1 /*
2 * Copyright 2015 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 package io.netty.channel.epoll;
17
18 import io.netty.channel.RecvByteBufAllocator;
19
20 final class EpollRecvByteAllocatorStreamingHandle extends EpollRecvByteAllocatorHandle {
21 EpollRecvByteAllocatorStreamingHandle(RecvByteBufAllocator.ExtendedHandle handle) {
22 super(handle);
23 }
24
25 @Override
26 boolean maybeMoreDataToRead() {
27 /**
28 * For stream oriented descriptors we can assume we are done reading if the last read attempt didn't produce
29 * a full buffer (see Q9 in <a href="https://man7.org/linux/man-pages/man7/epoll.7.html">epoll man</a>).
30 *
31 * If EPOLLRDHUP has been received we must read until we get a read error.
32 */
33 return lastBytesRead() == attemptedBytesRead() || isReceivedRdHup();
34 }
35 }