libkern/libkern/OSMalloc.h

   1 /*
   2  * Copyright (c) 2003-2004 Apple Computer, 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
  24 #ifndef LIBKERN_OSMALLOC_h
  25 #define LIBKERN_OSMALLOC_h
  26
  27 #include <sys/cdefs.h>
  28
  29 __BEGIN_DECLS
  30
  31 #include <stdint.h>
  32 #ifdef  MACH_KERNEL_PRIVATE
  33 #include <kern/queue.h>
  34 #endif
  35
  36 #ifdef  MACH_KERNEL_PRIVATE
  37
  38 #define OSMT_MAX_NAME   64
  39
  40 typedef struct  _OSMallocTag_ {
  41         queue_chain_t   OSMT_link;
  42         uint32_t                OSMT_refcnt;
  43         uint32_t                OSMT_state;
  44         uint32_t                OSMT_attr;
  45         char                    OSMT_name[OSMT_MAX_NAME];
  46 } *OSMallocTag;
  47
  48 #define OSMT_VALID_MASK         0xFFFF0000
  49 #define OSMT_VALID              0xDEAB0000
  50 #define OSMT_RELEASED           0x00000001
  51
  52 #define OSMT_ATTR_PAGEABLE      0x01
  53 #else
  54 typedef struct __OSMallocTag__  *OSMallocTag, *OSMallocTag_t;
  55 #endif
  56
  57 #define  OSMT_DEFAULT   0x00
  58 #define  OSMT_PAGEABLE  0x01
  59
  60 extern OSMallocTag              OSMalloc_Tagalloc(const char * str, uint32_t flags);
  61
  62 extern void                             OSMalloc_Tagfree(OSMallocTag tag);
  63
  64 extern void *                   OSMalloc(uint32_t size, OSMallocTag tag);
  65
  66 extern void *                   OSMalloc_nowait(uint32_t size, OSMallocTag tag);
  67
  68 extern void *                   OSMalloc_noblock(uint32_t size, OSMallocTag tag);
  69
  70 extern void                             OSFree(void * addr, uint32_t size, OSMallocTag tag);
  71
  72 __END_DECLS
  73
  74 #endif  /* LIBKERN_OSMALLOC_h */