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01: /* Copyright (C) 2002, 2004 Free Software Foundation, Inc.
02:    This file is part of the GNU C Library.
03:    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
04: 
05:    The GNU C Library is free software; you can redistribute it and/or
06:    modify it under the terms of the GNU Lesser General Public
07:    License as published by the Free Software Foundation; either
08:    version 2.1 of the License, or (at your option) any later version.
09: 
10:    The GNU C Library is distributed in the hope that it will be useful,
11:    but WITHOUT ANY WARRANTY; without even the implied warranty of
12:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13:    Lesser General Public License for more details.
14: 
15:    You should have received a copy of the GNU Lesser General Public
16:    License along with the GNU C Library; if not, write to the Free
17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18:    02111-1307 USA.  */
19: 
20: #ifndef _SEMAPHORE_H
21: # error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
22: #endif
23: 
24: #include <bits/wordsize.h>
25: 
26: #if __WORDSIZE == 64
27: # define __SIZEOF_SEM_T 32
28: #else
29: # define __SIZEOF_SEM_T 16
30: #endif
31: 
32: 
33: /* Value returned if `sem_open' failed.  */
34: #define SEM_FAILED      ((sem_t *) 0)
35: 
36: 
37: typedef union
38: {
39:   char __size[__SIZEOF_SEM_T];
40:   long int __align;
41: } sem_t;
42: 

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