private void EndTask()
{
lock (_lockSync)
{
_currentTask = null;
_queuedTasks.Dequeue();
}
OutstandingTaskCountChanged.Raise(this);
}
public Task <TResult> QueueTask <TResult>(Task <Task <TResult> > taskGenerator)
{
Task <TResult> unwrapped = taskGenerator.Unwrap();
unwrapped.ContinueWith(_ =>
{
EndTask();
StartNextTaskIfQueued();
}, TaskContinuationOptions.ExecuteSynchronously);
lock (_lockSync)
{
_queuedTasks.Enqueue(taskGenerator);
if (_currentTask == null)
{
StartNextTaskIfQueued();
}
}
TaskCompletionSource <TResult> tcs = new TaskCompletionSource <TResult>();
tcs.TrySetFromTaskIncomplete(unwrapped);
OutstandingTaskCountChanged.Raise(this);
return(tcs.Task);
}
