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Diffstat (limited to 'reader.hpp')
-rw-r--r-- | reader.hpp | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/reader.hpp b/reader.hpp deleted file mode 100644 index 688dc63..0000000 --- a/reader.hpp +++ /dev/null @@ -1,95 +0,0 @@ -/* $Id: reader.hpp,v 1.6 2006/11/05 04:42:43 ganzhorn Exp $ - * This file is part of lfhex. - * Copyright (C) 2006 Salem Ganzhorn <eyekode@yahoo.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation version 2. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ -#ifndef _READER_H_ -#define _READER_H_ - -// -// Interface for Reader object. -// -// Reader object supports: -// open(const QString& filename ); -> open a file for reading -// bool is_open(); -> see if file is open -// close(); -> free resources for open file. -// int read( vector<uchar>& v, int maxSize ) -> fill v with maxSize data from -// open file. -// off_t seek( off_t offset ); -> move file pointer to offset offset. -// - -#include <sys/types.h> -#include <stdio.h> - -#include <vector> -#include <string> -#include <iostream> - -#include "local.h" - -typedef vector<uchar> ReadBuffer; - -#ifdef __GNUC__ -ostream& operator<< (ostream&out,const ReadBuffer& buff); -#endif - -class Reader { - public: - // default is only 50*4k = 200k memory image. - Reader(const string& filename = "",off_t npages = 50, off_t pageSize = 4096); - ~Reader(); - - bool open(const string& filename); - bool close(); - bool eof(); - bool is_open() const; - - size_t read( ReadBuffer& v, size_t numBytes ); - off_t seek( off_t offset ); - off_t tell() const; // returns the current offset or -1 if !open - off_t size() const; - const char* lastError() const; - const char* filename() const; - - uchar operator[] (off_t offset); // cannot be const because it does change - // data by loading/swapping pages - off_t findIndex( off_t start, const vector<uchar>& data, - off_t stop ); - off_t rFindIndex( off_t start, const vector<uchar>& data, - off_t stop ); - protected: - bool dataIsAtOffset( const vector<uchar>& data, off_t pos ); - bool loadPage(off_t pageIdx); - bool freePage(off_t pageIdx); - off_t nFreePages() const; - off_t& nFreePages(); - - protected: - string _error; - FILE* _fptr; - bool _is_open; - bool _eof; - string _filename; - off_t _offset; // current offset - off_t _size; // file size from fstat - off_t _pageSize; // number of bytes in a page - off_t _firstPage; // first currently loaded page - off_t _lastPage; // last currently loaded page - off_t _maxPages; // maximum number of pages which could be currently loaded - off_t _freePages; // number of free pages - vector< uchar *> _data; -}; - -#endif |