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block: allow interrupting a co_sleep_ns 

In the next patch we want to reenter the coroutine from
block_job_cancel_sync and cancel the timer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-04-18 15:12:01 +02:00 committed by Kevin Wolf
parent 2795ecf681
commit 3ed9902528
1 changed files with 2 additions and 1 deletions
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3
qemu-coroutine-sleep.c
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@ -23,7 +23,6 @@ static void co_sleep_cb(void *opaque)
{ {
CoSleepCB *sleep_cb = opaque; CoSleepCB *sleep_cb = opaque;
qemu_free_timer(sleep_cb->ts);
qemu_coroutine_enter(sleep_cb->co, NULL); qemu_coroutine_enter(sleep_cb->co, NULL);
} }
@ -35,4 +34,6 @@ void coroutine_fn co_sleep_ns(QEMUClock *clock, int64_t ns)
sleep_cb.ts = qemu_new_timer(clock, SCALE_NS, co_sleep_cb, &sleep_cb); sleep_cb.ts = qemu_new_timer(clock, SCALE_NS, co_sleep_cb, &sleep_cb);
qemu_mod_timer(sleep_cb.ts, qemu_get_clock_ns(clock) + ns); qemu_mod_timer(sleep_cb.ts, qemu_get_clock_ns(clock) + ns);
qemu_coroutine_yield(); qemu_coroutine_yield();
qemu_del_timer(sleep_cb.ts);
qemu_free_timer(sleep_cb.ts);
} }