/// <summary> /// Schedules an action to be executed after dueTime. /// </summary> /// <typeparam name="TState">The type of the state passed to the scheduled action.</typeparam> /// <param name="state">State passed to the action to be executed.</param> /// <param name="action">Action to be executed.</param> /// <param name="dueTime">Relative time after which to execute the action.</param> /// <returns>The disposable object used to cancel the scheduled action (best effort).</returns> /// <exception cref="ArgumentNullException"><paramref name="action"/> is null.</exception> public override IDisposable Schedule <TState>(TState state, TimeSpan dueTime, Func <IScheduler, TState, IDisposable> action) { if (action == null) { throw new ArgumentNullException("action"); } var dt = Time + Scheduler.Normalize(dueTime); var si = new ScheduledItem <TimeSpan, TState>(this, state, action, dt); var queue = GetQueue(); if (queue == null) { queue = new SchedulerQueue <TimeSpan>(4); queue.Enqueue(si); CurrentThreadScheduler.SetQueue(queue); try { Trampoline.Run(queue); } finally { CurrentThreadScheduler.SetQueue(null); } } else { queue.Enqueue(si); } return(Disposable.Create(si.Cancel)); }
private static void SetQueue(SchedulerQueue <TimeSpan> newQueue) { lock (s_queues) { if (newQueue == null) { s_queues.Remove(Thread.CurrentThread.ManagedThreadId); } else { s_queues[Thread.CurrentThread.ManagedThreadId] = newQueue; } } }
internal EventLoopScheduler(Func <ThreadStart, Thread> threadFactory) { #endif _threadFactory = threadFactory ?? throw new ArgumentNullException(nameof(threadFactory)); _stopwatch = ConcurrencyAbstractionLayer.Current.StartStopwatch(); _gate = new object(); _evt = new SemaphoreSlim(0); _queue = new SchedulerQueue <TimeSpan>(); _readyList = new Queue <ScheduledItem <TimeSpan> >(); ExitIfEmpty = false; }
internal EventLoopScheduler(Func <ThreadStart, Thread> threadFactory) { #endif _threadFactory = threadFactory; _stopwatch = ConcurrencyAbstractionLayer.Current.StartStopwatch(); _gate = new object(); _evt = new SemaphoreSlim(0); _queue = new SchedulerQueue <TimeSpan>(); _readyList = new Queue <ScheduledItem <TimeSpan> >(); _nextTimer = new SerialDisposable(); ExitIfEmpty = false; }
public static void Run(SchedulerQueue <TimeSpan> queue) { while (queue.Count > 0) { var item = queue.Dequeue(); if (!item.IsCanceled) { var wait = item.DueTime - CurrentThreadScheduler.Time; if (wait.Ticks > 0) { ConcurrencyAbstractionLayer.Current.Sleep(wait); } if (!item.IsCanceled) { item.Invoke(); } } } }
public static void Run(SchedulerQueue <TimeSpan> queue) { while (queue.Count > 0) { var item = queue.Dequeue(); if (!item.IsCanceled) { var wait = item.DueTime - CurrentThreadScheduler.Time; if (wait.Ticks > 0) { ConcurrencyAbstractionLayer.Current.Sleep(wait); } // There we can see the Observer.OnNext() is called!!! if (!item.IsCanceled) { item.Invoke(); } } } }
private static void SetQueue(SchedulerQueue <TimeSpan> newQueue) { s_threadLocalQueue = newQueue; }
/// <summary> /// Schedules an action to be executed after dueTime. /// </summary> /// <typeparam name="TState">The type of the state passed to the scheduled action.</typeparam> /// <param name="state">State passed to the action to be executed.</param> /// <param name="action">Action to be executed.</param> /// <param name="dueTime">Relative time after which to execute the action.</param> /// <returns>The disposable object used to cancel the scheduled action (best effort).</returns> /// <exception cref="ArgumentNullException"><paramref name="action"/> is <c>null</c>.</exception> public override IDisposable Schedule <TState>(TState state, TimeSpan dueTime, Func <IScheduler, TState, IDisposable> action) { if (action == null) { throw new ArgumentNullException(nameof(action)); } var queue = default(SchedulerQueue <TimeSpan>); // There is no timed task and no task is currently running if (!running) { running = true; if (dueTime > TimeSpan.Zero) { ConcurrencyAbstractionLayer.Current.Sleep(dueTime); } // execute directly without queueing IDisposable d; try { d = action(this, state); } catch { SetQueue(null); running = false; throw; } // did recursive tasks arrive? queue = GetQueue(); // yes, run those in the queue as well if (queue != null) { try { Trampoline.Run(queue); } finally { SetQueue(null); running = false; } } else { running = false; } return(d); } queue = GetQueue(); // if there is a task running or there is a queue if (queue == null) { queue = new SchedulerQueue <TimeSpan>(4); SetQueue(queue); } var dt = Time + Scheduler.Normalize(dueTime); // queue up more work var si = new ScheduledItem <TimeSpan, TState>(this, state, action, dt); queue.Enqueue(si); return(si); }