_demotion = true;
#endif

  int hash_power = HASH_POWER_DEFAULT;
  if (params.hashpower > 0 && params.hashpower < 40) hash_power = params.hashpower;
  cache->hashtable = create_hashtable(hash_power);
  hashtable_add_ptr_to_monitoring(cache->hashtable, &cache->q_head);
  hashtable_add_ptr_to_monitoring(cache->hashtable, &cache->q_tail);

  return cache;
}

/**
 * @brief this function is called by all eviction algorithms to free the cache