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Diffstat (limited to 'include/mach/sa/sys/signal.h')
| -rw-r--r-- | include/mach/sa/sys/signal.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/include/mach/sa/sys/signal.h b/include/mach/sa/sys/signal.h new file mode 100644 index 0000000..c3c1206 --- /dev/null +++ b/include/mach/sa/sys/signal.h @@ -0,0 +1,206 @@ +/* + * Copyright (c) 1982, 1986, 1989, 1991, 1993 + * The Regents of the University of California. All rights reserved. + * (c) UNIX System Laboratories, Inc. + * All or some portions of this file are derived from material licensed + * to the University of California by American Telephone and Telegraph + * Co. or Unix System Laboratories, Inc. and are reproduced herein with + * the permission of UNIX System Laboratories, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)signal.h 8.2 (Berkeley) 1/21/94 + * signal.h,v 1.2 1994/08/02 07:53:32 davidg Exp + */ + +#ifndef _MACH_SA_SYS_SIGNAL_H_ +#define _MACH_SA_SYS_SIGNAL_H_ + +#define NSIG 32 /* counting 0; could be 33 (mask is 1-32) */ + +#define SIGHUP 1 /* hangup */ +#define SIGINT 2 /* interrupt */ +#define SIGQUIT 3 /* quit */ +#define SIGILL 4 /* illegal instruction (not reset when caught) */ +#ifndef _POSIX_SOURCE +#define SIGTRAP 5 /* trace trap (not reset when caught) */ +#endif +#define SIGABRT 6 /* abort() */ +#ifndef _POSIX_SOURCE +#define SIGIOT SIGABRT /* compatibility */ +#define SIGEMT 7 /* EMT instruction */ +#endif +#define SIGFPE 8 /* floating point exception */ +#define SIGKILL 9 /* kill (cannot be caught or ignored) */ +#ifndef _POSIX_SOURCE +#define SIGBUS 10 /* bus error */ +#endif +#define SIGSEGV 11 /* segmentation violation */ +#ifndef _POSIX_SOURCE +#define SIGSYS 12 /* bad argument to system call */ +#endif +#define SIGPIPE 13 /* write on a pipe with no one to read it */ +#define SIGALRM 14 /* alarm clock */ +#define SIGTERM 15 /* software termination signal from kill */ +#ifndef _POSIX_SOURCE +#define SIGURG 16 /* urgent condition on IO channel */ +#endif +#define SIGSTOP 17 /* sendable stop signal not from tty */ +#define SIGTSTP 18 /* stop signal from tty */ +#define SIGCONT 19 /* continue a stopped process */ +#define SIGCHLD 20 /* to parent on child stop or exit */ +#define SIGTTIN 21 /* to readers pgrp upon background tty read */ +#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */ +#ifndef _POSIX_SOURCE +#define SIGIO 23 /* input/output possible signal */ +#define SIGXCPU 24 /* exceeded CPU time limit */ +#define SIGXFSZ 25 /* exceeded file size limit */ +#define SIGVTALRM 26 /* virtual time alarm */ +#define SIGPROF 27 /* profiling time alarm */ +#define SIGWINCH 28 /* window size changes */ +#define SIGINFO 29 /* information request */ +#endif +#define SIGUSR1 30 /* user defined signal 1 */ +#define SIGUSR2 31 /* user defined signal 2 */ + +#if defined(_ANSI_SOURCE) || defined(__cplusplus) +/* + * Language spec sez we must list exactly one parameter, even though we + * actually supply three. Ugh! + */ +#define SIG_DFL (void (*)(int))0 +#define SIG_IGN (void (*)(int))1 +#define SIG_ERR (void (*)(int))-1 +#else +#define SIG_DFL (void (*)())0 +#define SIG_IGN (void (*)())1 +#define SIG_ERR (void (*)())-1 +#endif + +#ifndef _ANSI_SOURCE + +typedef unsigned int sigset_t; + +/* + * POSIX 1003.1b: Generic value to pass back to an application. + */ +union sigval +{ + int sival_int; + void *sival_ptr; +}; + +/* + * This structure is passed to signal handlers + * that use the new SA_SIGINFO calling convention (see below). + */ +typedef struct +{ + int si_signo; + int si_code; + union sigval si_value; +} siginfo_t; + +/* Values for si_code, indicating the source of the signal */ +#define SI_USER 0 /* sent by kill(), raise(), or abort() */ +#define SI_QUEUE 1 /* sent by sigqueue() */ +#define SI_TIMER 2 /* generated by an expired timer */ +#define SI_ASYNCIO 3 /* generated by completion of an async i/o */ +#define SI_MESGQ 4 /* generated by the arrival of a message */ +#define SI_IRQ 5 /* hardware int dispatched to application */ + +/* + * Signal vector "template" used in sigaction call. + */ +struct sigaction { + union { /* signal handler */ + void (*sa_u_handler)(); + void (*sa_u_sigaction)(int, siginfo_t *, void *); + } sa_u; + sigset_t sa_mask; /* signal mask to apply */ + int sa_flags; /* see signal options below */ +}; +#define sa_handler sa_u.sa_u_handler +#define sa_sigaction sa_u.sa_u_sigaction + +#ifndef _POSIX_SOURCE +#define SA_ONSTACK 0x0001 /* take signal on signal stack */ +#define SA_RESTART 0x0002 /* restart system on signal return */ +#define SA_DISABLE 0x0004 /* disable taking signals on alternate stack */ +#ifdef COMPAT_SUNOS +#define SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */ +#endif +#endif +#define SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */ +#define SA_SIGINFO 0x0010 /* use sa_sigaction calling convention */ + +/* + * Flags for sigprocmask: + */ +#define SIG_BLOCK 1 /* block specified signal set */ +#define SIG_UNBLOCK 2 /* unblock specified signal set */ +#define SIG_SETMASK 3 /* set specified signal set */ + +/* + * POSIX 1003.1b: + * Used when requesting queued notification of an event, + * such as a timer expiration or a message arrival. + */ +struct sigevent +{ + int sigev_notify; + union + { + struct + { + int __signo; + union sigval __value; + } __sig; + struct + { + void (*__handler)(void); + void *__stack; + } __fastint; + } __u; +}; + +#define sigev_signo __u.__sig.__signo +#define sigev_value __u.__sig.__value + +#define sigev_handler __u.__fastint.__handler +#define sigev_stack __u.__fastint.__stack + +/* Values for sigev_notify */ +#define SIGEV_NONE 0 +#define SIGEV_SIGNAL 1 +#define SIGEV_FASTINT 2 + +#endif /* !_ANSI_SOURCE */ + +#endif /* !_MACH_SA_SYS_SIGNAL_H_ */ |