/// <summary>
/// Enqueues a unit of work
/// </summary>
/// <param name="work">The work to be performed</param>
/// <param name="worker">The handler that will be invoked to perform the work</param>
/// <param name="observers">A listener for which appropriate actions will be invoked during
/// execution</param>
/// <returns></returns>
public WorkPartition Submit(IPartitionedWork work, Action <IPartitionedWork> worker, IReadOnlyList <IWorkAgentObserver> observers)
{
var clrTaskId = WorkPartition.AssignIdentity();
Action <IPartitionedWork> adapter = w =>
{
iter(observers, observer => observer.RaiseWorkDispatched(work));
try
{
worker(work);
}
finally
{
HandleTaskCompletion(clrTaskId).OnNone(()
=> Notify(AppMessage.Warn("There was no task to complete")));
}
iter(observers, observer => observer.RaiseWorkCompleted(work));
};
var workTask = EnqueueWork(WorkPartition.Create(clrTaskId, work, adapter));
iter(observers, observer => observer.RaiseWorkSubmitted(work));
return(workTask);
}
protected void StartTask(WorkPartition task, bool wait)
{
task.Start();
if (!ExecutingTasks.TryAdd(task.ClrTaskId, task))
{
Notify(ExecutionIndexUpdateFailed(task.ClrTaskId));
}
if (wait)
{
task.Wait();
}
}
protected WorkPartition EnqueueWork(WorkPartition workTask)
{
GetPartitionQueue(workTask.Partition).Enqueue(workTask);
return(workTask);
}