.apply {
        listeners += ::onEvent
      }

  val eventListener: EventListener
    get() = eventListenerAdapter

  var eventCount = 0

  private fun onEvent(callEvent: CallEvent) {
    if (eventCount++ == 0) {
      eventRecorder.logEvent(callEvent)
      val next = EventListenerRelay(call, eventRecorder)
      call.addEventListener(next.eventListener)
    }
  }

import java.util.concurrent.TimeUnit
import okhttp3.Call
import okhttp3.Connection
import okhttp3.Dispatcher
import okhttp3.EventListener
import okhttp3.Handshake
import okhttp3.HttpUrl
import okhttp3.OkHttpClient
import okhttp3.Protocol
import okhttp3.Request
import okhttp3.Response

/**
 * An OkHttp EventListener, which logs call events. Can be applied as an
 * [event listener factory][OkHttpClient.eventListenerFactory].
 *

  @StartStop
  private val server = MockWebServer()

  private var client =
    clientTestRule
      .newClientBuilder()
      .eventListener(listener)
      .build()

  class SocketClosingEventListener : EventListener() {
    var shouldClose: Boolean = false
    var lastSocket: Socket? = null

    override fun connectionAcquired(
      call: Call,
      connection: Connection,
    ) {

          listOf(
            ConnectionSpec
              .Builder(ConnectionSpec.MODERN_TLS)
              .supportsTlsExtensions(false)
              .build(),
          ),
        ).eventListener(
          object : EventListener() {
            override fun connectionAcquired(
              call: Call,
              connection: Connection,
            ) {
              val sslSocket = connection.socket() as SSLSocket

      if (proxiesOrNull.isNullOrEmpty()) return immutableListOf(Proxy.NO_PROXY)

      return proxiesOrNull.toImmutableList()
    }

    call.eventListener.proxySelectStart(call, url)
    proxies = selectProxies()
    nextProxyIndex = 0
    call.eventListener.proxySelectEnd(call, url, proxies)
  }

  /** Returns true if there's another proxy to try. */

import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.util.List;
import okhttp3.Call;
import okhttp3.Connection;
import okhttp3.EventListener;
import okhttp3.Handshake;
import okhttp3.HttpUrl;
import okhttp3.OkHttpClient;
import okhttp3.Protocol;
import okhttp3.Request;
import okhttp3.Response;

/**

 * The performance of these calls on the underlying network. If the network’s performance isn’t sufficient, you need to either improve the network or use less of it.

### EventListener

Subclass [EventListener](https://square.github.io/okhttp/3.x/okhttp/okhttp3/EventListener.html) and override methods for the events you are interested in. In a successful HTTP call with no redirects or retries the sequence of events is described by this flow.

import okhttp3.CallEvent.SecureConnectEnd
import okhttp3.CallEvent.SecureConnectStart

/**
 * This accepts events as function calls on [EventListener], and publishes them as subtypes of
 * [CallEvent].
 */
class EventListenerAdapter : EventListener() {
  var listeners = listOf<(CallEvent) -> Unit>()

  private fun onEvent(listener: CallEvent) {
    for (function in listeners) {
      function(listener)
    }

   */
  private val enforceOrder: Boolean = true,
) {
  private val eventListenerAdapter =
    EventListenerAdapter()
      .apply {
        listeners += ::logEvent
      }

  val eventListener: EventListener
    get() = eventListenerAdapter

  /** Events that haven't yet been removed. */
  val eventSequence: Deque<CallEvent> = ConcurrentLinkedDeque()

  /** The full set of events, used to match starts with ends. */

   */
  fun timeout(): Timeout

  /**
   * Configure this call to publish all future events to [eventListener], in addition to the
   * listeners configured by [OkHttpClient.Builder.eventListener] and other calls to this function.
   *
   * If this call is later [cloned][clone], [eventListener] will not be notified of its events.
   *