| | 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 | |
| | 29 | #include <mach/mach_types.h> |
| | 30 | #include <ipc/ipc_port.h> |
| | 31 | |
| | 32 | #include <sys/appleapiopts.h> |
| | 33 | |
| | 34 | #ifdef __APPLE_API_PRIVATE |
| | 35 | |
| | 36 | #ifdef MACH_KERNEL_PRIVATE |
| | 37 | |
| | 38 | #include <kern/lock.h> |
| | 39 | #include <mach/etap_events.h> |
| | 40 | |
| | 41 | #define LEDGER_ITEM_INFINITY (~0) |
| | 42 | |
| | 43 | struct 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 | |
| | 53 | typedef struct ledger ledger_data_t; |
| | 54 | |
| | 55 | #define ledger_lock(ledger) simple_lock(&(ledger)->lock) |
| | 56 | #define ledger_unlock(ledger) simple_unlock(&(ledger)->lock) |
| | 57 | #define ledger_lock_init(ledger) \ |
| | 58 | simple_lock_init(&(ledger)->lock, ETAP_MISC_LEDGER) |
| | 59 | |
| | 60 | extern ledger_t root_wired_ledger; |
| | 61 | extern 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 | |
| | 66 | extern void ledger_init(void); |
| | 67 | |
| | 68 | extern ipc_port_t ledger_copy(ledger_t); |
| | 69 | |
| | 70 | extern kern_return_t ledger_enter(ledger_t, ledger_item_t); |
| | 71 | |
| | 72 | #endif /* MACH_KERNEL_PRIVATE */ |
| | 73 | |
| | 74 | #endif /* __APPLE_API_PRIVATE */ |
| | 75 | |
| | 76 | extern ledger_t convert_port_to_ledger(ipc_port_t); |
| | 77 | |
| | 78 | extern ipc_port_t convert_ledger_to_port(ledger_t); |
| | 79 | |
| | 80 | #endif /* _KERN_LEDGER_H_ */ |
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