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srv0srv.c:

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Protect InnoDB monitor with a mutex


innobase/srv/srv0srv.c:
  Protect InnoDB monitor with a mutex
This commit is contained in:
unknown 2002-07-09 18:13:59 +03:00
parent a0a0af76fa
commit b0b67eff59
1 changed files with 8 additions and 0 deletions
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8
innobase/srv/srv0srv.c
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@ -274,6 +274,8 @@ char* srv_io_thread_op_info[SRV_MAX_N_IO_THREADS];
time_t srv_last_monitor_time; time_t srv_last_monitor_time;
mutex_t srv_innodb_monitor_mutex;
/* /*
IMPLEMENTATION OF THE SERVER MAIN PROGRAM IMPLEMENTATION OF THE SERVER MAIN PROGRAM
========================================= =========================================
@ -1618,6 +1620,9 @@ srv_init(void)
kernel_mutex_temp = mem_alloc(sizeof(mutex_t)); kernel_mutex_temp = mem_alloc(sizeof(mutex_t));
mutex_create(&kernel_mutex); mutex_create(&kernel_mutex);
mutex_set_level(&kernel_mutex, SYNC_KERNEL); mutex_set_level(&kernel_mutex, SYNC_KERNEL);
mutex_create(&srv_innodb_monitor_mutex);
mutex_set_level(&srv_innodb_monitor_mutex, SYNC_NO_ORDER_CHECK);
srv_sys->threads = mem_alloc(OS_THREAD_MAX_N * sizeof(srv_slot_t)); srv_sys->threads = mem_alloc(OS_THREAD_MAX_N * sizeof(srv_slot_t));
@ -2146,6 +2151,8 @@ srv_sprintf_innodb_monitor(
double time_elapsed; double time_elapsed;
time_t current_time; time_t current_time;
mutex_enter(&srv_innodb_monitor_mutex);
current_time = time(NULL); current_time = time(NULL);
/* We add 0.001 seconds to time_elapsed to prevent division /* We add 0.001 seconds to time_elapsed to prevent division
@ -2256,6 +2263,7 @@ srv_sprintf_innodb_monitor(
buf += sprintf(buf, "----------------------------\n" buf += sprintf(buf, "----------------------------\n"
"END OF INNODB MONITOR OUTPUT\n" "END OF INNODB MONITOR OUTPUT\n"
"============================\n"); "============================\n");
mutex_exit(&srv_innodb_monitor_mutex);
} }
/************************************************************************* /*************************************************************************