diff options
| author | MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> | 2013-10-24 16:01:14 +0900 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2013-10-30 12:22:09 +0100 |
| commit | 3ab7bd1917d210eac5d2a80593899ec70c4e998c (patch) | |
| tree | 6a8ddb6583053b1e583cb32f63de004a3395b683 /include | |
| parent | 72e0996c41d879473bb2aa85c8eeec129ae8ec9b (diff) | |
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 <morita.kazutaka@lab.ntt.co.jp>
Tested-by: Liu Yuan <namei.unix@gmail.com>
Reviewed-by: Liu Yuan <namei.unix@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/coroutine.h | 9 |
1 files changed, 9 insertions, 0 deletions
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 @@ -216,6 +216,15 @@ 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 * * Note that this function clobbers the handlers for the file descriptor. |