From aaf10d9d2e14ceed03b75f24494fb3e8c4d15d57 Mon Sep 17 00:00:00 2001 From: Ed Swierk Date: Thu, 23 Jul 2009 14:13:34 -0700 Subject: 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 Signed-off-by: Anthony Liguori --- slirp/slirp.c | 27 ++------------------------- 1 file changed, 2 insertions(+), 25 deletions(-) (limited to 'slirp/slirp.c') diff --git a/slirp/slirp.c b/slirp/slirp.c index 9be8553130..e883f8263d 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) { /* -- cgit v1.2.1