globals.c revision e5383a99 
1/*
2
3Copyright 1989, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included
12in all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
18OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20OTHER DEALINGS IN THE SOFTWARE.
21
22Except as contained in this notice, the name of The Open Group shall
23not be used in advertising or otherwise to promote the sale, use or
24other dealings in this Software without prior written authorization
25from The Open Group.
26
27*/
28
29/*
30 * This file should contain only those objects which must be predefined.
31 */
32#ifdef HAVE_CONFIG_H
33#include <config.h>
34#endif
35#include <X11/Xlib.h>
36#include <X11/extensions/Xext.h>
37#include <stddef.h>			/* for definition of NULL */
38
39/*
40 * If possible, it is useful to have the global data default to a null value.
41 * Some shared library implementations are *much* happier if there isn't any
42 * global initialized data.
43 */
44#ifdef NULL_NOT_ZERO			/* then need to initialize */
45#define SetZero(t,var,z) t var = z
46#else
47#define SetZero(t,var,z) t var
48#endif
49
50#ifdef ATTSHAREDLIB			/* then need extra variables */
51/*
52 * If we need to define extra variables for each global
53 */
54#define ZEROINIT(t,var,val) SetZero(t,var,val); \
55  SetZero (long, _libX_##var##Flag, 0); \
56  SetZero (void *, _libX_##var##Ptr, NULL)
57
58#else /* else not ATTSHAREDLIB */
59/*
60 * no extra crud
61 */
62#define ZEROINIT(t,var,val) SetZero (t, var, val)
63
64#endif /* ATTSHAREDLIB */
65
66
67/*
68 * Error handlers; used to be in XlibInt.c
69 */
70ZEROINIT (XextErrorHandler, _XExtensionErrorFunction, NULL);
71
72/*
73 * NOTE: any additional external definition NEED
74 * to be inserted BELOW this point!!!
75 */
76
77/*
78 * NOTE: any additional external definition NEED
79 * to be inserted ABOVE this point!!!
80 */
81
82