import (
	"fmt"

	"github.com/smallnest/ringbuffer"
)

func main() {
	rb := ringbuffer.New(1024)

	// write
	rb.Write([]byte("abcd"))
	fmt.Println(rb.Length())
	fmt.Println(rb.Free())

	// read
	buf := make([]byte, 4)
	rb.Read(buf)
	fmt.Println(string(buf))
}
```

It is possible to use an existing buffer with by replacing `New` with `NewBuffer`.


# Blocking vs Non-blocking

        }

        this.macSigningKey = macSigningKey;
        this.bypass = bypass;
        this.updates = 0;
        this.signSequence = 0;

        if (LogStream.level >= 5) {
            log.println("macSigningKey:");
            Hexdump.hexdump(log, macSigningKey, 0, macSigningKey.length);
        }
    }

    /**
     * Constructs a new signing digest using transport and authentication credentials.
     *

  val request = createRequest()

  try {
    val response = client!!.newCall(request).execute()
    if (showHeaders) {
      println(StatusLine.get(response))
      val headers = response.headers
      for ((name, value) in headers) {
        println("$name: $value")
      }
      println()
    }

    // Stream the response to the System.out as it is returned from the server.
    val out = System.out.sink()

    public void testGetDecimalFormatSymbols() throws Exception {
        final DecimalFormatSymbols symbols = DecimalFormatSymbolsUtil.getDecimalFormatSymbols(Locale.GERMAN);
        System.out.println("DecimalSeparator:" + symbols.getDecimalSeparator());
        System.out.println("GroupingSeparator:" + symbols.getGroupingSeparator());
    }

     * @return the overall result of all strategy executions
     */
    public UpgradeResult executeStrategies(UpgradeContext context, Map<Path, Document> pomMap) {
        context.println();
        context.info("Maven Upgrade Tool");
        logUpgradeOptions(context);

        UpgradeResult overallResult = UpgradeResult.empty();

        // Filter and execute applicable strategies

    client.newCall(request).execute().use { response ->
      if (!response.isSuccessful) throw IOException("Unexpected code $response")

      for ((name, value) in response.headers) {
        println("$name: $value")
      }

      println(response.body.string())
    }
  }
}

fun main() {
  SynchronousGet().run()

        writer.print(problems.size());
        writer.print((problems.size() == 1) ? " problem was " : " problems were ");
        writer.print("encountered while building the effective settings");
        writer.println();

        for (SettingsProblem problem : problems) {
            writer.print("[");
            writer.print(problem.getSeverity());
            writer.print("] ");

        } else if (platformSystemProperty == JDK8_ALPN_PROPERTY) {
          if (!isAlpnBootEnabled()) {
            System.err.println("Warning: ALPN Boot not enabled")
          }
        } else if (platformSystemProperty == JDK8_PROPERTY) {
          if (isAlpnBootEnabled()) {
            System.err.println("Warning: ALPN Boot enabled unintentionally")
          }

      Request
        .Builder()
        .url(HOST + path)
        .build()
    return client.newWebSocket(request, listener)
  }

  fun run() {
    try {
      val count = getTestCount()
      println("Test count: $count")
      for (number in 1..count) {
        runTest(number, count)
      }
      updateReports()
    } finally {
      client.dispatcher.executorService.shutdown()
    }
  }

     * Test method for {@link org.codelibs.core.net.UuidUtil#create()}.
     */
    public void testCreate() {
        final String uuid = UuidUtil.create();
        System.out.println(uuid);
        final String uuid2 = UuidUtil.create();
        System.out.println(uuid2);
        assertFalse(uuid.equals(uuid2));
    }