diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org> | 2022-04-07 16:27:23 +0300 |
|---|---|---|
| committer | Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> | 2022-06-29 10:56:12 +0300 |
| commit | e1878eb5f0d93a67deb46aaeea898cf4824a759a (patch) | |
| tree | 6601b84c8a70c4cad699e0d65f9c4f318a5021c8 /include | |
| parent | dd3e97dfbe199fa277869d127884071100a426e5 (diff) | |
| download | qemu-e1878eb5f0d93a67deb46aaeea898cf4824a759a.zip qemu-e1878eb5f0d93a67deb46aaeea898cf4824a759a.tar.gz qemu-e1878eb5f0d93a67deb46aaeea898cf4824a759a.tar.bz2 | |
util: add qemu-co-timeout
Add new API, to make a time limited call of the coroutine.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qemu/coroutine.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/qemu/coroutine.h b/include/qemu/coroutine.h index d1548d5..08c5bb3 100644 --- a/include/qemu/coroutine.h +++ b/include/qemu/coroutine.h @@ -331,6 +331,19 @@ static inline void coroutine_fn qemu_co_sleep_ns(QEMUClockType type, int64_t ns) qemu_co_sleep_ns_wakeable(&w, type, ns); } +typedef void CleanupFunc(void *opaque); +/** + * Run entry in a coroutine and start timer. Wait for entry to finish or for + * timer to elapse, what happen first. If entry finished, return 0, if timer + * elapsed earlier, return -ETIMEDOUT. + * + * Be careful, entry execution is not canceled, user should handle it somehow. + * If @clean is provided, it's called after coroutine finish if timeout + * happened. + */ +int coroutine_fn qemu_co_timeout(CoroutineEntry *entry, void *opaque, + uint64_t timeout_ns, CleanupFunc clean); + /** * Wake a coroutine if it is sleeping in qemu_co_sleep_ns. The timer will be * deleted. @sleep_state must be the variable whose address was given to |