projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * The contents of this file constitute Original Code as defined in and | |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 11 | * | |
| 12 | * This Original Code and all software distributed under the License are | |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 19 | * | |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | Copyright (c) 1998 Apple Computer, Inc. All rights reserved. | |
| 24 | ||
| 25 | HISTORY | |
| 26 | 1998-7-13 Godfrey van der Linden(gvdl) | |
| 27 | Created. | |
| 28 | ]*/ | |
| 29 | #include <IOKit/IOLib.h> | |
| 30 | ||
| 31 | #include <IOKit/IOEventSource.h> | |
| 32 | #include <IOKit/IOWorkLoop.h> | |
| 33 | ||
| 34 | #define super OSObject | |
| 35 | ||
| 36 | OSDefineMetaClassAndAbstractStructors(IOEventSource, OSObject) | |
| 37 | OSMetaClassDefineReservedUnused(IOEventSource, 0); | |
| 38 | OSMetaClassDefineReservedUnused(IOEventSource, 1); | |
| 39 | OSMetaClassDefineReservedUnused(IOEventSource, 2); | |
| 40 | OSMetaClassDefineReservedUnused(IOEventSource, 3); | |
| 41 | OSMetaClassDefineReservedUnused(IOEventSource, 4); | |
| 42 | OSMetaClassDefineReservedUnused(IOEventSource, 5); | |
| 43 | OSMetaClassDefineReservedUnused(IOEventSource, 6); | |
| 44 | OSMetaClassDefineReservedUnused(IOEventSource, 7); | |
| 45 | ||
| 46 | bool IOEventSource::init(OSObject *inOwner, | |
| 47 | Action inAction = 0) | |
| 48 | { | |
| 49 | if (!inOwner) | |
| 50 | return false; | |
| 51 | ||
| 52 | owner = inOwner; | |
| 53 | ||
| 54 | if ( !super::init() ) | |
| 55 | return false; | |
| 56 | ||
| 57 | (void) setAction(inAction); | |
| 58 | enabled = true; | |
| 59 | ||
| 60 | return true; | |
| 61 | } | |
| 62 | ||
| 63 | IOEventSource::Action IOEventSource::getAction () const { return action; }; | |
| 64 | ||
| 65 | void IOEventSource::setAction(Action inAction) | |
| 66 | { | |
| 67 | action = inAction; | |
| 68 | } | |
| 69 | ||
| 70 | IOEventSource *IOEventSource::getNext() const { return eventChainNext; }; | |
| 71 | ||
| 72 | void IOEventSource::setNext(IOEventSource *inNext) | |
| 73 | { | |
| 74 | eventChainNext = inNext; | |
| 75 | } | |
| 76 | ||
| 77 | void IOEventSource::enable() | |
| 78 | { | |
| 79 | enabled = true; | |
| 80 | if (workLoop) | |
| 81 | return signalWorkAvailable(); | |
| 82 | } | |
| 83 | ||
| 84 | void IOEventSource::disable() | |
| 85 | { | |
| 86 | enabled = false; | |
| 87 | } | |
| 88 | ||
| 89 | bool IOEventSource::isEnabled() const | |
| 90 | { | |
| 91 | return enabled; | |
| 92 | } | |
| 93 | ||
| 94 | void IOEventSource::setWorkLoop(IOWorkLoop *inWorkLoop) | |
| 95 | { | |
| 96 | if ( !inWorkLoop ) | |
| 97 | disable(); | |
| 98 | workLoop = inWorkLoop; | |
| 99 | } | |
| 100 | ||
| 101 | IOWorkLoop *IOEventSource::getWorkLoop() const | |
| 102 | { | |
| 103 | return workLoop; | |
| 104 | } | |
| 105 | ||
| 106 | bool IOEventSource::onThread() const | |
| 107 | { | |
| 108 | return (workLoop != 0) && workLoop->onThread(); | |
| 109 | } |