Function try_add_sql_pool

db/sqlpool.c:161–184

** WARNING: The "try_add_sql_pool" function assumes the hash lock is already ** held. */

**          held.
*/
static int try_add_sql_pool(const char *zName, int nThreads,
                            struct thdpool *pool)
{
    if (pool == NULL) return -1; /* cannot add, invalid pool */
    if (sqlengine_pool_hash == NULL)
    {
        sqlengine_pool_hash = hash_init_strptr(offsetof(pool_entry_t, zName));
        if (sqlengine_pool_hash == NULL) return -2; /* OOM (?) */
    }
    const char *zEntryName = (zName != NULL) ?
        thdpool_get_name(pool) : SQL_POOL_DEFLT_NAME;
    pool_entry_t *entry = hash_find(sqlengine_pool_hash, &zEntryName);
    if (entry != NULL) return -3; /* cannot add, already present */
    entry = calloc(1, sizeof(pool_entry_t));
    if (entry == NULL) return -4; /* OOM */
    entry->zName = zEntryName;
    entry->nThreads = nThreads; /* as specified */
    entry->pPool = pool;
    if (hash_add(sqlengine_pool_hash, entry) != 0) {
        free(entry);
        return -5;
    }
    return 0;
}

int get_default_sql_pool_max_threads(void)
{