1 | /* |
2 | * Copyright (c) 2000-2004 Apple Computer, 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 | * File: kern/task_swap.c |
33 | * |
34 | * Task residency management primitives implementation. |
35 | */ |
36 | #include <mach_assert.h> |
37 | #include <task_swapper.h> |
38 | |
39 | #include <kern/spl.h> |
40 | #include <kern/queue.h> |
41 | #include <kern/host.h> |
42 | #include <kern/task.h> |
43 | #include <kern/task_swap.h> |
44 | #include <kern/thread.h> |
45 | #include <kern/host_statistics.h> |
46 | #include <kern/misc_protos.h> |
47 | #include <kern/assert.h> |
48 | #include <mach/policy.h> |
49 | |
50 | #include <ipc/ipc_port.h> /* We use something from in here */ |
51 | |
52 | /* |
53 | * task_swappable: [exported] |
54 | * |
55 | * Make a task swappable or non-swappable. If made non-swappable, |
56 | * it will be swapped in. |
57 | */ |
58 | kern_return_t |
59 | task_swappable( |
60 | host_priv_t host_priv, |
61 | task_t task, |
62 | __unused boolean_t make_swappable) |
63 | { |
64 | if (host_priv == HOST_PRIV_NULL) |
65 | return (KERN_INVALID_ARGUMENT); |
66 | |
67 | if (task == TASK_NULL) |
68 | return (KERN_INVALID_ARGUMENT); |
69 | |
70 | /* |
71 | * We don't support swapping, this call is purely advisory. |
72 | */ |
73 | return (KERN_SUCCESS); |
74 | } |
75 | |