public ReaderWriterCount(bool fIsReentrant)
{
if (fIsReentrant)
{
this.rc = new RecursiveCounts();
}
}
public void ExitUpgradeableReadLock()
{
int id = Thread.CurrentThread.ManagedThreadId;
if (!this.fIsReentrant)
{
if (id != this.upgradeLockOwnerId)
{
throw new SynchronizationLockException("SynchronizationLockException_MisMatchedUpgrade");
}
this.EnterMyLock();
}
else
{
this.EnterMyLock();
ReaderWriterCount threadRWCount = this.GetThreadRWCount(id, true);
if (threadRWCount == null)
{
this.ExitMyLock();
throw new SynchronizationLockException("SynchronizationLockException_MisMatchedUpgrade");
}
RecursiveCounts rc = threadRWCount.rc;
if (rc.upgradecount < 1)
{
this.ExitMyLock();
throw new SynchronizationLockException("SynchronizationLockException_MisMatchedUpgrade");
}
rc.upgradecount--;
if (rc.upgradecount > 0)
{
this.ExitMyLock();
return;
}
this.fUpgradeThreadHoldingRead = false;
}
this.owners--;
this.upgradeLockOwnerId = -1;
this.ExitAndWakeUpAppropriateWaiters();
}
public void ExitWriteLock()
{
int id = Thread.CurrentThread.ManagedThreadId;
if (!this.fIsReentrant)
{
if (id != this.writeLockOwnerId)
{
throw new SynchronizationLockException("SynchronizationLockException_MisMatchedWrite");
}
this.EnterMyLock();
}
else
{
this.EnterMyLock();
ReaderWriterCount threadRWCount = this.GetThreadRWCount(id, false);
if (threadRWCount == null)
{
this.ExitMyLock();
throw new SynchronizationLockException("SynchronizationLockException_MisMatchedWrite");
}
RecursiveCounts rc = threadRWCount.rc;
if (rc.writercount < 1)
{
this.ExitMyLock();
throw new SynchronizationLockException("SynchronizationLockException_MisMatchedWrite");
}
rc.writercount--;
if (rc.writercount > 0)
{
this.ExitMyLock();
return;
}
}
this.ClearWriterAcquired();
this.writeLockOwnerId = -1;
this.ExitAndWakeUpAppropriateWaiters();
}
