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Annotation of researchv9/X11/src/X.V11R1/lib/X/XSync.c, revision 1.1.1.1

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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