/*
 * tclPanic.c --
 *
 *  Source code for the "Tcl_Panic" library procedure for Tcl;
 *  individual applications will probably override this with
 *  an application-specific panic procedure.
 *
 * Copyright (c) 1988-1993 The Regents of the University of California.
 * Copyright (c) 1994 Sun Microsystems, Inc.
 * Copyright (c) 1998-1999 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 */

#include "microtcl/tclInt.h"

/*
 * The panicProc variable contains a pointer to an application
 * specific panic procedure.
 */

void (*panicProc) _ANSI_ARGS_(TCL_VARARGS(char *,format)) = NULL;

/*
 *----------------------------------------------------------------------
 *
 * Tcl_SetPanicProc --
 *
 *  Replace the default panic behavior with the specified functiion.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Sets the panicProc variable.
 *
 *----------------------------------------------------------------------
 */

void
Tcl_SetPanicProc(proc)
    void (*proc) _ANSI_ARGS_(TCL_VARARGS(char *,format));
{
    panicProc = proc;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_PanicVA --
 *
 *  Print an error message and kill the process.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  The process dies, entering the debugger if possible.
 *
 *----------------------------------------------------------------------
 */

void
Tcl_PanicVA (format, argList)
    char *format;       /* Format string, suitable for passing to
                 * fprintf. */
    va_list argList;        /* Variable argument list. */
{
    char *arg1, *arg2, *arg3, *arg4;    /* Additional arguments (variable in
                     * number) to pass to fprintf. */
    char *arg5, *arg6, *arg7, *arg8;

    arg1 = va_arg(argList, char *);
    arg2 = va_arg(argList, char *);
    arg3 = va_arg(argList, char *);
    arg4 = va_arg(argList, char *);
    arg5 = va_arg(argList, char *);
    arg6 = va_arg(argList, char *);
    arg7 = va_arg(argList, char *);
    arg8 = va_arg(argList, char *);

    if (panicProc != NULL) {
    (void) (*panicProc)(format, arg1, arg2, arg3, arg4,
        arg5, arg6, arg7, arg8);
    } else {
    (void) fprintf(stderr, format, arg1, arg2, arg3, arg4, arg5, arg6,
        arg7, arg8);
    (void) fprintf(stderr, "\n");
    (void) fflush(stderr);
    abort();
    }
}

/*
 *----------------------------------------------------------------------
 *
 * panic --
 *
 *  Print an error message and kill the process.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  The process dies, entering the debugger if possible.
 *
 *----------------------------------------------------------------------
 */

    /* VARARGS ARGSUSED */
void
panic TCL_VARARGS_DEF(char *,arg1)
{
    va_list argList;
    char *format;

    format = TCL_VARARGS_START(char *,arg1,argList);
    Tcl_PanicVA(format, argList);
    va_end (argList);
}
