setIPv6() — netty Function Reference

Architecture documentation for the setIPv6() function in SockaddrIn.java from the netty codebase.

Function java Buffer Search calls 1 called by 1

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Buffer→ Search→ setIPv6() — netty Function Reference

Dependency Diagram

graph TD
  df536e25_4700_d8d0_415f_750f8d5a622e["setIPv6()"]
  0a4fbaf2_1e5c_bc5c_2cfb_5db23e53ba6c["SockaddrIn"]
  df536e25_4700_d8d0_415f_750f8d5a622e -->|defined in| 0a4fbaf2_1e5c_bc5c_2cfb_5db23e53ba6c
  505efae1_6ca9_d888_e0bd_f38ddda740d0["set()"]
  505efae1_6ca9_d888_e0bd_f38ddda740d0 -->|calls| df536e25_4700_d8d0_415f_750f8d5a622e
  66acc2f9_19b1_a6f4_38ea_a96b0fbdd651["handleNetworkOrder()"]
  df536e25_4700_d8d0_415f_750f8d5a622e -->|calls| 66acc2f9_19b1_a6f4_38ea_a96b0fbdd651
  style df536e25_4700_d8d0_415f_750f8d5a622e fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

transport-classes-io_uring/src/main/java/io/netty/channel/uring/SockaddrIn.java lines 103–132

    static int setIPv6(ByteBuffer memory, InetAddress address, int port) {
        int position = memory.position();
        memory.mark();
        try {
            // memset
            memory.put(SOCKADDR_IN6_EMPTY_ARRAY);
            memory.putShort(position + Native.SOCKADDR_IN6_OFFSETOF_SIN6_FAMILY, Native.AF_INET6);
            memory.putShort(position + Native.SOCKADDR_IN6_OFFSETOF_SIN6_PORT,
                    handleNetworkOrder(memory.order(), (short) port));
            // Skip sin6_flowinfo as we did memset before
            byte[] bytes = address.getAddress();
            int offset = Native.SOCKADDR_IN6_OFFSETOF_SIN6_ADDR + Native.IN6_ADDRESS_OFFSETOF_S6_ADDR;
            if (bytes.length == IPV4_ADDRESS_LENGTH) {
                memory.position(position + offset);
                memory.put(IPV4_MAPPED_IPV6_PREFIX);
                memory.put(bytes, 0, IPV4_ADDRESS_LENGTH);

                // Skip sin6_scope_id as we did memset before
            } else {
                memory.position(position + offset);
                memory.put(bytes, 0, IPV6_ADDRESS_LENGTH);

                memory.putInt(position + Native.SOCKADDR_IN6_OFFSETOF_SIN6_SCOPE_ID,
                        ((Inet6Address) address).getScopeId());
            }
            return Native.SIZEOF_SOCKADDR_IN6;
        } finally {
            memory.reset();
        }
    }