libkern/libkern/OSMalloc.h

   1 /*
   2  * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #ifndef LIBKERN_OSMALLOC_h
  24 #define LIBKERN_OSMALLOC_h
  25
  26 #include <sys/cdefs.h>
  27
  28 __BEGIN_DECLS
  29
  30 #include <stdint.h>
  31 #ifdef  MACH_KERNEL_PRIVATE
  32 #include <kern/queue.h>
  33 #endif
  34
  35 #ifdef  MACH_KERNEL_PRIVATE
  36
  37 #define OSMT_MAX_NAME   64
  38
  39 typedef struct  _OSMallocTag_ {
  40         queue_chain_t   OSMT_link;
  41         uint32_t                OSMT_refcnt;
  42         uint32_t                OSMT_state;
  43         uint32_t                OSMT_attr;
  44         char                    OSMT_name[OSMT_MAX_NAME];
  45 } *OSMallocTag;
  46
  47 #define OSMT_VALID_MASK         0xFFFF0000
  48 #define OSMT_VALID              0xDEAB0000
  49 #define OSMT_RELEASED           0x00000001
  50
  51 #define OSMT_ATTR_PAGEABLE      0x01
  52 #else
  53 typedef struct __OSMallocTag__  *OSMallocTag, *OSMallocTag_t;
  54 #endif
  55
  56 #define  OSMT_DEFAULT   0x00
  57 #define  OSMT_PAGEABLE  0x01
  58
  59 extern OSMallocTag              OSMalloc_Tagalloc(const char * str, uint32_t flags);
  60
  61 extern void                             OSMalloc_Tagfree(OSMallocTag tag);
  62
  63 extern void *                   OSMalloc(uint32_t size, OSMallocTag tag);
  64
  65 extern void *                   OSMalloc_nowait(uint32_t size, OSMallocTag tag);
  66
  67 extern void *                   OSMalloc_noblock(uint32_t size, OSMallocTag tag);
  68
  69 extern void                             OSFree(void * addr, uint32_t size, OSMallocTag tag);
  70
  71 __END_DECLS
  72
  73 #endif  /* LIBKERN_OSMALLOC_h */