/// <summary>
/// Initializes the queue.
/// </summary>
/// <param name="onEnqueueAsync">Callback routine to be called when a new item is added to the queue.</param>
public AsyncQueue(OnEnqueueAsync onEnqueueAsync)
{
Guard.NotNull(onEnqueueAsync, nameof(onEnqueueAsync));
this.items = new ConcurrentQueue <T>();
this.signal = new AsyncManualResetEvent();
this.onEnqueueAsync = onEnqueueAsync;
this.cancellationTokenSource = new CancellationTokenSource();
this.consumerTask = ConsumerAsync();
}
/// <summary>
/// Initializes the queue either in blocking dequeue mode or in callback mode.
/// </summary>
/// <param name="onEnqueueAsync">Callback routine to be called when a new item is added to the queue, or <c>null</c> to operate in blocking dequeue mode.</param>
public AsyncQueue(OnEnqueueAsync onEnqueueAsync = null)
{
this.callbackMode = onEnqueueAsync != null;
this.lockObject = new object();
this.items = new Queue <T>();
this.signal = new AsyncManualResetEvent();
this.onEnqueueAsync = onEnqueueAsync;
this.cancellationTokenSource = new CancellationTokenSource();
this.consumerTask = this.callbackMode ? this.ConsumerAsync() : null;
}
/// <summary>
/// Initializes the queue either in blocking dequeue mode or in callback mode.
/// </summary>
/// <param name="onEnqueueAsync">
/// Callback routine to be called when a new item is added to the queue, or <c>null</c> to
/// operate in blocking dequeue mode.
/// </param>
public AsyncQueue(OnEnqueueAsync onEnqueueAsync = null)
{
callbackMode = onEnqueueAsync != null;
lockObject = new object();
items = new Queue <T>();
signal = new AsyncManualResetEvent();
this.onEnqueueAsync = onEnqueueAsync;
cancellationTokenSource = new CancellationTokenSource();
asyncContext = new AsyncLocal <AsyncContext>();
ConsumerTask = callbackMode ? ConsumerAsync() : null;
}
/// <summary>
/// Initializes the queue either in blocking dequeue mode or in callback mode.
/// </summary>
/// <param name="onEnqueueAsync">Callback routine to be called when a new item is added to the queue, or <c>null</c> to operate in blocking dequeue mode.</param>
internal AsyncQueue(OnEnqueueAsync onEnqueueAsync = null)
{
this._callbackMode = onEnqueueAsync != null;
this._lockObject = new object();
this._items = new Queue <T>();
this._signal = new AsyncManualResetEvent();
this._onEnqueueAsync = onEnqueueAsync;
this._cancellationTokenSource = new CancellationTokenSource();
this._asyncContext = new AsyncLocal <AsyncContext>();
this.ConsumerTask = this._callbackMode ? this.ConsumerAsync() : null;
}
/// <summary>
/// Initializes the queue either in blocking dequeue mode or in callback mode.
/// </summary>
/// <param name="onEnqueueAsync">Callback routine to be called when a new item is added to the queue, or <c>null</c> to operate in blocking dequeue mode.</param>
public AsyncQueue(OnEnqueueAsync onEnqueueAsync = null)
{
this.callbackMode = onEnqueueAsync != null;
this.lockObject = new object();
this.items = new Queue <T>();
this.signal = new AsyncManualResetEvent();
this.onEnqueueAsync = onEnqueueAsync;
this.cancellationTokenSource = new CancellationTokenSource();
this.ConsumerTask = this.callbackMode ? this.ConsumerAsync() : null;
this.callbackExecutionInProgress = new AsyncLocal <bool>()
{
Value = false
};
this.disposeRequested = new AsyncLocal <bool>()
{
Value = false
};
}
