//   - What should be done with requests that exceed the limit?
message LimitedPriorityLevelConfiguration {
  // `assuredConcurrencyShares` (ACS) configures the execution
  // limit, which is a limit on the number of requests of this
  // priority level that may be exeucting at a given time.  ACS must
  // be a positive number. The server's concurrency limit (SCL) is
  // divided among the concurrency-controlled priority levels in

    /*
     * Wait not just until the Future's value is set (as in future.get()) but
     * also until ListeningScheduledExecutorService's wrapper task is done
     * executing listeners, as detected by yielding control to afterExecute.
     */
    completed.await();
    assertTrue(future.isDone());
    assertThat(future.get()).isEqualTo(42);
    assertListenerRunImmediately(future);

</p>

<p>
A Go <i>program execution</i> is modeled as a set of goroutine executions,
together with a mapping <i>W</i> that specifies the write-like operation that each read-like operation reads from.
(Multiple executions of the same program can have different program executions.)
</p>

<p>
<b>Requirement 2</b>:
For a given program execution, the mapping <i>W</i>, when limited to synchronizing operations,

    ```
    curl \
      --http2-prior-knowledge \
      --proxy localhost:8888 \
      --proxytunnel \
      http://squareup.com/robots.txt
    ```

 *  Fix: Support executing OkHttp on kotlin-stdlib versions as old as 1.4. The library still builds
    on up-to-date Kotlin releases (1.6.21) but no longer needs that version as a runtime dependency.

to be initialized but the results are assumed uninitialized.
If the results will hold live pointers during a call instruction,
the function should start by zeroing the results and then
executing the pseudo-instruction <code>GO_RESULTS_INITIALIZED</code>.
This instruction records that the results are now initialized
and should be scanned during stack movement and garbage collection.

</p>

<p>
The function value and parameters are
<a href="#Calls">evaluated as usual</a>
in the calling goroutine, but
unlike with a regular call, program execution does not wait
for the invoked function to complete.
Instead, the function begins executing independently
in a new goroutine.
When the function terminates, its goroutine also terminates.
If the function has any return values, they are discarded when the

on the Program.

  To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy.  Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.

    final AbstractFuture<String> f =
        new AbstractFuture<String>() {
          @Override
          protected void afterDone() {
            // this simply delays executing listeners
            try {
              Thread.sleep(SECONDS.toMillis(10));
            } catch (InterruptedException ignored) {
              Thread.currentThread().interrupt(); // preserve status
            }

</p>

<p>
The function value and parameters are
<a href="#Calls">evaluated as usual</a>
in the calling goroutine, but
unlike with a regular call, program execution does not wait
for the invoked function to complete.
Instead, the function begins executing independently
in a new goroutine.
When the function terminates, its goroutine also terminates.
If the function has any return values, they are discarded when the

// that were missed since there were no available workers.
func (e *expiryStats) MissedTierJournalTasks() int64 {
	return e.missedTierJournalTasks.Load()
}

// NumWorkers returns the number of active workers executing one of ILM expiry
// tasks or free version collection tasks.
func (e *expiryStats) NumWorkers() int32 {
	return e.workers.Load()
}

type expiryOp interface {
	OpHash() uint64
}