emory/tools/analyse.cpp

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Copyright 2019 Danny Robson <danny@nerdcruft.net>
 */

#include "emory/chunk/map.hpp"
#include "emory/chunk/params.hpp"

#include <cruft/util/io.hpp>
#include <cruft/util/view.hpp>
#include <cruft/util/parse/value.hpp>

#include <iostream>


///////////////////////////////////////////////////////////////////////////////
enum {
    ARG_SELF,
    ARG_BITS,
    ARG_WINDOW,
    ARGS_MINIMUM,
    ARGS_INPUT,

    NUM_ARGS,
};


//-----------------------------------------------------------------------------
int main (int argc, char const **argv)
{
    if (argc != NUM_ARGS) {
        std::cerr << "usage: " << argv[ARG_SELF] << " <bits> <window> <minimum> <input>\n";
        return EXIT_FAILURE;
    }

    emory::chunk::params const p {
        .bits    = cruft::parse::from_string<std::size_t> (argv[ARG_BITS  ]),
        .window  = cruft::parse::from_string<std::size_t> (argv[ARG_WINDOW]),
        .minimum = cruft::parse::from_string<std::ptrdiff_t> (argv[ARGS_MINIMUM]),
    };

    cruft::mapped_file data (argv[ARGS_INPUT]);
    emory::chunk::map src (data, p);

    std::cout << src.size () << " chunks\n";
}