include/signal.h

   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 */