raisecond.c File Reference

#include <schily/mconfig.h>
#include <schily/stdio.h>
#include <schily/standard.h>
#include <schily/sigblk.h>
#include <schily/unistd.h>
#include <schily/stdlib.h>
#include <schily/string.h>
#include <schily/avoffset.h>
#include <schily/schily.h>

Include dependency graph for raisecond.c:

Go to the source code of this file.

Macros
#define	STDERR_FILENO   2
#define	eprints(a)   (void)write(STDERR_FILENO, (a), sizeof (a)-1)
#define	eprintl(a)   (void)write(STDERR_FILENO, (a), strlen(a))
#define	is_even(p)   ((((long)(p)) & 1) == 0)
#define	even(p)   (((long)(p)) & ~1L)
#define	next_frame(vp)   vp = (((SIGBLK *)(vp))->sb_savfp);

Functions
LOCAL void raiseabort	__PR ((const char *))
LOCAL BOOL framehandle	__PR ((SIGBLK *, const char *, const char *, long))
EXPORT void	raisecond (char *signame, long arg2) const
LOCAL BOOL	framehandle (SIGBLK *sp, const char *handlename, const char *signame, long arg2)
LOCAL void	raiseabort (char *signame) const

Variables
EXPORT SIGBLK *	__roothandle

Macro Definition Documentation

eprintl

#define eprintl

(

a

)

(void)write(STDERR_FILENO, (a), strlen(a))

Definition at line 47 of file raisecond.c.

eprints

#define eprints

(

a

)

(void)write(STDERR_FILENO, (a), sizeof (a)-1)

Definition at line 46 of file raisecond.c.

even

#define even

(

p

)

(((long)(p)) & ~1L)

Definition at line 50 of file raisecond.c.

is_even

#define is_even

(

p

)

((((long)(p)) & 1) == 0)

Definition at line 49 of file raisecond.c.

next_frame

#define next_frame

(

vp

)

vp = (((SIGBLK *)(vp))->sb_savfp);

Definition at line 84 of file raisecond.c.

STDERR_FILENO

#define STDERR_FILENO   2

Definition at line 44 of file raisecond.c.

Function Documentation

__PR() [1/2]

LOCAL void raiseabort __PR

(

(const char *)

)

__PR() [2/2]

LOCAL BOOL framehandle __PR

(

(SIGBLK *, const char *, const char *, long)

)

framehandle()

LOCAL BOOL framehandle	(	SIGBLK *	sp,
		const char *	handlename,
		const char *	signame,
		long	arg2
	)

Definition at line 145 of file raisecond.c.

{
    for (; sp; sp = sp->sb_signext) {
        if (sp->sb_signame != NULL &&
            streql(sp->sb_signame, handlename)) {
            if (sp->sb_sigfun == NULL) {    /* deactivated */
                return (FALSE);
            } else {
                return (*sp->sb_sigfun)(signame,
                            sp->sb_sigarg, arg2);
            }
        }
    }
    return (FALSE);
}

Referenced by raisecond().

raiseabort()

LOCAL void raiseabort

(

char *

signame

)

const

Definition at line 166 of file raisecond.c.

{
    eprints("Condition not caught: "); eprintl(signame); eprints(".\n");
    abort();
    /* NOTREACHED */
}

Referenced by raisecond().

raisecond()

EXPORT void raisecond	(	char *	signame,
		long	arg2
	)		const

Definition at line 100 of file raisecond.c.

{
    register void   *vp = NULL;
 
#ifdef  HAVE_SCANSTACK
    /*
     * As the SCO OpenServer C-Compiler has a bug that may cause
     * the first function call to getfp() been done before the
     * new stack frame is created, we call getfp() twice.
     */
    (void) getfp();
    vp = getfp();
    next_frame(vp);
#else
    vp = __roothandle;
#endif
 
    while (vp) {
        if (framehandle((SIGBLK *)vp, signame, signame, arg2))
            return;
        else if (framehandle((SIGBLK *)vp, "any_other", signame, arg2))
            return;
#ifdef  HAVE_SCANSTACK
        vp = (struct frame *)((SIGBLK *)vp)->sb_savfp;
#endif
        next_frame(vp);
    }
    /*
     * No matching handler that signals success found.
     * Print error message and abort.
     */
    raiseabort(signame);
    /* NOTREACHED */
}

Referenced by _cvmod(), checkfmt(), and filewrite().

Variable Documentation

__roothandle

EXPORT SIGBLK* __roothandle

Definition at line 81 of file raisecond.c.

Referenced by raisecond().