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   /*
    * Copyright 2023 The Netty Project
    *
    * The Netty Project 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:
    *
    *   https://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 io.netty.handler.codec.compression;
  
  import io.netty.channel.ChannelFuture;
  import io.netty.channel.ChannelFutureListener;
  import io.netty.channel.ChannelHandlerContext;
  import io.netty.channel.ChannelPromise;
  import io.netty.util.concurrent.Future;
  
  import java.util.concurrent.TimeUnit;
  
  final class EncoderUtil {
      private static final int THREAD_POOL_DELAY_SECONDS = 10;
  
      static void closeAfterFinishEncode(final ChannelHandlerContext ctx, final ChannelFuture finishFuture,
                                         final ChannelPromise promise) {
          if (!finishFuture.isDone()) {
              // Ensure the channel is closed even if the write operation completes in time.
              final Future<?> future = ctx.executor().schedule(new Runnable() {
                  @Override
                  public void run() {
                      ctx.close(promise);
                  }
              }, THREAD_POOL_DELAY_SECONDS, TimeUnit.SECONDS);
  
              finishFuture.addListener(new ChannelFutureListener() {
                  @Override
                  public void operationComplete(ChannelFuture f)  {
                      // Cancel the scheduled timeout.
                      future.cancel(true);
                      if (!promise.isDone()) {
                          ctx.close(promise);
                      }
                  }
              });
          } else {
              ctx.close(promise);
          }
      }
  
      private EncoderUtil() { }
  }