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aio / timers: On timer modification, qemu_notify or aio_notify

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On qemu_mod_timer_ns, ensure qemu_notify or aio_notify is called to
end the appropriate poll(), irrespective of use_icount value.

On qemu_clock_enable, ensure qemu_notify or aio_notify is called for
all QEMUTimerLists attached to the QEMUClock.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Alex Bligh 2013-08-21 16:02:55 +01:00 committed by Stefan Hajnoczi
parent 7b595f35d8
commit b1bbfe72ec
2 changed files with 19 additions and 3 deletions
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9
include/qemu/timer.h
View File

@ -135,6 +135,15 @@ bool qemu_clock_use_for_deadline(QEMUClock *clock);
*/
QEMUTimerList *qemu_clock_get_main_loop_timerlist(QEMUClock *clock);
/**
* qemu_clock_nofify:
* @clock: the clock to operate on
*
* Call the notifier callback connected with the default timer
* list linked to the clock, or qemu_notify() if none.
*/
void qemu_clock_notify(QEMUClock *clock);
/**
* timerlist_new:
* @type: the clock type to associate with the timerlist

13
qemu-timer.c
View File

@ -304,11 +304,20 @@ bool qemu_clock_use_for_deadline(QEMUClock *clock)
return !(use_icount && (clock->type == QEMU_CLOCK_VIRTUAL));
}
void qemu_clock_notify(QEMUClock *clock)
{
QEMUTimerList *timer_list;
QLIST_FOREACH(timer_list, &clock->timerlists, list) {
timerlist_notify(timer_list);
}
}
void qemu_clock_enable(QEMUClock *clock, bool enabled)
{
bool old = clock->enabled;
clock->enabled = enabled;
if (enabled && !old) {
qemu_clock_notify(clock);
qemu_rearm_alarm_timer(alarm_timer);
}
}
@ -522,9 +531,7 @@ void qemu_mod_timer_ns(QEMUTimer *ts, int64_t expire_time)
}
/* Interrupt execution to force deadline recalculation. */
qemu_clock_warp(ts->timer_list->clock);
if (use_icount) {
timerlist_notify(ts->timer_list);
}
timerlist_notify(ts->timer_list);
}
}