signal.h ( File view )

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			/* The <signal.h> header defines all the ANSI and POSIX signals.
 * MINIX supports all the signals required by POSIX. They are defined below.
 * Some additional signals are also supported.
 */

#ifndef _SIGNAL_H
#define _SIGNAL_H

#ifndef _ANSI_H
#include <ansi.h>
#endif

/* Here are types that are closely associated with signal handling. */
typedef int sig_atomic_t;

#ifdef _POSIX_SOURCE
#ifndef _SIGSET_T
#define _SIGSET_T
typedef unsigned long sigset_t;
#endif
#endif

#define _NSIG             16	/* number of signals used */

#define SIGHUP             1	/* hangup */
#define SIGINT             2	/* interrupt (DEL) */
#define SIGQUIT            3	/* quit (ASCII FS) */
#define SIGILL             4	/* illegal instruction */
#define SIGTRAP            5	/* trace trap (not reset when caught) */
#define SIGABRT            6	/* IOT instruction */
#define SIGIOT             6	/* SIGABRT for people who speak PDP-11 */
#define SIGUNUSED          7	/* spare code */
#define SIGFPE             8	/* floating point exception */
#define SIGKILL            9	/* kill (cannot be caught or ignored) */
#define SIGUSR1           10	/* user defined signal # 1 */
#define SIGSEGV           11	/* segmentation violation */
#define SIGUSR2           12	/* user defined signal # 2 */
#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 */

#define SIGEMT             7	/* obsolete */
#define SIGBUS            10	/* obsolete */

/* POSIX requires the following signals to be defined, even if they are
 * not supported.  Here are the definitions, but they are not supported.
 */
#define SIGCHLD           17	/* child process terminated or stopped */
#define SIGCONT           18	/* continue if stopped */
#define SIGSTOP           19	/* stop signal */
#define SIGTSTP           20	/* interactive stop signal */
#define SIGTTIN           21	/* background process wants to read */
#define SIGTTOU           22	/* background process wants to write */

/* The sighandler_t type is not allowed unless _POSIX_SOURCE is defined. */
#ifdef _POSIX_SOURCE
#define __sighandler_t sighandler_t
#else
typedef void (*__sighandler_t) (int);
#endif

/* Macros used as function pointers. */
#define SIG_ERR    ((__sighandler_t) -1)	/* error return */
#define SIG_DFL	   ((__sighandler_t)  0)	/* default signal handling */
#define SIG_IGN	   ((__sighandler_t)  1)	/* ignore signal */
#define SIG_HOLD   ((__sighandler_t)  2)	/* block signal */
#define SIG_CATCH  ((__sighandler_t)  3)	/* catch signal */

#ifdef _POSIX_SOURCE
struct sigaction {

  __sighandler_t sa_handler;	/* SIG_DFL, SIG_IGN, or pointer to function */
  sigset_t sa_mask;		/* signals to be blocked during handler */
  int sa_flags;			/* special flags */

};

/* Fields for sa_flags. */
#define SA_ONSTACK   0x0001	/* deliver signal on alternate stack */
#define SA_RESETHAND 0x0002	/* reset signal handler when signal
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linux0.00 B0%|04-10-07
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head.s13.22 kB08-01-04|21:38
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a.out.h8.22 kB02-09-04|13:14
asm0.00 B04-10-07|15:01
io.h772.00 B02-09-04|13:14
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segment.h2.50 kB02-09-04|13:14
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fcntl.h3.30 kB02-09-04|13:14
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config.h2.16 kB02-09-04|13:14
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head.h760.00 B02-09-04|13:14
kernel.h1.44 kB02-09-04|13:14
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sys.h5.41 kB02-09-04|13:14
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stdarg.h1.77 kB02-09-04|13:14
stddef.h378.00 B02-09-04|13:14
string.h21.75 kB02-09-04|13:14
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termios.h13.58 kB02-09-04|13:14
time.h1.81 kB02-09-04|13:14
unistd.h9.21 kB02-09-04|13:14
utime.h392.00 B02-09-04|13:14
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_exit.c616.00 B02-09-04|13:12
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