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   /*
    * Copyright 2015 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.channel.epoll;
  
  import io.netty.channel.RecvByteBufAllocator;
  
  final class EpollRecvByteAllocatorStreamingHandle extends EpollRecvByteAllocatorHandle {
      EpollRecvByteAllocatorStreamingHandle(RecvByteBufAllocator.ExtendedHandle handle) {
          super(handle);
      }
  
      @Override
      boolean maybeMoreDataToRead() {
          /**
           * For stream oriented descriptors we can assume we are done reading if the last read attempt didn't produce
           * a full buffer (see Q9 in <a href="https://man7.org/linux/man-pages/man7/epoll.7.html">epoll man</a>).
           *
           * If EPOLLRDHUP has been received we must read until we get a read error.
           */
          return lastBytesRead() == attemptedBytesRead() || isReceivedRdHup();
      }
  }