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Annotation of researchv9/X11/src/X.V11R1/lib/X/XSync.c, revision 1.1

1.1     ! root        1: #include "copyright.h"
        !             2: 
        !             3: /* $Header: XSync.c,v 11.12 87/09/11 08:07:42 toddb Exp $ */
        !             4: /* Copyright    Massachusetts Institute of Technology    1986  */
        !             5: 
        !             6: #define NEED_REPLIES
        !             7: #define NEED_EVENTS
        !             8: #include "Xlibint.h"
        !             9: 
        !            10: extern _XQEvent *_qfree;
        !            11: 
        !            12: /* Synchronize with errors and events, optionally discarding pending events */
        !            13: 
        !            14: XSync (dpy, discard)
        !            15:     register Display *dpy;
        !            16:     int discard;
        !            17: {
        !            18:     xGetInputFocusReply rep;
        !            19:     register xReq *req;
        !            20: 
        !            21:     LockDisplay(dpy);
        !            22:     GetEmptyReq(GetInputFocus, req);
        !            23:     (void) _XReply (dpy, (xReply *)&rep, 0, xTrue);
        !            24: 
        !            25:     if (discard && dpy->head) {
        !            26:        ((_XQEvent *)dpy->tail)->next = _qfree;
        !            27:        _qfree = (_XQEvent *)dpy->head;
        !            28:        dpy->head = dpy->tail = NULL;
        !            29:        dpy->qlen = 0;
        !            30:     }
        !            31:     UnlockDisplay(dpy);
        !            32: }
        !            33: 

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