clear the timer cache on entering event loop; reported by Victor Chang

svn:r944

ChangeLog

@@ -125,6 +125,7 @@ Changes in current version:
  o Match the query in DNS replies to the query in the request; from Vsevolod Stakhov.
  o Add new utility functions to correctly observe and log winsock errors.
  o Do not remove Accept-Encoding header
+ o Clear the timer cache on entering the event loop; reported by Victor Chang
 	
 Changes in 1.4.0:
  o allow \r or \n individually to separate HTTP headers instead of the standard "\r\n"; from Charles Kerr.

event.c

@@ -695,6 +695,9 @@ event_base_loop(struct event_base *base, int flags)
 	struct timeval *tv_p;
 	int res, done;
 
+	/* clear time cache */
+	base->tv_cache.tv_sec = 0;
+
 	if (&base->sig.ev_signal_added)
 		evsignal_base = base;
 	done = 0;