doBeginRead() — netty Function Reference

Architecture documentation for the doBeginRead() function in AbstractEpollChannel.java from the netty codebase.

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Buffer→ Search→ doBeginRead() — netty Function Reference

Dependency Diagram

graph TD
  53247603_85d1_6236_4978_c5e23c7a1777["doBeginRead()"]
  6a1b1970_2eef_b28f_03e7_8b11508deece["AbstractEpollChannel"]
  53247603_85d1_6236_4978_c5e23c7a1777 -->|defined in| 6a1b1970_2eef_b28f_03e7_8b11508deece
  183eb932_fb7f_4488_b2e8_71058cc21874["setFlag()"]
  53247603_85d1_6236_4978_c5e23c7a1777 -->|calls| 183eb932_fb7f_4488_b2e8_71058cc21874
  style 53247603_85d1_6236_4978_c5e23c7a1777 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

transport-classes-epoll/src/main/java/io/netty/channel/epoll/AbstractEpollChannel.java lines 244–254

    @Override
    protected void doBeginRead() throws Exception {
        // Channel.read() or ChannelHandlerContext.read() was called
        final AbstractEpollUnsafe unsafe = (AbstractEpollUnsafe) unsafe();
        unsafe.readPending = true;

        // We must set the read flag here as it is possible the user didn't read in the last read loop, the
        // executeEpollInReadyRunnable could read nothing, and if the user doesn't explicitly call read they will
        // never get data after this.
        setFlag(Native.EPOLLIN);
    }