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[Qemu-devel] Re: Threads and win32
From: |
Marcelo Tosatti |
Subject: |
[Qemu-devel] Re: Threads and win32 |
Date: |
Mon, 20 Jul 2009 20:52:47 -0300 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Mon, Jul 20, 2009 at 09:09:47PM +0200, Sebastian Herbszt wrote:
> Marcelo Tosatti wrote:
>> On Sun, Jul 19, 2009 at 02:11:09PM +0200, Sebastian Herbszt wrote:
>>> Marcelo, can gettimeofday be used instead of clock_gettime?
>>>
>> Sure, gettimeofday instead of clock_gettime is fine.
>
> If clock_gettime() is replaced by gettimeofday() qemu-thread.c does compile
> on MinGW if
> also the pthread_equal patch [1] is applied. Unfortunatelly there is a ton of
> compile errors
> in vl.c due to incomplete signal support (?).
>
> [1] http://lists.gnu.org/archive/html/qemu-devel/2009-07/msg01514.html
>
> - Sebastian
>
> [PATCH] qemu-thread: replace clock_gettime() by gettimeofday()
>
> Replace clock_gettime() which is not available on MinGW by gettimeofday().
Sweet. Have you tested it?
Do the signal warnings make any sense??
>
> Signed-off-by: Sebastian Herbszt <address@hidden>
>
> --- qemu-c62bb/qemu-thread.c.orig Mon Jul 20 18:38:24 2009
> +++ qemu-c62bb/qemu-thread.c Mon Jul 20 18:53:53 2009
> @@ -14,6 +14,7 @@
> #include <stdio.h>
> #include <errno.h>
> #include <time.h>
> +#include <sys/time.h>
> #include <signal.h>
> #include <stdint.h>
> #include <string.h>
> @@ -62,8 +63,11 @@ int qemu_mutex_timedlock(QemuMutex *mute
> {
> int err;
> struct timespec ts;
> + struct timeval now;
>
> - clock_gettime(CLOCK_REALTIME, &ts);
> + gettimeofday(&now, NULL);
> + ts.tv_sec = now.tv_sec;
> + ts.tv_nsec = now.tv_usec * 1000;
> timespec_add_ms(&ts, msecs);
>
> err = pthread_mutex_timedlock(&mutex->lock, &ts);
> @@ -120,9 +124,12 @@ void qemu_cond_wait(QemuCond *cond, Qemu
> int qemu_cond_timedwait(QemuCond *cond, QemuMutex *mutex, uint64_t msecs)
> {
> struct timespec ts;
> + struct timeval now;
> int err;
>
> - clock_gettime(CLOCK_REALTIME, &ts);
> + gettimeofday(&now, NULL);
> + ts.tv_sec = now.tv_sec;
> + ts.tv_nsec = now.tv_usec * 1000;
> timespec_add_ms(&ts, msecs);
>
> err = pthread_cond_timedwait(&cond->cond, &mutex->lock, &ts);