Пример #1
0
        public void Dispose()
        {
            bool dispose = false;

            lock (ThisLock)
            {
                if (queueState != QueueState.Closed)
                {
                    queueState = QueueState.Closed;
                    dispose    = true;
                }
            }

            if (dispose)
            {
                while (readerQueue.Count > 0)
                {
                    IQueueReader reader = readerQueue.Dequeue();
                    reader.Set(default(Item));
                }

                while (itemQueue.HasAnyItem)
                {
                    Item item = itemQueue.DequeueAnyItem();
                    DisposeItem(item);
                    InvokeDequeuedCallback(item.DequeuedCallback);
                }
            }
        }
Пример #2
0
        public void Dispatch()
        {
            IQueueReader reader = null;
            Item         item   = new Item();

            IQueueReader[] outstandingReaders = null;
            IQueueWaiter[] waiters            = null;
            bool           itemAvailable      = true;

            lock (ThisLock)
            {
                itemAvailable = !((_queueState == QueueState.Closed) || (_queueState == QueueState.Shutdown));
                this.GetWaiters(out waiters);

                if (_queueState != QueueState.Closed)
                {
                    _itemQueue.MakePendingItemAvailable();

                    if (_readerQueue.Count > 0)
                    {
                        item   = _itemQueue.DequeueAvailableItem();
                        reader = _readerQueue.Dequeue();

                        if (_queueState == QueueState.Shutdown && _readerQueue.Count > 0 && _itemQueue.ItemCount == 0)
                        {
                            outstandingReaders = new IQueueReader[_readerQueue.Count];
                            _readerQueue.CopyTo(outstandingReaders, 0);
                            _readerQueue.Clear();

                            itemAvailable = false;
                        }
                    }
                }
            }

            if (outstandingReaders != null)
            {
                if (s_completeOutstandingReadersCallback == null)
                {
                    s_completeOutstandingReadersCallback = new Action <object>(CompleteOutstandingReadersCallback);
                }

                ActionItem.Schedule(s_completeOutstandingReadersCallback, outstandingReaders);
            }

            if (waiters != null)
            {
                CompleteWaitersLater(itemAvailable, waiters);
            }

            if (reader != null)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                reader.Set(item);
            }
        }
Пример #3
0
        public void Dispatch()
        {
            IQueueReader reader = null;
            Item         item   = new Item();

            IQueueReader[] outstandingReaders = null;
            IQueueWaiter[] waiters            = null;
            bool           itemAvailable      = true;

            lock (ThisLock)
            {
                itemAvailable = !((queueState == QueueState.Closed) || (queueState == QueueState.Shutdown));
                this.GetWaiters(out waiters);

                if (queueState != QueueState.Closed)
                {
                    itemQueue.MakePendingItemAvailable();

                    if (readerQueue.Count > 0)
                    {
                        item   = itemQueue.DequeueAvailableItem();
                        reader = readerQueue.Dequeue();

                        if (queueState == QueueState.Shutdown && readerQueue.Count > 0 && itemQueue.ItemCount == 0)
                        {
                            outstandingReaders = new IQueueReader[readerQueue.Count];
                            readerQueue.CopyTo(outstandingReaders, 0);
                            readerQueue.Clear();

                            itemAvailable = false;
                        }
                    }
                }
            }

            if (outstandingReaders != null)
            {
                if (completeOutstandingReadersCallback == null)
                {
                    completeOutstandingReadersCallback = new WaitCallback(CompleteOutstandingReadersCallback);
                }

                ThreadPool.QueueUserWorkItem(completeOutstandingReadersCallback, outstandingReaders);
            }

            if (waiters != null)
            {
                CompleteWaitersLater(itemAvailable, waiters);
            }

            if (reader != null)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                reader.Set(item);
            }
        }
Пример #4
0
        public void Dispatch()
        {
            IQueueReader <T> reader = null;
            ExItem <T>       item   = new ExItem <T>();

