Motivation: The Http2DefaultFrameWriter copies all contents into a buffer (or uses a CompositeBuffer in 1 case) and then writes that buffer to the socket. There is an opportunity to avoid the copy operations and write directly to the socket. Modifications: - Http2DefaultFrameWriter should avoid copy operations where possible. - The Http2FrameWriter interface should be clarified to indicate that ByteBuf objects will be released. Result: Hopefully less allocation/copy leads to memory and throughput performance benefit.
40 lines
1.6 KiB
Java
40 lines
1.6 KiB
Java
/*
|
|
* Copyright 2014 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:
|
|
*
|
|
* http://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.http2;
|
|
|
|
import io.netty.buffer.ByteBuf;
|
|
import io.netty.channel.ChannelFuture;
|
|
import io.netty.channel.ChannelHandlerContext;
|
|
import io.netty.channel.ChannelPromise;
|
|
|
|
/**
|
|
* Interface that defines an object capable of producing HTTP/2 data frames.
|
|
*/
|
|
public interface Http2DataWriter {
|
|
/**
|
|
* Writes a {@code DATA} frame to the remote endpoint.
|
|
*
|
|
* @param ctx the context to use for writing.
|
|
* @param streamId the stream for which to send the frame.
|
|
* @param data the payload of the frame. This will be released by this method.
|
|
* @param padding the amount of padding to be added to the end of the frame
|
|
* @param endStream indicates if this is the last frame to be sent for the stream.
|
|
* @param promise the promise for the write.
|
|
* @return the future for the write.
|
|
*/
|
|
ChannelFuture writeData(ChannelHandlerContext ctx, int streamId,
|
|
ByteBuf data, int padding, boolean endStream, ChannelPromise promise);
|
|
}
|