Method Details

• await

  void await()

  Causes the current thread to wait until the latch has counted down to zero, unless the thread is interrupted.

  If another thread destroys the latch, the awaiting thread will throw a DTypeException.

• await

  boolean await(long timeout, TimeUnit unit) throws InterruptedException

  Causes the current thread to wait until the latch has counted down to zero, unless the thread is interrupted, or the specified waiting time has elapsed.

  If another thread destroys the latch, the awaiting thread will throw a DTypeException.

  Parameters:

  timeout - the maximum time to wait

  unit - the time unit of the timeout argument

  Returns:

  true if the count reached zero and false if the waiting time elapsed before the count reached zero

  Throws:

  InterruptedException - if the current thread is interrupted while waiting

• countDown

  long countDown()

  Decrements the count of the latch, releasing all waiting threads if the count reaches zero.

  Returns:

  the remaining count of the latch

• getCount

  long getCount()

  Returns the current count.

  Returns:

  the current count

• destroy

  void destroy()

  Destroys the countdown latch. This will release any threads that may have been waiting on the latch.

  Specified by:

  destroy in interface DType

• getWaiters

  int getWaiters()

  Return the number of threads waiting on this countdown latch.

  Returns:

  the number of threads waiting

• toString

  String toString()

  Returns a string identifying this latch, as well as its state. Note that the backend object is not locked for this call and the results may not be accurate.

  Overrides:

  toString in class Object

  Returns:

  a string representation of the latch