1 files changed, 87 insertions, 0 deletions
diff --git a/nx-X11/lib/src/PutBEvent.c b/nx-X11/lib/src/PutBEvent.c
new file mode 100644
index 000000000..1768e032c
--- /dev/null
+++ b/nx-X11/lib/src/PutBEvent.c
@@ -0,0 +1,87 @@
+/*
+
+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.
+
+*/
+
+/* XPutBackEvent puts an event back at the head of the queue. */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+
+int
+_XPutBackEvent (
+    register Display *dpy,
+    register XEvent *event)
+	{
+	register _XQEvent *qelt;
+	XEvent store = *event;
+
+	if (!dpy->qfree) {
+	    if ((dpy->qfree = Xmalloc (sizeof (_XQEvent))) == NULL) {
+		return 0;
+	    }
+	    dpy->qfree->next = NULL;
+	}
+
+	/* unclaimed cookie? */
+	if (_XIsEventCookie(dpy, event))
+	{
+	    XEvent copy = {0};
+            /* if not claimed, then just fetch and store again */
+	    if (!event->xcookie.data) {
+		_XFetchEventCookie(dpy, &event->xcookie);
+		store = *event;
+	    } else { /* if claimed, copy, client must free */
+		_XCopyEventCookie(dpy, &event->xcookie, &copy.xcookie);
+		store = copy;
+	    }
+	}
+
+	qelt = dpy->qfree;
+	dpy->qfree = qelt->next;
+	qelt->qserial_num = dpy->next_event_serial_num++;
+	qelt->next = dpy->head;
+	qelt->event = store;
+	dpy->head = qelt;
+	if (dpy->tail == NULL)
+	    dpy->tail = qelt;
+	dpy->qlen++;
+	return 0;
+	}
+
+int
+XPutBackEvent (
+    register Display * dpy,
+    register XEvent *event)
+	{
+	int ret;
+
+	LockDisplay(dpy);
+	ret = _XPutBackEvent(dpy, event);
+	UnlockDisplay(dpy);
+	return ret;
+	}