159 lines
4 KiB
C++
159 lines
4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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/**
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* hwpio.h
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* (C) 1999 Mizi Research, All rights are reserved
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*/
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#ifndef _HIODEV_H_
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#define _HIODEV_H_
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#include <stdio.h>
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#include "hwplib.h"
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/**
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* @short Abstract IO class
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*/
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class DLLEXPORT HIODev
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{
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protected:
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bool compressed;
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virtual void init();
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public:
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HIODev();
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virtual ~HIODev();
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virtual bool open() = 0;
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virtual void close() = 0;
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virtual void flush() = 0;
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virtual int state() const = 0;
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/* gzip routine wrapper */
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virtual bool setCompressed( bool ) = 0;
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virtual int read1b() = 0;
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virtual int read2b() = 0;
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virtual long read4b() = 0;
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virtual int readBlock( void *ptr, int size ) = 0;
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virtual int skipBlock( int size ) = 0;
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virtual int read1b( void *ptr, int nmemb );
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virtual int read2b( void *ptr, int nmemb );
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virtual int read4b( void *ptr, int nmemb );
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};
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struct gz_stream;
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/* 파일 입출력 장치 */
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/**
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* This controls the HStream given by constructor
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* @short Stream IO device
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*/
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class HStreamIODev : public HIODev
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{
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private:
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/* zlib으로 압축을 풀기 위한 자료 구조 */
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gz_stream *_gzfp;
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HStream& _stream;
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public:
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HStreamIODev(HStream& stream);
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virtual ~HStreamIODev();
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/**
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* Check whether the stream is available
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*/
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virtual bool open();
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/**
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* Free stream object
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*/
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virtual void close();
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/**
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* If the stream is gzipped, flush the stream.
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*/
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virtual void flush();
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/**
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* Not implemented.
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*/
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virtual int state() const;
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/**
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* Set whether the stream is compressed or not
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*/
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virtual bool setCompressed( bool );
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/**
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* Read one byte from stream
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*/
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using HIODev::read1b;
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virtual int read1b();
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/**
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* Read 2 bytes from stream
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*/
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using HIODev::read2b;
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virtual int read2b();
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/**
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* Read 4 bytes from stream
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*/
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using HIODev::read4b;
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virtual long read4b();
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/**
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* Read some bytes from stream to given pointer as amount of size
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*/
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virtual int readBlock( void *ptr, int size );
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/**
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* Move current pointer of stream as amount of size
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*/
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virtual int skipBlock( int size );
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protected:
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/**
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* Initialize this object
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*/
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virtual void init();
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};
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/* 메모리 입출력 장치 */
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/**
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* The HMemIODev class controls the Input/Output device.
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* @short Memory IO device
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*/
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class HMemIODev : public HIODev
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{
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uchar *ptr;
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int pos, length;
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public:
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HMemIODev(char *s, int len);
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virtual ~HMemIODev();
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virtual bool open();
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virtual void close();
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virtual void flush();
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virtual int state() const;
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/* gzip routine wrapper */
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virtual bool setCompressed( bool );
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using HIODev::read1b;
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virtual int read1b();
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using HIODev::read2b;
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virtual int read2b();
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using HIODev::read4b;
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virtual long read4b();
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virtual int readBlock( void *ptr, int size );
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virtual int skipBlock( int size );
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protected:
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virtual void init();
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};
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#endif /* _HIODEV_H_*/
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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