embeddedTcpServer() — netty Function Reference

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

Function java Buffer Allocators calls 4

Entity Profile

Buffer→ Allocators→ embeddedTcpServer() — netty Function Reference

Dependency Diagram

graph TD
  a98b7b6d_d138_64de_9c04_503805afe540["embeddedTcpServer()"]
  e9f4993c_4935_9405_4fab_0bbc9030a673["PcapWriteHandlerTest"]
  a98b7b6d_d138_64de_9c04_503805afe540 -->|defined in| e9f4993c_4935_9405_4fab_0bbc9030a673
  201e7e9e_c23c_b328_ecb1_117026fc1c03["InetSocketAddress()"]
  a98b7b6d_d138_64de_9c04_503805afe540 -->|calls| 201e7e9e_c23c_b328_ecb1_117026fc1c03
  a21dcafa_3fd5_25fa_9ab3_64ba75a8e86a["verifyTcpHandshakeCapture()"]
  a98b7b6d_d138_64de_9c04_503805afe540 -->|calls| a21dcafa_3fd5_25fa_9ab3_64ba75a8e86a
  d3cfaa8b_8ac2_24f3_97d5_6f3a794d3ad8["verifyTcpCapture()"]
  a98b7b6d_d138_64de_9c04_503805afe540 -->|calls| d3cfaa8b_8ac2_24f3_97d5_6f3a794d3ad8
  48f0964c_1c25_e316_603f_d8c514e3fbc2["verifyTcpCloseCapture()"]
  a98b7b6d_d138_64de_9c04_503805afe540 -->|calls| 48f0964c_1c25_e316_603f_d8c514e3fbc2
  style a98b7b6d_d138_64de_9c04_503805afe540 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

handler/src/test/java/io/netty/handler/pcap/PcapWriteHandlerTest.java lines 649–698

    @Test
    public void embeddedTcpServer() {
        final ByteBuf pcapBuffer = Unpooled.buffer();
        //Differing size payloads so that sequence numbers and ack numbers are different
        final ByteBuf readPayload = Unpooled.wrappedBuffer("Read".getBytes());
        final ByteBuf writePayload = Unpooled.wrappedBuffer("Write".getBytes());

        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, true)
                            .build(new ByteBufOutputStream(pcapBuffer))
            );

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

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

            assertFalse(embeddedChannel.finishAndReleaseAll());

            // Verify the capture data
            verifyTcpHandshakeCapture(true, pcapBuffer, serverAddr, clientAddr);

            //Verify server read
            verifyTcpCapture(pcapBuffer, readPayload,
                    serverAddr, clientAddr,
                    1, 1);

            //Verify server write
            verifyTcpCapture(pcapBuffer, writePayload,
                    clientAddr, serverAddr,
                    1, 5);

            verifyTcpCloseCapture(pcapBuffer, serverAddr, clientAddr,
                    5, 6); //Client has received 5 bytes and sent 4
        } finally {
            pcapBuffer.release();
            readPayload.release();
            writePayload.release();
        }
    }

Domain

Buffer

Subdomains

Allocators

Defined In

handler/src/test/java/io/netty/handler/pcap/PcapWriteHandlerTest.java

Calls

Source

View on GitHub

Frequently Asked Questions

What does embeddedTcpServer() do?

embeddedTcpServer() is a function in the netty codebase, defined in handler/src/test/java/io/netty/handler/pcap/PcapWriteHandlerTest.java.

Where is embeddedTcpServer() defined?

embeddedTcpServer() is defined in handler/src/test/java/io/netty/handler/pcap/PcapWriteHandlerTest.java at line 649.

What does embeddedTcpServer() call?

embeddedTcpServer() calls 4 function(s): InetSocketAddress, verifyTcpCapture, verifyTcpCloseCapture, verifyTcpHandshakeCapture.

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