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
43enum {
44    devtimer_process_func_event_lock,
45    devtimer_process_func_event_unlock,
46};
47typedef int devtimer_process_func_event;
48
49typedef struct devtimer_s * devtimer_ref;
50typedef void (*devtimer_process_func)(devtimer_ref timer,
51				      devtimer_process_func_event event);
52typedef void (*devtimer_timeout_func)(void * arg0, void * arg1, void * arg2);
53
54int
55devtimer_valid(devtimer_ref timer);
56
57void
58devtimer_retain(devtimer_ref timer);
59
60void *
61devtimer_arg0(devtimer_ref timer);
62
63devtimer_ref
64devtimer_create(devtimer_process_func process_func, void * arg0);
65
66void
67devtimer_invalidate(devtimer_ref timer);
68
69void
70devtimer_release(devtimer_ref timer);
71
72void
73devtimer_set_absolute(devtimer_ref t,
74		      struct timeval abs_time,
75		      devtimer_timeout_func func,
76		      void * arg1, void * arg2);
77
78void
79devtimer_set_relative(devtimer_ref t,
80		      struct timeval rel_time,
81		      devtimer_timeout_func func,
82		      void * arg1, void * arg2);
83void
84devtimer_cancel(devtimer_ref t);
85
86int
87devtimer_enabled(devtimer_ref t);
88
89struct timeval
90devtimer_current_time(void);
91
92int32_t
93devtimer_current_secs(void);
94
95#endif /* _NET_DEVTIMER_H */
96