public void UpgradeToWriteLock()
{
if (write)
{
throw new InvalidOperationException("Lock already upgraded");
}
// it is important that these never throw exceptions, they shouldn't ever
// because Interlocked should never throw
locker.WaitForWriteLock();
write = true;
}
public ReaderWriterLockAsyncLocker(ReaderWriterLockAsync locker, bool write)
{
this.locker = locker;
this.write = write;
// it is important that these never throw exceptions, they shouldn't ever
// because Interlocked should never throw
locker.WaitForReadLock();
if (write)
{
locker.WaitForWriteLock();
}
}