Annotation of src/include/signal.h, Revision 1.13
1.13 ! kettenis 1: /* $OpenBSD: signal.h,v 1.12 2008/04/29 14:44:04 kettenis Exp $ */
1.2 niklas 2: /* $NetBSD: signal.h,v 1.8 1996/02/29 00:04:57 jtc Exp $ */
1.1 deraadt 3:
4: /*-
5: * Copyright (c) 1991, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.7 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)signal.h 8.3 (Berkeley) 3/30/94
33: */
34:
35: #ifndef _USER_SIGNAL_H
36: #define _USER_SIGNAL_H
37:
1.9 millert 38: #include <sys/cdefs.h>
1.1 deraadt 39: #include <sys/signal.h>
40:
1.9 millert 41: #if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE
1.1 deraadt 42: #include <sys/types.h>
43: #endif
44:
1.12 kettenis 45: __BEGIN_DECLS
1.9 millert 46: #if __BSD_VISIBLE
1.1 deraadt 47: extern __const char *__const sys_signame[_NSIG];
48: extern __const char *__const sys_siglist[_NSIG];
49: #endif
50:
1.5 millert 51: int raise(int);
1.9 millert 52: #if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE
1.8 millert 53: void (*bsd_signal(int, void (*)(int)))(int);
1.5 millert 54: int kill(pid_t, int);
55: int sigaction(int, const struct sigaction *, struct sigaction *);
56: int sigaddset(sigset_t *, int);
57: int sigdelset(sigset_t *, int);
58: int sigemptyset(sigset_t *);
59: int sigfillset(sigset_t *);
60: int sigismember(const sigset_t *, int);
61: int sigpending(sigset_t *);
62: int sigprocmask(int, const sigset_t *, sigset_t *);
63: int sigsuspend(const sigset_t *);
1.1 deraadt 64:
1.6 millert 65: #if defined(__GNUC__)
1.13 ! kettenis 66: # if __GNUC_PREREQ__(4, 2)
1.11 espie 67: #define __SIGNAL_INLINE extern __inline __attribute((__gnu_inline__))
68: # else
69: #define __SIGNAL_INLINE extern __inline
70: # endif
71: __SIGNAL_INLINE int sigaddset(sigset_t *set, int signo) {
1.10 millert 72: int *__errno(void);
1.1 deraadt 73:
74: if (signo <= 0 || signo >= _NSIG) {
1.10 millert 75: *__errno() = 22; /* EINVAL */
1.1 deraadt 76: return -1;
77: }
78: *set |= (1 << ((signo)-1)); /* sigmask(signo) */
79: return (0);
80: }
81:
1.11 espie 82: __SIGNAL_INLINE int sigdelset(sigset_t *set, int signo) {
1.10 millert 83: int *__errno(void);
1.1 deraadt 84:
85: if (signo <= 0 || signo >= _NSIG) {
1.10 millert 86: *__errno() = 22; /* EINVAL */
1.1 deraadt 87: return -1;
88: }
89: *set &= ~(1 << ((signo)-1)); /* sigmask(signo) */
90: return (0);
91: }
92:
1.11 espie 93: __SIGNAL_INLINE int sigismember(const sigset_t *set, int signo) {
1.10 millert 94: int *__errno(void);
1.1 deraadt 95:
96: if (signo <= 0 || signo >= _NSIG) {
1.10 millert 97: *__errno() = 22; /* EINVAL */
1.1 deraadt 98: return -1;
99: }
100: return ((*set & (1 << ((signo)-1))) != 0);
101: }
102: #endif
103:
104: /* List definitions after function declarations, or Reiser cpp gets upset. */
105: #define sigemptyset(set) (*(set) = 0, 0)
106: #define sigfillset(set) (*(set) = ~(sigset_t)0, 0)
107:
1.9 millert 108: #if __BSD_VISIBLE || __XPG_VISIBLE >= 420
1.5 millert 109: int killpg(pid_t, int);
110: int siginterrupt(int, int);
111: int sigpause(int);
112: int sigreturn(struct sigcontext *);
113: int sigstack(const struct sigstack *, struct sigstack *);
114: int sigaltstack(const struct sigaltstack *, struct sigaltstack *);
1.9 millert 115: #if __BSD_VISIBLE
116: void psignal(unsigned int, const char *);
117: int sigblock(int);
118: int sigsetmask(int);
1.5 millert 119: int sigvec(int, struct sigvec *, struct sigvec *);
1.9 millert 120: #endif
121: #if __BSD_VISIBLE || __POSIX_VISIBLE >= 199309 || __XPG_VISIBLE >= 500
1.5 millert 122: int sigwait(const sigset_t *, int *);
1.9 millert 123: #endif
124: #endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
125: #endif /* __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE */
1.1 deraadt 126: __END_DECLS
127:
128: #endif /* !_USER_SIGNAL_H */
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