projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 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 | #ifndef _KERN_LEDGER_H_ | |
| 26 | #define _KERN_LEDGER_H_ | |
| 27 | ||
| 28 | #include <kern/lock.h> | |
| 29 | #include <ipc/ipc_port.h> | |
| 30 | #include <mach/mach_types.h> | |
| 31 | ||
| 32 | #define LEDGER_ITEM_INFINITY (~0) | |
| 33 | ||
| 34 | struct ledger { | |
| 35 | ipc_port_t ledger_self; | |
| 36 | ipc_port_t ledger_service_port; | |
| 37 | ledger_item_t ledger_balance; | |
| 38 | ledger_item_t ledger_limit; | |
| 39 | struct ledger *ledger_ledger; | |
| 40 | struct ledger *ledger_parent; | |
| 41 | decl_simple_lock_data(,lock) | |
| 42 | }; | |
| 43 | ||
| 44 | typedef struct ledger ledger_data_t; | |
| 45 | ||
| 46 | #define LEDGER_NULL ((ledger_t)0) | |
| 47 | ||
| 48 | #define ledger_lock(ledger) simple_lock(&(ledger)->lock) | |
| 49 | #define ledger_unlock(ledger) simple_unlock(&(ledger)->lock) | |
| 50 | #define ledger_lock_init(ledger) \ | |
| 51 | simple_lock_init(&(ledger)->lock, ETAP_MISC_LEDGER) | |
| 52 | ||
| 53 | extern ledger_t root_wired_ledger; | |
| 54 | extern ledger_t root_paged_ledger; | |
| 55 | ||
| 56 | #define root_wired_ledger_port root_wired_ledger->ledger_self | |
| 57 | #define root_paged_ledger_port root_paged_ledger->ledger_self | |
| 58 | ||
| 59 | extern ipc_port_t convert_ledger_to_port(ledger_t); | |
| 60 | extern ipc_port_t ledger_copy(ledger_t); | |
| 61 | ||
| 62 | extern kern_return_t ledger_enter(ledger_t, ledger_item_t); | |
| 63 | extern void ledger_init(void); | |
| 64 | ||
| 65 | #endif /* _KERN_LEDGER_H_ */ |