newBuf := dst
	if len(dst) != len(p.readers) {
		newBuf = make([][]byte, len(p.readers))
	} else {
		for i := range newBuf {
			newBuf[i] = newBuf[i][:0]
		}
	}
	var newBufLK sync.RWMutex

	if p.offset+p.shardSize > p.shardFileSize {
		p.shardSize = p.shardFileSize - p.offset
	}
	if p.shardSize == 0 {
		return newBuf, nil
	}

                size += len;
                if (size == bufferSize) {
                    final char[] newBuf = new char[bufferSize + initialCapacity];
                    System.arraycopy(buf, 0, newBuf, 0, bufferSize);
                    buf = newBuf;
                    bufferSize += initialCapacity;
                }
            }
            return new String(buf, 0, size);

		return
	}

	// Create new buf and copy data over.
	newBuf := make([]T, len(q.buf)*2)
	pivot := q.start % len(q.buf)
	first, last := q.buf[pivot:], q.buf[:pivot]
	copy(newBuf[:len(first)], first)
	copy(newBuf[len(first):], last)

	// Update the queue state.
	q.start = 0
	q.end = len(q.buf)
	q.buf = newBuf
}

// pop removes an event from the front of the queue. If the

	// Convert to slice.
	dirs = dirs[:0]
	for dir := range foundDirs {
		dirs = append(dirs, dir)
	}
	if xl.data.remove(dirs...) {
		newBuf, err := xl.AppendTo(metaDataPoolGet())
		if err == nil {
			defer metaDataPoolPut(newBuf)
			return s.WriteAll(ctx, volume, pathJoin(path, xlStorageFormatFile), buf)
		}
	}
	return nil
}

func convertAccessError(err, permErr error) error {

var (
	errorTag = monitoring.CreateLabel(errorlabel)

	csrCounts = monitoring.NewSum(
		"citadel_server_csr_count",
		"The number of CSRs received by Citadel server.",
	)

	authnErrorCounts = monitoring.NewSum(
		"citadel_server_authentication_failure_count",
		"The number of authentication failures.",
	)

	csrParsingErrorCounts = monitoring.NewSum(
		"citadel_server_csr_parsing_err_count",

	nodeTag = monitoring.CreateLabel("node")
	typeTag = monitoring.CreateLabel("type")

	TotalXDSInternalErrors = monitoring.NewSum(
		"pilot_total_xds_internal_errors",
		"Total number of internal XDS errors in pilot.",
	)

	ExpiredNonce = monitoring.NewSum(
		"pilot_xds_expired_nonce",
		"Total number of XDS requests with an expired nonce.",
	)

}

func (h *header) unpack(msg []byte, off int) (int, error) {
	newOff := off
	var err error
	if h.id, newOff, err = unpackUint16(msg, newOff); err != nil {
		return off, &nestedError{"id", err}
	}
	if h.bits, newOff, err = unpackUint16(msg, newOff); err != nil {
		return off, &nestedError{"bits", err}
	}
	if h.questions, newOff, err = unpackUint16(msg, newOff); err != nil {
		return off, &nestedError{"questions", err}
	}

		[]float64{.1, .5, 1, 3, 5, 10, 20, 30},
	)

	pushContextErrors = monitoring.NewSum(
		"pilot_xds_push_context_errors",
		"Number of errors (timeouts) initiating push context.",
	)

	inboundUpdates = monitoring.NewSum(
		"pilot_inbound_updates",
		"Total number of updates received by pilot.",
	)

	pilotSDSCertificateErrors = monitoring.NewSum(
		"pilot_sds_certificate_errors_total",

package config

import (
	"context"
	"reflect"
	"testing"
)

func TestConfigurationChannels(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	mux := newMux(nil)
	channelOne := mux.ChannelWithContext(ctx, "one")
	if channelOne != mux.ChannelWithContext(ctx, "one") {
		t.Error("Didn't get the same muxuration channel back with the same name")
	}

func (m *PathRecorderMux) refreshMuxLocked() {
	newMux := &pathHandler{
		muxName:         m.name,
		pathToHandler:   map[string]http.Handler{},
		prefixHandlers:  []prefixHandler{},
		notFoundHandler: http.NotFoundHandler(),
	}
	if m.notFoundHandler != nil {
		newMux.notFoundHandler = m.notFoundHandler
	}
	for path, handler := range m.pathToHandler {
		newMux.pathToHandler[path] = handler
	}