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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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sig
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sigTypes.h
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1992-12-18
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/*
* sig.h --
*
* Data structures and procedure headers exported by the
* the signal module.
*
* Copyright (C) 1985 Regents of the University of California
* All rights reserved.
*
*
* $Header: /cdrom/src/kernel/Cvsroot/kernel/sig/sigTypes.h,v 1.4 90/10/15 16:58:26 mendel Exp $ SPRITE (Berkeley)
*/
/*
* This is because machTypes needs Sig_Context, and Sig_Context needs
* machTypes.
*/
#ifdef KERNEL
#include <machTypes.h>
#else
#include <kernel/machTypes.h>
#endif
#ifndef _SIGTYPES
#define _SIGTYPES
#ifdef KERNEL
#include <user/sig.h>
#include <procTypes.h>
#else
#include <sig.h>
#include <kernel/procTypes.h>
#endif
/*
* The signal context that is used to restore the state after a signal.
*/
typedef struct {
int oldHoldMask; /* The signal hold mask that was in
* existence before this signal
* handler was called. */
Mach_SigContext machContext; /* The machine dependent context
* to restore the process from. */
} Sig_Context;
/*
* Structure that user sees on stack when a signal is taken.
* Sig_Context+Sig_Stack must be double word aligned for the sun4.
* Thus there is 4 bytes of padding here.
*/
typedef struct {
int sigNum; /* The number of this signal. */
int sigCode; /* The code of this signal. */
Sig_Context *contextPtr; /* Pointer to structure used to restore the
* state before the signal. */
int sigAddr; /* Address of fault. */
int pad; /* Explained above. */
} Sig_Stack;
#endif /* _SIGTYPES */