OdAsyncIORequestHandler.h

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// Copyright (C) 2002-2024, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
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// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2024 by Open Design Alliance. 
//   All rights reserved.
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// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
 
#ifndef _OD_ASYNC_IO_REQUEST_HANDLER__INCLUDED_
#define _OD_ASYNC_IO_REQUEST_HANDLER__INCLUDED_
 
#include "RootExport.h"
#include "RxObject.h"
#include "RxSystemServices.h"
#include "OdAsyncIOResult.h"
#include "OdAsyncIORequest.h"
#include "OdAsyncOpenFileRequest.h"
 
#include "TD_PackPush.h"

class ODRX_ABSTRACT FIRSTDLL_EXPORT OdAsyncIORequestHandler : public OdRxObject
{
public:
  ODRX_DECLARE_MEMBERS(OdAsyncIORequestHandler);

  virtual ~OdAsyncIORequestHandler(){}

  virtual OdUInt64 newRequestDescriptor() = 0;
  
  virtual void openFile(const OdAsyncOpenFileRequest& request) = 0;

  virtual void closeFile(OdUInt64 fileDescriptor) = 0;
  
  virtual void read(const OdAsyncIORequest& request) = 0;

  virtual void write(const OdAsyncIORequest& request) = 0;
  
  virtual OdAsyncIO::OdAsyncIOResult returnResult(OdUInt64 requestDescriptor,
    OdUInt64* pOpenedFileDescriptor = NULL,
    OdUInt8** pDataPtr = NULL, OdUInt32* pActualDataSize = NULL) = 0;

  virtual void cancel(OdUInt64 requestDescriptor) = 0;

  virtual void responseParsed(OdUInt64 requestDescriptor) = 0;
};

typedef OdSmartPtr<OdAsyncIORequestHandler> OdAsyncIORequestHandlerPtr;
 
#include "TD_PackPop.h"
 
#endif