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9be35934d7
trx_t: Change the type of error_info from void* to const dict_index_t*. trx_get_error_info(): Add const qualifier to trx_t*. Make this an inline function.
110 lines
2.6 KiB
Text
110 lines
2.6 KiB
Text
/******************************************************
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The transaction
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(c) 1996 Innobase Oy
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Created 3/26/1996 Heikki Tuuri
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*******************************************************/
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/*****************************************************************
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Starts the transaction if it is not yet started. */
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UNIV_INLINE
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void
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trx_start_if_not_started(
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/*=====================*/
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trx_t* trx) /* in: transaction */
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{
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ut_ad(trx->conc_state != TRX_COMMITTED_IN_MEMORY);
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if (trx->conc_state == TRX_NOT_STARTED) {
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trx_start(trx, ULINT_UNDEFINED);
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}
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}
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/*****************************************************************
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Starts the transaction if it is not yet started. Assumes we have reserved
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the kernel mutex! */
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UNIV_INLINE
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void
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trx_start_if_not_started_low(
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/*=========================*/
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trx_t* trx) /* in: transaction */
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{
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ut_ad(trx->conc_state != TRX_COMMITTED_IN_MEMORY);
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if (trx->conc_state == TRX_NOT_STARTED) {
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trx_start_low(trx, ULINT_UNDEFINED);
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}
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}
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/*****************************************************************
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Resets the new record lock info in a transaction struct. */
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UNIV_INLINE
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void
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trx_reset_new_rec_lock_info(
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/*========================*/
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trx_t* trx) /* in: transaction struct */
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{
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trx->new_rec_locks[0] = NULL;
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trx->new_rec_locks[1] = NULL;
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}
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/*****************************************************************
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Registers that we have set a new record lock on an index. We only have space
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to store 2 indexes! If this is called to store more than 2 indexes after
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trx_reset_new_rec_lock_info(), then this function does nothing. */
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UNIV_INLINE
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void
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trx_register_new_rec_lock(
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/*======================*/
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trx_t* trx, /* in: transaction struct */
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dict_index_t* index) /* in: trx sets a new record lock on this
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index */
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{
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if (trx->new_rec_locks[0] == NULL) {
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trx->new_rec_locks[0] = index;
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return;
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}
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if (trx->new_rec_locks[0] == index) {
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return;
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}
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if (trx->new_rec_locks[1] != NULL) {
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return;
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}
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trx->new_rec_locks[1] = index;
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}
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/*****************************************************************
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Checks if trx has set a new record lock on an index. */
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UNIV_INLINE
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ibool
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trx_new_rec_locks_contain(
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/*======================*/
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/* out: TRUE if trx has set a new record lock
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on index */
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trx_t* trx, /* in: transaction struct */
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dict_index_t* index) /* in: index */
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{
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return(trx->new_rec_locks[0] == index
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|| trx->new_rec_locks[1] == index);
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}
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/********************************************************************
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Retrieves the error_info field from a trx. */
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UNIV_INLINE
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const dict_index_t*
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trx_get_error_info(
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/*===============*/
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/* out: the error info */
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const trx_t* trx) /* in: trx object */
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{
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return(trx->error_info);
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}
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