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channelRead() — netty Function Reference

Architecture documentation for the channelRead() function in PcapWriteHandler.java from the netty codebase.

Function java Buffer Allocators calls 4

Entity Profile

Dependency Diagram

graph TD
  ad9aed33_ce6c_03a6_768d_de9fb726fba9["channelRead()"]
  59f0289b_ecfd_de3c_3397_4cf08e2047d1["PcapWriteHandler"]
  ad9aed33_ce6c_03a6_768d_de9fb726fba9 -->|defined in| 59f0289b_ecfd_de3c_3397_4cf08e2047d1
  f413848a_cf63_e812_442c_2bc5760c526a["initializeIfNecessary()"]
  ad9aed33_ce6c_03a6_768d_de9fb726fba9 -->|calls| f413848a_cf63_e812_442c_2bc5760c526a
  56402456_64d5_e1dd_9d6f_c6dfc0490e45["handleTCP()"]
  ad9aed33_ce6c_03a6_768d_de9fb726fba9 -->|calls| 56402456_64d5_e1dd_9d6f_c6dfc0490e45
  06ef8177_bf66_5538_b798_56d322fe8d3e["handleUDP()"]
  ad9aed33_ce6c_03a6_768d_de9fb726fba9 -->|calls| 06ef8177_bf66_5538_b798_56d322fe8d3e
  682cf011_ffef_6de0_c050_4127211ca986["logDiscard()"]
  ad9aed33_ce6c_03a6_768d_de9fb726fba9 -->|calls| 682cf011_ffef_6de0_c050_4127211ca986
  style ad9aed33_ce6c_03a6_768d_de9fb726fba9 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

handler/src/main/java/io/netty/handler/pcap/PcapWriteHandler.java lines 277–300

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        // Initialize if needed
        if (state.get() == State.INIT) {
            try {
                initializeIfNecessary(ctx);
            } catch (Exception ex) {
                ReferenceCountUtil.release(msg);
                throw ex;
            }
        }

        // Only write if State is STARTED
        if (state.get() == State.WRITING) {
            if (channelType == ChannelType.TCP) {
                handleTCP(ctx, msg, false);
            } else if (channelType == ChannelType.UDP) {
                handleUDP(ctx, msg, false);
            } else {
                logDiscard();
            }
        }
        super.channelRead(ctx, msg);
    }

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does channelRead() do?
channelRead() is a function in the netty codebase, defined in handler/src/main/java/io/netty/handler/pcap/PcapWriteHandler.java.
Where is channelRead() defined?
channelRead() is defined in handler/src/main/java/io/netty/handler/pcap/PcapWriteHandler.java at line 277.
What does channelRead() call?
channelRead() calls 4 function(s): handleTCP, handleUDP, initializeIfNecessary, logDiscard.

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