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qemu-timer: make initialization functions idempotent

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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-10-29 15:26:28 +01:00
parent dbb5f3802e
commit 744ca8e375
1 changed files with 9 additions and 3 deletions
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12
qemu-timer.c
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@ -430,9 +430,11 @@ void qemu_unregister_clock_reset_notifier(QEMUClock *clock, Notifier *notifier)
void init_clocks(void)
{
rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
if (!rt_clock) {
rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
}
}
uint64_t qemu_timer_expire_time_ns(QEMUTimer *ts)
@ -745,6 +747,10 @@ int init_timer_alarm(void)
struct qemu_alarm_timer *t = NULL;
int i, err = -1;
if (alarm_timer) {
return 0;
}
for (i = 0; alarm_timers[i].name; i++) {
t = &alarm_timers[i];