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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /*
26: * Mach Operating System
27: * Copyright (c) 1989 Carnegie-Mellon University
28: * Copyright (c) 1988 Carnegie-Mellon University
29: * Copyright (c) 1987 Carnegie-Mellon University
30: * All rights reserved. The CMU software License Agreement specifies
31: * the terms and conditions for use and redistribution.
32: */
33: /*
34: * File: sched_prim.h
35: * Author: David Golub
36: *
37: * Scheduling primitive definitions file
38: *
39: */
40:
41: #ifndef _KERN_INTERNAL_SCHED_PRIM_H_
42: #define _KERN_INTERNAL_SCHED_PRIM_H_
43:
44: /*
45: * Possible results of assert_wait - returned in
46: * current_thread()->wait_result.
47: */
48: #define THREAD_AWAKENED 0 /* normal wakeup */
49: #define THREAD_TIMED_OUT 1 /* timeout expired */
50: #define THREAD_INTERRUPTED 2 /* interrupted by clear_wait */
51: #define THREAD_SHOULD_TERMINATE 3 /* thread should terminate */
52: #define THREAD_RESTART 4 /* restart operation entirely */
53:
54: /*
55: * Exported interface to sched_prim.c
56: */
57:
58: extern void sched_init();
59: extern void assert_wait();
60: extern void clear_wait();
61: extern void thread_sleep();
62: extern void thread_wakeup(); /* for function pointers */
63: extern void thread_wakeup_prim();
64: extern void thread_block();
65: extern void thread_run();
66: extern void thread_set_timeout();
67: extern void thread_setrun();
68: extern int thread_wait_result();
69:
70: /*
71: * Routines defined as macros
72: */
73:
74: #define thread_wakeup(x) \
75: thread_wakeup_prim((x), FALSE, THREAD_AWAKENED)
76: #define thread_wakeup_with_result(x, z) \
77: thread_wakeup_prim((x), FALSE, (z))
78: #define thread_wakeup_one(x) \
79: thread_wakeup_prim((x), TRUE, THREAD_AWAKENED)
80:
81: #endif /* _KERN_INTERNAL_SCHED_PRIM_H_ */
82:
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