//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldUpgradeToUpdateLock()
public virtual void ShouldUpgradeToUpdateLock()
{
// Given
ForsetiClient clientA = mock(typeof(ForsetiClient));
ForsetiClient clientB = mock(typeof(ForsetiClient));
SharedLock @lock = new SharedLock(clientA);
@lock.Acquire(clientB);
// When
assertTrue(@lock.TryAcquireUpdateLock(clientA));
// Then
assertThat(@lock.NumberOfHolders(), equalTo(2));
assertThat(@lock.UpdateLock, equalTo(true));
}
/// <summary>
/// Attempt to upgrade a share lock to an exclusive lock, grabbing the share lock if we don't hold it.
///
/// </summary>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private boolean tryUpgradeSharedToExclusive(org.neo4j.storageengine.api.lock.LockTracer tracer, org.neo4j.storageengine.api.lock.LockWaitEvent waitEvent, org.neo4j.storageengine.api.lock.ResourceType resourceType, java.util.concurrent.ConcurrentMap<long,ForsetiLockManager.Lock> lockMap, long resourceId, SharedLock sharedLock, long waitStartMillis) throws org.neo4j.storageengine.api.lock.AcquireLockTimeoutException
private bool TryUpgradeSharedToExclusive(LockTracer tracer, LockWaitEvent waitEvent, ResourceType resourceType, ConcurrentMap <long, ForsetiLockManager.Lock> lockMap, long resourceId, SharedLock sharedLock, long waitStartMillis)
{
int tries = 0;
bool holdsSharedLock = _sharedLockCounts[resourceType.TypeId()].containsKey(resourceId);
if (!holdsSharedLock)
{
// We don't hold the shared lock, we need to grab it to upgrade it to an exclusive one
if (!sharedLock.Acquire(this))
{
return(false);
}
try
{
if (TryUpgradeToExclusiveWithShareLockHeld(tracer, waitEvent, resourceType, resourceId, sharedLock, tries, waitStartMillis))
{
return(true);
}
else
{
ReleaseGlobalLock(lockMap, resourceId);
return(false);
}
}
catch (Exception e)
{
ReleaseGlobalLock(lockMap, resourceId);
throw e;
}
}
else
{
// We do hold the shared lock, so no reason to deal with the complexity in the case above.
return(TryUpgradeToExclusiveWithShareLockHeld(tracer, waitEvent, resourceType, resourceId, sharedLock, tries, waitStartMillis));
}
}
