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- /* Includes for memory limit warnings.
- Copyright (C) 1990-1993 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 2, or (at your option)
- any later version.
-
- GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #ifndef _EMACS_MEM_LIMITS_H_
- #define _EMACS_MEM_LIMITS_H_
-
- #ifndef BSD4_2
- #ifndef USG
- #include <sys/vlimit.h>
- #endif /* not USG */
- #else /* if BSD4_2 */
- #include <sys/time.h>
- #include <sys/resource.h>
- #endif /* BSD4_2 */
-
- #ifdef __STDC__
- typedef void *POINTER;
- #else
- typedef char *POINTER;
- #endif
-
- typedef unsigned long SIZE;
-
- #ifdef emacs
- extern POINTER start_of_data ();
-
- #ifdef BSD
- #ifndef DATA_SEG_BITS
- #define start_of_data() &etext
- #endif
- #endif
-
- #else /* Not emacs */
- #define start_of_data() &etext
- #endif /* Not emacs */
-
-
-
- /* start of data space; can be changed by calling malloc_init */
- static POINTER data_space_start;
-
- /* Number of bytes of writable memory we can expect to be able to get */
- static unsigned int lim_data;
-
-
-
- #ifdef USG
-
- get_lim_data ()
- {
- extern long ulimit ();
-
- #ifdef ULIMIT_BREAK_VALUE
- lim_data = ULIMIT_BREAK_VALUE;
- #else
- lim_data = ulimit (3, 0);
- #endif
-
- lim_data -= (long) data_space_start;
- }
-
- #else /* not USG */
- #ifndef BSD4_2
-
- get_lim_data ()
- {
- lim_data = vlimit (LIM_DATA, -1);
- }
-
- #else /* BSD4_2 */
-
- get_lim_data ()
- {
- struct rlimit XXrlimit;
-
- getrlimit (RLIMIT_DATA, &XXrlimit);
- #ifdef RLIM_INFINITY
- lim_data = XXrlimit.rlim_cur & RLIM_INFINITY; /* soft limit */
- #else
- lim_data = XXrlimit.rlim_cur; /* soft limit */
- #endif
- }
- #endif /* BSD4_2 */
- #endif /* not USG */
-
- #endif /* _EMACS_MEM_LIMITS_H_ */
-