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29 * Author: Stephen Gildea, MIT X Consortium
31 * XLockDis.c - multi-thread application-level locking routines
44 register Display* dpy)
49 (*dpy->lock->user_lock_display)(dpy);
51 * We want the threads in the reply queue to all get out before
52 * XLockDisplay returns, in case they have any side effects the
53 * caller of XLockDisplay was trying to protect against.
54 * XLockDisplay puts itself at the head of the event waiters queue
55 * to wait for all the replies to come in.
57 if (dpy->lock && dpy->lock->reply_awaiters) {
60 cvl = (*dpy->lock->create_cvl)(dpy);
62 /* stuff ourselves on the head of the queue */
63 cvl->next = dpy->lock->event_awaiters;
64 dpy->lock->event_awaiters = cvl;
66 while (dpy->lock->reply_awaiters)
67 ConditionWait(dpy, cvl->cv);
68 UnlockNextEventReader(dpy); /* pass the signal on */
76 register Display* dpy)
81 (*dpy->lock->user_unlock_display)(dpy);