|
|
@@ -0,0 +1,87 @@
|
|
|
+/* Copyright (C) 2002 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>
|
|
|
+
|
|
|
+/* Flags for `semop'. */
|
|
|
+#define SEM_UNDO 0x1000 /* undo the operation on exit */
|
|
|
+
|
|
|
+/* Commands for `semctl'. */
|
|
|
+#define GETPID 11 /* get sempid */
|
|
|
+#define GETVAL 12 /* get semval */
|
|
|
+#define GETALL 13 /* get all semval's */
|
|
|
+#define GETNCNT 14 /* get semncnt */
|
|
|
+#define GETZCNT 15 /* get semzcnt */
|
|
|
+#define SETVAL 16 /* set semval */
|
|
|
+#define SETALL 17 /* set all semval's */
|
|
|
+
|
|
|
+
|
|
|
+/* Data structure describing a set of semaphores. */
|
|
|
+struct semid_ds
|
|
|
+{
|
|
|
+ struct ipc_perm sem_perm; /* operation permission struct */
|
|
|
+ __time_t sem_otime; /* last semop() time */
|
|
|
+ unsigned long int __unused1;
|
|
|
+ __time_t sem_ctime; /* last time changed by semctl() */
|
|
|
+ unsigned long int __unused2;
|
|
|
+ unsigned long int sem_nsems; /* number of semaphores in set */
|
|
|
+ unsigned long int __unused3;
|
|
|
+ unsigned long int __unused4;
|
|
|
+};
|
|
|
+
|
|
|
+/* 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
|
|
|
+
|
|
|
+#ifdef __USE_MISC
|
|
|
+
|
|
|
+/* ipcs ctl cmds */
|
|
|
+# define SEM_STAT 18
|
|
|
+# define SEM_INFO 19
|
|
|
+
|
|
|
+struct seminfo
|
|
|
+{
|
|
|
+ int semmap;
|
|
|
+ int semmni;
|
|
|
+ int semmns;
|
|
|
+ int semmnu;
|
|
|
+ int semmsl;
|
|
|
+ int semopm;
|
|
|
+ int semume;
|
|
|
+ int semusz;
|
|
|
+ int semvmx;
|
|
|
+ int semaem;
|
|
|
+};
|
|
|
+
|
|
|
+#endif /* __USE_MISC */
|
Mike Frysinger