iokit/IOKit/pwr_mgt/IOPMinformee.h

   1 /*
   2  * Copyright (c) 1998-2007 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 #ifndef _IOKIT_IOPMINFORMEE_H
  29 #define _IOKIT_IOPMINFORMEE_H
  30
  31 #include <IOKit/IOService.h>
  32 #include <IOKit/IOReturn.h>
  33
  34 class IOPMinformee : public OSObject
  35 {
  36     OSDeclareDefaultStructors(IOPMinformee)
  37     friend class IOPMinformeeList;
  38
  39 public:
  40     static IOPMinformee * withObject( IOService * theObject );
  41
  42     void initialize( IOService * theObject );
  43
  44     void free( void );
  45
  46 public:
  47     IOService *     whatObject;     // interested driver
  48     int32_t         timer;          // -1, 0, or positive number of ticks
  49     IOPMinformee *  nextInList;     // linkage pointer
  50     AbsoluteTime    startTime;      // start time of last inform
  51     bool            active;         // enable flag
  52 };
  53
  54 #endif /* !_IOKIT_IOPMINFORMEE_H */