Sprite 1984 - 1993/Sprite 1984 - 1993.iso/src/lib/include/RCS/signal.h,v

Text File | 1991-10-25 | 7.7 KB | 408 lines

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1.14
date     91.10.24.17.49.43;  author rab;  state Exp;
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date     91.10.24.17.34.16;  author rab;  state Exp;
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date     91.09.05.21.54.04;  author shirriff;  state Exp;
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date     91.05.30.13.22.03;  author shirriff;  state Exp;
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date     90.12.18.18.39.43;  author kupfer;  state Exp;
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date     90.09.10.16.14.22;  author kupfer;  state Exp;
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date     89.06.15.12.53.40;  author ouster;  state Exp;
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desc
@@


1.14
log
@Deleted my previous changes because it was the wrong way to fix the problem.
@
text
@/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *    @@(#)signal.h    7.3 (Berkeley) 5/14/88
 * $Header: /sprite/src/lib/include/RCS/signal.h,v 1.13 91/10/24 17:34:16 rab Exp Locker: rab $
 */

#ifndef _SIGNAL
#define _SIGNAL

#include <cfuncproto.h>
#include <machSignal.h>

#ifndef    NSIG
#define NSIG    32
#endif

#define    SIGHUP    1    /* hangup */
#define    SIGINT    2    /* interrupt */
#define    SIGQUIT    3    /* quit */
#define    SIGILL    4    /* illegal instruction (not reset when caught) */
#define    SIGTRAP    5    /* trace trap (not reset when caught) */
#define    SIGIOT    6    /* IOT instruction */
#define    SIGABRT    SIGIOT    /* compatibility */
#define    SIGEMT    7    /* EMT instruction */
#define    SIGFPE    8    /* floating point exception */
#define    SIGKILL    9    /* kill (cannot be caught or ignored) */
#define    SIGBUS    10    /* bus error */
#define    SIGSEGV    11    /* segmentation violation */
#define    SIGSYS    12    /* bad argument to system call */
#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    SIGURG    16    /* urgent condition on IO channel */
#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    SIGCLD    SIGCHLD    /* compatibility */
#define    SIGTTIN    21    /* to readers pgrp upon background tty read */
#define    SIGTTOU    22    /* like TTIN for output if (tp->t_local<OSTOP) */
#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 SIGUSR1 30    /* user defined signal 1 */
#define SIGUSR2 31    /* user defined signal 2 */

/*
 * Special Sprite signals:
 */

#define SIGDEBUG 3    /* debug (same as quit in Sprite) */
#define SIGMIG    10    /* migrate process */
#define SIGMIGHOME 29    /* migrate process back to home node */

#ifndef KERNEL
/*
 * This is taken more or less from K&R 2nd ed., section B9.  Recall
 * that signal() returns the previous handler.
 */
extern void (*signal _ARGS_((int sig,
                 void (*handler)(int sig)))) _ARGS_((int sig));

extern int sigblock _ARGS_ ((int mask));
extern int sigpause _ARGS_ ((int mask));
extern int sigsetmask _ARGS_ ((int mask));
#endif

/*
 * 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    0x0001    /* take signal on signal stack */
#define SV_INTERRUPT    0x0002    /* do not restart system on signal return */
#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 */
};

#if 0
/*
 * This declaration has been moved to the machine dependent file
 * machSignal.h
 */

/*
 * Information pushed on stack when a signal is delivered.
 * This is used by the kernel to restore state following
 * execution of the signal handler.  On some systems it is also made
 * available to the handler to allow it to properly restore state if a
 * non-standard exit is performed.  However, user programs should not
 * rely on having access to this information.
 */
struct    sigcontext {
    int    sc_onstack;        /* sigstack state to restore */
    int    sc_mask;        /* signal mask to restore */
    int    sc_sp;            /* sp to restore */
    int    sc_fp;            /* fp to restore */
    int    sc_ap;            /* ap to restore */
    int    sc_pc;            /* pc to restore */
    int    sc_ps;            /* psl to restore */
};
#endif

#define    BADSIG        (void (*)())-1
#define    SIG_DFL        (void (*)())0
#define    SIG_IGN        (void (*)())1

#ifdef KERNEL
#define    SIG_CATCH    (void (*)())2
#define    SIG_HOLD    (void (*)())3
#endif

/*
 * Macro for converting signal number to a mask suitable for
 * sigblock().
 */
#define sigmask(m)    (1 << ((m)-1))

#endif /* _SIGNAL */
@


1.13
log
@Added definition of struct sigaction.
@
text
@d7 1
a7 1
 * $Header: /sprite/src/lib/include/RCS/signal.h,v 1.12 91/09/05 21:54:04 shirriff Exp Locker: rab $
a132 12

/*
 * If changes are made to sigset_t or struct sigaction, the same changes
 * must be made in /usr/include/signal.h as well.
 */
typedef int sigset_t;

struct  sigaction {
        void            (*sa_handler)();
        sigset_t        sa_mask;
        int             sa_flags;
};
@


1.12
log
@Added include of machSignal.h to get sigcontext declaration.
@
text
@d7 1
a7 1
 * $Header: /sprite/src/lib/include/RCS/signal.h,v 1.11 91/05/30 13:22:03 shirriff Exp Locker: shirriff $
d133 12
@


1.11
log
@Removed machine-dependent declaration.
@
text
@d7 1
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 * $Header: /sprite/src/lib/include/RCS/signal.h,v 1.10 90/12/18 18:39:43 kupfer Exp Locker: shirriff $
d14 1
@


1.10
log
@Add function prototypes for signal, sigblock, sigpause, and
sigsetmask.
@
text
@d7 1
a7 1
 * $Header$
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d95 5
d116 1
@


1.9
log
@Change comments for sigcontext to discourage user programmers from
using it.
@
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a70 1
void    (*signal())();
@


1.8
log
@Didn't quite finish previous change.
@
text
@d84 4
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 * execution of the signal handler.  It is also made available
 * to the handler to allow it to properly restore state if
 * a non-standard exit is performed.
@


1.7
log
@Changed signal handlers from int () to void ().
@
text
@d98 3
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#define    BADSIG        (int (*)())-1
#define    SIG_DFL        (int (*)())0
#define    SIG_IGN        (int (*)())1
d103 2
a104 2
#define    SIG_CATCH    (int (*)())2
#define    SIG_HOLD    (int (*)())3
@


1.6
log
@Fixed #endif's.
@
text
@d58 1
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int    (*signal())();
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    int    (*sv_handler)();    /* signal handler */
@


1.5
log
@Added Sprite-specific signals.
@
text
@d10 1
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#endif
d113 1
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#endif _KERNEL
@


1.4
log
@Eliminate code that isn't useful for sprite anyway.
@
text
@d48 8
@


1.3
log
@Add ifdefs so that file can't be processed twice.
@
text
@a14 8
#ifndef sprite
#ifdef KERNEL
#include "../machine/trap.h"    /* codes for SIGILL, SIGFPE */
#else
#include <machine/trap.h>    /* codes for SIGILL, SIGFPE */
#endif
#endif sprite

@


1.2
log
@Ignore machine/trap.h
@
text
@d9 3
d112 2
@


1.1
log
@Initial revision
@
text
@d12 1
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@