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1c79356b 1/*
91447636 2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
1c79356b 3 *
8ad349bb 4 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b 5 *
8ad349bb
A
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. The rights granted to you under the
10 * License may not be used to create, or enable the creation or
11 * redistribution of, unlawful or unlicensed copies of an Apple operating
12 * system, or to circumvent, violate, or enable the circumvention or
13 * violation of, any terms of an Apple operating system software license
14 * agreement.
15 *
16 * Please obtain a copy of the License at
17 * http://www.opensource.apple.com/apsl/ and read it before using this
18 * file.
19 *
20 * The Original Code and all software distributed under the License are
21 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
22 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
23 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
25 * Please see the License for the specific language governing rights and
26 * limitations under the License.
27 *
28 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
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29 */
30/*
31 * @OSF_COPYRIGHT@
32 */
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33
34#ifdef MACH_KERNEL_PRIVATE
35
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36#ifndef _KERN_LEDGER_H_
37#define _KERN_LEDGER_H_
38
1c79356b 39#include <mach/mach_types.h>
9bccf70c 40
91447636 41#include <kern/kern_types.h>
9bccf70c 42#include <kern/lock.h>
91447636 43#include <ipc/ipc_types.h>
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44
45struct ledger {
46 ipc_port_t ledger_self;
47 ipc_port_t ledger_service_port;
48 ledger_item_t ledger_balance;
49 ledger_item_t ledger_limit;
50 struct ledger *ledger_ledger;
51 struct ledger *ledger_parent;
52 decl_simple_lock_data(,lock)
53};
54
55typedef struct ledger ledger_data_t;
56
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57#define ledger_lock(ledger) simple_lock(&(ledger)->lock)
58#define ledger_unlock(ledger) simple_unlock(&(ledger)->lock)
59#define ledger_lock_init(ledger) \
91447636 60 simple_lock_init(&(ledger)->lock, 0)
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61
62extern ledger_t root_wired_ledger;
63extern ledger_t root_paged_ledger;
64
65#define root_wired_ledger_port root_wired_ledger->ledger_self
66#define root_paged_ledger_port root_paged_ledger->ledger_self
67
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68extern void ledger_init(void);
69
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70extern ipc_port_t ledger_copy(ledger_t);
71
72extern kern_return_t ledger_enter(ledger_t, ledger_item_t);
9bccf70c 73
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74extern ledger_t convert_port_to_ledger(ipc_port_t);
75
76extern ipc_port_t convert_ledger_to_port(ledger_t);
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77
78#endif /* _KERN_LEDGER_H_ */
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79
80#endif /* MACH_KERNEL_PRIVATE */