public void ExecuteJobs()
{
while (!QueueManager.IsCompleted()) // as long as getting work items
{
WorkerJob workerJob = QueueManager.GetJobItem();
if (workerJob != null)
{
//Stopwatch stopwatch = Stopwatch.StartNew();
//var maxHandleTimes = this.workers.Select(i => i.Value.MaxHandleTime);
//stopwatch.Stop();
//Console.WriteLine($"---------------------------- action taken: {stopwatch.Elapsed} ------------------------");
var duration = workerJob.Duration.TotalMilliseconds;
var closestWorkerIds = workersMaxHandleTime
.Where(kvp => kvp.Value >= duration)
.Select(kvp => (kvp, distance: kvp.Value - duration))
.OrderBy(o => o.distance);
if (closestWorkerIds.Count() > 0)
{
var workerId = closestWorkerIds.First().kvp.Key;
_ = Task.Run(() => workers[workerId].DoWork(workerJob.Method, workerJob.Duration));
}
else
{
Console.WriteLine($"Did not find suitable worker for {workerJob} job.");
}
}
}
}
public static void AddWorkItem(WorkerJob workerItem)
{
bool success;
do
{
success = (workerItem.HighPriority) ? highPriorityQueue.TryAdd(workerItem) : lowPriorityQueue.TryAdd(workerItem);
} while (!success);
}
public static WorkerJob GetJobItem()
{
WorkerJob workerItem = null;
bool success;
do
{
if (highPriorityQueue.Count == 0 && lowPriorityQueue.Count == 0)
{
break; // in case of empty queues
}
success = (highPriorityQueue.Count > 0) ? // <-- always prefer the high priority job queue
highPriorityQueue.TryTake(out workerItem) :
lowPriorityQueue.TryTake(out workerItem);
} while (!success);
return(workerItem);
}
const int NUM_OF_WORKERS = 1000; // predefine the number of resource workers
// API EndPoint
public static void AddNewJob(int id, Action method, TimeSpan duration, bool highPriority)
{
var job = new WorkerJob(id, method, duration, highPriority);
Task AddNewJobTask = Task.Run(() => QueueManager.AddWorkItem(job));
}
