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libxl: queue domain event earlier in shutdown handler

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The shutdown handler may restart a domain when handling a reboot
event or when <on_*> is set to 'restart'.  Restarting consists of
calling libxlVmCleanup followed by libxlVmStart.  libxlVmStart will
emit a VIR_DOMAIN_EVENT_STARTED event, but the SHUTDOWN event is
not emitted until exiting the shutdown handler, after the STARTED
event.

This patch changes the logic a bit to queue the event at the start
of the shutdown action, ensuring it is queued before any subsequent
events that may be generated while executing the shutdown action.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
This commit is contained in:
Jim Fehlig 2014-02-19 15:39:19 -07:00
parent 2122cf3979
commit 4d975deddd
1 changed files with 8 additions and 0 deletions
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8
src/libxl/libxl_driver.c
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@ -473,6 +473,10 @@ libxlDomainShutdownThread(void *opaque)
}
destroy:
if (dom_event) {
libxlDomainEventQueue(driver, dom_event);
dom_event = NULL;
}
libxl_domain_destroy(ctx, vm->def->id, NULL);
if (libxlVmCleanupJob(driver, vm, reason)) {
if (!vm->persistent) {
@ -483,6 +487,10 @@ destroy:
goto cleanup;
restart:
if (dom_event) {
libxlDomainEventQueue(driver, dom_event);
dom_event = NULL;
}
libxl_domain_destroy(ctx, vm->def->id, NULL);
libxlVmCleanupJob(driver, vm, VIR_DOMAIN_SHUTOFF_SHUTDOWN);
libxlVmStart(driver, vm, 0, -1);