assertEquals(STRING, sink.getString());
  }

  public void testWriteFromStream_doesNotCloseThatStream() throws IOException {
    TestReader in = new TestReader();
    assertFalse(in.closed());
    sink.writeFrom(in);
    assertFalse(in.closed());
  }

  public void testWriteLines_withSpecificSeparator() throws IOException {
    sink.writeLines(ImmutableList.of("foo", "bar", "baz"), "\n");

func (c *gobServerCodec) Close() error {
	if c.closed {
		// Only call c.rwc.Close once; otherwise the semantics are undefined.
		return nil
	}
	c.closed = true
	return c.rwc.Close()
}

// ServeConn runs the server on a single connection.
// ServeConn blocks, serving the connection until the client hangs up.
// The caller typically invokes ServeConn in a go statement.

// closed. Pass NeverStop to if you don't want it stop.
func JitterUntil(f func(), period time.Duration, jitterFactor float64, sliding bool, stopCh <-chan struct{}) {
	BackoffUntil(f, NewJitteredBackoffManager(period, jitterFactor, &clock.RealClock{}), sliding, stopCh)
}

// BackoffUntil loops until stop channel is closed, run f every duration given by BackoffManager.
//
// If sliding is true, the period is computed after f runs. If it is false then

import (
	"testing"
)

func NewCloser(t *testing.T) *Closer {
	return &Closer{
		t: t,
	}
}

type Closer struct {
	wasCalled bool
	t         *testing.T
}

func (c *Closer) Close() error {
	c.wasCalled = true
	return nil
}

func (c *Closer) Check() *Closer {
	c.t.Helper()

	if !c.wasCalled {
		c.t.Error("expected closer to have been called")
	}

	return c

			err = syscall.ENOENT
		}
		return 0, err
	}
	return uintptr(fd), nil
}

func read(fd uintptr, buf []byte) (int, error) {
	return syscall.Read(syscall.Handle(fd), buf)
}

func closefd(fd uintptr) {
	syscall.Close(syscall.Handle(fd))
}

func preadn(fd uintptr, buf []byte, off int) error {
	whence := seekStart
	if off < 0 {
		whence = seekEnd
	}

  }

  @Throws(IOException::class)
  fun flush() {
    this.withLock {
      if (closed) throw IOException("closed")
      sink.flush()
    }
  }

  @Throws(IOException::class)
  fun rstStream(
    streamId: Int,
    errorCode: ErrorCode,
  ) {
    this.withLock {
      if (closed) throw IOException("closed")
      require(errorCode.httpCode != -1)

      frameHeader(

// The value will not be sent if the context is closed or the receiver
// is freed.
func (s *Sender[Elem]) Send(ctx context.Context, v Elem) bool {
	select {
	case <-ctx.Done():
		return false
	case s.values <- v:
		return true
	case <-s.done:
		return false
	}
}

// Close tells the receiver that no more values will arrive.
// After Close is called, the Sender may no longer be used.

	// that it won't add a terminal in the middle, but that would be pretty weird.)
	t.Run("pipe", func(t *testing.T) {
		r, w, err := os.Pipe()
		if err != nil {
			t.Fatalf("pipe failed: %s", err)
		}
		defer r.Close()
		defer w.Close()
		stdout, stderr := runTerminalPassthrough(t, r, w)
		if stdout {
			t.Errorf("stdout is unexpectedly a terminal")
		}
		if stderr {
			t.Errorf("stderr is unexpectedly a terminal")
		}
	})

// Run starts the server and waits for stopCh to be closed to close the server.
func (s *DebugSocket) Run(stopCh <-chan struct{}) error {
	if err := os.Remove(s.path); err != nil && !os.IsNotExist(err) {
		return fmt.Errorf("failed to remove (%v): %v", s.path, err)
	}

	l, err := net.Listen("unix", s.path)
	if err != nil {
		return fmt.Errorf("listen error (%v): %v", s.path, err)
	}
	defer l.Close()

	srv := http.Server{Handler: s.mux}

        Closer closer = Closer.create();
        closer.register(input);
        try {
            if (loaded) {
                throw new IllegalStateException("Build cache entry has already been read");
            }
            Files.asByteSink(file).writeFrom(input);
            loaded = true;
        } catch (Exception e) {
            throw closer.rethrow(e);
        } finally {