/************************************************************************
Frees the global purge system control structure. */
UNIV_INTERN
void
trx_purge_sys_close(void)
/*======================*/
{
ut_ad(!mutex_own(&kernel_mutex));
que_graph_free(purge_sys->query);
ut_a(purge_sys->sess->trx->is_purge);
purge_sys->sess->trx->conc_state = TRX_NOT_STARTED;
sess_close(purge_sys->sess);
purge_sys->sess = NULL;
if (purge_sys->view != NULL) {
/* Because acquiring the kernel mutex is a pre-condition
of read_view_close(). We don't really need it here. */
mutex_enter(&kernel_mutex);
read_view_close(purge_sys->view);
purge_sys->view = NULL;
mutex_exit(&kernel_mutex);
}
trx_undo_arr_free(purge_sys->arr);
rw_lock_free(&purge_sys->latch);
mutex_free(&purge_sys->mutex);
mem_heap_free(purge_sys->heap);
mem_free(purge_sys);
purge_sys = NULL;
}
/********************************************************************//**
Frees a transaction object. */
UNIV_INTERN
void
trx_free(
/*=====*/
trx_t* trx) /*!< in, own: trx object */
{
ut_ad(mutex_own(&kernel_mutex));
if (trx->declared_to_be_inside_innodb) {
ut_print_timestamp(stderr);
fputs(" InnoDB: Error: Freeing a trx which is declared"
" to be processing\n"
"InnoDB: inside InnoDB.\n", stderr);
trx_print(stderr, trx, 600);
putc('\n', stderr);
/* This is an error but not a fatal error. We must keep
the counters like srv_conc_n_threads accurate. */
srv_conc_force_exit_innodb(trx);
}
if (trx->n_mysql_tables_in_use != 0
|| trx->mysql_n_tables_locked != 0) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Error: MySQL is freeing a thd\n"
"InnoDB: though trx->n_mysql_tables_in_use is %lu\n"
"InnoDB: and trx->mysql_n_tables_locked is %lu.\n",
(ulong)trx->n_mysql_tables_in_use,
(ulong)trx->mysql_n_tables_locked);
trx_print(stderr, trx, 600);
ut_print_buf(stderr, trx, sizeof(trx_t));
putc('\n', stderr);
}
ut_a(trx->magic_n == TRX_MAGIC_N);
trx->magic_n = 11112222;
ut_a(trx->conc_state == TRX_NOT_STARTED);
mutex_free(&(trx->undo_mutex));
ut_a(trx->insert_undo == NULL);
ut_a(trx->update_undo == NULL);
if (trx->undo_no_arr) {
trx_undo_arr_free(trx->undo_no_arr);
}
ut_a(UT_LIST_GET_LEN(trx->signals) == 0);
ut_a(UT_LIST_GET_LEN(trx->reply_signals) == 0);
ut_a(trx->wait_lock == NULL);
ut_a(UT_LIST_GET_LEN(trx->wait_thrs) == 0);
ut_a(!trx->has_search_latch);
ut_a(trx->dict_operation_lock_mode == 0);
if (trx->lock_heap) {
mem_heap_free(trx->lock_heap);
}
ut_a(UT_LIST_GET_LEN(trx->trx_locks) == 0);
if (trx->global_read_view_heap) {
mem_heap_free(trx->global_read_view_heap);
}
trx->global_read_view = NULL;
ut_a(trx->read_view == NULL);
ut_a(ib_vector_is_empty(trx->autoinc_locks));
/* We allocated a dedicated heap for the vector. */
ib_vector_free(trx->autoinc_locks);
mem_free(trx);
}
void
trx_free(
/*=====*/
trx_t* trx) /* in, own: trx object */
{
ut_ad(mutex_own(&kernel_mutex));
if (trx->declared_to_be_inside_innodb) {
ut_print_timestamp(stderr);
fputs(" InnoDB: Error: Freeing a trx which is declared"
" to be processing\n"
"InnoDB: inside InnoDB.\n", stderr);
trx_print(stderr, trx, 600);
putc('\n', stderr);
}
if (trx->n_mysql_tables_in_use != 0
|| trx->mysql_n_tables_locked != 0) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Error: MySQL is freeing a thd\n"
"InnoDB: though trx->n_mysql_tables_in_use is %lu\n"
"InnoDB: and trx->mysql_n_tables_locked is %lu.\n",
(ulong)trx->n_mysql_tables_in_use,
(ulong)trx->mysql_n_tables_locked);
trx_print(stderr, trx, 600);
ut_print_buf(stderr, trx, sizeof(trx_t));
}
ut_a(trx->magic_n == TRX_MAGIC_N);
trx->magic_n = 11112222;
ut_a(trx->conc_state == TRX_NOT_STARTED);
mutex_free(&(trx->undo_mutex));
ut_a(trx->insert_undo == NULL);
ut_a(trx->update_undo == NULL);
if (trx->undo_no_arr) {
trx_undo_arr_free(trx->undo_no_arr);
}
ut_a(UT_LIST_GET_LEN(trx->signals) == 0);
ut_a(UT_LIST_GET_LEN(trx->reply_signals) == 0);
ut_a(trx->wait_lock == NULL);
ut_a(UT_LIST_GET_LEN(trx->wait_thrs) == 0);
ut_a(!trx->has_search_latch);
ut_a(!trx->auto_inc_lock);
ut_a(trx->dict_operation_lock_mode == 0);
if (trx->lock_heap) {
mem_heap_free(trx->lock_heap);
}
ut_a(UT_LIST_GET_LEN(trx->trx_locks) == 0);
if (trx->global_read_view_heap) {
mem_heap_free(trx->global_read_view_heap);
}
trx->global_read_view = NULL;
ut_a(trx->read_view == NULL);
mem_free(trx);
}
