Fix spurious VNC disconnects on Win32 (Hervé Poussineau).

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4251 c046a42c-6fe2-441c-8c8c-71466251a162

vnc.c

@@ -633,8 +633,18 @@ static void buffer_append(Buffer *buffer, const void *data, size_t len)
 static int vnc_client_io_error(VncState *vs, int ret, int last_errno)
 {
     if (ret == 0 || ret == -1) {
-	if (ret == -1 && (last_errno == EINTR || last_errno == EAGAIN))
-	    return 0;
+        if (ret == -1) {
+            switch (last_errno) {
+                case EINTR:
+                case EAGAIN:
+#ifdef _WIN32
+                case WSAEWOULDBLOCK:
+#endif
+                    return 0;
+                default:
+                    break;
+            }
+        }
 
 	VNC_DEBUG("Closing down client sock %d %d\n", ret, ret < 0 ? last_errno : 0);
 	qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
@@ -2086,10 +2096,10 @@ int vnc_display_open(DisplayState *ds, const char *display)
     struct sockaddr_in iaddr;
 #ifndef _WIN32
     struct sockaddr_un uaddr;
+    const char *p;
 #endif
     int reuse_addr, ret;
     socklen_t addrlen;
-    const char *p;
     VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
     const char *options;
     int password = 0;