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Make it more flexible in terms of supporting GSO (java-native-access#222
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59 changes: 59 additions & 0 deletions
59
src/main/java/io/netty/incubator/codec/quic/SegmentedDatagramPacketAllocator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| /* | ||
| * Copyright 2021 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.incubator.codec.quic; | ||
|
|
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| import io.netty.buffer.ByteBuf; | ||
| import io.netty.channel.socket.DatagramPacket; | ||
|
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| import java.net.InetSocketAddress; | ||
|
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| /** | ||
| * Used to allocate datagram packets that use UDP_SEGMENT (GSO). | ||
| */ | ||
| public interface SegmentedDatagramPacketAllocator { | ||
|
|
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| /** | ||
| * {@link SegmentedDatagramPacketAllocator} which should be used if no UDP_SEGMENT is supported and used. | ||
| */ | ||
| SegmentedDatagramPacketAllocator NONE = new SegmentedDatagramPacketAllocator() { | ||
| @Override | ||
| public int maxNumSegments() { | ||
| return 0; | ||
| } | ||
|
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| @Override | ||
| public DatagramPacket newPacket(ByteBuf buffer, int segmentSize, InetSocketAddress remoteAddress) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
| }; | ||
|
|
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| /** | ||
| * The maximum number of segments to use per packet. | ||
| * | ||
| * @return the segments. | ||
| */ | ||
| int maxNumSegments(); | ||
|
|
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| /** | ||
| * Return a new segmented {@link DatagramPacket}. | ||
| * | ||
| * @param buffer the {@link ByteBuf} that is used as content. | ||
| * @param segmentSize the size of each segment. | ||
| * @param remoteAddress the remote address to send to. | ||
| * @return the packet. | ||
| */ | ||
| DatagramPacket newPacket(ByteBuf buffer, int segmentSize, InetSocketAddress remoteAddress); | ||
| } |
45 changes: 45 additions & 0 deletions
45
src/test/java/io/netty/incubator/codec/quic/EpollSegmentedDatagramPacketAllocator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /* | ||
| * Copyright 2021 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.incubator.codec.quic; | ||
|
|
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| import io.netty.buffer.ByteBuf; | ||
| import io.netty.channel.epoll.SegmentedDatagramPacket; | ||
| import io.netty.channel.socket.DatagramPacket; | ||
|
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| import java.net.InetSocketAddress; | ||
|
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| final class EpollSegmentedDatagramPacketAllocator implements SegmentedDatagramPacketAllocator { | ||
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| private final int maxNumSegments; | ||
|
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| EpollSegmentedDatagramPacketAllocator(int maxNumSegments) { | ||
| this.maxNumSegments = maxNumSegments; | ||
| } | ||
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| @Override | ||
| public int maxNumSegments() { | ||
| return maxNumSegments; | ||
| } | ||
|
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| @Override | ||
| public DatagramPacket newPacket(ByteBuf buffer, int segmentSize, InetSocketAddress remoteAddress) { | ||
| return new SegmentedDatagramPacket(buffer, segmentSize, remoteAddress); | ||
| } | ||
|
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| static boolean isSupported() { | ||
| return SegmentedDatagramPacket.isSupported(); | ||
| } | ||
| } |
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