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 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5.3.4 */
35
36 #include <sys/feature_tests.h>
37
38 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
39 defined(__XOPEN_OR_POSIX)
40 #include <sys/types.h> /* need pid_t/uid_t/size_t/clock_t/caddr_t/pthread_t */
41 #endif
42
43 #include <iso/signal_iso.h>
44 #include <sys/signal.h>
45
46 /*
47 * Allow global visibility for symbols defined in
48 * C++ "std" namespace in <iso/signal_iso.h>.
49 */
50 #if __cplusplus >= 199711L
51 using std::sig_atomic_t;
52 using std::signal;
53 using std::raise;
54 #endif
55
56 #ifdef __cplusplus
57 extern "C" {
58 #endif
59
60
61 #if defined(__STDC__)
62
63 extern const char **_sys_siglistp; /* signal descriptions */
64 extern const int _sys_siglistn; /* # of signal descriptions */
65
66 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
67 #define _sys_siglist _sys_siglistp
68 #define _sys_nsig _sys_siglistn
69 #endif
70
71 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
72 defined(__XOPEN_OR_POSIX)
73 extern int kill(pid_t, int);
74 extern int sigaction(int, const struct sigaction *_RESTRICT_KYWD,
75 struct sigaction *_RESTRICT_KYWD);
76 #ifndef _KERNEL
77 extern int sigaddset(sigset_t *, int);
78 extern int sigdelset(sigset_t *, int);
79 extern int sigemptyset(sigset_t *);
80 extern int sigfillset(sigset_t *);
81 extern int sigismember(const sigset_t *, int);
82 #endif
83 extern int sigpending(sigset_t *);
84 extern int sigprocmask(int, const sigset_t *_RESTRICT_KYWD,
85 sigset_t *_RESTRICT_KYWD);
86 extern int sigsuspend(const sigset_t *);
87 #endif /* defined(__EXTENSIONS__) || !defined(_STRICT_STDC)... */
88
89 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
90 !defined(__XOPEN_OR_POSIX))
91 #include <sys/procset.h>
92 extern int gsignal(int);
93 extern int (*ssignal(int, int (*)(int)))(int);
94 extern int sigsend(idtype_t, id_t, int);
95 extern int sigsendset(const procset_t *, int);
96 extern int sig2str(int, char *);
97 extern int str2sig(const char *, int *);
98 #define SIG2STR_MAX 32
99 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC)... */
100
101 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
102 !defined(__XOPEN_OR_POSIX)) || defined(_XPG4_2)
103 extern void (*bsd_signal(int, void (*)(int)))(int);
104 extern int killpg(pid_t, int);
105 extern int siginterrupt(int, int);
106 extern int sigaltstack(const stack_t *_RESTRICT_KYWD, stack_t *_RESTRICT_KYWD);
107 extern int sighold(int);
108 extern int sigignore(int);
109 extern int sigpause(int);
110 extern int sigrelse(int);
111 extern void (*sigset(int, void (*)(int)))(int);
112 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && ... */
113
114 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
115 #if defined(__EXTENSIONS__) || \
116 (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
117 (defined(_XPG4_2) && !defined(_XPG6))
118 extern int sigstack(struct sigstack *, struct sigstack *);
119 #endif
120
121 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
122 !defined(__XOPEN_OR_POSIX)) || (_POSIX_C_SOURCE > 2)
123 #include <sys/siginfo.h>
124 #include <time.h>
125 extern int pthread_kill(pthread_t, int);
126 extern int pthread_sigmask(int, const sigset_t *_RESTRICT_KYWD,
127 sigset_t *_RESTRICT_KYWD);
128 extern int sigwaitinfo(const sigset_t *_RESTRICT_KYWD,
129 siginfo_t *_RESTRICT_KYWD);
130 extern int sigtimedwait(const sigset_t *_RESTRICT_KYWD,
131 siginfo_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
132 extern int sigqueue(pid_t, int, const union sigval);
133 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && */
134
135 #else /* __STDC__ */
136
137 extern char **_sys_siglistp; /* signal descriptions */
138 extern int _sys_siglistn; /* # of signal descriptions */
139
140 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
