CRAWLING_EXCEPTION,
    /** Indicates no URL is available in the queue. */
    NO_URL_IN_QUEUE,
    /** Indicates the start of a crawler thread. */
    START_THREAD,
    /** Indicates the finish of a crawler thread. */
    FINISHED_THREAD,
    /** Indicates no response processor is available. */
    NO_RESPONSE_PROCESSOR,
    /** Indicates no rule is available for processing. */
    NO_RULE,

if [[ "$TFCI_DOCKER_PULL_ENABLE" == 1 ]]; then
  # Simple retry logic for docker-pull errors. Sleeps if a pull fails.
  # Pulling an already-pulled container image will finish instantly, so
  # repeating the command costs nothing.
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 15
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 30
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 60

                    task.interrupt();
                    ThreadUtil.sleep(100L);
                }
                throw new ExtractException("PDFBox process cannot finish in " + timeout + " sec.");
            }
            if (!exceptionSet.isEmpty()) {
                throw exceptionSet.iterator().next();
            }
            writer.flush();

Worse, there is no guarantee that the write to <code>done</code> will ever
be observed by <code>main</code>, since there are no synchronization
events between the two threads.  The loop in <code>main</code> is not
guaranteed to finish.
</p>

<p>
There are subtler variants on this theme, such as this program.
</p>

<pre>
type T struct {
	msg string
}

var g *T

func setup() {
	t := new(T)

V15 value with 9 keys XXLOR VS10, VS10, V23 // Last key -> V23 for later vcipiherlast // Key length based on CR2. (LT=10, EQ=12, GT=14) BLT CR2, block16_last // Finish for key size 10 VCIPHER_1X2_KEYS(V15, VS10, VS11) // Encrypt V15 with 2 more keys XXLOR VS12, VS12, V23 // Last key -> V23 for later vcipherlast BEQ CR2, block16_last // Finish for key size 12 VCIPHER_1X2_KEYS(V15, VS12, VS13) // Encrypt V15 with last 2 keys XXLOR VS14, VS14, V23 // Last key -> V23 for vcipherlast with key size 14 block16_last:...

### Bug Fixes and Other Changes

* GPU