gemrb/core/System/FileStream.h

   1 /* GemRB - Infinity Engine Emulator
   2  * Copyright (C) 2003 The GemRB Project
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  *
  19  */
  20
  21 /**
  22  * @file FileStream.h
  23  * Declares FileStream class, stream reading/writing data from/to a file in a filesystem.
  24  * @author The GemRB Project
  25  */
  26
  27
  28 #ifndef FILESTREAM_H
  29 #define FILESTREAM_H
  30
  31 #include "System/DataStream.h"
  32
  33 #include "exports.h"
  34 #include "globals.h"
  35
  36 /**
  37  * @class FileStream
  38  * Reads and writes data from/to files on a filesystem
  39  */
  40
  41 class GEM_EXPORT FileStream : public DataStream {
  42 private:
  43         bool autoFree;
  44         unsigned long startpos;
  45         _FILE* str;
  46         bool opened, created;
  47 public:
  48         FileStream(void);
  49         ~FileStream(void);
  50
  51         bool Open(const char* filename, bool autoFree = true);
  52         bool Open(_FILE* stream, int startpos, int size, bool autoFree = false);
  53         bool Modify(const char* filename, bool autoFree = true);
  54         bool Create(const char* folder, const char* filename, SClass_ID ClassID);
  55         bool Create(const char* filename, SClass_ID ClassID);
  56         int Read(void* dest, unsigned int length);
  57         int Write(const void* src, unsigned int length);
  58         int Seek(int pos, int startpos);
  59         unsigned long GetStartPos() const;
  60         int ReadLine(void* buf, unsigned int maxlen);
  61 };
  62
  63 #endif  // ! FILESTREAM_H