Hallo, dies ist ein Test.

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/*
 * Copyright (c) 1988, 2018, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef _SIGNAL_H
#define	_SIGNAL_H

#include <sys/feature_tests.h>

#if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
	defined(__XOPEN_OR_POSIX)
#include <sys/types.h>	/* need pid_t/uid_t/size_t/clock_t/caddr_t/pthread_t */
#endif

#include <iso/signal_iso.h>
#include <sys/signal.h>

/*
 * Allow global visibility for symbols defined in
 * C++ "std" namespace in <iso/signal_iso.h>.
 */
#if __cplusplus >= 199711L
using std::sig_atomic_t;
using std::signal;
using std::raise;
#endif

#ifdef	__cplusplus
extern "C" {
#endif

extern const char	**_sys_siglistp;	/* signal descriptions */
extern const int	_sys_siglistn;		/* # of signal descriptions */

#if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
#define	_sys_siglist	_sys_siglistp
#define	_sys_nsig	_sys_siglistn
#endif

#if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
	defined(__XOPEN_OR_POSIX)
extern int kill(pid_t, int);
extern int sigaction(int, const struct sigaction *_RESTRICT_KYWD,
	struct sigaction *_RESTRICT_KYWD);
extern int sigaddset(sigset_t *, int);
extern int sigdelset(sigset_t *, int);
extern int sigemptyset(sigset_t *);
extern int sigfillset(sigset_t *);
extern int sigismember(const sigset_t *, int);
extern int sigpending(sigset_t *);
extern int sigprocmask(int, const sigset_t *_RESTRICT_KYWD,
	sigset_t *_RESTRICT_KYWD);
extern int sigsuspend(const sigset_t *);
#endif /* defined(__EXTENSIONS__) || !defined(_STRICT_STDC)... */

#if defined(__EXTENSIONS__) || \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
#include <sys/procset.h>
extern int gsignal(int);
extern int (*ssignal(int, int (*)(int)))(int);
extern int sigsend(idtype_t, id_t, int);
extern int sigsendset(const procset_t *, int);
extern int sig2str(int, char *);
extern int str2sig(const char *, int *);
#define	SIG2STR_MAX	32
extern int sigqueue_wait(pid_t, int, const union sigval,
    const struct timespec *);
extern int pthread_sigqueue(pthread_t, int, const union sigval);
extern int pthread_sigqueue_wait(pthread_t, int, const union sigval,
    const struct timespec *);
extern int proc_thr_kill(pid_t, pthread_t, int);
extern int proc_thr_sigqueue(pid_t, pthread_t, int, const union sigval);
extern int proc_thr_sigqueue_wait(pid_t, pthread_t, int, const union sigval,
    const struct timespec *);

#endif /* defined(__EXTENSIONS__) || ... */

#if defined(__EXTENSIONS__) || \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
	defined(_XPG4_2)
extern int killpg(pid_t, int);
extern int siginterrupt(int, int);
extern int sigaltstack(const stack_t *_RESTRICT_KYWD, stack_t *_RESTRICT_KYWD);
extern int sighold(int);
extern int sigignore(int);
extern int sigpause(int);
extern int sigrelse(int);
extern void (*sigset(int, void (*)(int)))(int);
#endif /* defined(__EXTENSIONS__) || ... */

#if defined(__EXTENSIONS__) || \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
	defined(_XPG7)
extern void psignal(int, const char *);
extern void psiginfo(const siginfo_t *, const char *);
#endif /* defined(__EXTENSIONS__) || ... */

/* removed in SUSv4 (XPG7, UNIX V7) */
#if defined(__EXTENSIONS__) || \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
	(defined(_XPG4_2) && !defined(_XPG7))
extern void (*bsd_signal(int, void (*)(int)))(int);
#endif

/* Marked as LEGACY in SUSv2 and removed in SUSv3 */
#if defined(__EXTENSIONS__) || \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
	(defined(_XPG4_2) && !defined(_XPG6))
extern int sigstack(struct sigstack *, struct sigstack *);
#endif

