/** Returns the SSL socket factory, or null if this is not an HTTPS address. */
  @get:JvmName("sslSocketFactory") val sslSocketFactory: SSLSocketFactory?,
  /** Returns the hostname verifier, or null if this is not an HTTPS address. */
  @get:JvmName("hostnameVerifier") val hostnameVerifier: HostnameVerifier?,
  /** Returns this address's certificate pinner, or null if this is not an HTTPS address. */

  }

  /**
   * Sets a policy that applies to [address].
   * Overwrites any existing policy for that address.
   */
  @ExperimentalOkHttpApi
  fun setPolicy(
    address: Address,
    policy: AddressPolicy,
  ) {
    delegate.setPolicy(address, policy)
  }

  /**
   * A policy for how the pool should treat a specific address.
   */
  class AddressPolicy(
    /**

 * or to force a specific known IP address.
 *
 * Implementations of this interface must be safe for concurrent use.
 */
fun interface Dns {
  /**
   * Returns the IP addresses of `hostname`, in the order they will be attempted by OkHttp. If a
   * connection to an address fails, OkHttp will retry the connection with the next address until

package okhttp3.internal

import java.net.InetAddress
import okhttp3.Dns

/**
 * A network that always resolves two IP addresses per host. Use this when testing route selection
 * fallbacks to guarantee that a fallback address is available.
 */
class DoubleInetAddressDns : Dns {
  override fun lookup(hostname: String): List<InetAddress> {
    val addresses = Dns.SYSTEM.lookup(hostname)
    return listOf(addresses[0], addresses[0])
  }

      proxySelector = proxySelector,
    )
  }

  fun newRoute(
    address: Address = newAddress(),
    proxy: Proxy = this.proxy,
    socketAddress: InetSocketAddress = InetSocketAddress.createUnresolved(uriHost, uriPort),
  ): Route {
    return Route(
      address = address,
      proxy = proxy,
      socketAddress = socketAddress,
    )
  }

import okhttp3.internal.connection.RoutePlanner.ConnectResult
import okhttp3.internal.connection.RoutePlanner.Plan
import okhttp3.internal.okHttpName

/**
 * Speculatively connects to each IP address of a target address, returning as soon as one of them
 * connects successfully. This kicks off new attempts every 250 ms until a connect succeeds.
 */
internal class FastFallbackExchangeFinder(
  override val routePlanner: RoutePlanner,

      this.endpoint = (InetSocketAddress) endpoint;

      UnixSocketAddress address = new UnixSocketAddress(path);
      serverSocketChannel = UnixServerSocketChannel.open();
      serverSocketChannel.configureBlocking(true);
      serverSocketChannel.socket().bind(address);
    }

    @Override public int getLocalPort() {
      return 1; // A white lie. There is no local port.
    }

    val InetSocketAddress.socketHost: String get() {
      // The InetSocketAddress was specified with a string (either a numeric IP or a host name). If
      // it is a name, all IPs for that name should be tried. If it is an IP address, only that IP
      // address should be tried.
      val address = address ?: return hostName

   * is null, the proxy selector is used.
   */
  @get:JvmName("proxy") val proxy: Proxy,
  @get:JvmName("socketAddress") val socketAddress: InetSocketAddress,
) {
  @JvmName("-deprecated_address")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "address"),
    level = DeprecationLevel.ERROR,
  )
  fun address(): Address = address

When you request a URL with OkHttp, here's what it does:

 1. It uses the URL and configured OkHttpClient to create an **address**. This address specifies how we'll connect to the webserver.
 2. It attempts to retrieve a connection with that address from the **connection pool**.