1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1988 AT&T */
23 /* All Rights Reserved */
24
25 /*
26 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
27 *
28 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
29 * Use is subject to license terms.
30 */
31
32 #ifndef _SIGNAL_H
33 #define _SIGNAL_H
34
35 #include <sys/feature_tests.h>
36
37 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
38 defined(__XOPEN_OR_POSIX)
39 #include <sys/types.h> /* need pid_t/uid_t/size_t/clock_t/caddr_t/pthread_t */
40 #endif
41
42 #include <iso/signal_iso.h>
43 #include <sys/signal.h>
44
45 /*
46 * Allow global visibility for symbols defined in
47 * C++ "std" namespace in <iso/signal_iso.h>.
48 */
49 #if __cplusplus >= 199711L
50 using std::sig_atomic_t;
51 using std::signal;
52 using std::raise;
53 #endif
54
55 #ifdef __cplusplus
56 extern "C" {
57 #endif
58
59
60 extern const char **_sys_siglistp; /* signal descriptions */
61 extern const int _sys_siglistn; /* # of signal descriptions */
62
63 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
64 #define _sys_siglist _sys_siglistp
65 #define _sys_nsig _sys_siglistn
66 #endif
67
68 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
69 defined(__XOPEN_OR_POSIX)
70 extern int kill(pid_t, int);
71 extern int sigaction(int, const struct sigaction *_RESTRICT_KYWD,
72 struct sigaction *_RESTRICT_KYWD);
73 #ifndef _KERNEL
74 extern int sigaddset(sigset_t *, int);
75 extern int sigdelset(sigset_t *, int);
76 extern int sigemptyset(sigset_t *);
77 extern int sigfillset(sigset_t *);
78 extern int sigismember(const sigset_t *, int);
79 #endif
80 extern int sigpending(sigset_t *);
81 extern int sigprocmask(int, const sigset_t *_RESTRICT_KYWD,
82 sigset_t *_RESTRICT_KYWD);
83 extern int sigsuspend(const sigset_t *);
84 #endif /* defined(__EXTENSIONS__) || !defined(_STRICT_STDC)... */
85
86 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
87 !defined(__XOPEN_OR_POSIX))
88 #include <sys/procset.h>
89 extern int gsignal(int);
90 extern int (*ssignal(int, int (*)(int)))(int);
91 extern int sigsend(idtype_t, id_t, int);
92 extern int sigsendset(const procset_t *, int);
93 extern int sig2str(int, char *);
94 extern int str2sig(const char *, int *);
95 #define SIG2STR_MAX 32
96 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC)... */
97
98 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
99 !defined(__XOPEN_OR_POSIX)) || defined(_XPG4_2)
100 extern void (*bsd_signal(int, void (*)(int)))(int);
101 extern int killpg(pid_t, int);
102 extern int siginterrupt(int, int);
103 extern int sigaltstack(const stack_t *_RESTRICT_KYWD, stack_t *_RESTRICT_KYWD);
104 extern int sighold(int);
105 extern int sigignore(int);
106 extern int sigpause(int);
107 extern int sigrelse(int);
108 extern void (*sigset(int, void (*)(int)))(int);
109 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && ... */
110
111 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
112 #if defined(__EXTENSIONS__) || \
113 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
114 (defined(_XPG4_2) && !defined(_XPG6))
115 extern int sigstack(struct sigstack *, struct sigstack *);
116 #endif
117
118 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
119 !defined(__XOPEN_OR_POSIX)) || (_POSIX_C_SOURCE > 2)
120 #include <sys/siginfo.h>
121 #include <time.h>
122 extern int pthread_kill(pthread_t, int);
123 extern int pthread_sigmask(int, const sigset_t *_RESTRICT_KYWD,
124 sigset_t *_RESTRICT_KYWD);
125 extern int sigwaitinfo(const sigset_t *_RESTRICT_KYWD,
126 siginfo_t *_RESTRICT_KYWD);
127 extern int sigtimedwait(const sigset_t *_RESTRICT_KYWD,
128 siginfo_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
129 extern int sigqueue(pid_t, int, const union sigval);
130 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && */
131
132 /*
133 * sigwait() prototype is defined here.
134 */
135
136 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
137 !defined(__XOPEN_OR_POSIX)) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
138 defined(_POSIX_PTHREAD_SEMANTICS)
139
140 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
141
142 #ifdef __PRAGMA_REDEFINE_EXTNAME
143 #pragma redefine_extname sigwait __posix_sigwait
144 extern int sigwait(const sigset_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
145 #else /* __PRAGMA_REDEFINE_EXTNAME */
146
147 extern int __posix_sigwait(const sigset_t *_RESTRICT_KYWD,
148 int *_RESTRICT_KYWD);
149
150 #ifdef __lint
151 #define sigwait __posix_sigwait
152 #else /* !__lint */
153
154 static int
155 sigwait(const sigset_t *_RESTRICT_KYWD __setp, int *_RESTRICT_KYWD __signo)
156 {
157 return (__posix_sigwait(__setp, __signo));
158 }
159
160 #endif /* !__lint */
161 #endif /* __PRAGMA_REDEFINE_EXTNAME */
162
163 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
164
165 extern int sigwait(sigset_t *);
166
167 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
168
169 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) ... */
170
171 #ifdef __cplusplus
172 }
173 #endif
174
175 #endif /* _SIGNAL_H */