            IQueueReader <T>[] outstandingReaders = null;
            IQueueWaiter[]     waiters            = null;
            bool itemAvailable = true;

            lock (LockObject)
            {
                itemAvailable = (_QueueState != QueueState.Closed && _QueueState != QueueState.Shutdown);
                this.getWaiters(out waiters);
                if (_QueueState != QueueState.Closed)
                {
                    _ItemQueue.MakePendingItemAvailable();
                    if (_QueueReader.Count > 0)
                    {
                        item   = _ItemQueue.DequeueAvailableItem();
                        reader = _QueueReader.Dequeue();
                        if (_QueueState == QueueState.Shutdown &&
                            _QueueReader.Count > 0 &&
                            _ItemQueue.ItemCount == 0)
                        {
                            outstandingReaders = new IQueueReader <T> [_QueueReader.Count];
                            _QueueReader.CopyTo(outstandingReaders, 0);
                            _QueueReader.Clear();
                            itemAvailable = false;
                        }
                    }
                }
            }

            if (outstandingReaders != null)
            {
                if (_CompleteOutstandingReadersCallback == null)
                {
                    _CompleteOutstandingReadersCallback = completeOutstandingReadersCallback;
                }
                ThreadPool.QueueUserWorkItem(_CompleteOutstandingReadersCallback, outstandingReaders);
            }

            if (waiters != null)
            {
                completeWaitersLater(itemAvailable, waiters);
            }

            if (reader != null)
            {
                invokeDequeueCallback(item.Callback);
                reader.Set(item);
            }
        }
Пример #5
0
        public void Dispatch()
        {
            IQueueReader <T> reader = null;
            var item = new Item <T>();

            IQueueReader <T>[] outstandingReaders = null;
            IQueueWaiter[]     waiters            = null;
            var itemAvailable = true;

            lock (ThisLock)
            {
                itemAvailable = !((_queueState == QueueState.Closed) || (_queueState == QueueState.Shutdown));
                GetWaiters(out waiters);

                if (_queueState != QueueState.Closed)
                {
                    _itemQueue.MakePendingItemAvailable();

                    if (_readerQueue.Count > 0)
                    {
                        item   = _itemQueue.DequeueAvailableItem();
                        reader = _readerQueue.Dequeue();

                        if (_queueState == QueueState.Shutdown && _readerQueue.Count > 0 && _itemQueue.ItemCount == 0)
                        {
                            outstandingReaders = new IQueueReader <T> [_readerQueue.Count];
                            _readerQueue.CopyTo(outstandingReaders, 0);
                            _readerQueue.Clear();

                            itemAvailable = false;
                        }
                    }
                }
            }

            if (outstandingReaders != null)
            {
                ThreadPool.QueueUserWorkItem(CompleteOutstandingReadersCallback, outstandingReaders);
            }

            if (waiters != null)
            {
                CompleteWaitersLater(itemAvailable, waiters);
            }

            if (reader != null)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                reader.Set(item);
            }
        }
Пример #6
0
        public void Dispatch()
        {
            IQueueReader <T> reader = null;
            Item <T>         item   = new Item <T>();

            IQueueReader <T>[] array   = null;
            IQueueWaiter <T>[] waiters = null;
            bool itemAvailable         = true;

            lock (this.ThisLock)
            {
                itemAvailable = (this.queueState != QueueState <T> .Closed) && (this.queueState != QueueState <T> .Shutdown);
                this.GetWaiters(out waiters);
                if (this.queueState != QueueState <T> .Closed)
                {
                    this.itemQueue.MakePendingItemAvailable();
                    if (this.readerQueue.Count > 0)
                    {
                        item   = this.itemQueue.DequeueAvailableItem();
                        reader = this.readerQueue.Dequeue();
                        if (((this.queueState == QueueState <T> .Shutdown) && (this.readerQueue.Count > 0)) && (this.itemQueue.ItemCount == 0))
                        {
                            array = new IQueueReader <T> [this.readerQueue.Count];
                            this.readerQueue.CopyTo(array, 0);
                            this.readerQueue.Clear();
                            itemAvailable = false;
                        }
                    }
                }
            }
            if (array != null)
            {
                if (InputQueue <T> .completeOutstandingReadersCallback == null)
                {
                    InputQueue <T> .completeOutstandingReadersCallback = new Action <object>(InputQueue <T> .CompleteOutstandingReadersCallback);
                }
                ActionItem.Schedule(InputQueue <T> .completeOutstandingReadersCallback, array);
            }
            if (waiters != null)
            {
                InputQueue <T> .CompleteWaitersLater(itemAvailable, waiters);
            }
            if (reader != null)
            {
                InputQueue <T> .InvokeDequeuedCallback(item.DequeuedCallback);

                reader.Set(item);
            }
        }
Пример #7
0
        void EnqueueAndDispatch(Item item, bool canDispatchOnThisThread)
        {
            bool         disposeItem   = false;
            IQueueReader reader        = null;
            bool         dispatchLater = false;

