// Close when we reach 0
	globalServiceFreezeCnt--
	if globalServiceFreezeCnt <= 0 {
		// Set to a nil channel.
		var _ch chan struct{}
		if val := globalServiceFreeze.Swap(_ch); val != nil {
			if ch, ok := val.(chan struct{}); ok && ch != nil {
				// Close previous non-nil channel.
				xioutil.SafeClose(ch)
			}
		}
		globalServiceFreezeCnt = 0 // Don't risk going negative.
	}

func (target *AMQPTarget) isActive() (bool, error) {
	ch, _, err := target.channel()
	if err != nil {
		return false, err
	}
	defer func() {
		ch.Close()
	}()
	return true, nil
}

func (target *AMQPTarget) channel() (*amqp091.Channel, chan amqp091.Confirmation, error) {
	var err error
	var conn *amqp091.Connection
	var ch *amqp091.Channel

	isAMQPClosedErr := func(err error) bool {

type Stream struct {
	// responses from the remote server.
	// Channel will be closed after error or when remote closes.
	// All responses *must* be read by the caller until either an error is returned or the channel is closed.
	// Canceling the context will cause the context cancellation error to be returned.
	responses <-chan Response
	cancel    context.CancelCauseFunc

	// Requests sent to the server.

		return len(p), nil
	case <-w.ctx.Done():
		return 0, context.Cause(w.ctx)
	}
}

// WriterToChannel will return an io.Writer that writes to the given channel.
// The context both allows returning errors on writes and to ensure that
// this isn't abandoned if the channel is no longer being read from.
func WriterToChannel(ctx context.Context, ch chan<- []byte) io.Writer {
	return &writerWrapper{ch: ch, ctx: ctx}
}

			Description: "Number of events per HTTP send to webhook target",
			Optional:    true,
			Type:        "number",
		},
		config.HelpKV{
			Key:         QueueSize,
			Description: "configure channel queue size for webhook targets",
			Optional:    true,
			Type:        "number",
		},
		config.HelpKV{
			Key:         QueueDir,
			Description: `staging dir for undelivered logger messages e.g. '/home/logger-events'`,

		Info: dataUsageCacheInfo{
			Name:      dataUsageRoot,
			NextCycle: oldCache.Info.NextCycle,
		},
		Cache: make(map[string]dataUsageEntry, len(oldCache.Cache)),
	}

	// Put all buckets into channel.
	bucketCh := make(chan BucketInfo, len(buckets))

	// Shuffle buckets to ensure total randomness of buckets, being scanned.
	// Otherwise same set of buckets get scanned across erasure sets always.

	dw := &DeadlineWorker{
		timeout: timeout,
	}
	return dw
}

// Run runs the given function, passing it a stopper channel. If the deadline passes before
// the function finishes executing, Run returns context.DeadlineExceeded to the caller.
// channel so that the work function can attempt to exit gracefully.
// Multiple calls to Run will run independently of each other.

				return
			}
			// Send new ping.
			gridLogIf(m.ctx, m.send(message{Op: OpPing, MuxID: m.MuxID}))
		}
	}
}

// responseCh is the channel to that goes to the requester.
// internalResp is the channel that comes from the server.
func (m *muxClient) handleTwowayResponses(responseCh chan<- Response, internalResp <-chan Response) {
	defer m.parent.deleteMux(false, m.MuxID)

//	specified number of elements. The size may be omitted, in which case
//	a small starting size is allocated.
//	Channel: The channel's buffer is initialized with the specified
//	buffer capacity. If zero, or the size is omitted, the channel is
//	unbuffered.
func make(t Type, size ...IntegerType) Type

// The max built-in function returns the largest value of a fixed number of

		if err != nil {
			return err
		}
		if w.reuseBlocks || o.reusable {
			metaDataPoolPut(o.metadata)
		}
	}

	return nil
}

// stream entries to the output.
// The returned channel should be closed when done.
// Any error is reported when closing the metacacheWriter.
func (w *metacacheWriter) stream() (chan<- metaCacheEntry, error) {
	if w.creator != nil {
		err := w.creator()
		w.creator = nil