2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1991, 1993
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8 * modification, are permitted provided that the following conditions
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31 * @(#)signal.h 8.3 (Berkeley) 3/30/94
38 #include <sys/cdefs.h>
39 #include <sys/_types.h>
40 #include <sys/signal.h>
41 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
42 #include <machine/ucontext.h>
43 #include <sys/_ucontext.h>
46 __NULLABILITY_PRAGMA_PUSH
50 * XXX should enlarge these, if only to give empty names instead of bounds
51 * errors for large signal numbers.
53 extern const char * const sys_signame[NSIG];
54 extern const char * const sys_siglist[NSIG];
55 extern const int sys_nsig;
58 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
59 #ifndef _PID_T_DECLARED
60 typedef __pid_t pid_t;
61 #define _PID_T_DECLARED
65 #if __POSIX_VISIBLE || __XSI_VISIBLE
66 struct pthread; /* XXX */
67 typedef struct pthread *__pthread_t;
68 #if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809
69 typedef __pthread_t pthread_t;
70 #define _PTHREAD_T_DECLARED
72 #endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
77 #if __POSIX_VISIBLE || __XSI_VISIBLE
78 int kill(__pid_t, int);
79 int pthread_kill(__pthread_t, int);
80 int pthread_sigmask(int, const __sigset_t * __restrict,
81 __sigset_t * __restrict);
82 int sigaction(int, const struct sigaction * __restrict,
83 struct sigaction * __restrict);
84 int sigaddset(sigset_t *, int);
85 int sigdelset(sigset_t *, int);
86 int sigemptyset(sigset_t *);
87 int sigfillset(sigset_t *);
88 int sigismember(const sigset_t *, int);
89 int sigpending(sigset_t * _Nonnull);
90 int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
91 int sigsuspend(const sigset_t * _Nonnull);
92 int sigwait(const sigset_t * _Nonnull __restrict,
93 int * _Nonnull __restrict);
96 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
97 int sigqueue(__pid_t, int, const union sigval);
100 int sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
101 const struct timespec * __restrict);
102 int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
106 int killpg(__pid_t, int);
107 int sigaltstack(const stack_t * __restrict, stack_t * __restrict);
112 void (* _Nullable sigset(int, void (* _Nullable)(int)))(int);
113 int xsi_sigpause(int);
116 #if __XSI_VISIBLE >= 600
117 int siginterrupt(int, int);
120 #if __POSIX_VISIBLE >= 200809
121 void psignal(int, const char *);
125 int sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
127 int sigisemptyset(const sigset_t *set);
128 int sigorset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
129 int sigreturn(const struct __ucontext *);
131 int sigstack(const struct sigstack *, struct sigstack *);
132 int sigvec(int, struct sigvec *, struct sigvec *);
135 __NULLABILITY_PRAGMA_POP
137 #endif /* !_SIGNAL_H_ */