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MXS-1848 Destroy all monitors at system shutdown

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This commit is contained in:
Johan Wikman
2018-05-07 14:03:33 +03:00
parent 44fa2a4be2
commit bf2a97812d
3 changed files with 33 additions and 13 deletions
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30
server/core/monitor.cc
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@ -169,8 +169,6 @@ monitor_destroy(MXS_MONITOR *mon)
{
MXS_MONITOR *ptr;
mon->api->stopMonitor(mon->instance);
mon->state = MONITOR_STATE_FREED;
spinlock_acquire(&monLock);
if (allMonitors == mon)
{
@ -189,6 +187,8 @@ monitor_destroy(MXS_MONITOR *mon)
}
}
spinlock_release(&monLock);
mon->api->destroyInstance(mon->instance);
mon->state = MONITOR_STATE_FREED;
config_parameter_free(mon->parameters);
monitor_server_free_all(mon->monitored_servers);
MXS_FREE(mon->name);
@ -196,6 +196,18 @@ monitor_destroy(MXS_MONITOR *mon)
MXS_FREE(mon);
}
void monitor_destroy_all()
{
// monitor_destroy() grabs 'monLock', so it cannot be grabbed here
// without additional changes. But this function should only be
// called at system shutdown in single-thread context.
while (allMonitors)
{
MXS_MONITOR *monitor = allMonitors;
monitor_destroy(monitor);
}
}
/**
* Start an individual monitor that has previously been stopped.
@ -294,18 +306,18 @@ void monitor_deactivate(MXS_MONITOR* monitor)
void
monitor_stop_all()
{
MXS_MONITOR *ptr;
spinlock_acquire(&monLock);
ptr = allMonitors;
while (ptr)
MXS_MONITOR* monitor = allMonitors;
while (monitor)
{
if (ptr->active)
if (monitor->active)
{
monitor_stop(ptr);
monitor_stop(monitor);
}
ptr = ptr->next;
monitor = monitor->next;
}
spinlock_release(&monLock);
}