diff options
Diffstat (limited to 'nx-X11/lib/X11/ChkIfEv.c')
| -rw-r--r-- | nx-X11/lib/X11/ChkIfEv.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/nx-X11/lib/X11/ChkIfEv.c b/nx-X11/lib/X11/ChkIfEv.c deleted file mode 100644 index 313e4395c..000000000 --- a/nx-X11/lib/X11/ChkIfEv.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - -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" - -/* - * 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 XCheckIfEvent ( - register Display *dpy, - register XEvent *event, /* XEvent to be filled in. */ - Bool (*predicate)( - Display* /* display */, - XEvent* /* event */, - char* /* arg */ - ), /* function to call */ - char *arg) -{ - register _XQEvent *prev, *qelt; - unsigned long qe_serial = 0; - int n; /* time through count */ - - LockDisplay(dpy); - prev = NULL; - for (n = 3; --n >= 0;) { - for (qelt = prev ? prev->next : dpy->head; - qelt; - prev = qelt, qelt = qelt->next) { - if(qelt->qserial_num > qe_serial - && (*predicate)(dpy, &qelt->event, arg)) { - *event = qelt->event; - _XDeq(dpy, prev, qelt); - _XStoreEventCookie(dpy, event); - 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; -} - -#ifdef NX_TRANS_SOCKET - -/* - * This is just like XCheckIfEvent() but doesn't - * flush the output buffer if it can't read new - * events. - */ - -Bool XCheckIfEventNoFlush ( - register Display *dpy, - register XEvent *event, /* XEvent to be filled in. */ - Bool (*predicate)( - Display* /* display */, - XEvent* /* event */, - char* /* arg */ - ), /* function to call */ - char *arg) - -{ - register _XQEvent *prev, *qelt; - unsigned long qe_serial = 0; - int n; /* time through count */ - - LockDisplay(dpy); - prev = NULL; - for (n = 2; --n >= 0;) { - for (qelt = prev ? prev->next : dpy->head; - qelt; - prev = qelt, qelt = qelt->next) { - if(qelt->qserial_num > qe_serial - && (*predicate)(dpy, &qelt->event, arg)) { - *event = qelt->event; - _XDeq(dpy, prev, qelt); - _XStoreEventCookie(dpy, event); - UnlockDisplay(dpy); - return True; - } - } - if (prev) - qe_serial = prev->qserial_num; - switch (n) { - case 1: - _XEventsQueued(dpy, QueuedAfterReading); - break; - } - if (prev && prev->qserial_num != qe_serial) - /* another thread has snatched this event */ - prev = NULL; - } - UnlockDisplay(dpy); - return False; -} - -#endif |