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setOption() — netty Function Reference

Architecture documentation for the setOption() function in EpollSocketChannelConfig.java from the netty codebase.

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Dependency Diagram

graph TD
  1182c121_4602_1682_db0d_5d56217e031d["setOption()"]
  f9f9abc3_5d7e_54ea_b32a_5c493de53a1e["EpollSocketChannelConfig"]
  1182c121_4602_1682_db0d_5d56217e031d -->|defined in| f9f9abc3_5d7e_54ea_b32a_5c493de53a1e
  style 1182c121_4602_1682_db0d_5d56217e031d fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

transport-classes-epoll/src/main/java/io/netty/channel/epoll/EpollSocketChannelConfig.java lines 131–182

    @Override
    public <T> boolean setOption(ChannelOption<T> option, T value) {
        validate(option, value);

        if (option == SO_RCVBUF) {
            setReceiveBufferSize((Integer) value);
        } else if (option == SO_SNDBUF) {
            setSendBufferSize((Integer) value);
        } else if (option == TCP_NODELAY) {
            setTcpNoDelay((Boolean) value);
        } else if (option == SO_KEEPALIVE) {
            setKeepAlive((Boolean) value);
        } else if (option == SO_REUSEADDR) {
            setReuseAddress((Boolean) value);
        } else if (option == SO_LINGER) {
            setSoLinger((Integer) value);
        } else if (option == IP_TOS) {
            setTrafficClass((Integer) value);
        } else if (option == ALLOW_HALF_CLOSURE) {
            setAllowHalfClosure((Boolean) value);
        } else if (option == EpollChannelOption.TCP_CORK) {
            setTcpCork((Boolean) value);
        } else if (option == EpollChannelOption.TCP_NOTSENT_LOWAT) {
            setTcpNotSentLowAt((Long) value);
        } else if (option == EpollChannelOption.TCP_KEEPIDLE) {
            setTcpKeepIdle((Integer) value);
        } else if (option == EpollChannelOption.TCP_KEEPCNT) {
            setTcpKeepCnt((Integer) value);
        } else if (option == EpollChannelOption.TCP_KEEPINTVL) {
            setTcpKeepIntvl((Integer) value);
        } else if (option == EpollChannelOption.TCP_USER_TIMEOUT) {
            setTcpUserTimeout((Integer) value);
        } else if (option == EpollChannelOption.IP_BIND_ADDRESS_NO_PORT) {
            setIpBindAddressNoPort((Boolean) value);
        } else if (option == EpollChannelOption.IP_TRANSPARENT) {
            setIpTransparent((Boolean) value);
        } else if (option == EpollChannelOption.TCP_MD5SIG) {
            @SuppressWarnings("unchecked")
            final Map<InetAddress, byte[]> m = (Map<InetAddress, byte[]>) value;
            setTcpMd5Sig(m);
        } else if (option == EpollChannelOption.TCP_QUICKACK) {
            setTcpQuickAck((Boolean) value);
        } else if (option == ChannelOption.TCP_FASTOPEN_CONNECT) {
            setTcpFastOpenConnect((Boolean) value);
        } else if (option == EpollChannelOption.SO_BUSY_POLL) {
            setSoBusyPoll((Integer) value);
        } else {
            return super.setOption(option, value);
        }

        return true;
    }

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Frequently Asked Questions

What does setOption() do?
setOption() is a function in the netty codebase, defined in transport-classes-epoll/src/main/java/io/netty/channel/epoll/EpollSocketChannelConfig.java.
Where is setOption() defined?
setOption() is defined in transport-classes-epoll/src/main/java/io/netty/channel/epoll/EpollSocketChannelConfig.java at line 131.

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