1 /*
2 * Copyright 2013 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16
17 package io.netty.util.concurrent;
18
19 public interface GenericProgressiveFutureListener<F extends ProgressiveFuture<?>> extends GenericFutureListener<F> {
20 /**
21 * Invoked when the operation has progressed.
22 *
23 * @param progress the progress of the operation so far (cumulative)
24 * @param total the number that signifies the end of the operation when {@code progress} reaches at it.
25 * {@code -1} if the end of operation is unknown.
26 */
27 void operationProgressed(F future, long progress, long total) throws Exception;
28 }