osfmk/kern/kalloc.h

   1 /*
   2  * Copyright (c) 2000-2005 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  * @OSF_COPYRIGHT@
  24  */
  25 /*
  26  * Mach Operating System
  27  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  28  * All Rights Reserved.
  29  *
  30  * Permission to use, copy, modify and distribute this software and its
  31  * documentation is hereby granted, provided that both the copyright
  32  * notice and this permission notice appear in all copies of the
  33  * software, derivative works or modified versions, and any portions
  34  * thereof, and that both notices appear in supporting documentation.
  35  *
  36  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  37  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  38  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  39  *
  40  * Carnegie Mellon requests users of this software to return to
  41  *
  42  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  43  *  School of Computer Science
  44  *  Carnegie Mellon University
  45  *  Pittsburgh PA 15213-3890
  46  *
  47  * any improvements or extensions that they make and grant Carnegie Mellon
  48  * the rights to redistribute these changes.
  49  */
  50
  51 #ifdef  KERNEL_PRIVATE
  52
  53 #ifndef _KERN_KALLOC_H_
  54 #define _KERN_KALLOC_H_
  55
  56 #include <mach/machine/vm_types.h>
  57 #include <sys/cdefs.h>
  58
  59 __BEGIN_DECLS
  60
  61 extern void *kalloc(vm_size_t   size);
  62
  63 extern void *kalloc_noblock(vm_size_t   size);
  64
  65 extern void *kget(vm_size_t     size);
  66
  67 extern void kfree(void          *data,
  68                   vm_size_t     size);
  69
  70 __END_DECLS
  71
  72 #ifdef  MACH_KERNEL_PRIVATE
  73
  74 #include <kern/lock.h>
  75
  76 #define KALLOC_MINSIZE          16
  77
  78 extern void             kalloc_init(void);
  79
  80 extern void             krealloc(void           **addrp,
  81                                  vm_size_t      old_size,
  82                                  vm_size_t      new_size,
  83                                  simple_lock_t  lock);
  84
  85 extern void             kalloc_fake_zone_info(
  86                                 int             *count,
  87                                 vm_size_t       *cur_size,
  88                                 vm_size_t       *max_size,
  89                                 vm_size_t       *elem_size,
  90                                 vm_size_t       *alloc_size,
  91                                 int             *collectable,
  92                                 int             *exhaustable);
  93
  94 extern vm_size_t kalloc_max_prerounded;
  95
  96 #endif  /* MACH_KERNEL_PRIVATE */
  97
  98 #endif  /* _KERN_KALLOC_H_ */
  99
 100 #endif  /* KERNEL_PRIVATE */