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 /*
27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 #ifndef _SIGNAL_H
32 #define _SIGNAL_H
33
34 #include <sys/feature_tests.h>
35
36 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
37 defined(__XOPEN_OR_POSIX)
38 #include <sys/types.h> /* need pid_t/uid_t/size_t/clock_t/caddr_t/pthread_t */
39 #endif
40
41 #include <iso/signal_iso.h>
42 #include <sys/signal.h>
43
44 /*
45 * Allow global visibility for symbols defined in
46 * C++ "std" namespace in <iso/signal_iso.h>.
47 */
48 #if __cplusplus >= 199711L
49 using std::sig_atomic_t;
50 using std::signal;
51 using std::raise;
52 #endif
53
54 #ifdef __cplusplus
55 extern "C" {
56 #endif
57
58
59 extern const char **_sys_siglistp; /* signal descriptions */
60 extern const int _sys_siglistn; /* # of signal descriptions */
61
62 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
63 #define _sys_siglist _sys_siglistp
64 #define _sys_nsig _sys_siglistn
65 #endif
66
67 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
68 defined(__XOPEN_OR_POSIX)
69 extern int kill(pid_t, int);
70 extern int sigaction(int, const struct sigaction *_RESTRICT_KYWD,
71 struct sigaction *_RESTRICT_KYWD);
72 #ifndef _KERNEL
73 extern int sigaddset(sigset_t *, int);
74 extern int sigdelset(sigset_t *, int);
75 extern int sigemptyset(sigset_t *);
76 extern int sigfillset(sigset_t *);
77 extern int sigismember(const sigset_t *, int);
78 #endif
79 extern int sigpending(sigset_t *);
80 extern int sigprocmask(int, const sigset_t *_RESTRICT_KYWD,
81 sigset_t *_RESTRICT_KYWD);
82 extern int sigsuspend(const sigset_t *);
83 #endif /* defined(__EXTENSIONS__) || !defined(_STRICT_STDC)... */
84
85 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
86 !defined(__XOPEN_OR_POSIX))
87 #include <sys/procset.h>
88 extern int gsignal(int);
89 extern int (*ssignal(int, int (*)(int)))(int);
90 extern int sigsend(idtype_t, id_t, int);
91 extern int sigsendset(const procset_t *, int);
92 extern int sig2str(int, char *);
93 extern int str2sig(const char *, int *);
94 #define SIG2STR_MAX 32
95 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC)... */
96
97 /* Added in Issue 4 version 2, obsoleted in Issue 6 and removed in Issue 7 */
98 #if (!defined(_STRICT_SYMBOLS)) || (defined(_XPG4_2) && !defined(_XPG7))
99 /* bsd_signal removed from Issue 7 */
100 extern void (*bsd_signal(int, void (*)(int)))(int);
101 #endif
102
103 /* Added in Issue 4 version 2 */
104 #if (!defined(_STRICT_SYMBOLS)) || defined(_XPG4_2)
105 extern int killpg(pid_t, int);
106 extern int siginterrupt(int, int);
107 extern int sigaltstack(const stack_t *_RESTRICT_KYWD, stack_t *_RESTRICT_KYWD);
108 extern int sighold(int);
109 extern int sigignore(int);
110 extern int sigpause(int);
111 extern int sigrelse(int);
112 extern void (*sigset(int, void (*)(int)))(int);
113 #endif
114
115 /* Added in Issue 4 version 2, obsoleted in SUSv2 and removed in SUSv3 */
116 #if (!defined(_STRICT_SYMBOLS)) || (defined(_XPG4_2) && !defined(_XPG6))
117 extern int sigstack(struct sigstack *, struct sigstack *);
118 #endif
119
120 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
121 !defined(__XOPEN_OR_POSIX)) || (_POSIX_C_SOURCE > 2)
122 #include <sys/siginfo.h>
123 #include <time.h>
124 extern int pthread_kill(pthread_t, int);
125 extern int pthread_sigmask(int, const sigset_t *_RESTRICT_KYWD,
126 sigset_t *_RESTRICT_KYWD);
127 extern int sigwaitinfo(const sigset_t *_RESTRICT_KYWD,
128 siginfo_t *_RESTRICT_KYWD);
129 extern int sigtimedwait(const sigset_t *_RESTRICT_KYWD,
130 siginfo_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
131 extern int sigqueue(pid_t, int, const union sigval);
132 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && */
133
134 /*
135 * sigwait() prototype is defined here.
136 */
137
138 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
139 !defined(__XOPEN_OR_POSIX)) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
140 defined(_POSIX_PTHREAD_SEMANTICS)
141
142 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
143
144 #ifdef __PRAGMA_REDEFINE_EXTNAME
145 #pragma redefine_extname sigwait __posix_sigwait
146 extern int sigwait(const sigset_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
147 #else /* __PRAGMA_REDEFINE_EXTNAME */
148
149 extern int __posix_sigwait(const sigset_t *_RESTRICT_KYWD,
150 int *_RESTRICT_KYWD);
151
152 #ifdef __lint
153 #define sigwait __posix_sigwait
154 #else /* !__lint */
155
156 static int
157 sigwait(const sigset_t *_RESTRICT_KYWD __setp, int *_RESTRICT_KYWD __signo)
158 {
159 return (__posix_sigwait(__setp, __signo));
160 }
161
162 #endif /* !__lint */
163 #endif /* __PRAGMA_REDEFINE_EXTNAME */
164
165 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
166
167 extern int sigwait(sigset_t *);
168
169 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
170
171 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) ... */
172
173 #ifdef __cplusplus
174 }
175 #endif
176
177 #endif /* _SIGNAL_H */