public bool TryAdd(TResource resource)
{
var taskCompletionSource = new TaskCompletionSource <bool>();
var request = new AddResourceMessage(resource, taskCompletionSource);
if (!_messageHandler.Post(request))
{
taskCompletionSource.SetException(GetObjectDisposedException());
}
// We can wait synchronously for the Task Result because RemoveResourceRequestMessage
// will always be handled immediately by the ActionBlock.
return(taskCompletionSource.Task.Result);
}
private void HandleAddResource(AddResourceMessage addResourceMessage)
{
// Only add the resource if we didn't already exceed the maximum
var success = _availableResources.Count < _maxNumResources;
if (success)
{
var resource = addResourceMessage.Resource;
var timestampedResource = TimestampedResource.Create(resource);
_availableResources.Enqueue(timestampedResource);
}
addResourceMessage.ResultTaskCompletionSource.SetResult(success);
}