/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.flink.runtime.io.disk.iomanager; import org.apache.flink.runtime.io.network.buffer.Buffer; import org.apache.flink.runtime.util.event.NotificationListener; import java.io.IOException; public interface BufferFileWriter extends BlockChannelWriterWithCallback<Buffer> { /** * Returns the number of outstanding requests. */ int getNumberOfOutstandingRequests(); /** * Registers a listener, which is notified after all outstanding requests have been processed. */ boolean registerAllRequestsProcessedListener(NotificationListener listener) throws IOException; }