private QueueWorker EnsureWorkerPool(string queue)
{
QueueWorker worker;
if (!_workerPool.TryGetValue(queue, out worker))
{
lock (_workerPool)
{
if (!_workerPool.TryGetValue(queue, out worker))
{
worker = new QueueWorker(queue);
QueueWorker parent = worker;
for (var i = 0; i < _defaultWorkersPerQueue; i++)
{
parent.Next = new QueueWorker(queue);
parent = parent.Next;
}
parent.Next = worker;
worker = _workerPool.GetOrAdd(queue, worker);
}
}
}
return(worker);
}
private void AssignWork(QueueWorker worker)
{
var root = worker;
var selectedWorker = worker;
var db = _connectionMultiplexer.GetDatabase();
string value = db.ListRightPopLeftPush(selectedWorker.Queue, selectedWorker.WorkQueue);
if (value != null) // moved message to worker queue
{
worker.DoWork();
}
}