1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)signal.h 8.3 (Berkeley) 3/30/94 32 */ 33 34 #ifndef _SIGNAL_H_ 35 #define _SIGNAL_H_ 36 37 #include <sys/cdefs.h> 38 #include <sys/_types.h> 39 #include <sys/signal.h> 40 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 41 #include <machine/ucontext.h> 42 #include <sys/_ucontext.h> 43 #endif 44 45 __NULLABILITY_PRAGMA_PUSH 46 47 #if __BSD_VISIBLE 48 /* 49 * XXX should enlarge these, if only to give empty names instead of bounds 50 * errors for large signal numbers. 51 */ 52 extern const char * const sys_signame[NSIG]; 53 extern const char * const sys_siglist[NSIG]; 54 extern const int sys_nsig; 55 #endif 56 57 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 58 #ifndef _PID_T_DECLARED 59 typedef __pid_t pid_t; 60 #define _PID_T_DECLARED 61 #endif 62 #endif 63 64 #if __POSIX_VISIBLE || __XSI_VISIBLE 65 struct pthread; /* XXX */ 66 typedef struct pthread *__pthread_t; 67 #if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809 68 typedef __pthread_t pthread_t; 69 #define _PTHREAD_T_DECLARED 70 #endif 71 #endif /* __POSIX_VISIBLE || __XSI_VISIBLE */ 72 73 __BEGIN_DECLS 74 int raise(int); 75 76 #if __POSIX_VISIBLE || __XSI_VISIBLE 77 int kill(__pid_t, int); 78 int pthread_kill(__pthread_t, int); 79 int pthread_sigmask(int, const __sigset_t * __restrict, 80 __sigset_t * __restrict); 81 int sigaction(int, const struct sigaction * __restrict, 82 struct sigaction * __restrict); 83 int sigaddset(sigset_t *, int); 84 int sigdelset(sigset_t *, int); 85 int sigemptyset(sigset_t *); 86 int sigfillset(sigset_t *); 87 int sigismember(const sigset_t *, int); 88 int sigpending(sigset_t * _Nonnull); 89 int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict); 90 int sigsuspend(const sigset_t * _Nonnull); 91 int sigwait(const sigset_t * _Nonnull __restrict, 92 int * _Nonnull __restrict); 93 #endif 94 95 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600 96 int sigqueue(__pid_t, int, const union sigval); 97 98 struct timespec; 99 int sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict, 100 const struct timespec * __restrict); 101 int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict); 102 #endif 103 104 #if __XSI_VISIBLE 105 int killpg(__pid_t, int); 106 int sigaltstack(const stack_t * __restrict, stack_t * __restrict); 107 int sighold(int); 108 int sigignore(int); 109 int sigpause(int); 110 int sigrelse(int); 111 void (* _Nullable sigset(int, void (* _Nullable)(int)))(int); 112 int xsi_sigpause(int); 113 #endif 114 115 #if __XSI_VISIBLE >= 600 116 int siginterrupt(int, int); 117 #endif 118 119 #if __POSIX_VISIBLE >= 200809 120 void psignal(int, const char *); 121 #endif 122 123 #if __BSD_VISIBLE 124 int sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right); 125 int sigblock(int); 126 int sigisemptyset(const sigset_t *set); 127 int sigorset(sigset_t *dest, const sigset_t *left, const sigset_t *right); 128 int sigreturn(const struct __ucontext *); 129 int sigsetmask(int); 130 int sigstack(const struct sigstack *, struct sigstack *); 131 int sigvec(int, struct sigvec *, struct sigvec *); 132 #endif 133 __END_DECLS 134 __NULLABILITY_PRAGMA_POP 135 136 #endif /* !_SIGNAL_H_ */ 137