wikimedia / mediawiki

	 * @since 1.25

	 * @return float|bool UNIX timestamp or false

	 */

	public function lastMasterChangeTimestamp() {

		$lastTime = false;

		$masterIndex = $this->getWriterIndex();

		foreach ( $this->mConns as $conns2 ) {

			if ( empty( $conns2[$masterIndex] ) ) {

				continue;

			}

			/** @var DatabaseBase $conn */

			foreach ( $conns2[$masterIndex] as $conn ) {

				$lastTime = max( $lastTime, $conn->lastDoneWrites() );

			}

		}

		return $lastTime;

	}

	/**

	 * Check if this load balancer object had any recent or still

	 * @return array

	 * @since 1.27

	 */

	public function pendingMasterChangeCallers() {

		$fnames = [];

		$masterIndex = $this->getWriterIndex();

		foreach ( $this->mConns as $conns2 ) {

			if ( empty( $conns2[$masterIndex] ) ) {

				continue;

			}

			/** @var DatabaseBase $conn */

			foreach ( $conns2[$masterIndex] as $conn ) {

				$fnames = array_merge( $fnames, $conn->pendingWriteCallers() );

			}

		}

		return $fnames;

	}

	/**

	 * @note This method will trigger a DB connection if not yet done