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1c79356b 1/*
91447636 2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
1c79356b 3 *
8f6c56a5 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
8f6c56a5
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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 License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
8ad349bb 24 * limitations under the License.
8f6c56a5
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25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b
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27 */
28/*
29 * @OSF_COPYRIGHT@
30 */
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31
32#ifdef MACH_KERNEL_PRIVATE
33
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34#ifndef _KERN_LEDGER_H_
35#define _KERN_LEDGER_H_
36
1c79356b 37#include <mach/mach_types.h>
9bccf70c 38
91447636 39#include <kern/kern_types.h>
9bccf70c 40#include <kern/lock.h>
91447636 41#include <ipc/ipc_types.h>
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42
43struct ledger {
44 ipc_port_t ledger_self;
45 ipc_port_t ledger_service_port;
46 ledger_item_t ledger_balance;
47 ledger_item_t ledger_limit;
48 struct ledger *ledger_ledger;
49 struct ledger *ledger_parent;
50 decl_simple_lock_data(,lock)
51};
52
53typedef struct ledger ledger_data_t;
54
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55#define ledger_lock(ledger) simple_lock(&(ledger)->lock)
56#define ledger_unlock(ledger) simple_unlock(&(ledger)->lock)
57#define ledger_lock_init(ledger) \
91447636 58 simple_lock_init(&(ledger)->lock, 0)
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59
60extern ledger_t root_wired_ledger;
61extern ledger_t root_paged_ledger;
62
63#define root_wired_ledger_port root_wired_ledger->ledger_self
64#define root_paged_ledger_port root_paged_ledger->ledger_self
65
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66extern void ledger_init(void);
67
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68extern ipc_port_t ledger_copy(ledger_t);
69
70extern kern_return_t ledger_enter(ledger_t, ledger_item_t);
9bccf70c 71
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72extern ledger_t convert_port_to_ledger(ipc_port_t);
73
74extern ipc_port_t convert_ledger_to_port(ledger_t);
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75
76#endif /* _KERN_LEDGER_H_ */
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77
78#endif /* MACH_KERNEL_PRIVATE */