Changed from objc-malloc.c. Raise a MemoryExhaustedException with

NSException instead of calling objc_fatal.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1347 72102866-910b-0410-8b05-ffd578937521

Source/objc-malloc.m

@@ -0,0 +1,106 @@
+/* Memory allocation support for Objective-C: easy garbage collection.
+   Copyright (C) 1993,1994, 1995, 1996 Free Software Foundation, Inc.
+
+   Written by:  R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
+   Created: May 1993
+
+   This file is part of the GNU Objective C Class Library.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/ 
+
+#ifdef __STDC__
+#include <stddef.h>
+#else
+#define size_t unsigned long
+#endif
+
+#ifdef HAVE_VALLOC
+#include <stdlib.h>
+#else
+#define valloc  malloc
+#endif
+
+#include <Foundation/NSException.h>
+
+#define CHECK_ZERO_SIZE(S) if (size == 0) size = 1
+
+void*
+__objc_malloc (size_t size)
+{
+  void* res;
+  CHECK_ZERO_SIZE (size);
+  res = (void*) malloc(size);
+  if (!res)
+    [NSException raise: MemoryExhaustedException
+		 format: @"Virtual memory exhausted"];
+  return res;
+}
+ 
+void*
+__objc_valloc (size_t size)
+{
+  void* res;
+  CHECK_ZERO_SIZE(size);
+  res = (void*) valloc(size);
+  if (!res)
+    [NSException raise: MemoryExhaustedException
+		 format: @"Virtual memory exhausted"];
+  return res;
+}
+ 
+void*
+__objc_realloc (void* mem, size_t size)
+{
+  void* res;
+  CHECK_ZERO_SIZE(size);
+  res = (void*) realloc (mem, size);
+  if (!res)
+    [NSException raise: MemoryExhaustedException
+		 format: @"Virtual memory exhausted"];
+  return res;
+}
+ 
+void*
+__objc_calloc (size_t nelem, size_t size)
+{
+  void* res;
+  CHECK_ZERO_SIZE(size);
+  res = (void*) calloc(nelem, size);
+  if (!res)
+    [NSException raise: MemoryExhaustedException
+		 format: @"Virtual memory exhausted"];
+  return res;
+}
+
+void
+__objc_free (void* mem)
+{
+  free (mem);
+}
+
+/* We should put
+     *(void**)obj = 0xdeadface;
+   into object_dispose(); */
+
+/* I do this to make substituting Boehm's Garbage Collector easy. */
+void *(*objc_malloc)(size_t size) = __objc_malloc;
+void *(*objc_valloc)(size_t size) = __objc_valloc;
+void *(*objc_atomic_malloc)(size_t) = __objc_malloc;
+void *(*objc_realloc)(void *optr, size_t size) = __objc_realloc;
+void *(*objc_calloc)(size_t nelem, size_t size) = __objc_calloc;
+void (*objc_free)(void *optr) = __objc_free;
+
+NSString *MemoryExhaustedException = @"MemoryExhaustedException";