/**
* Get or create an ib_hash_t inside of @c tx for storing the operator state.
*
* The hash is stored at the key @c HASH_NAME_STR.
*
* @param[in] m This module.
* @param[in] tx The transaction containing @c tx->data which holds
* the @a operator_data object.
* @param[out] hash The fetched or created rule data hash. This is set
* to NULL on failure.
*
* @return
* - IB_OK on success.
* - IB_EALLOC on allocation failure
*/
static
ib_status_t get_or_create_operator_data_hash(
const ib_module_t *m,
ib_tx_t *tx,
ib_hash_t **hash
)
{
assert(tx != NULL);
ib_status_t rc;
/* Get or create the hash that contains the rule data. */
rc = ib_tx_get_module_data(tx, m, hash);
if ( (rc == IB_OK) && (*hash != NULL) ) {
return IB_OK;
}
rc = ib_hash_create(hash, tx->mm);
if (rc != IB_OK) {
return rc;
}
rc = ib_tx_set_module_data(tx, m, *hash);
if (rc != IB_OK) {
*hash = NULL;
}
return rc;
}
/**
* Get or create an ib_hash_t inside of @c tx for storing dfa rule data.
*
* The hash is stored at the key @c HASH_NAME_STR.
*
* @param[in] m PCRE module.
* @param[in] tx The transaction containing @c tx->data which holds
* the @a operator_data object.
* @param[out] hash The fetched or created rule data hash. This is set
* to NULL on failure.
*
* @return
* - IB_OK on success.
* - IB_EALLOC on allocation failure
*/
static
ib_status_t get_or_create_operator_data_hash(
const ib_module_t *m,
ib_tx_t *tx,
ib_hash_t **hash
)
{
assert(tx);
assert(tx->mp);
ib_status_t rc;
/* Get or create the hash that contains the rule data. */
rc = ib_tx_get_module_data(tx, m, hash);
if ( (rc == IB_OK) && (*hash != NULL) ) {
ib_log_debug2_tx(tx, "Found rule data hash in tx.");
return IB_OK;
}
ib_log_debug2_tx(tx, "Rule data hash did not exist in tx.");
rc = ib_hash_create(hash, tx->mp);
if (rc != IB_OK) {
ib_log_debug2_tx(tx, "Failed to create hash: %s",
ib_status_to_string(rc));
return rc;
}
rc = ib_tx_set_module_data(tx, m, *hash);
if (rc != IB_OK) {
ib_log_debug2_tx(tx, "Failed to store hash: %s",
ib_status_to_string(rc));
*hash = NULL;
}
ib_log_debug2_tx(tx, "Returning rule hash at %p.", *hash);
return rc;
}