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/* $Id: $ */
/* Copyright (C) 1997 Sverre Hvammen Johansen,
* Department of Informatics, University of Oslo.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "file.h"
#include "simfile.h"
/******************************************************************************
RUTINEOPTIONS */
static char
__roptions (antarg, arg1)
long antarg;
char arg1[];
{
long i,
size = 0;
if (antarg < 2)
return (__TRUE);
if (!__dynsize)
return (__TRUE);
if (arg1[0] != '-')
return (__TRUE);
if (arg1[1] != 'm' && arg1[1] != 'k' && arg1[1] != 'M' && arg1[1] != 'K')
return (__TRUE);
for (i = 2; arg1[i] >= '0' && arg1[i] <= '9'; i++)
size = size * 10 + arg1[i] - '0';
if (arg1[1] == 'm' || arg1[1] == 'M')
size *= 1024;
if (arg1[i] == '\0')
{
__maxsize = __poolsize = size;
if (arg1[1] == 'k' || arg1[1] == 'K')
(void) fprintf (stderr, "Poolsize is changed to %dK\n", __poolsize);
else
(void) fprintf (stderr, "Poolsize is changed to %dM\n",
__poolsize / 1024);
}
return (__TRUE);
}
/******************************************************************************
RutineAllocDynMem */
static void
__rallocdynmem (size)
long size;
{
__min = (__dhp) calloc ((unsigned) (size), (unsigned) 1);
if (!__min)
__rerror ("Allocdynmem: Virtual memory exhausted");
__fri = __min;
__max = (__dhp) ((char *) __min + size);
}
/******************************************************************************
RUTINESTART */
#if HAVE_SIGNAL_H
#include <signal.h>
#endif
#if HAVE_SIGFPE
RETSIGTYPE
__rfloat_trap ()
{
__rerror ("Arithmetic overflow");
}
#endif
#if HAVE_SIGSEGV
RETSIGTYPE
__rseg_trap ()
{
__rerror ("System error: Segmentation violation");
}
#endif
#if HAVE_SIGILL
RETSIGTYPE
__rillegal_trap ()
{
__rerror ("System error: Illegal instruction");
}
#endif
#if HAVE_SIGTRAP
RETSIGTYPE
__rtrace_trap ()
{
__rerror ("System error: Trace trap");
}
#endif
#if HAVE_SIGSYS
RETSIGTYPE
__rsys_trap ()
{
__rerror ("System error: Bad argument to system call");
}
#endif
#if HAVE_SIGBUS
RETSIGTYPE
__rbus_trap ()
{
__rerror ("System error: Bus error");
}
#endif
__rstart (argc, argv)
int argc;
char *argv[];
{
#if CLOCK
clock ();
#endif
__sysin.s.s.file = stdin;
__sysout.s.s.s.file = stdout;
__syserr.s.s.s.file = stderr;
__argc = (long) argc;
__argv = (long) argv;
__progname = argv[0];
__roptions (argc, argv[1]);
__init ();
/* SYSIN :- new infile("...");
* SYSOUT :- new printfile("...");
* SYSIN.open(blanks(INPUT_LINE_LENGTH));
* SYSOUT.open(blanks(OUTPUT_LINE_LENGTH));
* inspect SYSIN do
* inspect SYSOUT do */
if (__poolsize)
__rallocdynmem (__poolsize * (long) 1024);
else
__rallocdynmem (DYNMEMSIZEKB * (long) 1024);
__lb = __pb = (__dhp) & __blokk0FILE;
/* Fyller IMAGE til stdin og stdout med blanke */
__rtextvalassign (&((__bs2FILE *) __rsysin ())->IMAGE, (__txtvp) & __tk0);
__rtextvalassign (&((__bs2FILE *) __rsysout ())->IMAGE, (__txtvp) & __tk0);
__rtextvalassign (&((__bs2FILE *) __rsyserr ())->IMAGE, (__txtvp) & __tk0);
/* Kobler c1,c2 i blokk0 til objektene av infile og printfile * henholdsvis
*
* * * * * * * * * * sysin og sysout. */
__blokk0FILE.c1 = __rsysin ();
__blokk0FILE.c2 = __rsysout ();
#if HAVE_SIGFPE
signal (SIGFPE, __rfloat_trap);
#endif
#if HAVE_SIGSEGV
signal (SIGSEGV, __rseg_trap);
#endif
#if HAVE_SIGILL
signal (SIGILL, __rillegal_trap);
#endif
#if HAVE_SIGTRAP
signal (SIGTRAP, __rtrace_trap);
#endif
#if HAVE_SIGSYS
signal (SIGSYS, __rsys_trap);
#endif
#if HAVE_SIGBUS
signal (SIGBUS, __rbus_trap);
#endif
}
/******************************************************************************
RUTINESLUTT */
__rslutt ()
{
if (__gc && ((__bs1FILE *) __blokk0FILE.c2)->open)
{
__rpoutimage (__blokk0FILE.c2);
printf ("%d garbage collection(s) in %.1f seconds.", __gc, __gbctime);
if (__chpoolsize)
{
printf (" Poolsize changed to ");
if (__poolsize >= 1024)
printf ("%dM while running.", __poolsize / 1024);
else
printf ("%dK while running.", __poolsize);
}
printf ("\n");
}
__riclose (__rsysin ());
__roclose (__rsysout ());
__roclose (__rsyserr ());
}
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