1 /* Copyright (C) 2002, 2005, 2007 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef _SEMAPHORE_H 20 # error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead." 21 #endif 22 23 #if _MIPS_SIM == _ABI64 24 # define __SIZEOF_SEM_T 32 25 #else 26 # define __SIZEOF_SEM_T 16 27 #endif 28 29 /* Value returned if `sem_open' failed. */ 30 #define SEM_FAILED ((sem_t *) 0) 31 32 33 typedef union 34 { 35 char __size[__SIZEOF_SEM_T]; 36 long int __align; 37 } sem_t; 38