[apple/xnu.git] / osfmk / kern / kalloc.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */

#ifdef	KERNEL_PRIVATE

#ifndef	_KERN_KALLOC_H_
#define _KERN_KALLOC_H_

#include <mach/machine/vm_types.h>
#include <sys/cdefs.h>

__BEGIN_DECLS

extern void *kalloc(vm_size_t	size);

extern void *kalloc_noblock(vm_size_t	size);

extern void *kget(vm_size_t	size);

extern void kfree(void		*data,
		  vm_size_t	size);

__END_DECLS

#ifdef	MACH_KERNEL_PRIVATE

#include <kern/lock.h>

#define KALLOC_MINSIZE		16

extern void		kalloc_init(void);

extern void		krealloc(void		**addrp,
				 vm_size_t	old_size,
				 vm_size_t	new_size,
				 simple_lock_t	lock);

extern void		kalloc_fake_zone_info(
				int		*count,
				vm_size_t	*cur_size,
				vm_size_t	*max_size,
				vm_size_t	*elem_size,
				vm_size_t	*alloc_size,
				int		*collectable,
				int		*exhaustable);

extern vm_size_t kalloc_max_prerounded;

#endif	/* MACH_KERNEL_PRIVATE */

#endif	/* _KERN_KALLOC_H_ */

#endif	/* KERNEL_PRIVATE */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
1c79356b	3	*
6601e61a A	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
8f6c56a5 A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
6601e61a A	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.
8f6c56a5	19	*
6601e61a	20	* @APPLE_LICENSE_HEADER_END@
1c79356b A	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	*/
1c79356b	50
91447636 A	51	#ifdef KERNEL_PRIVATE
91447636 A	52
1c79356b A	53	#ifndef _KERN_KALLOC_H_
	54	#define _KERN_KALLOC_H_
	55
1c79356b	56	#include <mach/machine/vm_types.h>
91447636	57	#include <sys/cdefs.h>
1c79356b	58
91447636	59	__BEGIN_DECLS
1c79356b	60
91447636	61	extern void *kalloc(vm_size_t size);
1c79356b	62
91447636	63	extern void *kalloc_noblock(vm_size_t size);
1c79356b	64
91447636	65	extern void *kget(vm_size_t size);
1c79356b	66
91447636 A	67	extern void kfree(void *data,
91447636 A	68	vm_size_t size);
9bccf70c	69
91447636	70	__END_DECLS
9bccf70c	71
91447636	72	#ifdef MACH_KERNEL_PRIVATE
1c79356b	73
1c79356b A	74	#include <kern/lock.h>
1c79356b A	75
91447636 A	76	#define KALLOC_MINSIZE 16
91447636 A	77
9bccf70c	78	extern void kalloc_init(void);
1c79356b	79
91447636 A	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);
1c79356b	93
91447636	94	extern vm_size_t kalloc_max_prerounded;
1c79356b	95
91447636	96	#endif /* MACH_KERNEL_PRIVATE */
9bccf70c	97
1c79356b	98	#endif /* _KERN_KALLOC_H_ */
91447636 A	99
91447636 A	100	#endif /* KERNEL_PRIVATE */