make timers best-effort non-drifting

[software/libev.git] / ev_poll.c

diff --git a/ev_poll.c b/ev_poll.c
index 1ce41c668fa83379efc86c2bebf842bcb7ba42b3..d0b72998377047e500e836c05008b9785b18353c 100644 (file)
--- a/ev_poll.c
+++ b/ev_poll.c
@@ -46,26 +46,29 @@ poll_modify (EV_P_ int fd, int oev, int nev)
   if (oev == nev)
     return;
 
-  array_needsize (pollidxs, pollidxmax, fd + 1, pollidx_init);
+  array_needsize (int, pollidxs, pollidxmax, fd + 1, pollidx_init);
 
   idx = pollidxs [fd];
 
   if (idx < 0) /* need to allocate a new pollfd */
     {
-      idx = pollcnt++;
-      array_needsize (polls, pollmax, pollcnt, );
+      pollidxs [fd] = idx = pollcnt++;
+      array_needsize (struct pollfd, polls, pollmax, pollcnt, );
       polls [idx].fd = fd;
     }
 
+  assert (polls [idx].fd == fd);
+
   if (nev)
     polls [idx].events =
         (nev & EV_READ ? POLLIN : 0)
         | (nev & EV_WRITE ? POLLOUT : 0);
   else /* remove pollfd */
     {
-      if (idx < pollcnt--)
+      pollidxs [fd] = -1;
+
+      if (idx < --pollcnt)
         {
-          pollidxs [fd] = -1;
           polls [idx] = polls [pollcnt];
           pollidxs [polls [idx].fd] = idx;
         }
@@ -76,7 +79,7 @@ static void
 poll_poll (EV_P_ ev_tstamp timeout)
 {
   int i;
-  int res = poll (polls, pollcnt, ceil (timeout * 1000.));
+  int res = poll (polls, pollcnt, (int)ceil (timeout * 1000.));
 
   if (res < 0)
     {
@@ -118,3 +121,4 @@ poll_destroy (EV_P)
   ev_free (pollidxs);
   ev_free (polls);
 }
+