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#ifndef _APPLERAIDEVENTSOURCE_H
24#define _APPLERAIDEVENTSOURCE_H
25
26class AppleRAIDSet;
27
28class AppleRAIDEventSource : public IOEventSource
29{
30    OSDeclareDefaultStructors(AppleRAIDEventSource);
31
32protected:
33    queue_head_t fCompletedHead;
34
35    virtual bool checkForWork(void);
36
37public:
38    typedef void (*Action)(AppleRAIDSet * appleRAID, AppleRAIDStorageRequest * storageRequest);
39    static AppleRAIDEventSource * withAppleRAIDSet(AppleRAIDSet *appleRAID, Action action);
40    virtual bool initWithAppleRAIDSet(AppleRAIDSet *appleRAID, Action action);
41
42    virtual void completeRequest(AppleRAIDMemoryDescriptor * memoryDescriptor,
43				 IOReturn status, UInt64 actualByteCount);
44    virtual void completeRequestLVG(AppleLVMMemoryDescriptor * memoryDescriptor,
45				    IOReturn status, UInt64 actualByteCount);
46
47    virtual IOStorageCompletionAction getStorageCompletionAction(void);
48    virtual IOStorageCompletionAction getStorageCompletionActionLVG(void);
49};
50
51
52#endif /* ! _APPLERAIDEVENTSOURCE_H */
53