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6fe99e2dda
Remove most references to thread id in InnoDB. Three references remain: the current holder of a mutex, and the current x-lock holder of a rw-lock, and some references in UNIV_SYNC_DEBUG checks. This allows MySQL to change the thread associated to a client connection. Tighten the UNIV_SYNC_DEBUG checks, trying to ensure that no InnoDB mutex or x-lock is being held when returning control to MySQL. The only semaphore that may be held is the btr_search_latch in shared mode. sync_thread_levels_empty_except_dict(): A wrapper for sync_thread_levels_empty_gen(TRUE). sync_thread_levels_nonempty_trx(): Check that the current thread is not holding any InnoDB semaphores, except btr_search_latch if trx->has_search_latch. sync_thread_levels_empty(): Unused function; remove. trx_t: Remove mysql_thread_id and mysql_process_no. srv_slot_t: Remove id and handle. row_search_for_mysql(), srv_conc_enter_innodb(), srv_conc_force_enter_innodb(), srv_conc_force_exit_innodb(), srv_conc_exit_innodb(), srv_suspend_mysql_thread: Assert !sync_thread_levels_nonempty_trx(). rb:634 approved by Sunny Bains |
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| buf0buddy.c | ||
| buf0buf.c | ||
| buf0flu.c | ||
| buf0lru.c | ||
| buf0rea.c | ||