diff options
Diffstat (limited to 'sysdeps/unix/sysv/solaris2/kopensolaris-gnu/bits/sem.h')
-rw-r--r-- | sysdeps/unix/sysv/solaris2/kopensolaris-gnu/bits/sem.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/bits/sem.h b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/bits/sem.h new file mode 100644 index 0000000000..1579ea1484 --- /dev/null +++ b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/bits/sem.h @@ -0,0 +1,74 @@ +/* Copyright (C) 1995, 1996, 1997, 1998, 2008 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SYS_SEM_H +# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead." +#endif + +#include <sys/types.h> + +#define SEM_A 0200 +#define SEM_R 0400 + +/* Flags for `semop'. */ +#define SEM_UNDO 010000 /* undo the operation on exit */ + +/* Commands for `semctl'. */ +#define GETNCNT 3 /* get semncnt */ +#define GETPID 4 /* get sempid */ +#define GETVAL 5 /* get semval */ +#define GETALL 6 /* get all semval's */ +#define GETZCNT 7 /* get semzcnt */ +#define SETVAL 8 /* set semval */ +#define SETALL 9 /* set all semval's */ + + +/* Data structure describing a set of semaphores. */ +struct semid_ds +{ + struct ipc_perm sem_perm; /* operation permission struct */ + struct sem *sem_base; /* ptr to first semaphore in set */ + unsigned short sem_nsems; /* number of semaphores in set */ + __time_t sem_otime; /* last semop() time */ +#if __WORDSIZE == 32 + int32_t sem_pad1; +#endif + __time_t sem_ctime; /* last time changed by semctl() */ +#if __WORDSIZE == 32 + int32_t sem_pad2; +#endif + int sem_binary; /* flag indicating semaphore type */ + long sem_pad3[3]; +}; + +/* The user should define a union like the following to use it for arguments + for `semctl'. + + union semun + { + int val; <= value for SETVAL + struct semid_ds *buf; <= buffer for IPC_STAT & IPC_SET + unsigned short int *array; <= array for GETALL & SETALL + struct seminfo *__buf; <= buffer for IPC_INFO + }; + + Previous versions of this file used to define this union but this is + incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether + one must define the union or not. */ +#define _SEM_SEMUN_UNDEFINED 1 |