            IQueueWaiter[] waiters       = null;
            bool           itemAvailable = true;

            lock (ThisLock)
            {
                itemAvailable = !((queueState == QueueState.Closed) || (queueState == QueueState.Shutdown));
                this.GetWaiters(out waiters);

                if (queueState == QueueState.Open)
                {
                    if (canDispatchOnThisThread)
                    {
                        if (readerQueue.Count == 0)
                        {
                            itemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            reader = readerQueue.Dequeue();
                        }
                    }
                    else
                    {
                        if (readerQueue.Count == 0)
                        {
                            itemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            itemQueue.EnqueuePendingItem(item);
                            dispatchLater = true;
                        }
                    }
                }
                else // queueState == QueueState.Closed || queueState == QueueState.Shutdown
                {
                    disposeItem = true;
                }
            }

            if (waiters != null)
            {
                if (canDispatchOnThisThread)
                {
                    CompleteWaiters(itemAvailable, waiters);
                }
                else
                {
                    CompleteWaitersLater(itemAvailable, waiters);
                }
            }

            if (reader != null)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                reader.Set(item);
            }

            if (dispatchLater)
            {
                if (onDispatchCallback == null)
                {
                    onDispatchCallback = new WaitCallback(OnDispatchCallback);
                }

                ThreadPool.QueueUserWorkItem(onDispatchCallback, this);
            }
            else if (disposeItem)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                DisposeItem(item);
            }
        }
Пример #8
0
        private void EnqueueAndDispatch(Item item, bool canDispatchOnThisThread)
        {
            bool         disposeItem   = false;
            IQueueReader reader        = null;
            bool         dispatchLater = false;

            IQueueWaiter[] waiters       = null;
            bool           itemAvailable = true;

            lock (ThisLock)
            {
                itemAvailable = !((_queueState == QueueState.Closed) || (_queueState == QueueState.Shutdown));
                this.GetWaiters(out waiters);

                if (_queueState == QueueState.Open)
                {
                    if (canDispatchOnThisThread)
                    {
                        if (_readerQueue.Count == 0)
                        {
                            _itemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            reader = _readerQueue.Dequeue();
                        }
                    }
                    else
                    {
                        if (_readerQueue.Count == 0)
                        {
                            _itemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            _itemQueue.EnqueuePendingItem(item);
                            dispatchLater = true;
                        }
                    }
                }
                else // queueState == QueueState.Closed || queueState == QueueState.Shutdown
                {
                    disposeItem = true;
                }
            }

            if (waiters != null)
            {
                if (canDispatchOnThisThread)
                {
                    CompleteWaiters(itemAvailable, waiters);
                }
                else
                {
                    CompleteWaitersLater(itemAvailable, waiters);
                }
            }

            if (reader != null)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                reader.Set(item);
            }

            if (dispatchLater)
            {
                if (s_onDispatchCallback == null)
                {
                    s_onDispatchCallback = new Action <object>(OnDispatchCallback);
                }

                ActionItem.Schedule(s_onDispatchCallback, this);
            }
            else if (disposeItem)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                DisposeItem(item);
            }
        }
Пример #9
0
        private void enqueueAndDispatch(ExItem <T> item, bool canDispatchOnThisThread)
        {
            bool             disposeItem   = false;
            bool             dispatchLater = false;
            bool             itemAvailable = true;
            IQueueReader <T> reader        = null;

            IQueueWaiter[] waiters = null;
            lock (LockObject)
            {
                itemAvailable = (_QueueState != QueueState.Closed && _QueueState != QueueState.Shutdown);
                this.getWaiters(out waiters);
                if (_QueueState == QueueState.Open)
                {
                    if (canDispatchOnThisThread)
                    {
                        if (_QueueReader.Count == 0)
                        {
                            _ItemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            reader = _QueueReader.Dequeue();
                        }
                    }
                    else
                    {
                        if (_QueueReader.Count == 0)
                        {
                            _ItemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            _ItemQueue.EnqueuePendingItem(item);
                            dispatchLater = true;
                        }
                    }
                }
                else
                {
                    disposeItem = true;
                }
            }

            if (waiters != null)
            {
                if (canDispatchOnThisThread)
                {
                    completeWaiters(itemAvailable, waiters);
                }
                else
                {
                    completeWaitersLater(itemAvailable, waiters);
                }
            }

            if (reader != null)
            {
                invokeDequeueCallback(item.Callback);
                reader.Set(item);
            }

            if (dispatchLater)
            {
                if (_OnDispatchCallback == null)
                {
                    _OnDispatchCallback = onDispatchCallback;
                }
                ThreadPool.QueueUserWorkItem(_OnDispatchCallback, this);
            }
            else if (disposeItem)
            {
                invokeDequeueCallback(item.Callback);
                item.Dispose();
            }
        }
Пример #10
0
        private void EnqueueAndDispatch(Item <T> item, bool canDispatchOnThisThread)
        {
            bool             flag   = false;
            IQueueReader <T> reader = null;
            bool             flag2  = false;

