fault.h revision 3e14f97f673e8a630f076077de35afdd43dc1587
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1982-2010 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* David Korn <dgk@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
#ifndef SH_SIGBITS
/*
* UNIX shell
* S. R. Bourne
* Rewritten by David Korn
*
*/
#include <sig.h>
#include <setjmp.h>
#include <error.h>
#include <sfio.h>
#include "FEATURE/setjmp"
#include "FEATURE/sigfeatures"
#ifndef SIGWINCH
# ifdef SIGWIND
# define SIGWINCH SIGWIND
# else
# ifdef SIGWINDOW
# define SIGWINCH SIGWINDOW
# endif
# endif
#endif
typedef void (*SH_SIGTYPE)(int,void(*)(int));
#define SH_FORKLIM 16 /* fork timeout interval */
#define SH_TRAP 0200 /* bit for internal traps */
#define SH_ERRTRAP 0 /* trap for non-zero exit status */
#define SH_KEYTRAP 1 /* trap for keyboard event */
#define SH_DEBUGTRAP 4 /* must be last internal trap */
#define SH_SIGBITS 8
#define SH_SIGFAULT 1 /* signal handler is sh_fault */
#define SH_SIGOFF 2 /* signal handler is SIG_IGN */
#define SH_SIGSET 4 /* pending signal */
#define SH_SIGTRAP 010 /* pending trap */
#define SH_SIGDONE 020 /* default is exit */
#define SH_SIGIGNORE 040 /* default is ingore signal */
#define SH_SIGINTERACTIVE 0100 /* handle interactive specially */
#define SH_SIGTSTP 0200 /* tstp signal received */
#define SH_SIGALRM 0200 /* timer alarm received */
#define SH_SIGTERM SH_SIGOFF /* term signal received */
#define SH_SIGRUNTIME 0400 /* runtime value */
#define SH_SIGRTMIN 0 /* sh.sigruntime[] index */
#define SH_SIGRTMAX 1 /* sh.sigruntime[] index */
/*
* These are longjmp values
*/
#define SH_JMPDOT 2
#define SH_JMPEVAL 3
#define SH_JMPTRAP 4
#define SH_JMPIO 5
#define SH_JMPCMD 6
#define SH_JMPFUN 7
#define SH_JMPERRFN 8
#define SH_JMPSUB 9
#define SH_JMPERREXIT 10
#define SH_JMPEXIT 11
#define SH_JMPSCRIPT 12
struct openlist
{
Sfio_t *strm;
struct openlist *next;
};
struct checkpt
{
sigjmp_buf buff;
sigjmp_buf *prev;
int topfd;
int mode;
struct openlist *olist;
#if (ERROR_VERSION >= 20030214L)
Error_context_t err;
#else
struct errorcontext err;
#endif
};
#define sh_pushcontext(bp,n) ( (bp)->mode=(n) , (bp)->olist=0, \
(bp)->topfd=sh.topfd, (bp)->prev=sh.jmplist, \
(bp)->err = *ERROR_CONTEXT_BASE, \
sh.jmplist = (sigjmp_buf*)(&(bp)->buff) \
)
#define sh_popcontext(bp) (sh.jmplist=(bp)->prev, errorpop(&((bp)->err)))
extern void sh_fault(int);
extern void sh_done(void*,int);
extern void sh_chktrap(void);
extern void sh_sigclear(int);
extern void sh_sigdone(void);
extern void sh_siginit(void*);
extern void sh_sigtrap(int);
extern void sh_sigreset(int);
extern void sh_timetraps(void);
extern void *sh_timeradd(unsigned long,int ,void (*)(void*),void*);
extern void timerdel(void*);
extern const char e_alarm[];
#endif /* !SH_SIGBITS */