1/* 2 * Copyright (c) 2001-2007 Apple 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#include "AppleRAID.h" 24 25#undef super 26#define super IOMemoryDescriptor 27OSDefineMetaClassAndAbstractStructors(AppleRAIDMemoryDescriptor, IOMemoryDescriptor); 28 29bool AppleRAIDMemoryDescriptor::initWithStorageRequest(AppleRAIDStorageRequest *storageRequest, UInt32 memberIndex) 30{ 31 if (!super::init()) return false; 32 33 mdMemoryDescriptorLock = IOLockAlloc(); 34 if (mdMemoryDescriptorLock == 0) return false; 35 36 mdStorageRequest = storageRequest; 37 38 mdMemberIndex = memberIndex; 39 return true; 40} 41 42void AppleRAIDMemoryDescriptor::free(void) 43{ 44 IOLockFree(mdMemoryDescriptorLock); 45 46 super::free(); 47} 48 49IOReturn AppleRAIDMemoryDescriptor::prepare(IODirection forDirection) 50{ 51 IOReturn result; 52 53 IOLockLock(mdMemoryDescriptorLock); 54 result = mdMemoryDescriptor->prepare(forDirection); 55 IOLockUnlock(mdMemoryDescriptorLock); 56 57 return result; 58} 59 60IOReturn AppleRAIDMemoryDescriptor::complete(IODirection forDirection) 61{ 62 IOReturn result; 63 64 IOLockLock(mdMemoryDescriptorLock); 65 result = mdMemoryDescriptor->complete(forDirection); 66 IOLockUnlock(mdMemoryDescriptorLock); 67 68 return result; 69} 70 71