b3dba317d7
Motivation: The HTTP/2 codec will synchronously respond to a SETTINGS frame with a SETTINGS ACK before the application sees the SETTINGS frame. The application may need to adjust its state depending upon what is in the SETTINGS frame before applying the remote settings and responding with an ACK (e.g. to adjust for max concurrent streams). In order to accomplish this the HTTP/2 codec should allow for the application to opt-in to sending the SETTINGS ACK. Modifications: - DefaultHttp2ConnectionDecoder should support a mode where SETTINGS frames can be queued instead of immediately applying and ACKing. - DefaultHttp2ConnectionEncoder should attempt to poll from the queue (if it exists) to apply the earliest received but not yet ACKed SETTINGS frame. - AbstractHttp2ConnectionHandlerBuilder (and sub classes) should support a new option to enable the application to opt-in to managing SETTINGS ACK. Result: HTTP/2 allows for asynchronous SETTINGS ACK managed by the application.
26 lines
965 B
Java
26 lines
965 B
Java
/*
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* Copyright 2019 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License, version 2.0 (the
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* "License"); you may not use this file except in compliance with the License. You may obtain a
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* copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package io.netty.handler.codec.http2;
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/**
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* Provides a Consumer like interface to consume remote settings received but not yet ACKed.
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*/
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public interface Http2SettingsReceivedConsumer {
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/**
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* Consume the most recently received but not yet ACKed settings.
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*/
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void consumeReceivedSettings(Http2Settings settings);
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}
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