import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * A ScheduledExecutorService that executes all scheduled actions immediately in the calling thread.
 *
 * <p>See {@link TestingExecutors#sameThreadScheduledExecutor()} for a full list of constraints.
 *
 * @author John Sirois
 * @author Zach van Schouwen
 */
@GwtIncompatible

import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * A ScheduledExecutorService that executes all scheduled actions immediately in the calling thread.
 *
 * <p>See {@link TestingExecutors#sameThreadScheduledExecutor()} for a full list of constraints.
 *
 * @author John Sirois
 * @author Zach van Schouwen
 */
@GwtIncompatible

///

Event loop'u bloke etmemek için, *path operation function*'ı `async def` yerine normal `def` ile tanımlayabilirsiniz; böylece FastAPI ana döngüyü bloke etmemek için bunu bir thread pool worker (iş parçacığı havuzu çalışanı) üzerinde çalıştırır.

{* ../../docs_src/stream_data/tutorial002_py310.py ln[30:34] hl[31] *}

/// tip | İpucu

        return name.endsWith(".log") || name.endsWith(".log.gz");
    }

    /**
     * Rebuilds selected configuration indices with the latest mappings.
     * Executes asynchronously in a background thread.
     *
     * @param form the action form containing the target index checkboxes and loadBulkData flag
     * @return HTML response redirecting to the maintenance page
     */
    @Execute
    @Secured({ ROLE })

            log.trace("Acquire tree " + usage + " " + this);
        }

        if (track && this.traceResource) {
            synchronized (this.acquires) {
                this.acquires.add(truncateTrace(Thread.currentThread().getStackTrace()));
            }
        }

        if (usage == 1) {
            synchronized (this) {
                if (this.sessionAcquired.compareAndSet(false, true)) {

        // 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");

 * abused as a cache (i.e. for storing values that can be re-calculated) to avoid memory exhaustion.
 * <p>
 * <strong>Note:</strong> Actual implementations must be thread-safe.
 *
 * @see Session#getData()
 * @since 4.0.0
 */
@Experimental
@ThreadSafe
@Provider
public interface SessionData {

    /**
     * Associates the specified session data with the given key.

        if (metadataFile.length() == 0) {
            if (!metadataFile.delete()) {
                // sleep for 10ms just in case this is windows holding a file lock
                try {
                    Thread.sleep(10);
                } catch (InterruptedException e) {
                    // ignore
                }
                metadataFile.delete(); // if this fails, forget about it, we'll try to overwrite it anyway so no need

        failureUrl.setErrorName(errorName);
        failureUrl.setErrorLog(getStackTrace(e));
        failureUrl.setLastAccessTime(ComponentUtil.getSystemHelper().getCurrentTimeAsLong());
        failureUrl.setThreadName(Thread.currentThread().getName());

        bhv.insertOrUpdate(failureUrl, op -> {
            op.setRefreshPolicy(Constants.TRUE);
        });
        return failureUrl;
    }

    /**

    Class<?> sepFrqC = sepLoader.loadClass(frqC.getName());
    assertThat(frqC).isNotSameInstanceAs(sepFrqC);
    // Check the assumptions above.

    // FRQ tries to load the Finalizer class (for the reference-collecting thread) in a few ways.
    // If the class is accessible to the system ClassLoader (ClassLoader.getSystemClassLoader())
    // then FRQ does not bother to load Finalizer.class through a separate ClassLoader. That happens