From 3ab7bd1917d210eac5d2a80593899ec70c4e998c Mon Sep 17 00:00:00 2001 From: MORITA Kazutaka Date: Thu, 24 Oct 2013 16:01:14 +0900 Subject: coroutine: add co_aio_sleep_ns() to allow sleep in block drivers This helper function behaves similarly to co_sleep_ns(), but the sleeping coroutine will be resumed when using qemu_aio_wait(). Signed-off-by: MORITA Kazutaka Tested-by: Liu Yuan Reviewed-by: Liu Yuan Signed-off-by: Kevin Wolf --- include/block/coroutine.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/block') diff --git a/include/block/coroutine.h b/include/block/coroutine.h index 4232569c53..4d5c0cfdd7 100644 --- a/include/block/coroutine.h +++ b/include/block/coroutine.h @@ -215,6 +215,15 @@ void qemu_co_rwlock_unlock(CoRwlock *lock); */ void coroutine_fn co_sleep_ns(QEMUClockType type, int64_t ns); +/** + * Yield the coroutine for a given duration + * + * Behaves similarly to co_sleep_ns(), but the sleeping coroutine will be + * resumed when using qemu_aio_wait(). + */ +void coroutine_fn co_aio_sleep_ns(AioContext *ctx, QEMUClockType type, + int64_t ns); + /** * Yield until a file descriptor becomes readable * -- cgit v1.2.1