/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /* * 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 */ #ifndef _SYS_SIGNAL_H_ #define _SYS_SIGNAL_H_ #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) #define NSIG 32 /* counting 0; could be 33 (mask is 1-32) */ #endif #include <machine/signal.h> /* sigcontext; codes for SIGILL, SIGFPE */ #define SIGHUP 1 /* hangup */ #define SIGINT 2 /* interrupt */ #define SIGQUIT 3 /* quit */ #define SIGILL 4 /* illegal instruction (not reset when caught) */ #if !defined(_POSIX_SOURCE) #define SIGTRAP 5 /* trace trap (not reset when caught) */ #endif #define SIGABRT 6 /* abort() */ #if !defined(_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) */ #if !defined(_POSIX_SOURCE) #define SIGBUS 10 /* bus error */ #endif #define SIGSEGV 11 /* segmentation violation */ #if !defined(_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 */ #if !defined(_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) */ #if !defined(_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; /* * Signal vector "template" used in sigaction call. */ struct sigaction { #if defined(__cplusplus) void (*sa_handler)(int); /* signal handler */ #else void (*sa_handler)(); /* signal handler */ #endif /* __cplusplus */ sigset_t sa_mask; /* signal mask to apply */ int sa_flags; /* see signal options below */ }; #if !defined(_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 */ #define SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */ #endif #define SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */ /* * 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 */ #if !defined(_POSIX_SOURCE) #include <sys/cdefs.h> typedef void (*sig_t) __P((int)); /* type of signal function */ /* * Structure used in sigaltstack call. */ struct sigaltstack { char *ss_sp; /* signal stack base */ int ss_size; /* signal stack length */ int ss_flags; /* SA_DISABLE and/or SA_ONSTACK */ }; #define MINSIGSTKSZ 8192 /* minimum allowable stack */ #define SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended stack size */ /* * 4.3 compatibility: * Signal vector "template" used in sigvec call. */ struct sigvec { void (*sv_handler)(); /* signal handler */ int sv_mask; /* signal mask to apply */ int sv_flags; /* see signal options below */ }; #define SV_ONSTACK SA_ONSTACK #define SV_INTERRUPT SA_RESTART /* same bit, opposite sense */ #define sv_onstack sv_flags /* isn't compatibility wonderful! */ /* * Structure used in sigstack call. */ struct sigstack { char *ss_sp; /* signal stack pointer */ int ss_onstack; /* current status */ }; /* * Macro for converting signal number to a mask suitable for * sigblock(). */ #define sigmask(m) (1 << ((m)-1)) #ifdef KERNEL /* * signals delivered on a per-thread basis. */ #define threadmask (sigmask(SIGILL)|sigmask(SIGTRAP)|\ sigmask(SIGIOT)|sigmask(SIGEMT)|\ sigmask(SIGFPE)|sigmask(SIGBUS)|\ sigmask(SIGSEGV)|sigmask(SIGSYS)|\ sigmask(SIGPIPE)) #endif /* KERNEL */ #define BADSIG SIG_ERR #endif /* !_POSIX_SOURCE */ #endif /* !_ANSI_SOURCE */ /* * For historical reasons; programs expect signal's return value to be * defined by <sys/signal.h>. */ __BEGIN_DECLS void (*signal __P((int, void (*) __P((int))))) __P((int)); __END_DECLS #endif /* !_SYS_SIGNAL_H_ */