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| author |   Ed Swierk <eswierk@aristanetworks.com> | 2009-07-23 14:13:34 -0700 |
|---|---|---|
| committer |   Anthony Liguori <aliguori@us.ibm.com> | 2009-07-27 14:09:15 -0500 |
| commit | aaf10d9d2e14ceed03b75f24494fb3e8c4d15d57 (patch) | |
| tree | b976dccc720af95f34fec1b37f683c7efc4298e8 /slirp/slirp.c | |
| parent | slirp: Remove UDP protocol emulation (talk, cuseeme) (diff) | |
| download | qemu-kvm-aaf10d9d2e14ceed03b75f24494fb3e8c4d15d57.tar.gz qemu-kvm-aaf10d9d2e14ceed03b75f24494fb3e8c4d15d57.tar.bz2 qemu-kvm-aaf10d9d2e14ceed03b75f24494fb3e8c4d15d57.zip | |
slirp: Use monotonic clock if available (v2)
Calling gettimeofday() to compute a time interval can cause problems if
the system clock jumps forwards or backwards; replace updtime() with
qemu_get_clock(rt_clock), which calls clock_gettime(CLOCK_MONOTONIC) if
it is available.
Also remove some useless macros.
Signed-off-by: Ed Swierk <eswierk@aristanetworks.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'slirp/slirp.c')
| -rw-r--r-- | slirp/slirp.c | 27 |
1 files changed, 2 insertions, 25 deletions
diff --git a/slirp/slirp.c b/slirp/slirp.c index 9be855313..e883f8263 100644 --- a/slirp/slirp.c +++ b/slirp/slirp.c @@ -22,6 +22,7 @@ * THE SOFTWARE. */ #include "qemu-common.h" +#include "qemu-timer.h" #include "qemu-char.h" #include "slirp.h" #include "hw/hw.h" @@ -244,29 +245,6 @@ void slirp_cleanup(Slirp *slirp) #define CONN_CANFRCV(so) (((so)->so_state & (SS_FCANTRCVMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED) #define UPD_NFDS(x) if (nfds < (x)) nfds = (x) -/* - * curtime kept to an accuracy of 1ms - */ -#ifdef _WIN32 -static void updtime(void) -{ - struct _timeb tb; - - _ftime(&tb); - - curtime = tb.time * 1000 + tb.millitm; -} -#else -static void updtime(void) -{ - struct timeval tv; - - gettimeofday(&tv, NULL); - - curtime = tv.tv_sec * 1000 + tv.tv_usec / 1000; -} -#endif - void slirp_select_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds) { @@ -405,8 +383,7 @@ void slirp_select_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, global_writefds = writefds; global_xfds = xfds; - /* Update time */ - updtime(); + curtime = qemu_get_clock(rt_clock); TAILQ_FOREACH(slirp, &slirp_instances, entry) { /* |