132 lines
4.8 KiB
C
132 lines
4.8 KiB
C
/*
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* Copyright (c) 1982, 1986, 1989, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)signal.h 8.4 (Berkeley) 5/4/95
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*/
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#ifndef _KERN_SIGNAL_H_
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#define _KERN_SIGNAL_H_
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/*
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* Machine-independent definitions for signals.
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*/
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/*
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* The signals.
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*
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* The values of many of these are "well known", particularly 1, 9,
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* 10, and 11.
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*
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* Note that Unix signals are a semantic cesspool; many have special
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* properties or are supposed to interact with the system in special
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* ways. It is gross.
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*/
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#define SIGHUP 1 /* Hangup */
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#define SIGINT 2 /* Interrupt (^C) */
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#define SIGQUIT 3 /* Quit (typically ^\) */
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#define SIGILL 4 /* Illegal instruction */
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#define SIGTRAP 5 /* Breakpoint trap */
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#define SIGABRT 6 /* abort() call */
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#define SIGEMT 7 /* Emulator trap */
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#define SIGFPE 8 /* Floating point exception */
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#define SIGKILL 9 /* Hard kill (unblockable) */
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#define SIGBUS 10 /* Bus error, typically bad pointer alignment*/
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#define SIGSEGV 11 /* Segmentation fault */
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#define SIGSYS 12 /* Bad system call */
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#define SIGPIPE 13 /* Broken pipe */
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#define SIGALRM 14 /* alarm() expired */
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#define SIGTERM 15 /* Termination requested (default kill) */
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#define SIGURG 16 /* Urgent data on socket */
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#define SIGSTOP 17 /* Hard process stop (unblockable) */
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#define SIGTSTP 18 /* Terminal stop (^Z) */
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#define SIGCONT 19 /* Time to continue after stop */
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#define SIGCHLD 20 /* Child process exited */
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#define SIGTTIN 21 /* Stop on tty read while in background */
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#define SIGTTOU 22 /* Stop on tty write while in background */
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#define SIGIO 23 /* Nonblocking or async I/O is now ready */
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#define SIGXCPU 24 /* CPU time resource limit exceeded */
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#define SIGXFSZ 25 /* File size resource limit exceeded */
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#define SIGVTALRM 26 /* Like SIGALRM but in virtual time */
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#define SIGPROF 27 /* Profiling timer */
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#define SIGWINCH 28 /* Window size change on tty */
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#define SIGINFO 29 /* Information request (typically ^T) */
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#define SIGUSR1 20 /* Application-defined */
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#define SIGUSR2 31 /* Application-defined */
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#define SIGPWR 32 /* Power failure */
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#define _NSIG 32
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/* Type for a set of signals; used by e.g. sigprocmask(). */
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typedef __u32 sigset_t;
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/* flags for sigaction.sa_flags */
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#define SA_ONSTACK 1 /* Use sigaltstack() stack. */
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#define SA_RESTART 2 /* Restart syscall instead of interrupting. */
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#define SA_RESETHAND 4 /* Clear handler after one usage. */
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/* codes for sigprocmask() */
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#define SIG_BLOCK 1 /* Block selected signals. */
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#define SIG_UNBLOCK 2 /* Unblock selected signals. */
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#define SIG_SETMASK 3 /* Set mask to the selected signals. */
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/* Type for a signal handler function. */
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typedef void (*__sigfunc)(int);
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/* Magic values for signal handlers. */
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#define SIG_DFL ((__sigfunc) 0) /* Default behavior. */
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#define SIG_IGN ((__sigfunc) 1) /* Ignore the signal. */
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/*
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* Struct for sigaction().
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*/
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struct sigaction {
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__sigfunc sa_handler;
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sigset_t sa_mask;
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unsigned sa_flags;
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};
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/*
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* Struct for sigaltstack().
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* (not very important)
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*/
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struct sigaltstack {
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void *ss_sp;
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size_t ss_size;
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unsigned ss_flags;
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};
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#endif /* _KERN_SIGNAL_H_ */
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