/*************************************************************//**
Creates a hash table with >= n array cells. The actual number of cells is
chosen to be a prime number slightly bigger than n.
@return own: created table */
UNIV_INTERN
hash_table_t*
hash_create(
/*========*/
ulint n) /*!< in: number of array cells */
{
hash_cell_t* array;
ulint prime;
hash_table_t* table;
prime = ut_find_prime(n);
table = mem_alloc(sizeof(hash_table_t));
array = ut_malloc(sizeof(hash_cell_t) * prime);
table->array = array;
table->n_cells = prime;
#ifndef UNIV_HOTBACKUP
# if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
table->adaptive = FALSE;
# endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
table->n_mutexes = 0;
table->mutexes = NULL;
table->heaps = NULL;
#endif /* !UNIV_HOTBACKUP */
table->heap = NULL;
ut_d(table->magic_n = HASH_TABLE_MAGIC_N);
/* Initialize the cell array */
hash_table_clear(table);
return(table);
}
hash_table_t*
hash_create(
/*========*/
/* out, own: created table */
ulint n) /* in: number of array cells */
{
hash_cell_t* array;
ulint prime;
hash_table_t* table;
ulint i;
hash_cell_t* cell;
prime = ut_find_prime(n);
table = mem_alloc(sizeof(hash_table_t));
array = ut_malloc(sizeof(hash_cell_t) * prime);
table->array = array;
table->n_cells = prime;
table->n_mutexes = 0;
table->mutexes = NULL;
table->heaps = NULL;
table->heap = NULL;
table->magic_n = HASH_TABLE_MAGIC_N;
/* Initialize the cell array */
for (i = 0; i < prime; i++) {
cell = hash_get_nth_cell(table, i);
cell->node = NULL;
}
return(table);
}
