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 | * Mach Operating System |
33 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University |
34 | * All Rights Reserved. |
35 | * |
36 | * Permission to use, copy, modify and distribute this software and its |
37 | * documentation is hereby granted, provided that both the copyright |
38 | * notice and this permission notice appear in all copies of the |
39 | * software, derivative works or modified versions, and any portions |
40 | * thereof, and that both notices appear in supporting documentation. |
41 | * |
42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
45 | * |
46 | * Carnegie Mellon requests users of this software to return to |
47 | * |
48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
49 | * School of Computer Science |
50 | * Carnegie Mellon University |
51 | * Pittsburgh PA 15213-3890 |
52 | * |
53 | * any improvements or extensions that they make and grant Carnegie Mellon |
54 | * the rights to redistribute these changes. |
55 | */ |
56 | /* |
57 | */ |
58 | /* |
59 | * File: ipc/ipc_port.h |
60 | * Author: Rich Draves |
61 | * Date: 1989 |
62 | * |
63 | * Implementation specific complement to mach/port.h. |
64 | */ |
65 | |
66 | #ifndef _IPC_PORT_H_ |
67 | #define _IPC_PORT_H_ |
68 | |
69 | #include <mach/port.h> |
70 | #include <ipc/ipc_space.h> |
71 | |
72 | #define MACH_PORT_NGEN(name) MACH_PORT_MAKE(0, MACH_PORT_GEN(name)) |
73 | |
74 | /* |
75 | * Typedefs for code cleanliness. These must all have |
76 | * the same (unsigned) type as mach_port_name_t. |
77 | */ |
78 | |
79 | |
80 | #define MACH_PORT_UREFS_MAX ((mach_port_urefs_t) ((1 << 16) - 1)) |
81 | |
82 | #define MACH_PORT_UREFS_OVERFLOW(urefs, delta) \ |
83 | (((delta) > 0) && \ |
84 | ((((urefs) + (delta)) <= (urefs)) || \ |
85 | (((urefs) + (delta)) >= MACH_PORT_UREFS_MAX))) |
86 | |
87 | #define MACH_PORT_UREFS_UNDERFLOW(urefs, delta) \ |
88 | (((delta) < 0) && (((mach_port_urefs_t)-(delta)) > (urefs))) |
89 | |
90 | __BEGIN_DECLS |
91 | extern void mach_port_guard_exception( |
92 | mach_port_name_t name, |
93 | uint64_t inguard, |
94 | uint64_t portguard, |
95 | unsigned reason); |
96 | |
97 | extern void mach_port_guard_exception_immovable( |
98 | ipc_space_t space, |
99 | mach_port_name_t name, |
100 | mach_port_t port, |
101 | uint64_t portguard); |
102 | |
103 | extern void mach_port_guard_exception_pinned( |
104 | ipc_space_t space, |
105 | mach_port_name_t name, |
106 | __unused mach_port_t port, |
107 | uint64_t portguard); |
108 | __END_DECLS |
109 | |
110 | #endif /* _IPC_PORT_H_ */ |
111 | |