// Buffered returns the number of bytes that can be read from the current buffer.
func (b *Reader) Buffered() int { return b.w - b.r }

// ReadSlice reads until the first occurrence of delim in the input,
// returning a slice pointing at the bytes in the buffer.
// The bytes stop being valid at the next read.
// If ReadSlice encounters an error before finding a delimiter,
// it returns all the data in the buffer and the error itself (often io.EOF).

      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,

      client.newBuilder()
        .readTimeout(500, TimeUnit.MILLISECONDS)
        .build()
    try {
      client1.newCall(request).execute().use { response ->
        println("Response 1 succeeded: $response")
      }
    } catch (e: IOException) {
      println("Response 1 failed: $e")
    }

    // Copy to customize OkHttp for this request.
    val client2 =
      client.newBuilder()

        .readTimeout(500, TimeUnit.MILLISECONDS)
        .build();
    try (Response response = client1.newCall(request).execute()) {
      System.out.println("Response 1 succeeded: " + response);
    } catch (IOException e) {
      System.out.println("Response 1 failed: " + e);
    }

    // Copy to customize OkHttp for this request.
    OkHttpClient client2 = client.newBuilder()

        System.out.println("\n\n");
        System.out.println("Parent SCM URL is: " + project0.getScm().getUrl());
        System.out.println("Child SCM URL is: " + project1.getScm().getUrl());
        System.out.println();
        System.out.println("Parent SCM connection is: " + project0.getScm().getConnection());
        System.out.println("Child SCM connection is: " + project1.getScm().getConnection());

        final String s = MessageFormatter.getMessage("EMSG0000");
        System.out.println(s);
        assertThat(s, is("[EMSG0000]test"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testGetMessageWithArgs() throws Exception {
        final String s = MessageFormatter.getMessage("EMSG0001", "hoge");
        System.out.println(s);
        assertThat(s, is("[EMSG0001]hogeが見つかりません"));
    }

    /**

          if (response.request().header("Authorization") != null) {
            return null; // Give up, we've already attempted to authenticate.
          }

          System.out.println("Authenticating for response: " + response);
          System.out.println("Challenges: " + response.challenges());
          String credential = Credentials.basic("jesse", "password1");
          return response.request().newBuilder()

/**
 * Validates which environment is used by the IDE.
 */
class PlatformRuleTest {
  @RegisterExtension @JvmField
  val platform = PlatformRule()

  @Test
  fun testMode() {
    println(PlatformRule.getPlatformSystemProperty())
    println(Platform.get().javaClass.simpleName)
  }

  @Test
  fun testGreenCase() {
  }

  @Test
  fun testGreenCaseFailingOnLater() {

        for (final Throwable t : throwables) {
            s.println("Caused " + count + ":");
            t.printStackTrace(s);
            count++;
        }
    }

    @Override
    public void printStackTrace(final PrintWriter s) {
        super.printStackTrace(s);

        int count = 1;
        for (final Throwable t : throwables) {
            s.println("Caused " + count + ":");
            t.printStackTrace(s);

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