devtimer.h source code [xnu/bsd/net/devtimer.h]

1	/*
2	* Copyright (c) 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	/*
30	* devtimer.h
31	* - timer source based on <kern/thread_call.h>
32	*/
33
34
35	#ifndef _NET_DEVTIMER_H
36	#define _NET_DEVTIMER_H
37
38	#include <sys/types.h>
39	#include <sys/systm.h>
40
41	#define DEVTIMER_USECS_PER_SEC (1000 * 1000)
42
43	enum {
44	devtimer_process_func_event_lock,
45	devtimer_process_func_event_unlock,
46	};
47	typedef int devtimer_process_func_event;
48
49	typedef struct devtimer_s * devtimer_ref;
50	typedef void (*devtimer_process_func)(devtimer_ref timer,
51	devtimer_process_func_event event);
52	typedef void (devtimer_timeout_func)(void* * arg0, void * arg1, void * arg2);
53
54	int
55	devtimer_valid(devtimer_ref timer);
56
57	void
58	devtimer_retain(devtimer_ref timer);
59
60	void *
61	devtimer_arg0(devtimer_ref timer);
62
63	devtimer_ref
64	devtimer_create(devtimer_process_func process_func, void * arg0);
65
66	void
67	devtimer_invalidate(devtimer_ref timer);
68
69	void
70	devtimer_release(devtimer_ref timer);
71
72	void
73	devtimer_set_absolute(devtimer_ref t,
74	struct timeval abs_time,
75	devtimer_timeout_func func,
76	void * arg1, void * arg2);
77
78	void
79	devtimer_set_relative(devtimer_ref t,
80	struct timeval rel_time,
81	devtimer_timeout_func func,
82	void * arg1, void * arg2);
83	void
84	devtimer_cancel(devtimer_ref t);
85
86	int
87	devtimer_enabled(devtimer_ref t);
88
89	struct timeval
90	devtimer_current_time(void);
91
92	int32_t
93	devtimer_current_secs(void);
94
95	#endif /* _NET_DEVTIMER_H */
96

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