Libc-997.1.1.tar.gz

[apple/libc.git] / gen / scalable_malloc.h

diff --git a/gen/scalable_malloc.h b/gen/scalable_malloc.h
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--- a/gen/scalable_malloc.h
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-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-
-#import <malloc/malloc.h>
-
-#define SCALABLE_MALLOC_ADD_GUARD_PAGES                (1 << 0)
-    // add a guard page before and after each VM region to help debug
-#define SCALABLE_MALLOC_DONT_PROTECT_PRELUDE   (1 << 1)
-    // do not protect prelude page
-#define SCALABLE_MALLOC_DONT_PROTECT_POSTLUDE  (1 << 2)
-    // do not protect postlude page
-#define SCALABLE_MALLOC_DO_SCRIBBLE            (1 << 3)
-    // write 0x55 onto free blocks
-#define SCALABLE_MALLOC_ABORT_ON_ERROR (1 << 4)
-    // call abort() on any malloc error, such as double free or out of memory.
-#define SCALABLE_MALLOC_PURGEABLE (1 << 5)
-    // allocate objects such that they may be used with VM purgability APIs
-#define SCALABLE_MALLOC_ABORT_ON_CORRUPTION (1 << 6)
-    // call abort() on malloc errors, but not on out of memory.
-
-extern malloc_zone_t *create_scalable_zone(size_t initial_size, unsigned debug_flags);
-    /* Create a new zone that scales for small objects or large objects */
-
-extern malloc_zone_t *create_purgeable_zone(size_t initial_size, malloc_zone_t *malloc_default_zone, unsigned debug_flags);
-    /* Create a new zone that supports malloc_make{un}purgeable() discipline. */
-
-extern malloc_zone_t *create_legacy_scalable_zone(size_t initial_size, unsigned debug_flags);
-    /*
-     * For use by CheckFix: create a new zone whose behavior is, apart from
-     * the use of death-row and per-CPU magazines, that of Leopard.
-     */
-
-/***** Private API for debug and performance tools     ********/
-
-extern boolean_t scalable_zone_statistics(malloc_zone_t *zone, malloc_statistics_t *stats, unsigned subzone);
-    /* Fills stats with some statistics;
-    1 is returned on success; else 0 is returned
-    Currently: subzone=0 => tiny; subzone=1 => small; subzone=2 => large; subzone=3 => huge; any other subzone => returns 0 
-    */
-