1 /************************************************************
2 
3 Copyright (c) 1993, Oracle and/or its affiliates. All rights reserved.
4 
5 Permission is hereby granted, free of charge, to any person obtaining a
6 copy of this software and associated documentation files (the "Software"),
7 to deal in the Software without restriction, including without limitation
8 the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 and/or sell copies of the Software, and to permit persons to whom the
10 Software is furnished to do so, subject to the following conditions:
11 
12 The above copyright notice and this permission notice (including the next
13 paragraph) shall be included in all copies or substantial portions of the
14 Software.
15 
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 DEALINGS IN THE SOFTWARE.
23 
24 ********************************************************/
25 
26 /*
27 
28 Copyright 1994, 1998  The Open Group
29 
30 Permission to use, copy, modify, distribute, and sell this software and its
31 documentation for any purpose is hereby granted without fee, provided that
32 the above copyright notice appear in all copies and that both that
33 copyright notice and this permission notice appear in supporting
34 documentation.
35 
36 The above copyright notice and this permission notice shall be included in
37 all copies or substantial portions of the Software.
38 
39 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
40 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
41 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
42 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
43 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
44 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
45 
46 Except as contained in this notice, the name of The Open Group shall not be
47 used in advertising or otherwise to promote the sale, use or other dealings
48 in this Software without prior written authorization from The Open Group.
49 
50 */
51 /* $XFree86: xc/lib/Xt/ThreadsI.h,v 3.5 2001/12/14 19:56:31 dawes Exp $ */
52 
53 #ifndef _XtThreadsI_h
54 #define _XtThreadsI_h
55 
56 #include <X11/XlibConf.h>
57 
58 #ifdef XTHREADS
59 
60 typedef struct _LockRec *LockPtr;
61 
62 typedef void (*ThreadAppProc)(
63     XtAppContext /* app */
64 );
65 
66 typedef void (*ThreadAppYieldLockProc)(
67     XtAppContext, /* app */
68     Boolean*, /* push_thread */
69     Boolean*, /* pushed_thread */
70     int* /* level */
71 );
72 
73 typedef void (*ThreadAppRestoreLockProc)(
74     XtAppContext /* app */,
75     int, /* level */
76     Boolean* /* pushed_thread */
77 );
78 
79 _XFUNCPROTOBEGIN
80 
81 extern void (*_XtProcessLock)(
82     void
83 );
84 
85 extern void (*_XtProcessUnlock)(
86     void
87 );
88 
89 extern void (*_XtInitAppLock)(
90     XtAppContext /* app */
91 );
92 
93 _XFUNCPROTOEND
94 
95 #define INIT_APP_LOCK(app) if(_XtInitAppLock) (*_XtInitAppLock)(app)
96 #define FREE_APP_LOCK(app) if(app && app->free_lock)(*app->free_lock)(app)
97 
98 #define LOCK_PROCESS if(_XtProcessLock)(*_XtProcessLock)()
99 #define UNLOCK_PROCESS if(_XtProcessUnlock)(*_XtProcessUnlock)()
100 #define LOCK_APP(app) if(app && app->lock)(*app->lock)(app)
101 #define UNLOCK_APP(app) if(app && app->unlock)(*app->unlock)(app)
102 
103 #define YIELD_APP_LOCK(app,push,pushed,level)\
104 	 if(app && app->yield_lock) (*app->yield_lock)(app,push,pushed,level)
105 #define RESTORE_APP_LOCK(app,level,pushed)\
106 	 if(app && app->restore_lock) (*app->restore_lock)(app,level,pushed)
107 
108 #define WIDGET_TO_APPCON(w) \
109     XtAppContext app = (w && _XtProcessLock ? \
110 	XtWidgetToApplicationContext(w) : NULL)
111 
112 #define DPY_TO_APPCON(d) \
113     XtAppContext app = (_XtProcessLock ? XtDisplayToApplicationContext(d): NULL)
114 
115 #else /* defined(XTHREADS) */
116 
117 #define LOCK_PROCESS
118 #define UNLOCK_PROCESS
119 #define LOCK_APP(app)
120 #define UNLOCK_APP(app)
121 
122 #define INIT_APP_LOCK(app)
123 #define FREE_APP_LOCK(app)
124 
125 #define WIDGET_TO_APPCON(w)
126 #define DPY_TO_APPCON(d)
127 
128 #endif /* !defined(XTHREADS) */
129 #endif /* _XtThreadsI_h */
130