Two related changes to timing code:

[PuTTY.git] / windows / winplink.c

diff --git a/windows/winplink.c b/windows/winplink.c
index 58063352745dbaf7a3e98d779c6ce6f79fa5bc14..7ec98e7fd5bf9e75572d081c7fdada8946d1201a 100644 (file)
--- a/windows/winplink.c
+++ b/windows/winplink.c
@@ -289,7 +289,7 @@ int main(int argc, char **argv)
     int errors;
     int got_host = FALSE;
     int use_subsystem = 0;
-    long now, next;
+    unsigned long now, next, then;
 
     sklist = NULL;
     skcount = sksize = 0;
@@ -634,8 +634,12 @@ int main(int argc, char **argv)
        }
 
        if (run_timers(now, &next)) {
-           ticks = next - GETTICKCOUNT();
-           if (ticks < 0) ticks = 0;  /* just in case */
+       then = now;
+       now = GETTICKCOUNT();
+       if (now - then > next - then)
+           ticks = 0;
+       else
+           ticks = next - now;
        } else {
            ticks = INFINITE;
        }