141 #define _sys_siglist _sys_siglistp
142 #define _sys_nsig _sys_siglistn
143 #endif
144
145 #if defined(__EXTENSIONS__) || defined(__XOPEN_OR_POSIX)
146 extern int kill();
147 extern int sigaction();
148 #ifndef _KERNEL
149 extern int sigaddset();
150 extern int sigdelset();
151 extern int sigemptyset();
152 extern int sigfillset();
153 extern int sigismember();
154 #endif
155 extern int sigpending();
156 extern int sigprocmask();
157 extern int sigsuspend();
158 #endif /* defined(__EXTENSIONS__)... */
159
160 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
161 defined(_XPG4_2)
162 extern void (*bsd_signal())();
163 extern int killpg();
164 extern int siginterrupt();
165 #endif /* defined(__EXTENSIONS__) ... */
166
167 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
168 (defined(_XPG4_2) && !defined(_XPG6))
169 extern int sigstack();
170 #endif
171
172 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
173 extern int gsignal();
174 extern int (*ssignal)();
175 extern int sigsend();
176 extern int sigsendset();
177 extern int sig2str();
178 extern int str2sig();
179 #define SIG2STR_MAX 32
180 #endif
181
182 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
183 defined(_XPG4_2)
184 extern int sigaltstack();
185 extern int sighold();
186 extern int sigignore();
187 extern int sigpause();
188 extern int sigrelse();
189 extern void (*sigset())();
190 #endif
191
192 #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
193 (_POSIX_C_SOURCE > 2)
194 #include <sys/siginfo.h>
195 #include <sys/time.h>
196 extern int pthread_kill();
197 extern int pthread_sigmask();
198 extern int sigwaitinfo();
199 extern int sigtimedwait();
200 extern int sigqueue();
201 #endif
202
203 #endif /* __STDC__ */
204
205 /*
206 * sigwait() prototype is defined here.
207 */
208
209 #if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && \
210 !defined(__XOPEN_OR_POSIX)) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
211 defined(_POSIX_PTHREAD_SEMANTICS)
212
213 #if defined(__STDC__)
214
215 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
216
217 #ifdef __PRAGMA_REDEFINE_EXTNAME
218 #pragma redefine_extname sigwait __posix_sigwait
219 extern int sigwait(const sigset_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
220 #else /* __PRAGMA_REDEFINE_EXTNAME */
221
222 extern int __posix_sigwait(const sigset_t *_RESTRICT_KYWD,
223 int *_RESTRICT_KYWD);
224
225 #ifdef __lint
226 #define sigwait __posix_sigwait
227 #else /* !__lint */
228
229 static int
230 sigwait(const sigset_t *_RESTRICT_KYWD __setp, int *_RESTRICT_KYWD __signo)
231 {
232 return (__posix_sigwait(__setp, __signo));
233 }
234
235 #endif /* !__lint */
236 #endif /* __PRAGMA_REDEFINE_EXTNAME */
237
238 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
239
240 extern int sigwait(sigset_t *);
241
242 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
243
244
245 #else /* __STDC__ */
246
247
248 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
249
250 #ifdef __PRAGMA_REDEFINE_EXTNAME
251 #pragma redefine_extname sigwait __posix_sigwait
252 extern int sigwait();
253 #else /* __PRAGMA_REDEFINE_EXTNAME */
254
255 extern int __posix_sigwait();
256
257 #ifdef __lint
258 #define sigwait __posix_sigwait
259 #else /* !__lint */
260
261 static int
262 sigwait(__setp, __signo)
263 sigset_t *__setp;
264 int *__signo;
265 {
266 return (__posix_sigwait(__setp, __signo));
267 }
268
269 #endif /* !__lint */
270 #endif /* __PRAGMA_REDEFINE_EXTNAME */
271
272 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
273
274 extern int sigwait();
275
276 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
277
278 #endif /* __STDC__ */
279
280 #endif /* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) ... */
281
282 #ifdef __cplusplus
283 }
284 #endif
285
286 #endif /* _SIGNAL_H */