win32: implement missing timersub

Implement and wrap timersub() for Win32.

Acked-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2011-03-13 10:30:52 +00:00
parent 31d3c9b8c1
commit ad620c29c2
2 changed files with 20 additions and 5 deletions

19
osdep.h
View File

@ -8,9 +8,7 @@
#include <sys/signal.h>
#endif
#ifndef _WIN32
#include <sys/time.h>
#endif
#ifndef glue
#define xglue(x, y) x ## y
@ -131,4 +129,21 @@ int qemu_madvise(void *addr, size_t len, int advice);
int qemu_create_pidfile(const char *filename);
#ifdef _WIN32
static inline void qemu_timersub(const struct timeval *val1,
const struct timeval *val2,
struct timeval *res)
{
res->tv_sec = val1->tv_sec - val2->tv_sec;
if (val1->tv_usec < val2->tv_usec) {
res->tv_sec--;
res->tv_usec = val1->tv_usec - val2->tv_usec + 1000 * 1000;
} else {
res->tv_usec = val1->tv_usec - val2->tv_usec;
}
}
#else
#define qemu_timersub timersub
#endif
#endif

View File

@ -2302,7 +2302,7 @@ static int vnc_update_stats(VncDisplay *vd, struct timeval * tv)
}
}
timersub(tv, &VNC_REFRESH_STATS, &res);
qemu_timersub(tv, &VNC_REFRESH_STATS, &res);
if (timercmp(&vd->guest.last_freq_check, &res, >)) {
return has_dirty;
@ -2320,7 +2320,7 @@ static int vnc_update_stats(VncDisplay *vd, struct timeval * tv)
}
max = rect->times[(rect->idx + count - 1) % count];
timersub(tv, &max, &res);
qemu_timersub(tv, &max, &res);
if (timercmp(&res, &VNC_REFRESH_LOSSY, >)) {
rect->freq = 0;
@ -2331,7 +2331,7 @@ static int vnc_update_stats(VncDisplay *vd, struct timeval * tv)
min = rect->times[rect->idx];
max = rect->times[(rect->idx + count - 1) % count];
timersub(&max, &min, &res);
qemu_timersub(&max, &min, &res);
rect->freq = res.tv_sec + res.tv_usec / 1000000.;
rect->freq /= count;