On 2/22/22 10:05, Longpeng(Mike) via wrote:
> The qemu_sem_timedwait() uses system time as default, it would be affected by
> changes to the system time. In the real scenario, the time that goes faster or
> slower is a common case and the NTP service could help us to sync time
> periodically.
>
> This patchset uses monotonic clock instead of the realtime clock, this could
> make sure we would not be affected by the system time anymore.
>
> Changes v1(RFC) -> v2:
> Patch 2:
> - clean the code [Paolo]
> - use pthread_condattr_setclock when initializing qemu-cond. [Paolo]
> Patch 3:
> - new added, make the qemu-sem code neater. [Longpeng]
>
> Longpeng (Mike) (3):
> sem-posix: remove the posix semaphore support
> sem-posix: use monotonic clock instead
> sem-posix: refactor qemu-sem with qemu-cond and qemu-mutex
>
> include/qemu/thread-posix.h | 9 +--
> meson.build | 12 ++-
> util/qemu-thread-posix.c | 178 +++++++++++++++-----------------------------
> 3 files changed, 73 insertions(+), 126 deletions(-)
>
Queued, thanks! I also sent a small optimization patch on top.
Paolo