1 files changed, 60 insertions, 0 deletions
diff --git a/nx-X11/lib/src/Sync.c b/nx-X11/lib/src/Sync.c
new file mode 100644
index 000000000..bc768d4f6
--- /dev/null
+++ b/nx-X11/lib/src/Sync.c
@@ -0,0 +1,60 @@
+/*
+
+Copyright 1986, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+
+/* Synchronize with errors and events, optionally discarding pending events */
+
+int
+XSync (
+    register Display *dpy,
+    Bool discard)
+{
+    xGetInputFocusReply rep;
+    _X_UNUSED register xReq *req;
+
+    LockDisplay(dpy);
+    GetEmptyReq(GetInputFocus, req);
+    (void) _XReply (dpy, (xReply *)&rep, 0, xTrue);
+
+    if (discard && dpy->head) {
+       _XQEvent *qelt;
+
+       for (qelt=dpy->head; qelt; qelt=qelt->next)
+	   qelt->qserial_num = 0;
+
+       ((_XQEvent *)dpy->tail)->next = dpy->qfree;
+       dpy->qfree = (_XQEvent *)dpy->head;
+       dpy->head = dpy->tail = NULL;
+       dpy->qlen = 0;
+    }
+    UnlockDisplay(dpy);
+    return 1;
+}
+