            IQueueWaiter <T>[] waiters = null;
            bool itemAvailable         = true;

            lock (this.ThisLock)
            {
                itemAvailable = (this.queueState != QueueState <T> .Closed) && (this.queueState != QueueState <T> .Shutdown);
                this.GetWaiters(out waiters);
                if (this.queueState == QueueState <T> .Open)
                {
                    if (canDispatchOnThisThread)
                    {
                        if (this.readerQueue.Count == 0)
                        {
                            this.itemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            reader = this.readerQueue.Dequeue();
                        }
                    }
                    else if (this.readerQueue.Count == 0)
                    {
                        this.itemQueue.EnqueueAvailableItem(item);
                    }
                    else
                    {
                        this.itemQueue.EnqueuePendingItem(item);
                        flag2 = true;
                    }
                }
                else
                {
                    flag = true;
                }
            }
            if (waiters != null)
            {
                if (canDispatchOnThisThread)
                {
                    InputQueue <T> .CompleteWaiters(itemAvailable, waiters);
                }
                else
                {
                    InputQueue <T> .CompleteWaitersLater(itemAvailable, waiters);
                }
            }
            if (reader != null)
            {
                InputQueue <T> .InvokeDequeuedCallback(item.DequeuedCallback);

                reader.Set(item);
            }
            if (flag2)
            {
                if (InputQueue <T> .onDispatchCallback == null)
                {
                    InputQueue <T> .onDispatchCallback = new Action <object>(InputQueue <T> .OnDispatchCallback);
                }
                ActionItem.Schedule(InputQueue <T> .onDispatchCallback, this);
            }
            else if (flag)
            {
                InputQueue <T> .InvokeDequeuedCallback(item.DequeuedCallback);

                this.DisposeItem(item);
            }
        }
Пример #11
0
        void EnqueueAndDispatch(Item <T> item, bool canDispatchOnThisThread)
        {
            var          disposeItem   = false;
            IQueueReader reader        = null;
            var          dispatchLater = false;

            IQueueWaiter[] waiters       = null;
            var            itemAvailable = true;

            try
            {
                Monitor.Enter(this.ThisLock);

                itemAvailable = !((this.queueState == QueueState.Closed) || (this.queueState == QueueState.Shutdown));
                this.GetWaiters(out waiters);

                if (this.queueState == QueueState.Open)
                {
                    if (canDispatchOnThisThread)
                    {
                        if (this.readerQueue.Count == 0)
                        {
                            try
                            {
                                Monitor.Exit(this.ThisLock);
                                this.itemQueue.AcquireThrottle();
                            }
                            finally
                            {
                                Monitor.Enter(this.ThisLock);
                            }
                            this.itemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            reader = this.readerQueue.Dequeue();
                        }
                    }
                    else
                    {
                        if (this.readerQueue.Count == 0)
                        {
                            try
                            {
                                Monitor.Exit(this.ThisLock);
                                this.itemQueue.AcquireThrottle();
                            }
                            finally
                            {
                                Monitor.Enter(this.ThisLock);
                            }
                            this.itemQueue.EnqueueAvailableItem(item);
                        }
                        else
                        {
                            try
                            {
                                Monitor.Exit(this.ThisLock);
                                this.itemQueue.AcquireThrottle();
                            }
                            finally
                            {
                                Monitor.Enter(this.ThisLock);
                            }
                            this.itemQueue.EnqueuePendingItem(item);
                            dispatchLater = true;
                        }
                    }
                }
                else // queueState == QueueState.Closed || queueState == QueueState.Shutdown
                {
                    disposeItem = true;
                }
            }
            finally
            {
                Monitor.Exit(this.ThisLock);
            }

            if (waiters != null)
            {
                if (canDispatchOnThisThread)
                {
                    CompleteWaiters(itemAvailable, waiters);
                }
                else
                {
                    CompleteWaitersLater(itemAvailable, waiters);
                }
            }

            if (reader != null)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                reader.Set(item);
            }

            if (dispatchLater)
            {
                if (onDispatchCallback == null)
                {
                    onDispatchCallback = new WaitCallback(OnDispatchCallback);
                }

                ThreadPool.QueueUserWorkItem(onDispatchCallback, this);
            }
            else if (disposeItem)
            {
                InvokeDequeuedCallback(item.DequeuedCallback);
                item.Dispose();
            }
        }