Hallo, dies ist ein Test.

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/*
 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef _SYS_SEM_H
#define	_SYS_SEM_H

#include <sys/ipc.h>
#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
#include <sys/tsol/label.h>
#endif

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * IPC Semaphore Facility.
 */

/*
 * Implementation Constants.
 */

/*
 * Permission Definitions.
 */

#define	SEM_A	0200	/* alter permission */
#define	SEM_R	0400	/* read permission */

/*
 * Semaphore Operation Flags.
 */

#define	SEM_UNDO	010000	/* set up adjust on exit entry */

/*
 * Semctl Command Definitions.
 */

#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 */

/*
 * Structure Definitions.
 */

struct semid_ds {
	struct ipc_perm sem_perm;	/* operation permission struct */
	struct sem	*sem_base;	/* ptr to first semaphore in set */
	ushort_t	sem_nsems;	/* # of semaphores in set */
#if defined(_LP64)
	time_t		sem_otime;	/* last semop time */
	time_t		sem_ctime;	/* last change time */
#else	/* _LP64 */
	time_t		sem_otime;	/* last semop time */
	int32_t		sem_pad1;	/* reserved for time_t expansion */
	time_t		sem_ctime;	/* last change time */
	int32_t		sem_pad2;	/* time_t expansion */
#endif	/* _LP64 */
	int		sem_binary;	/* flag indicating semaphore type */
	long		sem_pad3[3];	/* reserve area */
};

/*
 * User semaphore template for semop system calls.
 */
struct sembuf {
	ushort_t	sem_num;	/* semaphore # */
	short		sem_op;		/* semaphore operation */
	short		sem_flg;	/* operation flags */
};

#if !defined(_KERNEL)
int semctl(int, int, int, ...);
int semget(key_t, int, int);
int semids(int *, uint_t, uint_t *);
int semop(int, struct sembuf *, size_t);
#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
int semgetlabel(int, int, m_label_t *);
int semsetlabel(int, int, m_label_t *);
int semtimedop(int, struct sembuf *, size_t, const struct timespec *);
#endif
#endif /* !_KERNEL */

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_SEM_H */