diff options
Diffstat (limited to 'sql/sql_manager.cc')
| -rw-r--r-- | sql/sql_manager.cc | 54 |
1 files changed, 41 insertions, 13 deletions
diff --git a/sql/sql_manager.cc b/sql/sql_manager.cc index 171ab55145a..b082f65bfb9 100644 --- a/sql/sql_manager.cc +++ b/sql/sql_manager.cc @@ -23,8 +23,9 @@ #include "mysql_priv.h" -ulong volatile manager_status; -bool volatile manager_thread_in_use; + +static bool volatile manager_thread_in_use; +static bool abort_manager; pthread_t manager_thread; pthread_mutex_t LOCK_manager; @@ -63,7 +64,6 @@ bool mysql_manager_submit(void (*action)()) pthread_handler_t handle_manager(void *arg __attribute__((unused))) { int error = 0; - ulong status; struct timespec abstime; bool reset_flush_time = TRUE; struct handler_cb *cb= NULL; @@ -72,7 +72,6 @@ pthread_handler_t handle_manager(void *arg __attribute__((unused))) pthread_detach_this_thread(); manager_thread = pthread_self(); - manager_status = 0; manager_thread_in_use = 1; for (;;) @@ -87,16 +86,14 @@ pthread_handler_t handle_manager(void *arg __attribute__((unused))) set_timespec(abstime, flush_time); reset_flush_time = FALSE; } - while (!manager_status && (!error || error == EINTR) && !abort_loop) + while ((!error || error == EINTR) && !abort_manager) error= pthread_cond_timedwait(&COND_manager, &LOCK_manager, &abstime); } else { - while (!manager_status && (!error || error == EINTR) && !abort_loop) + while ((!error || error == EINTR) && !abort_manager) error= pthread_cond_wait(&COND_manager, &LOCK_manager); } - status = manager_status; - manager_status = 0; if (cb == NULL) { cb= cb_list; @@ -104,7 +101,7 @@ pthread_handler_t handle_manager(void *arg __attribute__((unused))) } pthread_mutex_unlock(&LOCK_manager); - if (abort_loop) + if (abort_manager) break; if (error == ETIMEDOUT || error == ETIME) @@ -121,11 +118,42 @@ pthread_handler_t handle_manager(void *arg __attribute__((unused))) my_free((uchar*)cb, MYF(0)); cb= next; } - - if (status) - DBUG_PRINT("error", ("manager did not handle something: %lx", status)); } manager_thread_in_use = 0; + DBUG_LEAVE; // Can't use DBUG_RETURN after my_thread_end my_thread_end(); - DBUG_RETURN(NULL); + return (NULL); } + + +/* Start handle manager thread */ +void start_handle_manager() +{ + DBUG_ENTER("start_handle_manager"); + abort_manager = false; + if (flush_time && flush_time != ~(ulong) 0L) + { + pthread_t hThread; + if (pthread_create(&hThread,&connection_attrib,handle_manager,0)) + sql_print_warning("Can't create handle_manager thread"); + } + DBUG_VOID_RETURN; +} + + +/* Initiate shutdown of handle manager thread */ +void stop_handle_manager() +{ + DBUG_ENTER("stop_handle_manager"); + abort_manager = true; + pthread_mutex_lock(&LOCK_manager); + if (manager_thread_in_use) + { + DBUG_PRINT("quit", ("initiate shutdown of handle manager thread: 0x%lx", + (ulong)manager_thread)); + pthread_cond_signal(&COND_manager); + } + pthread_mutex_unlock(&LOCK_manager); + DBUG_VOID_RETURN; +} + |