{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

Using `check_same_thread=False` allows FastAPI to use the same SQLite database in different threads. This is necessary as **one single request** could use **more than one thread** (for example in dependencies).

Die Verwendung von `check_same_thread=False` erlaubt FastAPI, dieselbe SQLite-Datenbank in verschiedenen Threads zu verwenden. Dies ist notwendig, da **ein einzelner <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr>** **mehr als einen Thread** verwenden könnte (zum Beispiel in Abhängigkeiten).

import com.google.caliper.Param;
import com.google.common.primitives.Ints;
import java.util.Random;
import java.util.concurrent.atomic.AtomicLong;
import org.jspecify.annotations.NullUnmarked;

/**
 * Single-threaded benchmark for {@link LoadingCache}.
 *
 * @author Charles Fry
 */
@NullUnmarked
public class LoadingCacheSingleThreadBenchmark {
  @Param({"1000", "2000"})
  int maximumSize;

  @Param("5000")

        ThreadFactory threadFactory = r -> {
            Thread t = new Thread(r, "ResourceManager-Cleanup");
            t.setDaemon(true);
            return t;
        };
        cleanupExecutor = Executors.newSingleThreadScheduledExecutor(threadFactory);

        // Add shutdown hook for cleanup
        Runtime.getRuntime().addShutdownHook(new Thread(this::shutdown, "ResourceManager-Shutdown"));

            while (crawler.crawlerContext.getStatus() != CrawlerStatus.RUNNING && System.currentTimeMillis() - startTime < 5000) {
                try {
                    Thread.sleep(50);
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                    break;
                }
            }
            assertEquals(CrawlerStatus.RUNNING, crawler.crawlerContext.getStatus());

 * under the License.
 */

/**
 * Provides an immutable XML processing API for Maven, offering classes and interfaces
 * for reading, manipulating, and writing XML documents in a thread-safe manner.
 * This package is used extensively for POM, settings, and other Maven configuration files.
 *
 * @since 4.0.0
 */

    val response = client.newCall(request).execute()

    response.use {
      assertEquals(200, response.code)
    }

    while (client.connectionPool.connectionCount() > 0) {
      Thread.sleep(1000)
    }
  }

  @Test
  fun testHttpRequest() {
    server.enqueue(MockResponse())
    server.start()

    val request = Request.Builder().url(server.url("/")).build()

 * the License.
 */

package com.google.common.util.concurrent;

import static com.google.common.base.Preconditions.checkNotNull;
import static java.lang.Thread.currentThread;

import com.google.common.annotations.GwtCompatible;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

 * the License.
 */

package com.google.common.util.concurrent;

import static com.google.common.base.Preconditions.checkNotNull;
import static java.lang.Thread.currentThread;

import com.google.common.annotations.GwtCompatible;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

    public Optional<Boolean> alsoMakeDependents() {
        return returnFirstPresentOrEmpty(MavenOptions::alsoMakeDependents);
    }

    @Override
    public Optional<String> threads() {
        return returnFirstPresentOrEmpty(MavenOptions::threads);
    }

    @Override
    public Optional<String> builder() {
        return returnFirstPresentOrEmpty(MavenOptions::builder);
    }

    @Override