diff options
Diffstat (limited to 'libX11/src/LockDis.c')
| -rw-r--r-- | libX11/src/LockDis.c | 168 |
1 files changed, 84 insertions, 84 deletions
diff --git a/libX11/src/LockDis.c b/libX11/src/LockDis.c index f7bfa7017..12dd97df0 100644 --- a/libX11/src/LockDis.c +++ b/libX11/src/LockDis.c @@ -1,84 +1,84 @@ -
-/*
-
-Copyright 1993, 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.
-
-*/
-
-/*
- * Author: Stephen Gildea, MIT X Consortium
- *
- * XLockDis.c - multi-thread application-level locking routines
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-#ifdef XTHREADS
-#include "locking.h"
-#endif
-
-void
-XLockDisplay(
- register Display* dpy)
-{
-#ifdef XTHREADS
- LockDisplay(dpy);
- if (dpy->lock)
- (*dpy->lock->user_lock_display)(dpy);
- /*
- * We want the threads in the reply queue to all get out before
- * XLockDisplay returns, in case they have any side effects the
- * caller of XLockDisplay was trying to protect against.
- * XLockDisplay puts itself at the head of the event waiters queue
- * to wait for all the replies to come in.
- */
- if (dpy->lock && dpy->lock->reply_awaiters) {
- struct _XCVList *cvl;
-
- cvl = (*dpy->lock->create_cvl)(dpy);
-
- /* stuff ourselves on the head of the queue */
- cvl->next = dpy->lock->event_awaiters;
- dpy->lock->event_awaiters = cvl;
-
- while (dpy->lock->reply_awaiters)
- ConditionWait(dpy, cvl->cv);
- UnlockNextEventReader(dpy); /* pass the signal on */
- }
- UnlockDisplay(dpy);
-#endif
-}
-
-void
-XUnlockDisplay(
- register Display* dpy)
-{
-#ifdef XTHREADS
- LockDisplay(dpy);
- if (dpy->lock)
- (*dpy->lock->user_unlock_display)(dpy);
- UnlockDisplay(dpy);
-#endif
-}
+ +/* + +Copyright 1993, 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. + +*/ + +/* + * Author: Stephen Gildea, MIT X Consortium + * + * XLockDis.c - multi-thread application-level locking routines + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#ifdef XTHREADS +#include "locking.h" +#endif + +void +XLockDisplay( + register Display* dpy) +{ +#ifdef XTHREADS + LockDisplay(dpy); + if (dpy->lock) + (*dpy->lock->user_lock_display)(dpy); + /* + * We want the threads in the reply queue to all get out before + * XLockDisplay returns, in case they have any side effects the + * caller of XLockDisplay was trying to protect against. + * XLockDisplay puts itself at the head of the event waiters queue + * to wait for all the replies to come in. + */ + if (dpy->lock && dpy->lock->reply_awaiters) { + struct _XCVList *cvl; + + cvl = (*dpy->lock->create_cvl)(dpy); + + /* stuff ourselves on the head of the queue */ + cvl->next = dpy->lock->event_awaiters; + dpy->lock->event_awaiters = cvl; + + while (dpy->lock->reply_awaiters) + ConditionWait(dpy, cvl->cv); + UnlockNextEventReader(dpy); /* pass the signal on */ + } + UnlockDisplay(dpy); +#endif +} + +void +XUnlockDisplay( + register Display* dpy) +{ +#ifdef XTHREADS + LockDisplay(dpy); + if (dpy->lock) + (*dpy->lock->user_unlock_display)(dpy); + UnlockDisplay(dpy); +#endif +} |