/**
     * Apply inbound settings and send an acknowledgement to the peer that provided them.
     *
     * We need to apply the settings and ack them atomically. This is because some HTTP/2
     * implementations (nghttp2) forbid peers from taking advantage of settings before they have
     * acknowledged! In particular, we shouldn't send frames that assume a new `initialWindowSize`
     * until we send the frame that acknowledges this new size.

_2016-02-06_

 *  Fix: Permit the trusted CA root to be pinned by `CertificatePinner`.


## Version 2.7.2

_2016-01-07_

 *  Fix: Don't eagerly release stream allocations on cache hits. We might still
    need them to handle redirects.


## Version 2.7.1

_2016-01-01_

 *  Fix: Don't do a health check on newly-created connections. This is
    unnecessary work that could put the client in an inconsistent state if the

  override fun send(text: String): Boolean {
    return send(text.encodeUtf8(), OPCODE_TEXT)
  }

  override fun send(bytes: ByteString): Boolean {
    return send(bytes, OPCODE_BINARY)
  }

  @Synchronized private fun send(
    data: ByteString,
    formatOpcode: Int,
  ): Boolean {
    // Don't send new frames after we've failed or enqueued a close frame.

    userRequest: Request,
    requestSendStarted: Boolean,
  ): Boolean {
    // The application layer has forbidden retries.
    if (!client.retryOnConnectionFailure) return false

    // We can't send the request body again.
    if (requestSendStarted && requestIsOneShot(e, userRequest)) return false

    // This exception is fatal.
    if (!isRecoverable(e, requestSendStarted)) return false

      }
    }

  companion object {
    /**
     * The "mixed" subtype of "multipart" is intended for use when the body parts are independent
     * and need to be bundled in a particular order. Any "multipart" subtypes that an implementation
     * does not recognize must be treated as being of subtype "mixed".
     */
    @JvmField
    val MIXED = "multipart/mixed".toMediaType()

    val webSocket =
      object : WebSocket {
        override fun request(): Request = TODO()

        override fun queueSize(): Long = TODO()

        override fun send(text: String): Boolean = TODO()

        override fun send(bytes: ByteString): Boolean = TODO()

        override fun close(
          code: Int,
          reason: String?,
        ): Boolean = TODO()

   1EDC; 1EDD; Case map
   1EDE; 1EDF; Case map
   1EE0; 1EE1; Case map
   1EE2; 1EE3; Case map
   1EE4; 1EE5; Case map
   1EE6; 1EE7; Case map
   1EE8; 1EE9; Case map
   1EEA; 1EEB; Case map
   1EEC; 1EED; Case map
   1EEE; 1EEF; Case map
   1EF0; 1EF1; Case map
   1EF2; 1EF3; Case map
   1EF4; 1EF5; Case map
   1EF6; 1EF7; Case map
   1EF8; 1EF9; Case map
   1F08; 1F00; Case map
   1F09; 1F01; Case map

    if (frameLength > 0L) {
      source.readFully(controlFrameBuffer, frameLength)

      if (!isClient) {
        controlFrameBuffer.readAndWriteUnsafe(maskCursor!!)
        maskCursor.seek(0)
        toggleMask(maskCursor, maskKey!!)
        maskCursor.close()
      }
    }

    when (opcode) {
      OPCODE_CONTROL_PING -> {

   *
   * @param domain A canonicalized domain. An International Domain Name (IDN) should be punycode
   *     encoded.
   */
  fun getEffectiveTldPlusOne(domain: String): String? {
    // We use UTF-8 in the list so we need to convert to Unicode.
    val unicodeDomain = IDN.toUnicode(domain)
    val domainLabels = splitDomain(unicodeDomain)

    val rule = findMatchingRule(domainLabels)

    // Find the longest-idle connections in 2 categories:
    //
    //  1. OLD: Connections that have been idle for at least keepAliveDurationNs. We close these if
    //     we find them, regardless of what the address policies need.
    //
    //  2. EVICTABLE: Connections not required by any address policy. This matches connections that
    //     don't participate in any policy, plus connections whose policies won't be violated if the