//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(timeout = TEST_TIMEOUT_MILLIS) public void testThreadRemovedFromWaitingListOnDeadlock() throws InterruptedException
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void TestThreadRemovedFromWaitingListOnDeadlock()
{
RagManager ragManager = Mockito.mock(typeof(RagManager));
LockResource resource = new LockResource(ResourceTypes.NODE, 1L);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final RWLock lock = createRWLock(ragManager, resource);
RWLock @lock = CreateRWLock(ragManager, resource);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final LockTransaction lockTransaction = new LockTransaction();
LockTransaction lockTransaction = new LockTransaction();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final LockTransaction anotherTransaction = new LockTransaction();
LockTransaction anotherTransaction = new LockTransaction();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.CountDownLatch exceptionLatch = new java.util.concurrent.CountDownLatch(1);
System.Threading.CountdownEvent exceptionLatch = new System.Threading.CountdownEvent(1);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.CountDownLatch completionLatch = new java.util.concurrent.CountDownLatch(1);
System.Threading.CountdownEvent completionLatch = new System.Threading.CountdownEvent(1);
Mockito.doNothing().doAnswer(invocation =>
{
exceptionLatch.Signal();
throw new DeadlockDetectedException("Deadlock");
}).when(ragManager).checkWaitOn(@lock, lockTransaction);
@lock.Mark();
@lock.Mark();
@lock.AcquireReadLock(LockTracer.NONE, lockTransaction);
@lock.AcquireReadLock(LockTracer.NONE, anotherTransaction);
// writer will be added to a waiting list
// then spurious wake up will be simulated
// and deadlock will be detected
ThreadStart writer = () =>
{
try
{
@lock.Mark();
@lock.AcquireWriteLock(LockTracer.NONE, lockTransaction);
}
catch (DeadlockDetectedException)
{
// ignored
}
completionLatch.Signal();
};
_executor.execute(writer);
WaitWaitingThreads(@lock, 1);
// sending notify for all threads till our writer will not cause deadlock exception
do
{
//noinspection SynchronizationOnLocalVariableOrMethodParameter
lock ( @lock )
{
Monitor.PulseAll(@lock);
}
} while (exceptionLatch.CurrentCount == 1);
// waiting for writer to finish
completionLatch.await();
assertEquals("In case of deadlock caused by spurious wake up " + "thread should be removed from waiting list", 0, @lock.WaitingThreadsCount);
}