/* * Copyright (c) 2001-2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the * License may not be used to create, or enable the creation or * redistribution of, unlawful or unlicensed copies of an Apple operating * system, or to circumvent, violate, or enable the circumvention or * violation of, any terms of an Apple operating system software license * agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ */ #ifndef _IOPMEVENTSOURCE_H_ #define _IOPMEVENTSOURCE_H_ #include <IOKit/IOWorkLoop.h> #include <IOKit/IOEventSource.h> // Queue of requested states typedef struct { unsigned long state; void *next; } ActivityTickleStateList; class IOPMEventSource : public IOEventSource { OSDeclareDefaultStructors(IOPMEventSource); protected: virtual bool checkForWork(void); ActivityTickleStateList *states; public: typedef void (*Action)(OSObject *owner, unsigned long state); // static initialiser static IOPMEventSource *PMEventSource(OSObject *owner, Action action); virtual bool init(OSObject *owner, Action action); // Enqueues an activityTickle request to be executed on the workloop virtual IOReturn activityTickleOccurred(unsigned long); }; #endif /* _IOPMEVENTSOURCE_H_ */