Task <T> IAsyncWaitQueue <T> .Enqueue()
{
var tcs = TaskCompletionSourceExtensions.CreateAsyncTaskSource <T>();
_queue.AddToBack(tcs);
return(tcs.Task);
}
/// <summary>
/// Initializes a new instance of the <see cref="AsyncManualResetEventSlim"/> class with a Boolean value indicating whether to set the initial state to signaled.
/// </summary>
/// <param name="initialState">true to set the initial state signaled; false to set the initial state to nonSignaled.</param>
public AsyncManualResetEventSlim(bool initialState)
{
_tcs = TaskCompletionSourceExtensions.CreateAsyncTaskSource <bool>();
if (initialState)
{
_tcs.SetResult(true);
}
}
/// <summary>
/// Creates an async-compatible manual-reset event.
/// </summary>
/// <param name="set">Whether the manual-reset event is initially set or unset.</param>
public AsyncManualResetEvent(bool set)
{
_mutex = new object();
_tcs = TaskCompletionSourceExtensions.CreateAsyncTaskSource <object>();
if (set)
{
_tcs.TrySetResult(null);
}
}
/// <summary>
/// Resets the event. If the event is already reset, this method does nothing.
/// </summary>
public void Reset()
{
lock (_mutex)
{
if (_tcs.Task.IsCompleted)
{
_tcs = TaskCompletionSourceExtensions.CreateAsyncTaskSource <object>();
}
}
}
Task<T> IAsyncWaitQueue<T>.Enqueue()
{
TaskCompletionSource<T> taskCompletionSource = TaskCompletionSourceExtensions.CreateAsyncTaskSource<T>();
_queue.AddToBack(taskCompletionSource);
return taskCompletionSource.Task;
}