AppleRAIDEventSource.h   [plain text]


/*
 * Copyright (c) 2001-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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. 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_HEADER_END@
 */

#ifndef _APPLERAIDEVENTSOURCE_H
#define _APPLERAIDEVENTSOURCE_H

#include "AppleRAID.h"

class AppleRAIDEventSource : public IOEventSource
{
    OSDeclareDefaultStructors(AppleRAIDEventSource);
    
    friend class AppleRAIDStorageRequest;
    
private:
    IOMedia	*doTerminateRAIDMedia;
    
protected:
    queue_head_t fCompletedHead;
    
    virtual bool checkForWork(void);
    virtual void sliceCompleteRequest(AppleRAIDMemoryDescriptor *memoryDescriptor,
                                      IOReturn status, UInt64 actualByteCount);
    
public:
    typedef void (*Action)(AppleRAID *appleRAID, AppleRAIDStorageRequest *storageRequest);
    static AppleRAIDEventSource *withAppleRAIDSet(AppleRAID *appleRAID, Action action);
    virtual bool initWithAppleRAIDSet(AppleRAID *appleRAID, Action action);
    
    virtual void terminateRAIDMedia(IOMedia *media);
    
    virtual IOStorageCompletionAction getStorageCompletionAction(void);
};


#endif /* ! _APPLERAIDEVENTSOURCE_H */