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readWindowUpdateFrame() — netty Function Reference

Architecture documentation for the readWindowUpdateFrame() function in DefaultHttp2FrameReader.java from the netty codebase.

Function java Buffer Allocators called by 1

Entity Profile

Dependency Diagram

graph TD
  866df4f3_1a66_9d7b_fa0f_400cd4aa1c50["readWindowUpdateFrame()"]
  3768d640_58c2_34e7_3d69_a4b578e0d11a["DefaultHttp2FrameReader"]
  866df4f3_1a66_9d7b_fa0f_400cd4aa1c50 -->|defined in| 3768d640_58c2_34e7_3d69_a4b578e0d11a
  e711693c_32ed_ac69_29f1_ce5694750979["processPayloadState()"]
  e711693c_32ed_ac69_29f1_ce5694750979 -->|calls| 866df4f3_1a66_9d7b_fa0f_400cd4aa1c50
  style 866df4f3_1a66_9d7b_fa0f_400cd4aa1c50 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http2/src/main/java/io/netty/handler/codec/http2/DefaultHttp2FrameReader.java lines 579–594

    private void readWindowUpdateFrame(ChannelHandlerContext ctx, ByteBuf payload,
            Http2FrameListener listener) throws Http2Exception {
        int windowSizeIncrement = readUnsignedInt(payload);
        if (windowSizeIncrement == 0) {
            // On the connection stream this must be a connection error but for request streams it is a stream error.
            // See https://datatracker.ietf.org/doc/html/rfc9113#section-6.9 for details.
            if (streamId == CONNECTION_STREAM_ID) {
                throw connectionError(PROTOCOL_ERROR,
                        "Received WINDOW_UPDATE with delta 0 for connection stream");
            } else {
                throw streamError(streamId, PROTOCOL_ERROR,
                        "Received WINDOW_UPDATE with delta 0 for stream: %d", streamId);
            }
        }
        listener.onWindowUpdateRead(ctx, streamId, windowSizeIncrement);
    }

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does readWindowUpdateFrame() do?
readWindowUpdateFrame() is a function in the netty codebase, defined in codec-http2/src/main/java/io/netty/handler/codec/http2/DefaultHttp2FrameReader.java.
Where is readWindowUpdateFrame() defined?
readWindowUpdateFrame() is defined in codec-http2/src/main/java/io/netty/handler/codec/http2/DefaultHttp2FrameReader.java at line 579.
What calls readWindowUpdateFrame()?
readWindowUpdateFrame() is called by 1 function(s): processPayloadState.

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