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tcpZeroByteDiscarded() — netty Function Reference

Architecture documentation for the tcpZeroByteDiscarded() function in PcapWriteHandlerTest.java from the netty codebase.

Function java Buffer Allocators calls 3

Entity Profile

Dependency Diagram

graph TD
  f687d827_4bea_c30d_cc67_47c4b3263d1f["tcpZeroByteDiscarded()"]
  e9f4993c_4935_9405_4fab_0bbc9030a673["PcapWriteHandlerTest"]
  f687d827_4bea_c30d_cc67_47c4b3263d1f -->|defined in| e9f4993c_4935_9405_4fab_0bbc9030a673
  201e7e9e_c23c_b328_ecb1_117026fc1c03["InetSocketAddress()"]
  f687d827_4bea_c30d_cc67_47c4b3263d1f -->|calls| 201e7e9e_c23c_b328_ecb1_117026fc1c03
  a21dcafa_3fd5_25fa_9ab3_64ba75a8e86a["verifyTcpHandshakeCapture()"]
  f687d827_4bea_c30d_cc67_47c4b3263d1f -->|calls| a21dcafa_3fd5_25fa_9ab3_64ba75a8e86a
  48f0964c_1c25_e316_603f_d8c514e3fbc2["verifyTcpCloseCapture()"]
  f687d827_4bea_c30d_cc67_47c4b3263d1f -->|calls| 48f0964c_1c25_e316_603f_d8c514e3fbc2
  style f687d827_4bea_c30d_cc67_47c4b3263d1f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

handler/src/test/java/io/netty/handler/pcap/PcapWriteHandlerTest.java lines 789–825

    @Test
    public void tcpZeroByteDiscarded() {
        final ByteBuf pcapBuffer = Unpooled.buffer();
        final ByteBuf payload = Unpooled.buffer();

        try {
            InetSocketAddress serverAddr = new InetSocketAddress("1.1.1.1", 1234);
            InetSocketAddress clientAddr = new InetSocketAddress("2.2.2.2", 3456);

            EmbeddedChannel embeddedChannel = new EmbeddedChannel(
                    PcapWriteHandler.builder()
                            .forceTcpChannel(serverAddr, clientAddr, false)
                            .build(new ByteBufOutputStream(pcapBuffer))
            );

            assertTrue(embeddedChannel.writeOutbound(payload.retainedDuplicate()));
            ByteBuf read = embeddedChannel.readOutbound();
            assertEquals(payload, read);
            read.release();

            assertTrue(embeddedChannel.writeInbound(payload.retainedDuplicate()));
            read = embeddedChannel.readInbound();
            assertEquals(payload, read);
            read.release();

            assertFalse(embeddedChannel.finishAndReleaseAll());

            //Verify client discard empty payloads. Pcap should only contain header, syn, and fin messages

            verifyTcpHandshakeCapture(true, pcapBuffer, serverAddr, clientAddr);
            verifyTcpCloseCapture(pcapBuffer, serverAddr, clientAddr,
                    1, 1);
        } finally {
            pcapBuffer.release();
            payload.release();
        }
    }

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does tcpZeroByteDiscarded() do?
tcpZeroByteDiscarded() is a function in the netty codebase, defined in handler/src/test/java/io/netty/handler/pcap/PcapWriteHandlerTest.java.
Where is tcpZeroByteDiscarded() defined?
tcpZeroByteDiscarded() is defined in handler/src/test/java/io/netty/handler/pcap/PcapWriteHandlerTest.java at line 789.
What does tcpZeroByteDiscarded() call?
tcpZeroByteDiscarded() calls 3 function(s): InetSocketAddress, verifyTcpCloseCapture, verifyTcpHandshakeCapture.

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