Composite.GlobalInitializerFacade.AcquireWriterLock C# (CSharp) Метод

        private static void AcquireWriterLock()
        {
            int threadId = Thread.CurrentThread.ManagedThreadId;

            if (_readerWriterLock.IsReaderLockHeld)
            {
                LockCookie lockCookie = _readerWriterLock.UpgradeToWriterLock(GlobalSettingsFacade.DefaultWriterLockWaitTimeout);

                lock(_threadLocking)
                {
                    _threadLocking.LockCookiesPerThreadId.Add(threadId, lockCookie);
                }
            }
            else
            {
                _readerWriterLock.AcquireWriterLock(GlobalSettingsFacade.DefaultWriterLockWaitTimeout);
            }

            lock (_threadLocking)
            {
                if (_threadLocking.WriterLocksPerThreadId.ContainsKey(threadId))
                {
                    _threadLocking.WriterLocksPerThreadId[threadId] = _threadLocking.WriterLocksPerThreadId[threadId] + 1;
                }
                else
                {
                    _threadLocking.WriterLocksPerThreadId.Add(threadId, 1);
                }
            }
        }