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      1 /***********************************************************
      2 
      3 Copyright 1987, 1988, 1998  The Open Group
      4 
      5 Permission to use, copy, modify, distribute, and sell this software and its
      6 documentation for any purpose is hereby granted without fee, provided that
      7 the above copyright notice appear in all copies and that both that
      8 copyright notice and this permission notice appear in supporting
      9 documentation.
     10 
     11 The above copyright notice and this permission notice shall be included in
     12 all copies or substantial portions of the Software.
     13 
     14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     20 
     21 Except as contained in this notice, the name of The Open Group shall not be
     22 used in advertising or otherwise to promote the sale, use or other dealings
     23 in this Software without prior written authorization from The Open Group.
     24 
     25 
     26 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
     27 
     28                         All Rights Reserved
     29 
     30 Permission to use, copy, modify, and distribute this software and its
     31 documentation for any purpose and without fee is hereby granted,
     32 provided that the above copyright notice appear in all copies and that
     33 both that copyright notice and this permission notice appear in
     34 supporting documentation, and that the name of Digital not be
     35 used in advertising or publicity pertaining to distribution of the
     36 software without specific, written prior permission.
     37 
     38 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
     39 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
     40 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
     41 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
     42 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
     43 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
     44 SOFTWARE.
     45 
     46 ******************************************************************/
     47 
     48 /****************************************************************
     49  *
     50  * Callbacks
     51  *
     52  ****************************************************************/
     53 
     54 typedef XrmResource **CallbackTable;
     55 
     56 #define _XtCBCalling 1
     57 #define _XtCBFreeAfterCalling 2
     58 
     59 _XFUNCPROTOBEGIN
     60 
     61 typedef struct internalCallbackRec {
     62     unsigned short count;
     63     char	   is_padded;	/* contains NULL padding for external form */
     64     char	   call_state;  /* combination of _XtCB{FreeAfter}Calling */
     65 #if __STDC_VERSION__ >= 199901L
     66     /* When compiling with C99 or newer, use a flexible member to ensure
     67      * padding and alignment for sizeof(). */
     68     XtCallbackRec callbacks[];
     69 #elif defined(LONG64)
     70     unsigned int   align_pad;	/* padding to align callback list */
     71 #endif
     72     /* XtCallbackList */
     73 } InternalCallbackRec, *InternalCallbackList;
     74 
     75 typedef Boolean (*_XtConditionProc)(
     76     XtPointer	/* data */
     77 );
     78 
     79 extern void _XtAddCallback(
     80     InternalCallbackList*	/* callbacks */,
     81     XtCallbackProc		/* callback */,
     82     XtPointer 			/* closure */
     83 );
     84 
     85 extern void _XtAddCallbackOnce(
     86     InternalCallbackList*	/* callbacks */,
     87     XtCallbackProc		/* callback */,
     88     XtPointer 			/* closure */
     89 );
     90 
     91 extern InternalCallbackList _XtCompileCallbackList(
     92     XtCallbackList		/* xtcallbacks */
     93 );
     94 
     95 extern XtCallbackList _XtGetCallbackList(
     96     InternalCallbackList*	/* callbacks */
     97 );
     98 
     99 extern void _XtRemoveAllCallbacks(
    100     InternalCallbackList*	/* callbacks */
    101 );
    102 
    103 extern void _XtRemoveCallback(
    104     InternalCallbackList*	/* callbacks */,
    105     XtCallbackProc		/* callback */,
    106     XtPointer			/* closure */
    107 );
    108 
    109 extern void _XtPeekCallback(
    110     Widget			/* widget */,
    111     XtCallbackList		/* callbacks */,
    112     XtCallbackProc *		/* callback */,
    113     XtPointer *			/* closure */
    114 );
    115 
    116 extern void _XtCallConditionalCallbackList(
    117     Widget			/* widget */,
    118     XtCallbackList		/* callbacks */,
    119     XtPointer			/* call_data */,
    120     _XtConditionProc		/* cond_proc */
    121 );
    122 
    123 _XFUNCPROTOEND
    124