// by the os/signal package.
//
//go:linkname signalWaitUntilIdle os/signal.signalWaitUntilIdle
func signalWaitUntilIdle() {
	for {
		lock(&sig.lock)
		sleeping := sig.sleeping
		unlock(&sig.lock)
		if sleeping {
			return
		}
		Gosched()
	}
}

// Must only be called from a single goroutine at a time.
//
//go:linkname signal_enable os/signal.signal_enable

//		If any procs are sleeping on addr, wake up at most cnt.

const (
	mutex_unlocked = 0
	mutex_locked   = 1
	mutex_sleeping = 2

	active_spin     = 4
	active_spin_cnt = 30
	passive_spin    = 1
)

// Possible lock states are mutex_unlocked, mutex_locked and mutex_sleeping.
// mutex_sleeping means that there is presumably at least one sleeping thread.

            logFileProbe = new DaemonLogFileStateProbe(daemonLog, context)
        } else {
            logFileProbe = new DaemonLogFileStateProbe(daemonLog, context, "Daemon is busy, sleeping until state changes", "Daemon is idle, sleeping until state change")
        }
    }

    protected void waitForState(State state) {
        def timer = Time.startCountdownTimer(STATE_CHANGE_TIMEOUT)

        } catch (InterruptedException e) {
          // ok. just stop sleeping.
        }
        if (shouldStop) {
          break;
        }
        interruptee.interrupt();
      }
    }

    void stopInterrupting() {
      shouldStop = true;
    }
  }

  /** Interrupts the current thread after sleeping for the specified delay. */

        } catch (InterruptedException e) {
          // ok. just stop sleeping.
        }
        if (shouldStop) {
          break;
        }
        interruptee.interrupt();
      }
    }

    void stopInterrupting() {
      shouldStop = true;
    }
  }

  /** Interrupts the current thread after sleeping for the specified delay. */

preemptible=$(curl "http://metadata.google.internal/computeMetadata/v1/instance/scheduling/preemptible" -H "Metadata-Flavor: Google")
if [ "${preemptible}" == "TRUE" ]; then
    echo "Shutting down! Sleeping for a minute to let the node gracefully terminate"
    # https://cloud.google.com/compute/docs/instances/stopping-or-deleting-an-instance#delete_timeout
    sleep 30

            while (true) {
                try {
                    switch (state) {
                        case Idle:
                        case Busy:
                            LOGGER.debug("daemon is running. Sleeping until state changes.");
                            condition.await();
                            break;
                        case Canceled:
                            LOGGER.debug("cancel requested.");

add_alias() {
	for i in $(seq 1 4); do
		echo "... attempting to add alias $i"
		until (mc alias set minio http://127.0.0.1:9000 minioadmin minioadmin); do
			echo "...waiting... for 5secs" && sleep 5
		done
	done

	echo "Sleeping for nginx"
	sleep 20
}

__init__() {
	sudo apt install curl -y
	export GOPATH=/tmp/gopath
	export PATH=${PATH}:${GOPATH}/bin

	go install github.com/minio/mc@latest

import org.junit.jupiter.api.Test

/**
 * Integration test to confirm that [TaskRunner] works with a real backend. Business logic is all
 * exercised by [TaskRunnerTest].
 *
 * This test is doing real sleeping with tolerances of 250 ms. Hopefully that's enough for even the
 * busiest of CI servers.
 */
@Tag("Slowish")
class TaskRunnerRealBackendTest {
  private val log = LinkedBlockingDeque<String>()

//		If ns >= 0, try to acquire m's semaphore for at most ns nanoseconds.
//		Return 0 if the semaphore was acquired, -1 if interrupted or timed out.
//
//	func semawakeup(mp *m)
//		Wake up mp, which is or will soon be sleeping on its semaphore.
const (
	locked uintptr = 1

	active_spin     = 4
	active_spin_cnt = 30
	passive_spin    = 1
)

func mutexContended(l *mutex) bool {
	return atomic.Loaduintptr(&l.key) > locked
}