src/shims/malloc_zone.h

   1 /*
   2  * Copyright (c) 2009 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_APACHE_LICENSE_HEADER_START@
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  * @APPLE_APACHE_LICENSE_HEADER_END@
  19  */
  20
  21 #ifndef __DISPATCH_SHIMS_MALLOC_ZONE__
  22 #define __DISPATCH_SHIMS_MALLOC_ZONE__
  23
  24 #include <sys/types.h>
  25
  26 #include <stdlib.h>
  27
  28 /*
  29  * Implement malloc zones as a simple wrapper around malloc(3) on systems
  30  * that don't support them.
  31  */
  32 #if !HAVE_MALLOC_CREATE_ZONE
  33 typedef void * malloc_zone_t;
  34
  35 static inline malloc_zone_t *
  36 malloc_create_zone(size_t start_size, unsigned flags)
  37 {
  38
  39         return ((void *)(-1));
  40 }
  41
  42 static inline void
  43 malloc_destroy_zone(malloc_zone_t *zone)
  44 {
  45
  46 }
  47
  48 static inline malloc_zone_t *
  49 malloc_default_zone(void)
  50 {
  51
  52         return ((void *)(-1));
  53 }
  54
  55 static inline malloc_zone_t *
  56 malloc_zone_from_ptr(const void *ptr)
  57 {
  58
  59         return ((void *)(-1));
  60 }
  61
  62 static inline void *
  63 malloc_zone_malloc(malloc_zone_t *zone, size_t size)
  64 {
  65
  66         return (malloc(size));
  67 }
  68
  69 static inline void *
  70 malloc_zone_calloc(malloc_zone_t *zone, size_t num_items, size_t size)
  71 {
  72
  73         return (calloc(num_items, size));
  74 }
  75
  76 static inline void *
  77 malloc_zone_realloc(malloc_zone_t *zone, void *ptr, size_t size)
  78 {
  79
  80         return (realloc(ptr, size));
  81 }
  82
  83 static inline void
  84 malloc_zone_free(malloc_zone_t *zone, void *ptr)
  85 {
  86
  87         free(ptr);
  88 }
  89
  90 static inline void
  91 malloc_set_zone_name(malloc_zone_t *zone, const char *name)
  92 {
  93
  94         /* No-op. */
  95 }
  96 #endif
  97
  98 #endif /* __DISPATCH_SHIMS_MALLOC_ZONE__ */