/* -*- c++ -*- */

/*

 * Copyright 2004 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio 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 3, or (at your option)

 * any later version.

 * 

 * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street,

 * Boston, MA 02110-1301, USA.

 */

#include <cstdio>

#include <cstdlib>

#include <string>

#include <iostream>

#include <fstream>

#include <libguile.h>

// Include our definitions

#include "xyzzy.h"

using namespace std;

int

main(int argc, char *argv[])

{

// Initialize with the data file produced by gen-xyzzy.

// bool init()

// bool init(const std::string &file)

// Does a file with name 'filename' exist in magic filesystem?

//    bool file_exists(handle, const std::string &filespec);

// bool file_exists(const std::string &filespec)

// Return a C port that will read the file contents

//    SCM make_read_only_port(handle, const std::string &filespec)

// SCM make_read_only_port(const std::string &filespec)

}

/* -*- c++ -*- */

/*

 * Copyright 2004 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio 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 3, or (at your option)

 * any later version.

 * 

 * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street,

 * Boston, MA 02110-1301, USA.

 */

#include <cstdio>

#include <cstdlib>

#include <string>

#include <iostream>

#include <fstream>

#include <libguile.h>

// Include our definitions

#include "xyzzy.h"

using namespace std;

typedef void* handle_t;

handle_t datafile;

// Initialize with the data file produced by gen-xyzzy.

bool init()

{

    string filespec = PKGLIBDIR;

    filespec += '/';

    filespec += "filesystem.dat";

    return init(filespec);

};

bool init(const std::string &file)

{

    return false;

};

// Does a file with name 'filename' exist in magic filesystem?

//    bool file_exists(handle, const std::string &filespec);

bool

file_exists(const std::string &filespec)

{

//    datafile

}

// Return a C port that will read the file contents

//    SCM make_read_only_port(handle, const std::string &filespec)

SCM

make_read_only_port(const std::string &filespec)

{

//    datafile

}

/* -*- c++ -*- */

/*

 * Copyright 2004 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio 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 3, or (at your option)

 * any later version.

 * 

 * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street,

 * Boston, MA 02110-1301, USA.

 */

#ifndef _XYZZY_H_

#define _XYZZY_H_ 1

#include <cstdio>

#include <cstdlib>

#include <string>

#include <iostream>

#include <fstream>

#include <libguile.h>

using namespace std;

// - Special case filenames that start with /-xyzzy-/... and search for

//   and load them using the single file.  We'd stick "/-zyzzy-" first

//   in the default load-path.

// - Create a C read-only "port" that "reads" from the string in the file.

//   (See guile docs on creating new kinds of ports)

// - Override the default implementation of "primitive-load" and "%search-load-path"

//   to make that happen.  See load.c in the guile source code.  Figure

//   out how to get the override done before guile is fully

//   initialized.  (Guile loads ice-9/boot9.scm to start itself up.  We'd

//   need to redirect before then.)

struct header {

    char     magic[8];

    uint32_t offset_to_directory;	// byte offset from start of file

    uint32_t size_of_directory;         // bytes

    uint32_t number_of_dir_entries;

    uint32_t offset_to_strings;	// byte offset from start of file

    uint32_t size_of_strings;	// bytes

};

struct directory_entry {

    uint32_t offset_to_name;	 // from start of strings

    uint32_t offset_to_contents; // from start of strings

};

// Each string starts with a uint32_t length, followed by length bytes.

// There is no trailing \0 in the string.    

struct string_entry {

    uint32_t	    length;

    unsigned char c[1];		// 0 is nicer, but not portable.

};

// Initialize with the data file produced by gen-xyzzy.

bool init(const std::string &filespec);

bool init();

// Does a file with name 'filename' exist in magic filesystem?

bool file_exists(const std::string &filespec);

// Return a C port that will read the file contents

SCM make_read_only_port(const std::string &filespec);

#endif  // _XYZZY_H_ 1