xorg-x11-server/N-VNC-Readd-timeout-when-vnc-viewer-connection-breaks.patch

From: Egbert Eich <eich@freedesktop.org>
Date: Tue, 6 Sep 2011 07:02:11 +0200
Subject: [PATCH 2/6] VNC: Readd timeout when vnc viewer connection breaks.
Patch-Mainline: Currently no upstream project.
Git-commit: 759b49ed1c4ea03e45433c92c2fb8c44a60db34a
Signed-off: Egbert Eich <eich@suse.de> 
References: bnc #441935, bnc #403901

This prevents Xvnc busy loop forever waiting for a viewer that no longer
response due to network or other issues.

Signed-off-by: Egbert Eich <eich@freedesktop.org>
---
 hw/vnc/sockets.c |   19 +++++--------------
 1 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/hw/vnc/sockets.c b/hw/vnc/sockets.c
index 39eb88a..ae43ed0 100644
--- a/hw/vnc/sockets.c
+++ b/hw/vnc/sockets.c
@@ -442,9 +442,7 @@ WriteExact(int sock, char *buf, int len)
     int n;
     fd_set fds;
     struct timeval tv;
-#if 0
     int totalTimeWaited = 0;
-#endif
 
     while (len > 0) {
 	n = write(sock, buf, len);
@@ -464,7 +462,6 @@ WriteExact(int sock, char *buf, int len)
 		return n;
 	    }
 
-#if 0
 	    /* Retry every 5 seconds until we exceed rfbMaxClientWait.  We
 	       need to do this because select doesn't necessarily return
 	       immediately when the other end has gone away */
@@ -473,19 +470,14 @@ WriteExact(int sock, char *buf, int len)
 	    FD_SET(sock, &fds);
 	    tv.tv_sec = 5;
 	    tv.tv_usec = 0;
-#else
-	    /* We're in the WakeupHandler now, so don't wait */
 
-	    FD_ZERO(&fds);
-	    FD_SET(sock, &fds);
-	    tv.tv_sec = 0;
-	    tv.tv_usec = 0;
-#endif
 	    n = select(sock+1, NULL, &fds, NULL, &tv);
-#if 0
+
 	    if (n < 0) {
-		rfbLogPerror("WriteExact: select");
-		return n;
+		if (errno != EINTR) {
+		    rfbLogPerror("WriteExact: select");
+		    return n;
+		}
 	    }
 	    if (n == 0) {
 		totalTimeWaited += 5000;
@@ -496,7 +488,6 @@ WriteExact(int sock, char *buf, int len)
 	    } else {
 		totalTimeWaited = 0;
 	    }
-#endif
 	}
     }
     return 1;
-- 
1.7.3.4