Function _load_map_cache

crawl-ref/source/maps.cc:1389–1408

}

static bool _load_map_cache(const string &filename, const string &cachename)
{
    _check_des_index_dir();
    if (!crawl_state.use_des_cache)
        return false;

    const string descache_base = get_descache_path(cachename, "");

    file_lock deslock(descache_base + ".lk", "rb", false);

    // What's the point in checking these twice (here and in load_ma_index)?
    time_t mtime = file_modtime(filename);
    if (!_verify_map_index(descache_base, mtime)
        || !_verify_map_full(descache_base, mtime))
    {
        return false;
    }

    return _load_map_index(cachename, descache_base, mtime);
}

static void _write_map_prelude(const string &filebase, time_t mtime)
{