FreeBSD/Linux Kernel Cross Reference
sys/kern/kern_types.h
1 /*
2 * Mach Operating System
3 * Copyright (c) 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 2.2 93/01/14 17:34:51 danner
30 * Created.
31 * [92/11/23 dbg]
32 *
33 */
34
35 #ifndef _KERN_KERN_TYPES_H_
36 #define _KERN_KERN_TYPES_H_
37
38 #include <mach/port.h> /* for mach_port_t */
39
40 /*
41 * Common kernel type declarations.
42 * These are handles to opaque data structures defined elsewhere.
43 *
44 * These types are recursively included in each other`s definitions.
45 * This file exists to export the common declarations to each
46 * of the definitions, and to other files that need only the
47 * type declarations.
48 */
49
50 /*
51 * Task structure, from kern/task.h
52 */
53 typedef struct task * task_t;
54 #define TASK_NULL ((task_t) 0)
55
56 typedef mach_port_t * task_array_t; /* should be task_t * */
57
58 /*
59 * Thread structure, from kern/thread.h
60 */
61 typedef struct thread * thread_t;
62 #define THREAD_NULL ((thread_t) 0)
63
64 typedef mach_port_t * thread_array_t; /* should be thread_t * */
65
66 /*
67 * Processor structure, from kern/processor.h
68 */
69 typedef struct processor * processor_t;
70 #define PROCESSOR_NULL ((processor_t) 0)
71
72 /*
73 * Processor set structure, from kern/processor.h
74 */
75 typedef struct processor_set * processor_set_t;
76 #define PROCESSOR_SET_NULL ((processor_set_t) 0)
77
78 #endif /* _KERN_KERN_TYPES_H_ */
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