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File:  [Research Unix] / researchv9 / X11 / src / X.V11R1 / lib / X / XSync.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:22:00 2018 UTC (8 years, 1 month ago) by root
Branches: belllabs, MAIN
CVS tags: researchv9-SUN3_old, researchv9-SUN3, HEAD
researchv9-SUN3(old)

#include "copyright.h"

/* $Header: /var/lib/cvsd/repos/research/researchv9/X11/src/X.V11R1/lib/X/XSync.c,v 1.1.1.1 2018/04/24 17:22:00 root Exp $ */
/* Copyright    Massachusetts Institute of Technology    1986	*/

#define NEED_REPLIES
#define NEED_EVENTS
#include "Xlibint.h"

extern _XQEvent *_qfree;

/* Synchronize with errors and events, optionally discarding pending events */

XSync (dpy, discard)
    register Display *dpy;
    int discard;
{
    xGetInputFocusReply rep;
    register xReq *req;

    LockDisplay(dpy);
    GetEmptyReq(GetInputFocus, req);
    (void) _XReply (dpy, (xReply *)&rep, 0, xTrue);

    if (discard && dpy->head) {
       ((_XQEvent *)dpy->tail)->next = _qfree;
       _qfree = (_XQEvent *)dpy->head;
       dpy->head = dpy->tail = NULL;
       dpy->qlen = 0;
    }
    UnlockDisplay(dpy);
}
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