| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| /** |
| * hwpio.h |
| * (C) 1999 Mizi Research, All rights are reserved |
| * |
| * $Id: hiodev.h,v 1.5 2008-04-10 12:05:55 rt Exp $ |
| */ |
| |
| #ifndef _HIODEV_H_ |
| #define _HIODEV_H_ |
| |
| #ifdef __GNUG__ |
| #pragma interface |
| #endif |
| |
| #include <stdio.h> |
| #include "hwplib.h" |
| /** |
| * @short Abstract IO class |
| */ |
| class DLLEXPORT HIODev |
| { |
| protected: |
| bool compressed; |
| virtual void init(); |
| public: |
| HIODev(); |
| virtual ~HIODev(); |
| |
| virtual bool open() = 0; |
| virtual void close() = 0; |
| virtual void flush() = 0; |
| virtual int state() const = 0; |
| /* gzip routine wrapper */ |
| virtual bool setCompressed( bool ) = 0; |
| |
| virtual int read1b() = 0; |
| virtual int read2b() = 0; |
| virtual long read4b() = 0; |
| virtual int readBlock( void *ptr, int size ) = 0; |
| virtual int skipBlock( int size ) = 0; |
| |
| virtual int read1b( void *ptr, int nmemb ); |
| virtual int read2b( void *ptr, int nmemb ); |
| virtual int read4b( void *ptr, int nmemb ); |
| }; |
| |
| struct gz_stream; |
| |
| /* 파일 입출력 장치 */ |
| |
| /** |
| * This controls the HStream given by constructor |
| * @short Stream IO device |
| */ |
| class HStreamIODev : public HIODev |
| { |
| private: |
| /* zlib으로 압축을 풀기 위한 자료 구조 */ |
| gz_stream *_gzfp; |
| HStream& _stream; |
| public: |
| HStreamIODev(HStream& stream); |
| virtual ~HStreamIODev(); |
| /** |
| * Check whether the stream is available |
| */ |
| virtual bool open(); |
| /** |
| * Free stream object |
| */ |
| virtual void close(); |
| /** |
| * If the stream is gzipped, flush the stream. |
| */ |
| virtual void flush(); |
| /** |
| * Not implemented. |
| */ |
| virtual int state() const; |
| /** |
| * Set whether the stream is compressed or not |
| */ |
| virtual bool setCompressed( bool ); |
| /** |
| * Read one byte from stream |
| */ |
| using HIODev::read1b; |
| virtual int read1b(); |
| /** |
| * Read 2 bytes from stream |
| */ |
| using HIODev::read2b; |
| virtual int read2b(); |
| /** |
| * Read 4 bytes from stream |
| */ |
| using HIODev::read4b; |
| virtual long read4b(); |
| /** |
| * Read some bytes from stream to given pointer as amount of size |
| */ |
| virtual int readBlock( void *ptr, int size ); |
| /** |
| * Move current pointer of stream as amount of size |
| */ |
| virtual int skipBlock( int size ); |
| protected: |
| /** |
| * Initialize this object |
| */ |
| virtual void init(); |
| }; |
| |
| /* 메모리 입출력 장치 */ |
| /** |
| * The HMemIODev class controls the Input/Output device. |
| * @short Memory IO device |
| */ |
| class HMemIODev : public HIODev |
| { |
| uchar *ptr; |
| int pos, length; |
| public: |
| HMemIODev(char *s, int len); |
| virtual ~HMemIODev(); |
| |
| virtual bool open(); |
| virtual void close(); |
| virtual void flush(); |
| virtual int state() const; |
| /* gzip routine wrapper */ |
| virtual bool setCompressed( bool ); |
| using HIODev::read1b; |
| virtual int read1b(); |
| using HIODev::read2b; |
| virtual int read2b(); |
| using HIODev::read4b; |
| virtual long read4b(); |
| virtual int readBlock( void *ptr, int size ); |
| virtual int skipBlock( int size ); |
| protected: |
| virtual void init(); |
| }; |
| #endif /* _HIODEV_H_*/ |