1/*
2 * Copyright (c) 2019-2019 Apple 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#ifndef _IOKIT_UIODISPATCHSOURCE_H
30#define _IOKIT_UIODISPATCHSOURCE_H
31
32#include <DriverKit/OSObject.iig>
33
34
35typedef void (^IODispatchSourceCancelHandler)(void);
36
37/*!
38 * @class IODispatchSource
39
40 * @abstract
41 * IODispatchSource common base class for dispatch sources.
42 */
43
44class NATIVE KERNEL IODispatchSource : public OSObject
45{
46public:
47
48	virtual bool
49	init() override;
50
51	virtual void
52	free() override;
53
54	virtual kern_return_t
55	Cancel(IODispatchSourceCancelHandler handler) = 0;
56
57	virtual kern_return_t
58	SetEnableWithCompletion(
59		bool enable,
60		IODispatchSourceCancelHandler handler) = 0;
61
62	virtual kern_return_t
63	CheckForWork(bool synchronous) INVOKEREPLY = 0;
64
65	virtual kern_return_t
66	SetEnable(bool enable) LOCAL;
67};
68
69#endif /* ! _IOKIT_UIODISPATCHSOURCE_H */
70