ByteBuf() — netty Function Reference

Architecture documentation for the ByteBuf() function in Http2FrameWriterDataBenchmark.java from the netty codebase.

Function java Buffer Allocators calls 1

Entity Profile

Buffer→ Allocators→ ByteBuf() — netty Function Reference

Dependency Diagram

graph TD
  f58afd80_2dcc_b205_a069_6d6dd9a94949["ByteBuf()"]
  04abad0f_8793_fb74_8fcd_e6ba7ef5d1b8["DataFrameHeader"]
  f58afd80_2dcc_b205_a069_6d6dd9a94949 -->|defined in| 04abad0f_8793_fb74_8fcd_e6ba7ef5d1b8
  a5f21c86_e796_6cbb_1c79_52d9f91f15db["writePaddingLength()"]
  f58afd80_2dcc_b205_a069_6d6dd9a94949 -->|calls| a5f21c86_e796_6cbb_1c79_52d9f91f15db
  style f58afd80_2dcc_b205_a069_6d6dd9a94949 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

microbench/src/main/java/io/netty/handler/codec/http2/Http2FrameWriterDataBenchmark.java lines 216–235

            ByteBuf slice(int data, int padding, boolean endOfStream) {
                // Since we're reusing the current frame header whenever possible, check if anything changed
                // that requires a new header.
                if (data != prevData || padding != prevPadding
                        || endOfStream != flags.endOfStream() || frameHeader == null) {
                    // Update the header state.
                    prevData = data;
                    prevPadding = padding;
                    flags.paddingPresent(padding > 0);
                    flags.endOfStream(endOfStream);
                    frameHeader = buffer.slice(buffer.readerIndex(), DATA_FRAME_HEADER_LENGTH).writerIndex(0);
                    buffer.setIndex(buffer.readerIndex() + DATA_FRAME_HEADER_LENGTH,
                            buffer.writerIndex() + DATA_FRAME_HEADER_LENGTH);

                    int payloadLength = data + padding;
                    writeFrameHeaderInternal(frameHeader, payloadLength, DATA, flags, streamId);
                    writePaddingLength(frameHeader, padding);
                }
                return frameHeader.slice();
            }