ComReader.h

00001 //
00002 // Copyright(C) 2005--2006 Institute of Computing Tech, Chinese Academy of Sciences. 
00003 // All rights reserved.
00004 // This file is part of FirteX (www.firtex.org)
00005 //
00006 // Use of the FirteX is subject to the terms of the software license set forth in 
00007 // the LICENSE file included with this software, and also available at
00008 // http://www.firtex.org/license.html
00009 //
00010 // Author       : 郭瑞杰(GuoRuijie)
00011 // Email        : ruijieguo@software.ict.ac.cn,ruijieguo@gmail.com
00012 // Created      : 2006/7/9
00013 //
00014 #ifndef __COMREADER_H
00015 #define __COMREADER_H
00016 
00017 #include "FirteXCOM.h"
00018 #include "ComObject.h"
00019 #include "../utility/Reader.h"
00020 
00021 #if _MSC_VER > 1000
00022 #pragma once
00023 #endif // _MSC_VER > 1000
00024 
00025 namespace firtex
00026 {
00027         namespace plugin
00028         {
00029                 class CComReader :      public CComObject
00030                 {
00031                 public:
00032                         CComReader(firtex::utility::CReader* pReader);
00033                         virtual ~CComReader(void);
00034                 public:
00035                         static IReader*         wrap(firtex::utility::CReader* pReader);
00036                         static CReader*         unwrap(IReader* pInterface);
00037                 public:
00038                         BEGIN_INTERFACE_PART(Reader, IReader)                           
00039                                 FX_STDMETHOD(read)(/* [in] [retval] */byte* data,/* [in] */int32_t length);
00040                                 FX_STDMETHOD(readWithNoCopy)(/* [out] [retval] */byte** data,/* [out] [retval] */int32_t* length);
00041                                 FX_STDMETHOD(close)();
00042                                 FX_STDMETHOD(getFilePointer)(/* [out] [retval] */int64_t* position);
00043                                 FX_STDMETHOD(seek)(/* [in] */int64_t position);
00044                                 FX_STDMETHOD(isEof)(/* [out] [retval] */firtex::com::bool_t* bEof);
00045                                 FX_STDMETHOD(length)(/* [out] [retval] */int64_t* len);
00046                         END_INTERFACE_PART(Reader)
00047 
00048                 private:
00049                         firtex::utility::CReader*       m_pReader;
00050                 };
00051         }
00052 }
00053 
00054 #endif