}

func (b *streamingBitrotReader) Close() error {
	if b.rc == nil {
		return nil
	}
	if closer, ok := b.rc.(io.Closer); ok {
		// drain the body for connection reuse at network layer.
		xhttp.DrainBody(struct {
			io.Reader
			io.Closer
		}{
			Reader: b.rc,
			Closer: closeWrapper(func() error { return nil }),
		})
		return closer.Close()
	}
	return nil
}

	}

	// Delete the event from store.
	return target.store.Del(key.Name)
}

// Close - closes underneath connections to PostgreSQL database.
func (target *PostgreSQLTarget) Close() error {
	close(target.quitCh)
	if target.updateStmt != nil {
		// FIXME: log returned error. ignore time being.
		_ = target.updateStmt.Close()
	}

	if target.deleteStmt != nil {
		// FIXME: log returned error. ignore time being.

func (s *Sender[T]) Send(v T) bool {
	select {
	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.
func (s *Sender[T]) Close() {
	close(s.values)
}

// A Receiver receives values from a Sender.
type Receiver[T any] struct {
	values <-chan T
	done   chan<- bool
}

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

func (s *Sender[T]) Send(v T) bool {
	select {
	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.
func (s *Sender[T]) Close() {
	close(s.values)
}

// A Receiver receives values from a Sender.
type Receiver[T any] struct {
	values <-chan T
	done chan<- bool
}

   * This method returns true if the message was enqueued. Messages that would overflow the outgoing
   * message buffer will be rejected and trigger a [graceful shutdown][close] of this web socket.
   * This method returns false in that case, and in any other case where this web socket is closing,
   * closed, or canceled.
   *
   * This method returns immediately.
   */
  fun send(text: String): Boolean

  /**

        registry.getAll(String)
        registry.close()

        when:
        registry.get(String)

        then:
        IllegalStateException e = thrown()
        e.message == "TestRegistry has been closed."

        when:
        registry.getAll(String)

        then:
        e = thrown()
        e.message == "TestRegistry has been closed."
    }

}

type Netns interface {
	NetnsFd
	Inode() uint64
}
type NetnsCloser interface {
	io.Closer
	Netns
}

type NetnsWithFd struct {
	netns io.Closer
	fd    uintptr
	inode uint64
}

func (n *NetnsWithFd) Close() error {
	if n.netns == nil {
		return nil
	}

	ret := n.netns.Close()
	// set fd to invalid value, so if something uses it by mistake it will err
	uintZero := uintptr(0)

			addr := ln.Addr().String()
			conn1, err := Dial(network, addr)
			if err != nil {
				ln.Close()
				t.Fatal(err)
			}
			defer conn1.Close()
			// Now close the listener so the next Dial fails
			// keeping conn1 alive so the port is not made
			// available.
			ln.Close()

			maxElapsed := time.Second
			// The host can be heavy-loaded and take
			// longer than configured. Retry until

	if err != nil {
		return nil, err
	}
	ff, err := NewFatFile(f)
	if err != nil {
		f.Close()
		return nil, err
	}
	ff.closer = f
	return ff, nil
}

func (ff *FatFile) Close() error {
	var err error
	if ff.closer != nil {
		err = ff.closer.Close()
		ff.closer = nil
	}
	return err