third_party/apple_apsl/CFBase.h

   1 /*
   2  * Copyright (c) 2011 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*      CFBase.c
  24         Copyright (c) 1998-2011, Apple Inc. All rights reserved.
  25         Responsibility: Christopher Kane
  26 */
  27
  28 #ifndef THIRD_PARTY_APPLE_APSL_CFBASE_H_
  29 #define THIRD_PARTY_APPLE_APSL_CFBASE_H_
  30
  31 #include "CFRuntime.h"
  32
  33 struct ChromeCFAllocatorLeopards {
  34     ChromeCFRuntimeBase _base;
  35 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED
  36     size_t (*size)(struct _malloc_zone_t *zone, const void *ptr); /* returns the size of a block or 0 if not in this zone; must be fast, especially for negative answers */
  37     void *(*malloc)(struct _malloc_zone_t *zone, size_t size);
  38     void *(*calloc)(struct _malloc_zone_t *zone, size_t num_items, size_t size); /* same as malloc, but block returned is set to zero */
  39     void *(*valloc)(struct _malloc_zone_t *zone, size_t size); /* same as malloc, but block returned is set to zero and is guaranteed to be page aligned */
  40     void (*free)(struct _malloc_zone_t *zone, void *ptr);
  41     void *(*realloc)(struct _malloc_zone_t *zone, void *ptr, size_t size);
  42     void (*destroy)(struct _malloc_zone_t *zone); /* zone is destroyed and all memory reclaimed */
  43     const char  *zone_name;
  44     unsigned (*batch_malloc)(struct _malloc_zone_t *zone, size_t size, void **results, unsigned num_requested); /* given a size, returns pointers capable of holding that size; returns the number of pointers allocated (maybe 0 or less than num_requested) */
  45     void (*batch_free)(struct _malloc_zone_t *zone, void **to_be_freed, unsigned num_to_be_freed); /* frees all the pointers in to_be_freed; note that to_be_freed may be overwritten during the process */
  46     struct malloc_introspection_t       *introspect;
  47     void        *reserved5;
  48 #endif
  49     CFAllocatorRef _allocator;
  50     CFAllocatorContext _context;
  51 };
  52
  53 struct ChromeCFAllocatorLion {
  54     ChromeCFRuntimeBase _base;
  55 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED
  56     size_t      (*size)(struct _malloc_zone_t *zone, const void *ptr); /* returns the size of a block or 0 if not in this zone; must be fast, especially for negative answers */
  57     void        *(*malloc)(struct _malloc_zone_t *zone, size_t size);
  58     void        *(*calloc)(struct _malloc_zone_t *zone, size_t num_items, size_t size); /* same as malloc, but block returned is set to zero */
  59     void        *(*valloc)(struct _malloc_zone_t *zone, size_t size); /* same as malloc, but block returned is set to zero and is guaranteed to be page aligned */
  60     void        (*free)(struct _malloc_zone_t *zone, void *ptr);
  61     void        *(*realloc)(struct _malloc_zone_t *zone, void *ptr, size_t size);
  62     void        (*destroy)(struct _malloc_zone_t *zone); /* zone is destroyed and all memory reclaimed */
  63     const char  *zone_name;
  64
  65     /* Optional batch callbacks; these may be NULL */
  66     unsigned    (*batch_malloc)(struct _malloc_zone_t *zone, size_t size, void **results, unsigned num_requested); /* given a size, returns pointers capable of holding that size; returns the number of pointers allocated (maybe 0 or less than num_requested) */
  67     void        (*batch_free)(struct _malloc_zone_t *zone, void **to_be_freed, unsigned num_to_be_freed); /* frees all the pointers in to_be_freed; note that to_be_freed may be overwritten during the process */
  68
  69     struct malloc_introspection_t       *introspect;
  70     unsigned    version;
  71
  72     /* aligned memory allocation. The callback may be NULL. */
  73         void *(*memalign)(struct _malloc_zone_t *zone, size_t alignment, size_t size);
  74
  75     /* free a pointer known to be in zone and known to have the given size. The callback may be NULL. */
  76     void (*free_definite_size)(struct _malloc_zone_t *zone, void *ptr, size_t size);
  77 #endif
  78     CFAllocatorRef _allocator;
  79     CFAllocatorContext _context;
  80 };
  81
  82 #endif  // THIRD_PARTY_APPLE_APSL_CFBASE_H_