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 32 #ifndef _SIGNAL_H_ 33 #define _SIGNAL_H_ 34 35 #include <sys/cdefs.h> 36 #include <sys/_types.h> 37 #include <sys/signal.h> 38 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 39 #include <machine/ucontext.h> 40 #include <sys/_ucontext.h> 41 #endif 42 43 __NULLABILITY_PRAGMA_PUSH 44 45 #if __BSD_VISIBLE 46 /* 47 * XXX should enlarge these, if only to give empty names instead of bounds 48 * errors for large signal numbers. 49 */ 50 extern const char * const sys_signame[NSIG]; 51 extern const char * const sys_siglist[NSIG]; 52 extern const int sys_nsig; 53 #endif 54 55 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 56 #ifndef _PID_T_DECLARED 57 typedef __pid_t pid_t; 58 #define _PID_T_DECLARED 59 #endif 60 #endif 61 62 #if __POSIX_VISIBLE || __XSI_VISIBLE 63 struct pthread; /* XXX */ 64 typedef struct pthread *__pthread_t; 65 #if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809 66 typedef __pthread_t pthread_t; 67 #define _PTHREAD_T_DECLARED 68 #endif 69 #endif /* __POSIX_VISIBLE || __XSI_VISIBLE */ 70 71 __BEGIN_DECLS 72 int raise(int); 73 74 #if __POSIX_VISIBLE || __XSI_VISIBLE 75 int kill(__pid_t, int); 76 int pthread_kill(__pthread_t, int); 77 int pthread_sigmask(int, const __sigset_t * __restrict, 78 __sigset_t * __restrict); 79 int sigaction(int, const struct sigaction * __restrict, 80 struct sigaction * __restrict); 81 int sigaddset(sigset_t *, int); 82 int sigdelset(sigset_t *, int); 83 int sigemptyset(sigset_t *); 84 int sigfillset(sigset_t *); 85 int sigismember(const sigset_t *, int); 86 int sigpending(sigset_t * _Nonnull); 87 int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict); 88 int sigsuspend(const sigset_t * _Nonnull); 89 int sigwait(const sigset_t * _Nonnull __restrict, 90 int * _Nonnull __restrict); 91 #endif 92 93 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600 94 int sigqueue(__pid_t, int, const union sigval); 95 96 struct timespec; 97 int sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict, 98 const struct timespec * __restrict); 99 int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict); 100 #endif 101 102 #if __XSI_VISIBLE 103 int killpg(__pid_t, int); 104 int sigaltstack(const stack_t * __restrict, stack_t * __restrict); 105 int sighold(int); 106 int sigignore(int); 107 int sigpause(int); 108 int sigrelse(int); 109 void (* _Nullable sigset(int, void (* _Nullable)(int)))(int); 110 int xsi_sigpause(int); 111 #endif 112 113 #if __XSI_VISIBLE >= 600 114 int siginterrupt(int, int); 115 #endif 116 117 #if __POSIX_VISIBLE >= 200809 118 void psignal(int, const char *); 119 #endif 120 121 #if __BSD_VISIBLE 122 int sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right); 123 int sigblock(int); 124 int sigisemptyset(const sigset_t *set); 125 int sigorset(sigset_t *dest, const sigset_t *left, const sigset_t *right); 126 int sigreturn(const struct __ucontext *); 127 int sigsetmask(int); 128 int sigstack(const struct sigstack *, struct sigstack *); 129 int sigvec(int, struct sigvec *, struct sigvec *); 130 #endif 131 __END_DECLS 132 __NULLABILITY_PRAGMA_POP 133 134 #endif /* !_SIGNAL_H_ */ 135