osfmk/kern/sync_lock.c

   1 /*
   2  * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   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
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  *
  31  */
  32 /*
  33  *      File:   kern/sync_lock.c
  34  *      Author: Joseph CaraDonna
  35  *
  36  *      Contains RT distributed lock synchronization services.
  37  */
  38
  39 #include <mach/mach_types.h>
  40 #include <mach/lock_set_server.h>
  41 #include <mach/task_server.h>
  42
  43 #include <kern/misc_protos.h>
  44 #include <kern/kalloc.h>
  45 #include <kern/sync_lock.h>
  46 #include <kern/sched_prim.h>
  47 #include <kern/ipc_kobject.h>
  48 #include <kern/ipc_sync.h>
  49 #include <kern/thread.h>
  50 #include <kern/task.h>
  51
  52 #include <ipc/ipc_port.h>
  53 #include <ipc/ipc_space.h>
  54 #include <libkern/OSAtomic.h>
  55
  56
  57
  58 /*
  59  *      OBSOLETE: lock set routines are obsolete
  60  */
  61 kern_return_t
  62 lock_set_create (
  63         __unused task_t         task,
  64         __unused lock_set_t     *new_lock_set,
  65         __unused int            n_ulocks,
  66         __unused int            policy)
  67 {
  68         return KERN_FAILURE;
  69 }
  70
  71 kern_return_t
  72 lock_set_destroy (
  73         __unused task_t task,
  74         __unused lock_set_t lock_set)
  75 {
  76         return KERN_FAILURE;
  77 }
  78
  79 kern_return_t
  80 lock_acquire (
  81         __unused lock_set_t lock_set,
  82         __unused int lock_id)
  83 {
  84         return KERN_FAILURE;
  85 }
  86
  87 kern_return_t
  88 lock_release (
  89         __unused lock_set_t lock_set,
  90         __unused int lock_id)
  91 {
  92         return KERN_FAILURE;
  93 }
  94
  95 kern_return_t
  96 lock_try (
  97         __unused lock_set_t lock_set,
  98         __unused int lock_id)
  99 {
 100         return KERN_FAILURE;
 101 }
 102
 103 kern_return_t
 104 lock_make_stable (
 105         __unused lock_set_t lock_set,
 106         __unused int lock_id)
 107 {
 108         return KERN_FAILURE;
 109 }
 110
 111 kern_return_t
 112 lock_handoff (
 113         __unused lock_set_t lock_set,
 114         __unused int lock_id)
 115 {
 116         return KERN_FAILURE;
 117 }
 118
 119 kern_return_t
 120 lock_handoff_accept (
 121         __unused lock_set_t lock_set,
 122         __unused int lock_id)
 123 {
 124         return KERN_FAILURE;
 125 }
 126
 127 void
 128 lock_set_reference(
 129         __unused lock_set_t lock_set)
 130 {
 131         return;
 132 }
 133
 134 void
 135 lock_set_dereference(
 136         __unused lock_set_t lock_set)
 137 {
 138         return;
 139 }
 140