/* Functions for memory limit warnings.
- Copyright (C) 1990 Free Software Foundation, Inc.
+ Copyright (C) 1990, 1992, 2002, 2003, 2004,
+ 2005 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs 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; either version 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#ifdef emacs
-#include "config.h"
+#include <config.h>
#include "lisp.h"
#endif
#define EXCEEDS_LISP_PTR(x) 0
#endif
-#include "mem_limits.h"
+#include "mem-limits.h"
/*
Level number of warnings already issued.
/* Function to call to issue a warning;
0 means don't issue them. */
-static void (*warnfunction) ();
-
-extern POINTER sbrk ();
+static void (*warn_function) ();
/* Get more memory space, complaining if we're near the end. */
-static POINTER
-morecore_with_warning (size)
- register int size;
+static void
+check_memory_limits ()
{
- POINTER result;
+#ifdef REL_ALLOC
+ extern POINTER (*real_morecore) ();
+#endif
+ extern POINTER (*__morecore) ();
+
+
register POINTER cp;
- int five_percent;
- int data_size;
+ unsigned long five_percent;
+ unsigned long data_size;
if (lim_data == 0)
get_lim_data ();
five_percent = lim_data / 20;
/* Find current end of memory and issue warning if getting near max */
- cp = sbrk (0);
- data_size = cp - data_space_start;
+#ifdef REL_ALLOC
+ if (real_morecore)
+ cp = (char *) (*real_morecore) (0);
+ else
+#endif
+ cp = (char *) (*__morecore) (0);
+ data_size = (char *) cp - (char *) data_space_start;
- if (warnfunction)
+ if (warn_function)
switch (warnlevel)
{
- case 0:
+ case 0:
if (data_size > five_percent * 15)
{
warnlevel++;
}
break;
- case 1:
+ case 1:
if (data_size > five_percent * 17)
{
warnlevel++;
}
break;
- case 2:
+ case 2:
if (data_size > five_percent * 19)
{
warnlevel++;
warnlevel = 2;
if (EXCEEDS_LISP_PTR (cp))
- (*warnfunction) ("Warning: memory in use exceeds lisp pointer size");
-
- result = sbrk (size);
- if (result == (POINTER) -1)
- return NULL;
- return result;
+ (*warn_function) ("Warning: memory in use exceeds lisp pointer size");
}
/* Cause reinitialization based on job parameters;
POINTER start;
void (*warnfun) ();
{
- extern POINTER (* __morecore) (); /* From gmalloc.c */
+ extern void (* __after_morecore_hook) (); /* From gmalloc.c */
if (start)
data_space_start = start;
else
data_space_start = start_of_data ();
- warnfunction = warnfun;
- __morecore = &morecore_with_warning;
+ warn_function = warnfun;
+ __after_morecore_hook = check_memory_limits;
+
+#ifdef WINDOWSNT
+ /* Force data limit to be recalculated on each run. */
+ lim_data = 0;
+#endif
}
+
+/* arch-tag: eab04eda-1f69-447a-8d9f-95f0a3983ca5
+ (do not change this comment) */