From dfe85dfd86119bfeed3e3b9e0b56f0e01e796de4 Mon Sep 17 00:00:00 2001
From: root <root>
Date: Mon, 9 Jun 2008 14:11:30 +0000
Subject: *** empty log message ***

---
 ev_select.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

(limited to 'ev_select.c')

diff --git a/ev_select.c b/ev_select.c
index 1303a56..93d84cf 100644
--- a/ev_select.c
+++ b/ev_select.c
@@ -79,15 +79,24 @@ select_modify (EV_P_ int fd, int oev, int nev)
     int handle = fd;
     #endif
 
-    if (nev & EV_READ)
-      FD_SET (handle, (fd_set *)vec_ri);
-    else
-      FD_CLR (handle, (fd_set *)vec_ri);
-
-    if (nev & EV_WRITE)
-      FD_SET (handle, (fd_set *)vec_wi);
-    else
-      FD_CLR (handle, (fd_set *)vec_wi);
+    /* FD_SET is broken on windows (it adds the fd to a set twice or more,
+     * which eventually leads to overflows). Need to call it only on changes.
+     */
+    #if EV_SELECT_IS_WINSOCKET
+    if ((oev ^ nev) & EV_READ)
+    #endif
+      if (nev & EV_READ)
+        FD_SET (handle, (fd_set *)vec_ri);
+      else
+        FD_CLR (handle, (fd_set *)vec_ri);
+
+    #if EV_SELECT_IS_WINSOCKET
+    if ((oev ^ nev) & EV_WRITE)
+    #endif
+      if (nev & EV_WRITE)
+        FD_SET (handle, (fd_set *)vec_wi);
+      else
+        FD_CLR (handle, (fd_set *)vec_wi);
 
 #else
 
-- 
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