/* * 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 * $Id: signal.h,v 1.4 2012/08/26 02:54:59 gdr Exp $ */ #ifndef _SYS_SIGNAL_H_ #define _SYS_SIGNAL_H_ #define NSIG 32 /* counting 0; could be 33 (mask is 1-32) */ #if !defined(_ANSI_SOURCE) && !defined(_MACHINE_SIGNAL_H_) #include /* sigcontext; codes for SIGILL, SIGFPE */ #endif #ifdef KERNEL /* * The kernel doesn't currently use these macros, but if they ever get * into the kernel sources, they'd really cause havoc; the numbers differ * between GNO and ORCA/C */ #undef SIGABRT #undef SIGFPE #undef SIGILL #undef SIGINT #undef SIGSEGV #undef SIGTERM #endif #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 */ #ifndef _POSIX_SOURCE #define SIGCLD SIGCHLD /* System V name for SIGCHLD */ #endif #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 SIGPOLL SIGIO /* System V name for SIGIO */ #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 */ typedef void (*__SIG_FUNC__) __P((int, int)); #define SIG_DFL ((__SIG_FUNC__) (0)) #define SIG_IGN ((__SIG_FUNC__) (1)) #define SIG_ERR ((__SIG_FUNC__) (-1)) #ifndef _ANSI_SOURCE typedef unsigned long sigset_t; /* non-BSD type */ /* * Signal vector "template" used in sigaction call. */ struct sigaction { #ifdef __GNO__ void (*sa_handler)(int, void (*)(void)); /* signal handler */ #else #error __GNO__ is not defined void (*sa_handler)(); /* signal handler */ #endif sigset_t sa_mask; /* signal mask to apply */ int sa_flags; /* see signal options below */ }; #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 */ /* * Flags for sigprocmask: (non-BSD: off by one) */ #define SIG_BLOCK 0 /* block specified signal set */ #define SIG_UNBLOCK 1 /* unblock specified signal set */ #define SIG_SETMASK 2 /* set specified signal set */ #ifndef _POSIX_SOURCE #ifndef _SYS_CDEFS_H_ #include #endif #if 1 /* GNO */ typedef void (*sig_t) __P((int, int)); /* type of signal function */ #else /* BSD */ typedef void (*sig_t) __P((int)); /* type of signal function */ #endif /* * 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 { #ifdef __GNO__ sig_t sv_handler; /* signal handler */ #else void (*sv_handler)(); /* signal handler */ #endif 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 << ((unsigned long int)((m)-1))) #define BADSIG SIG_ERR #endif /* !_POSIX_SOURCE */ #endif /* !_ANSI_SOURCE */ /* * For historical reasons; programs expect signal's return value to be * defined by . */ __BEGIN_DECLS #ifndef _POSIX_SOURCE sig_t signal __P((int, sig_t)); #endif /* * Old definitions: * BSD: void (*signal __P((int, void (*) __P((int))))) __P((int)); * GNO: void *signal(int sig, void (*func)(int, int)); */ __END_DECLS #endif /* !_SYS_SIGNAL_H_ */