bool write_data(int id, void* data, int current_data_size) {
    FILE * data_file = NULL;
    string current_file;
    int last_written_byte_position = 0;
    while (current_data_size != 0) {
        if (data_file == NULL) {
            current_file = get_new_file_path();
        }
        data_file = fopen(current_file.c_str(), "a+b");
        unsigned int file_free_space = get_file_free_space(current_file);
        if (file_free_space == 0) {
            current_file = get_new_file_path();
            data_file = fopen(current_file.c_str(), "a+b");
        }
        int bytes_number_to_write;
        if (current_data_size > file_free_space) {
            bytes_number_to_write = file_free_space;
            write_data_to_file(data, data_file, last_written_byte_position, bytes_number_to_write, current_file, id);
            last_written_byte_position += bytes_number_to_write;
        }
        else {
            bytes_number_to_write = current_data_size;
            write_data_to_file(data, data_file, last_written_byte_position, bytes_number_to_write, current_file, id);
        }
        current_data_size -= bytes_number_to_write;
        is_data_size_invalid(current_data_size);
        fclose(data_file);
        data_file = NULL;
    }
    return true;
}

bool storage(int id, void* data, int array_length) {
    if (check_if_current_id_is_already_exists(id)) {
        delete_data(id);
    }
    unsigned int current_data_size = array_length * 4;
    save_current_data_size(id, current_data_size);
    write_data(id, data, current_data_size);
    indexes[id].deleted = false;
    return true;
}