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Annotation of XNU/osfmk/kern/ledger.h, revision 1.1.1.1

1.1       root        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_ */

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