freebsd-dev/include/signal.h

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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)signal.h 8.3 (Berkeley) 3/30/94
sigset_t change (part 5 of 5) ----------------------------- Most of the userland changes are in libc. For both the alpha and the i386 setjmp has been changed to accomodate for the new sigset_t. Internally, libc is mostly rewritten to use the new syscalls. The exception is in compat-43/sigcompat.c The POSIX thread library has also been rewritten to use the new sigset_t. Except, that it currently only handles NSIG signals instead of the maximum _SIG_MAXSIG. This should not be a problem because current applications don't use any signals higher than NSIG. There are version bumps for the following libraries: libdialog libreadline libc libc_r libedit libftpio libss These libraries either a) have one of the modified structures visible in the interface, or b) use sigset_t internally and may cause breakage if new binaries are used against libraries that don't have the sigset_t change. This not an immediate issue, but will be as soon as applications start using the new range to its fullest. NOTE: libncurses already had an version bump and has not been given one now. NOTE: doscmd is a real casualty and has been disconnected for the moment. Reconnection will eventually happen after doscmd has been fixed. I'm aware that being the last one to touch it, I'm automaticly promoted to being maintainer. According to good taste this means that I will receive a badge which either will be glued or mechanically stapled, drilled or otherwise violently forced onto me :-) NOTE: pcvt/vttest cannot be compiled with -traditional. The change cause sys/types to be included along the way which contains the const and volatile modifiers. I don't consider this a solution, but more a workaround.
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* $FreeBSD$
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*/
#ifndef _SIGNAL_H_
#define _SIGNAL_H_
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#include <sys/cdefs.h>
#include <sys/_types.h>
#include <sys/signal.h>
#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
#include <machine/ucontext.h>
#include <sys/_ucontext.h>
#endif
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__NULLABILITY_PRAGMA_PUSH
#if __BSD_VISIBLE
/*
* XXX should enlarge these, if only to give empty names instead of bounds
* errors for large signal numbers.
*/
extern const char * const sys_signame[NSIG];
extern const char * const sys_siglist[NSIG];
extern const int sys_nsig;
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#endif
#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
#ifndef _PID_T_DECLARED
typedef __pid_t pid_t;
#define _PID_T_DECLARED
#endif
#endif
#if __POSIX_VISIBLE || __XSI_VISIBLE
struct pthread; /* XXX */
typedef struct pthread *__pthread_t;
#if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809
typedef __pthread_t pthread_t;
#define _PTHREAD_T_DECLARED
#endif
#endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
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__BEGIN_DECLS
int raise(int);
#if __POSIX_VISIBLE || __XSI_VISIBLE
int kill(__pid_t, int);
int pthread_kill(__pthread_t, int);
int pthread_sigmask(int, const __sigset_t * __restrict,
__sigset_t * __restrict);
int sigaction(int, const struct sigaction * __restrict,
struct sigaction * __restrict);
int sigaddset(sigset_t *, int);
int sigdelset(sigset_t *, int);
int sigemptyset(sigset_t *);
int sigfillset(sigset_t *);
int sigismember(const sigset_t *, int);
int sigpending(sigset_t * _Nonnull);
int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
int sigsuspend(const sigset_t * _Nonnull);
int sigwait(const sigset_t * _Nonnull __restrict,
int * _Nonnull __restrict);
#endif
#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
int sigqueue(__pid_t, int, const union sigval);
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struct timespec;
int sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
const struct timespec * __restrict);
int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
#endif
#if __XSI_VISIBLE
int killpg(__pid_t, int);
int sigaltstack(const stack_t * __restrict, stack_t * __restrict);
int sighold(int);
int sigignore(int);
int sigpause(int);
int sigrelse(int);
void (* _Nullable sigset(int, void (* _Nullable)(int)))(int);
int xsi_sigpause(int);
#endif
#if __XSI_VISIBLE >= 600
int siginterrupt(int, int);
#endif
#if __POSIX_VISIBLE >= 200809
void psignal(int, const char *);
#endif
#if __BSD_VISIBLE
int sigblock(int);
int sigreturn(const struct __ucontext *);
int sigsetmask(int);
int sigstack(const struct sigstack *, struct sigstack *);
int sigvec(int, struct sigvec *, struct sigvec *);
#endif
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__END_DECLS
__NULLABILITY_PRAGMA_POP
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#endif /* !_SIGNAL_H_ */