FreeBSD/Linux Kernel Cross Reference
sys/kern/kern_types.h
1 /*
2 * Mach Operating System
3 * Copyright (c) 1993,1992 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the
9 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
11 *
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15 *
16 * Carnegie Mellon requests users of this software to return to
17 *
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
22 *
23 * any improvements or extensions that they make and grant Carnegie Mellon
24 * the rights to redistribute these changes.
25 */
26 /*
27 * HISTORY
28 * $Log: kern_types.h,v $
29 * Revision 2.3 93/11/17 17:13:32 dbg
30 * Added macro 'no_return' for the return type of a function that
31 * does not return.
32 * [93/05/04 dbg]
33 *
34 * Revision 2.2 93/01/14 17:34:51 danner
35 * Created.
36 * [92/11/23 dbg]
37 *
38 */
39
40 #ifndef _KERN_KERN_TYPES_H_
41 #define _KERN_KERN_TYPES_H_
42
43 #include <mach/port.h> /* for mach_port_t */
44
45 /*
46 * Common kernel type declarations.
47 * These are handles to opaque data structures defined elsewhere.
48 *
49 * These types are recursively included in each other`s definitions.
50 * This file exists to export the common declarations to each
51 * of the definitions, and to other files that need only the
52 * type declarations.
53 */
54
55 /*
56 * Task structure, from kern/task.h
57 */
58 typedef struct task * task_t;
59 #define TASK_NULL ((task_t) 0)
60
61 typedef mach_port_t * task_array_t; /* should be task_t * */
62
63 /*
64 * Thread structure, from kern/thread.h
65 */
66 typedef struct thread * thread_t;
67 #define THREAD_NULL ((thread_t) 0)
68
69 typedef mach_port_t * thread_array_t; /* should be thread_t * */
70
71 /*
72 * Processor structure, from kern/processor.h
73 */
74 typedef struct processor * processor_t;
75 #define PROCESSOR_NULL ((processor_t) 0)
76
77 /*
78 * Processor set structure, from kern/processor.h
79 */
80 typedef struct processor_set * processor_set_t;
81 #define PROCESSOR_SET_NULL ((processor_set_t) 0)
82
83 /*
84 * Return type for a function that does not return.
85 */
86 #ifdef __GNUC__
87 #define no_return void __volatile__
88 #else
89 #define no_return void
90 #endif
91
92 #endif /* _KERN_KERN_TYPES_H_ */
Cache object: 3ef25fec996200b273c3dc5542f31b7b
|