IOPMPowerSourceList.h   [plain text]

/*
 * Copyright (c) 1998-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#include <libkern/c++/OSObject.h>
#include <IOKit/IOReturn.h>

class IOPMPowerSource;

class IOPMPowerSourceList : public OSObject
{
    OSDeclareDefaultStructors(IOPMPowerSourceList)
 private:
    // pointer to first power source in list
    IOPMPowerSource         *firstItem;

    // how many power sources are in the list
    unsigned long           length;

  public:
    void initialize(void);
    void free(void);

    unsigned long numberOfItems(void);
    IOReturn addToList(IOPMPowerSource *newPowerSource);
    IOReturn removeFromList(IOPMPowerSource *theItem);
    
    IOPMPowerSource *firstInList(void);
    IOPMPowerSource *nextInList(IOPMPowerSource *currentItem);
};