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/*
 *  Baltisot
 *  Copyright (C) 1999-2007 Nicolas "Pixel" Noble
 *
 *  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; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/* $Id: Input.h,v 1.22 2007-05-30 11:57:08 pixel Exp $ */

#ifndef __INPUT_H__
#define __INPUT_H__

#include <sys/types.h>
#include <time.h>
#include <BString.h>
#include <Handle.h>

enum ArchiveType {
    ARCHIVE_BUILTIN = 0,
    ARCHIVE_EXECUTABLE
};

class Input : public Handle {
  public:
      Input(const String & = "") throw (GeneralException);
      Input(const Input &);
      virtual ~Input() {}
    virtual bool CanWrite() const;
    virtual bool CanRead() const;
    virtual bool CanSeek() const;
    virtual off_t seek(off_t, int = SEEK_SET) throw (GeneralException);
    virtual String GetName() const;
    virtual ssize_t GetSize() const;
    virtual time_t GetModif() const;
    virtual void SetZ(int = 9) throw (GeneralException);

    struct openresults_t {
	String name;
	int type;
	size_t size;
	size_t ptr;
    };

  protected:
    String n;
    off_t size;
    time_t date_modif;
    openresults_t results;
    bool fromarchive;

  private:
    int wrapopen(const String &, openresults_t *);
};

class Stdin_t : public Input {
  public:
      Stdin_t();
      virtual ~Stdin_t() {}
    virtual bool CanSeek() const;
    virtual String GetName() const;
};

extern Stdin_t Stdin;

class Archive : public Base {
  public:
      Archive(const String &, int = ARCHIVE_BUILTIN);
      Archive(Handle *, int = ARCHIVE_BUILTIN);
      virtual ~Archive();
  protected:
    static Archive * inarchive(const String &);
    Handle * GetHandle();
    int open(const String &, Input::openresults_t *);
  private:
    void create() throw (GeneralException);
    bool inarchivein(const String &);
    int openin(const String &, Input::openresults_t *) throw (GeneralException);
    class FileTree : public Base {
      public:
          FileTree(const String & = "", size_t = 0, int = 0, FileTree * = 0);
	  virtual ~FileTree();
	int compute_ptrs(size_t = 0);
	FileTree * Father();
	FileTree * Child();
	FileTree * Next();
	FileTree * Prev();
    	String name;
    	int type;
	size_t size;
	size_t ptr;
      private:
    	void touched();
	FileTree * next, * prev, * father, * child;
    } filetree;
    String name;
    Handle * archive;
    int type;
    Archive * next, * prev;
    static Archive * header;
    
    friend class Input;
};

#endif