On 03/07/13 5:41 AM, Laszlo Ersek wrote:
On 07/03/13 10:58, Izumi Tsutsui wrote:
Fix following bugs in "fallback implementation of counting semaphores
with mutex+condvar" added in c166cb72f1676855816340666c3b618beef4b976:
- waiting threads are not restarted properly if more than one threads
are waiting unblock signals in qemu_sem_timedwait()
- possible missing pthread_cond_signal(3) calls when waiting threads
are returned by ETIMEDOUT
- fix an uninitialized variable
The problem is analyzed by and fix is provided by Noriyuki Soda.
Also put additional cleanup suggested by Laszlo Ersek:
- make QemuSemaphore.count unsigned (it won't be negative)
- check a return value of in pthread_cond_wait() in qemu_sem_wait()
Signed-off-by: Izumi Tsutsui <address@hidden>
Reviewed-by: Laszlo Ersek <address@hidden>
---
v3:
- fix a missed assignment and actually check a retval of
pthread_cond_wait()
Compared v3 against v2.
Reviewed-by: Laszlo Ersek <address@hidden>
Laszlo
This patch seems to have been dropped.