Calls can be canceled from any thread. This will fail the call if it hasn’t yet completed! Code that is writing the request body or reading the response body will suffer an `IOException` when its call is canceled.

## Dispatch

For synchronous calls, you bring your own thread and are responsible for managing how many simultaneous requests you make. Too many simultaneous connections wastes resources; too few harms latency.

    MockWebServer server = new MockWebServer();
    server.useHttps(sslContext.getSocketFactory(), false);
    server.setDispatcher(this);
    server.start(port);
  }

  @Override public MockResponse dispatch(RecordedRequest request) {
    String path = request.getPath();
    try {
      if (!path.startsWith("/") || path.contains("..")) throw new FileNotFoundException();

      File file = new File(root + path);

            }

            @Override
            public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch)
                    throws java.io.IOException, ServletException {

                if (!isMultipartRequest(request) || !request.getMethod().equals(HttpMethods.POST)) {

public abstract class mockwebserver3/Dispatcher {
	public fun <init> ()V
	public abstract fun dispatch (Lmockwebserver3/RecordedRequest;)Lmockwebserver3/MockResponse;
	public fun peek ()Lmockwebserver3/MockResponse;
	public fun shutdown ()V
}

public final class mockwebserver3/MockResponse {
	public static final field Companion Lmockwebserver3/MockResponse$Companion;
	public fun <init> ()V
	public fun <init> (I)V
	public fun <init> (ILokhttp3/Headers;)V

public abstract class okhttp3/mockwebserver/Dispatcher {
	public fun <init> ()V
	public abstract fun dispatch (Lokhttp3/mockwebserver/RecordedRequest;)Lokhttp3/mockwebserver/MockResponse;
	public fun peek ()Lokhttp3/mockwebserver/MockResponse;
	public fun shutdown ()V
}

public final class okhttp3/mockwebserver/MockResponse : java/lang/Cloneable {
	public static final field Companion Lokhttp3/mockwebserver/MockResponse$Companion;

        event.setTrace(trace);
        event.setMetadata(metadata);
        event.setException(exception);
        event.setRepository(repository);

        repositoryEventDispatcher.dispatch(event.build());
    }

import java.io.IOException
import okhttp3.Protocol
import okio.BufferedSource

/**
 * [HTTP/2][Protocol.HTTP_2] only. Processes server-initiated HTTP requests on the client.
 * Implementations must quickly dispatch callbacks to avoid creating a bottleneck.
 *
 * While [onReset] may occur at any time, the following callbacks are expected in order,
 * correlated by stream ID.
 *
 *  * [onRequest]
 *  * [onHeaders] (unless canceled)

        event.setTrace(trace);
        event.setArtifact(artifact);
        event.setException(exception);

        repositoryEventDispatcher.dispatch(event.build());
    }

    private void invalidDescriptor(
            RepositorySystemSession session, RequestTrace trace, Artifact artifact, Exception exception) {

---

"_**Netflix** is pleased to announce the open-source release of our **crisis management** orchestration framework: **Dispatch**! [built with **FastAPI**]_"

<div style="text-align: right; margin-right: 10%;">Kevin Glisson, Marc Vilanova, Forest Monsen - <strong>Netflix</strong> <a href="https://netflixtechblog.com/introducing-dispatch-da4b8a2a8072" target="_blank"><small>(ref)</small></a></div>

---

      atomicRequestCount.incrementAndGet()
      requestQueue.add(request)

      if (request.failure != null) {
        return false // Nothing to respond to.
      }

      val response = dispatcher.dispatch(request)
      if (response.socketPolicy === DisconnectAfterRequest) {
        socket.close()
        return false
      }
      if (response.socketPolicy === HalfCloseAfterRequest) {