length = byteCount,
      type = TYPE_DATA,
      flags = flags,
    )
    if (byteCount > 0) {
      sink.write(buffer!!, byteCount.toLong())
    }
  }

  /** Write okhttp's settings to the peer. */
  @Throws(IOException::class)
  fun settings(settings: Settings) {
    withLock {
      if (closed) throw IOException("closed")
      frameHeader(
        streamId = 0,
        length = settings.size() * 6,

                // drop through...
            }
        }

        // assume custom type is in same class space as default
        final ClassLoader peer = defaultClazz.getClassLoader();
        if (peer != null) {
            try {
                return peer.loadClass(name);
            } catch (final Exception e) {
                // drop through...
            } catch (final LinkageError e) {

)

var (
	processLocksReadTotalMD           = NewGaugeMD(processLocksReadTotal, "Number of current READ locks on this peer")
	processLocksWriteTotalMD          = NewGaugeMD(processLocksWriteTotal, "Number of current WRITE locks on this peer")
	processCPUTotalSecondsMD          = NewCounterMD(processCPUTotalSeconds, "Total user and system CPU time spent in seconds")

	// Response request id.
	AmzRequestID     = "x-amz-request-id"
	AmzRequestHostID = "x-amz-id-2"

	// Deployment id.
	MinioDeploymentID = "x-minio-deployment-id"

	// Peer call
	MinIOPeerCall = "x-minio-from-peer"

	// Server-Status
	MinIOServerStatus = "x-minio-server-status"

	// Content Checksums
	AmzChecksumAlgo           = "x-amz-checksum-algorithm"

    fun ackSettings()

    /**
     * Read a connection-level ping from the peer. `ack` indicates this is a reply. The data
     * in `payload1` and `payload2` opaque binary, and there are no rules on the content.
     */
    fun ping(
      ack: Boolean,
      payload1: Int,
      payload2: Int,
    )

    /**
     * The peer tells us to stop creating streams. It is safe to replay streams with

  private var enqueuedClose = false

  /** The close code from the peer, or -1 if this web socket has not yet read a close frame. */
  private var receivedCloseCode = -1

  /** The close reason from the peer, or null if this web socket has not yet read a close frame. */
  private var receivedCloseReason: String? = null

}

// getRemoteARNForPeer returns the remote target for a peer site in site replication
func (sys *BucketTargetSys) getRemoteARNForPeer(bucket string, peer madmin.PeerInfo) string {
	sys.RLock()
	defer sys.RUnlock()
	tgts := sys.targetsMap[bucket]
	for _, target := range tgts {
		ep, _ := url.Parse(peer.Endpoint)
		if target.SourceBucket == bucket &&
			target.TargetBucket == bucket &&

    return result
  }

  class Builder {
    internal val namesAndValues: MutableList<String> = ArrayList(20)

    /**
     * Add a header line without any validation. Only appropriate for headers from the remote peer
     * or cache.
     */
    internal fun addLenient(line: String) =
      apply {
        val index = line.indexOf(':', 1)
        when {
          index != -1 -> {

      for (Certificate certificate : chain.connection().handshake().peerCertificates()) {
        String pin = CertificatePinner.pin(certificate);
        if (denylist.contains(pin)) {
          throw new IOException("Denylisted peer certificate: " + pin);
        }
      }
      return chain.proceed(chain.request());
    }
  };

  private final OkHttpClient client = new OkHttpClient.Builder()

//
// This is intended to be used when a peer failure is detected.
TF_CAPI_EXPORT extern void TFE_AbortCollectiveOps(TFE_Context* ctx,
                                                  TF_Status* status);

// Checks the health of collective ops peers. Explicit health check is needed in
// multi worker collective ops to detect failures in the cluster.  If a peer is
// down, collective ops may hang.