ecksum() {
		$store = new Replicastore();
		do_action( 'jetpack_sync_checksum', $store->checksum_all() );
	}

	/**
	 * Reset the incremental sync queue.
	 *
	 * @access public
	 */
	public function reset_sync_queue() {
		$this->sync_queue->reset();
	}

	/**
	 * Reset the full sync queue.
	 *
	 * @access public
	 */
	public function reset_full_sync_queue() {
		$this->full_sync_queue->reset();
	}

	/**
	 * Set the maximum bytes to checkout without exceeding the memory limit.
	 *
	 * @access public
	 *
	 * @param int $size Maximum bytes to checkout.
	 */
	public function set_dequeue_max_bytes( $size ) {
		$this->dequeue_max_bytes = $size;
	}

	/**
	 * Set the maximum bytes in a single encoded item.
	 *
	 * @access public
	 *
	 * @param int $max_bytes Maximum bytes in a single encoded item.
	 */
	public function set_upload_max_bytes( $max_bytes ) {
		$this->upload_max_bytes = $max_bytes;
	}

	/**
	 * Set the maximum number of sync items in a single action.
	 *
	 * @access public
	 *
	 * @param int $max_rows Maximum number of sync items.
	 */
	public function set_upload_max_rows( $max_rows ) {
		$this->upload_max_rows = $max_rows;
	}

	/**
	 * Set the sync wait time (in seconds).
	 *
	 * @access public
	 *
	 * @param int $seconds Sync wait time.
	 */
	public function set_sync_wait_time( $seconds ) {
		$this->sync_wait_time = $seconds;
	}

	/**
	 * Get current sync wait time (in seconds).
	 *
	 * @access public
	 *
	 * @return int Sync wait time.
	 */
	public function get_sync_wait_time() {
		return $this->sync_wait_time;
	}

	/**
	 * Set the enqueue wait time (in seconds).
	 *
	 * @access public
	 *
	 * @param int $seconds Enqueue wait time.
	 */
	public function set_enqueue_wait_time( $seconds ) {
		$this->enqueue_wait_time = $seconds;
	}

	/**
	 * Get current enqueue wait time (in seconds).
	 *
	 * @access public
	 *
	 * @return int Enqueue wait time.
	 */
	public function get_enqueue_wait_time() {
		return $this->enqueue_wait_time;
	}

	/**
	 * Set the sync wait threshold (in seconds).
	 *
	 * @access public
	 *
	 * @param int $seconds Sync wait threshold.
	 */
	public function set_sync_wait_threshold( $seconds ) {
		$this->sync_wait_threshold = $seconds;
	}

	/**
	 * Get current sync wait threshold (in seconds).
	 *
	 * @access public
	 *
	 * @return int Sync wait threshold.
	 */
	public function get_sync_wait_threshold() {
		return $this->sync_wait_threshold;
	}

	/**
	 * Set the maximum time for perfirming a checkout of items from the queue (in seconds).
	 *
	 * @access public
	 *
	 * @param int $seconds Maximum dequeue time.
	 */
	public function set_max_dequeue_time( $seconds ) {
		$this->max_dequeue_time = $seconds;
	}

	/**
	 * Initialize the sync queues, codec and set the default settings.
	 *
	 * @access public
	 */
	public function set_defaults() {
		$this->sync_queue      = new Queue( 'sync' );
		$this->full_sync_queue = new Queue( 'full_sync' );
		$this->set_codec();

		// Saved settings.
		Settings::set_importing( null );
		$settings = Settings::get_settings();
		$this->set_dequeue_max_bytes( $settings['dequeue_max_bytes'] );
		$this->set_upload_max_bytes( $settings['upload_max_bytes'] );
		$this->set_upload_max_rows( $settings['upload_max_rows'] );
		$this->set_sync_wait_time( $settings['sync_wait_time'] );
		$this->set_enqueue_wait_time( $settings['enqueue_wait_time'] );
		$this->set_sync_wait_threshold( $settings['sync_wait_threshold'] );
		$this->set_max_dequeue_time( Defaults::get_max_sync_execution_time() );
	}

	/**
	 * Reset sync queues, modules and settings.
	 *
	 * @access public
	 */
	public function reset_data() {
		$this->reset_sync_queue();
		$this->reset_full_sync_queue();

		foreach ( Modules::get_modules() as $module ) {
			$module->reset_data();
		}
		// Reset Sync locks without unlocking queues since we already reset those.
		Actions::reset_sync_locks( false );

		Settings::reset_data();
	}

	/**
	 * Perform cleanup at the event of plugin uninstallation.
	 *
	 * @access public
	 */
	public function uninstall() {
		// Lets delete all the other fun stuff like transient and option and the sync queue.
		$this->reset_data();

		// Delete the full sync status.
		delete_option( 'jetpack_full_sync_status' );

		// Clear the sync cron.
		wp_clear_scheduled_hook( 'jetpack_sync_cron' );
		wp_clear_scheduled_hook( 'jetpack_sync_full_cron' );
	}
}