#if defined(__EXTENSIONS__) || \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
	_POSIX_C_SOURCE > 2
#include <sys/siginfo.h>
#include <time.h>
/*
 * Semantics of pthread_kill() were tightened in XPG7. Older binaries require
 * pthread_kill() to have previous (undefined in standard) semantics.
 * The old Solaris behaviour is to permit a return of ESRCH if pthread_kill() is
 * called on a zombie thread: XPG7 behaviour defines this as a valid operation
 * and expects it to succeed (all other parameters being valid).
 *
 * Note - because this is a behaviour change, we don't want XPG7 behaviour
 * overriding previously established behaviour in environments where
 * __EXTENSIONS__ is defined along with _XOPEN_SOURCE or _POSIX_C_SOURCE.
 * The trampoline function is provided for compilers that do not support #pragma
 * redefine_extname, so that no unexpected behaviour results. Using #define to
 * change this is fine in lint or dtrace, and must be accounted for so that the
 * source that is linted/dtraced matches the functions that would actually be
 * called.
 *
 */
#if !defined(__LIBC) && (!defined(__XOPEN_OR_POSIX) || defined(_XPG7))
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname pthread_kill __pthread_kill_xpg7

extern int pthread_kill(pthread_t, int);

#else /* __PRAGMA_REDEFINE_EXTNAME */

extern int __pthread_kill_xpg7(pthread_t, int);

#if defined(__lint) || defined(__SUNW_D)	/* lint or dtrace */
#define	pthread_kill __pthread_kill_xpg7
#else /* __lint || __SUNW_D */

static int
pthread_kill(pthread_t __pthread, int __signo) {
	return (__pthread_kill_xpg7(__pthread, __signo));
}

#endif /* __lint || __SUNW_D */
#endif /* __PRAGMA_REDEFINE_EXTNAME */

#else /* !defined(__LIBC) && (!defined(__XOPEN_OR_POSIX) || defined(_XPG7)) */

extern int pthread_kill(pthread_t, int);

#endif /* defined(_XPG7) */

extern int pthread_sigmask(int, const sigset_t *_RESTRICT_KYWD,
	sigset_t *_RESTRICT_KYWD);
extern int sigwaitinfo(const sigset_t *_RESTRICT_KYWD,
	siginfo_t *_RESTRICT_KYWD);
extern int sigtimedwait(const sigset_t *_RESTRICT_KYWD,
	siginfo_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
extern int sigqueue(pid_t, int, const union sigval);
#endif /* defined(__EXTENSIONS__) || */

/*
 * sigwait() prototype is defined here.
 */

#if	defined(__EXTENSIONS__) || \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
	_POSIX_C_SOURCE - 0 >= 199506L || !defined(__USE_DRAFT6_PROTOTYPES__)

#if	(_POSIX_C_SOURCE - 0 >= 199506L) || !defined(__USE_DRAFT6_PROTOTYPES__)

#ifdef __PRAGMA_REDEFINE_EXTNAME

#pragma redefine_extname sigwait __posix_sigwait
extern int sigwait(const sigset_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);

#else  /* __PRAGMA_REDEFINE_EXTNAME */

extern int __posix_sigwait(const sigset_t *_RESTRICT_KYWD,
    int *_RESTRICT_KYWD);

#if defined(__lint) || defined(__SUNW_D)	/* lint or dtrace */
#define	sigwait __posix_sigwait
#else	/* __lint || __SUNW_D */
static int
sigwait(const sigset_t *_RESTRICT_KYWD __setp, int *_RESTRICT_KYWD __signo)
{
	return (__posix_sigwait(__setp, __signo));
}
#endif /* __lint || __SUNW_D */

#endif /* __PRAGMA_REDEFINE_EXTNAME */

#else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */

extern int sigwait(sigset_t *);

#endif  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */

#endif /* defined(__EXTENSIONS__) || ... */

#ifdef	__cplusplus
}
#endif

#endif	/* _SIGNAL_H */