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-rw-r--r--libX11/src/ChkMaskEv.c181
1 files changed, 90 insertions, 91 deletions
diff --git a/libX11/src/ChkMaskEv.c b/libX11/src/ChkMaskEv.c
index 71f724613..cd3af5d99 100644
--- a/libX11/src/ChkMaskEv.c
+++ b/libX11/src/ChkMaskEv.c
@@ -1,91 +1,90 @@
-/*
-
-Copyright 1985, 1987, 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.
-
-*/
-
-#define NEED_EVENTS
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-
-extern long const _Xevent_to_mask[];
-
-#define AllPointers (PointerMotionMask|PointerMotionHintMask|ButtonMotionMask)
-#define AllButtons (Button1MotionMask|Button2MotionMask|Button3MotionMask|\
- Button4MotionMask|Button5MotionMask)
-
-/*
- * Check existing events in queue to find if any match. If so, return.
- * If not, flush buffer and see if any more events are readable. If one
- * matches, return. If all else fails, tell the user no events found.
- */
-
-Bool XCheckMaskEvent (
- register Display *dpy,
- long mask, /* Selected event mask. */
- register XEvent *event) /* XEvent to be filled in. */
-{
- register _XQEvent *prev, *qelt;
- unsigned long qe_serial = 0;
- int n; /* time through count */
-
- LockDisplay(dpy);
-
- /* Delete unclaimed cookies */
- _XFreeEventCookies(dpy);
-
- prev = NULL;
- for (n = 3; --n >= 0;) {
- for (qelt = prev ? prev->next : dpy->head;
- qelt;
- prev = qelt, qelt = qelt->next) {
- if ((qelt->event.type < GenericEvent) &&
- (_Xevent_to_mask[qelt->event.type] & mask) &&
- ((qelt->event.type != MotionNotify) ||
- (mask & AllPointers) ||
- (mask & AllButtons & qelt->event.xmotion.state))) {
- *event = qelt->event;
- _XDeq(dpy, prev, qelt);
- UnlockDisplay(dpy);
- return True;
- }
- }
- if (prev)
- qe_serial = prev->qserial_num;
- switch (n) {
- case 2:
- _XEventsQueued(dpy, QueuedAfterReading);
- break;
- case 1:
- _XFlush(dpy);
- break;
- }
- if (prev && prev->qserial_num != qe_serial)
- /* another thread has snatched this event */
- prev = NULL;
- }
- UnlockDisplay(dpy);
- return False;
-}
+/*
+
+Copyright 1985, 1987, 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"
+
+extern long const _Xevent_to_mask[];
+
+#define AllPointers (PointerMotionMask|PointerMotionHintMask|ButtonMotionMask)
+#define AllButtons (Button1MotionMask|Button2MotionMask|Button3MotionMask|\
+ Button4MotionMask|Button5MotionMask)
+
+/*
+ * Check existing events in queue to find if any match. If so, return.
+ * If not, flush buffer and see if any more events are readable. If one
+ * matches, return. If all else fails, tell the user no events found.
+ */
+
+Bool XCheckMaskEvent (
+ register Display *dpy,
+ long mask, /* Selected event mask. */
+ register XEvent *event) /* XEvent to be filled in. */
+{
+ register _XQEvent *prev, *qelt;
+ unsigned long qe_serial = 0;
+ int n; /* time through count */
+
+ LockDisplay(dpy);
+
+ /* Delete unclaimed cookies */
+ _XFreeEventCookies(dpy);
+
+ prev = NULL;
+ for (n = 3; --n >= 0;) {
+ for (qelt = prev ? prev->next : dpy->head;
+ qelt;
+ prev = qelt, qelt = qelt->next) {
+ if ((qelt->event.type < GenericEvent) &&
+ (_Xevent_to_mask[qelt->event.type] & mask) &&
+ ((qelt->event.type != MotionNotify) ||
+ (mask & AllPointers) ||
+ (mask & AllButtons & qelt->event.xmotion.state))) {
+ *event = qelt->event;
+ _XDeq(dpy, prev, qelt);
+ UnlockDisplay(dpy);
+ return True;
+ }
+ }
+ if (prev)
+ qe_serial = prev->qserial_num;
+ switch (n) {
+ case 2:
+ _XEventsQueued(dpy, QueuedAfterReading);
+ break;
+ case 1:
+ _XFlush(dpy);
+ break;
+ }
+ if (prev && prev->qserial_num != qe_serial)
+ /* another thread has snatched this event */
+ prev = NULL;
+ }
+ UnlockDisplay(dpy);
+ return False;
+}