1 files changed, 61 insertions, 0 deletions
diff --git a/bits/sem.h b/bits/sem.h
new file mode 100644
index 0000000000..1d3e41bd56
--- /dev/null
+++ b/bits/sem.h
@@ -0,0 +1,61 @@
+/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  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 use <bits/sem.h> directly; include <sys/sem.h> instead."
+#endif
+
+
+#include <features.h>
+#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 */
+
+
+__BEGIN_DECLS
+
+/* 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 */
+  __time_t sem_ctime;			/* last time changed by semctl() */
+  unsigned short int sem_nsems;		/* number of semaphores in set */
+};
+
+/* Union used for argument 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 */
+ };
+
+__END_DECLS