Go

TCP Socket Send Byte and Receive Byte

Demonstrates the Chilkat Socket ReceiveByte and SendByte method. Go

    success := false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    sock := chilkat.NewSocket()

    // --------------------------------------------------------------------
    // This example uses the public TCP echo service at https://tcpbin.com/
    // --------------------------------------------------------------------

    useTls := false
    port := 4242
    maxWaitMs := 5000
    success = sock.Connect("tcpbin.com",port,useTls,maxWaitMs)
    if success == false {
        fmt.Println(sock.LastErrorText())
        sock.DisposeSocket()
        return
    }

    // Wait a max of 2 seconds for a response..
    sock.SetMaxReadIdleMs(2000)

    // Send a byte.
    sock.SendByte(96)

    // The tcpbin.com echo server only echoes after receiving an LF (linefeed char)
    sock.SendByte(10)

    // The echo server will echo back whatever is sent to it.
    // We should be able to read the same byte back..
    // After successfully reading, the byte value is available in the ReceivedInt property.
    treatAsUnsignedInt := true
    success = sock.ReceiveByte(treatAsUnsignedInt)
    if success == false {
        fmt.Println(sock.LastErrorText())
        sock.DisposeSocket()
        return
    }

    // Let's look at the value of the byte received.  It should be 96.
    fmt.Println(sock.ReceivedInt())

    // The echo server also echoed the LF back.
    success = sock.ReceiveByte(treatAsUnsignedInt)
    // Assuming success..

    // Should be decimal 10.
    fmt.Println(sock.ReceivedInt())

    sock.DisposeSocket()