Si vous avez de bonnes connaissances techniques (coroutines, threads, code bloquant, etc.) et êtes curieux de comment **FastAPI** gère `async def` versus le `def` classique, cette partie est faite pour vous.

///

### Fonctions de chemin

        // extend the command line to accept its own configuration parameters.
        //
        if (context.options().threads().isPresent()) {
            int degreeOfConcurrency =
                    calculateDegreeOfConcurrency(context.options().threads().get());
            if (degreeOfConcurrency > 1) {
                request.setBuilderId("multithreaded");

     * until we send the frame that acknowledges this new size.
     *
     * Since we can't ACK settings on the current reader thread (the reader thread can't write) we
     * execute all peer settings logic on the writer thread. This relies on the fact that the
     * writer task queue won't reorder tasks; otherwise settings could be applied in the opposite
     * order than received.
     */

   * {@code directExecutor} functions should avoid heavyweight operations inside {@code
   * AsyncFunction.apply}. Any heavyweight operations should occur in other threads responsible for
   * completing the returned {@code Future}.)
   *
   * <p>This method is similar to {@link java.util.concurrent.CompletableFuture#exceptionally}. It

    client,
    suggester.settings(),
    "content-index",        // source index
    "document"             // document type
);

suggester.indexer()
    .indexFromDocument(reader, 2, 100)  // threads=2, batch=100
    .getResponse();
```

### Index from Query Logs

```java
import org.codelibs.fess.suggest.index.contents.querylog.QueryLog;

// Add suggestions from search query logs

     * Sets the uncaught exception handler for this IndexUpdater thread.
     *
     * @param eh the uncaught exception handler to set
     */
    @Override
    public void setUncaughtExceptionHandler(final UncaughtExceptionHandler eh) {
        super.setUncaughtExceptionHandler(eh);
    }

    /**
     * Sets the default uncaught exception handler for all threads.
     *

  /**
   * Cached value of #publicSuffixIndex(). Do not use directly.
   *
   * <p>Since this field isn't {@code volatile}, if an instance of this class is shared across
   * threads before it is initialized, then each thread is likely to compute their own copy of the
   * value.
   */
  @SuppressWarnings("Immutable")
  @LazyInit
  private int publicSuffixIndexCache = SUFFIX_NOT_INITIALIZED;

  /**

 * evicted or manually invalidated. The common way to build instances is using {@link CacheBuilder}.
 *
 * <p>Implementations of this interface are expected to be thread-safe, and can be safely accessed
 * by multiple concurrent threads.
 *
 * @param <K> the type of the cache's keys, which are not permitted to be null
 * @param <V> the type of the cache's values, which are not permitted to be null
 * @author Charles Fry

    /**
     * Processes finished thread log events.
     *
     * @param objs the log objects
     */
    protected void processFinishedThread(final Object... objs) {
        // CrawlerContext crawlerContext = (CrawlerContext) objs[0];
    }

    /**
     * Processes no URL in queue log events.
     *
     * @param objs the log objects (should contain UrlQueue and thread check count)
     */

        urlFilter.init(sessionId);

        // Create multiple threads adding patterns
        Thread thread1 = new Thread(() -> {
            for (int i = 0; i < 100; i++) {
                urlFilter.addInclude("https://site" + i + ".com/.*");
            }
        });

        Thread thread2 = new Thread(() -> {
            for (int i = 0; i < 100; i++) {