^^&&^^

Edit File: ThreadsI.h

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DEALINGS IN THE SOFTWARE.

********************************************************/

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.

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*/
/* $XFree86: xc/lib/Xt/ThreadsI.h,v 3.5 2001/12/14 19:56:31 dawes Exp $ */

#ifndef _XtThreadsI_h
#define _XtThreadsI_h

#include <X11/XlibConf.h>

#ifdef XTHREADS

typedef struct _LockRec *LockPtr;

typedef void (*ThreadAppProc)(
    XtAppContext /* app */
);

typedef void (*ThreadAppYieldLockProc)(
    XtAppContext, /* app */
    Boolean*, /* push_thread */
    Boolean*, /* pushed_thread */
    int* /* level */
);

typedef void (*ThreadAppRestoreLockProc)(
    XtAppContext /* app */,
    int, /* level */
    Boolean* /* pushed_thread */
);

_XFUNCPROTOBEGIN

extern void (*_XtProcessLock)(
    void
);

extern void (*_XtProcessUnlock)(
    void
);

extern void (*_XtInitAppLock)(
    XtAppContext /* app */
);

_XFUNCPROTOEND

#define INIT_APP_LOCK(app) if(_XtInitAppLock) (*_XtInitAppLock)(app)
#define FREE_APP_LOCK(app) if(app && app->free_lock)(*app->free_lock)(app)

#define LOCK_PROCESS if(_XtProcessLock)(*_XtProcessLock)()
#define UNLOCK_PROCESS if(_XtProcessUnlock)(*_XtProcessUnlock)()
#define LOCK_APP(app) if(app && app->lock)(*app->lock)(app)
#define UNLOCK_APP(app) if(app && app->unlock)(*app->unlock)(app)

#define YIELD_APP_LOCK(app,push,pushed,level)\
	 if(app && app->yield_lock) (*app->yield_lock)(app,push,pushed,level)
#define RESTORE_APP_LOCK(app,level,pushed)\
	 if(app && app->restore_lock) (*app->restore_lock)(app,level,pushed)

#define WIDGET_TO_APPCON(w) \
    XtAppContext app = (w && _XtProcessLock ? \
	XtWidgetToApplicationContext(w) : NULL)

#define DPY_TO_APPCON(d) \
    XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext(d): NULL)

#else /* defined(XTHREADS) */

#define LOCK_PROCESS
#define UNLOCK_PROCESS
#define LOCK_APP(app)
#define UNLOCK_APP(app)

#define INIT_APP_LOCK(app)
#define FREE_APP_LOCK(app)

#define WIDGET_TO_APPCON(w)
#define DPY_TO_APPCON(d)

#endif /* !defined(XTHREADS) */
#endif /* _XtThreadsI_h */