Initial revision

1 files changed, 102 insertions, 0 deletions

diff --git a/src/mem-limits.h b/src/mem-limits.h
new file mode 100644
index 00000000000..39200f99501
--- /dev/null
+++ b/src/mem-limits.h
@@ -0,0 +1,102 @@
+/* Includes for memory limit warnings.
+   Copyright (C) 1990 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)
+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 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 NULL
+#undef NULL
+#endif
+#define NULL ((POINTER) 0)
+
+#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 */