public void Dispose()
{
lock (workersSync) {
exit = true;
foreach (WorkerWrapper worker in usedWorkers)
{
worker.Dispose();
}
for (int i = 0; i < 5 && usedWorkers.Count > 0; i++)
{
bool workerRemoved = false;
for (int j = usedWorkers.Count - 1; j >= 0; j--)
{
if (usedWorkers [j].IsAlive)
{
continue;
}
usedWorkers.RemoveAt(j);
workerRemoved = true;
}
if (workerRemoved)
{
i = 0;
}
else
{
Thread.Sleep(100);
}
}
while (freeWorkers.Count > 0)
{
WorkerWrapper worker = freeWorkers.Dequeue();
worker.Dispose();
}
}
if (distributor != null && distributor.IsAlive)
{
if (!distributor.Join(200))
{
distributor.Abort();
}
distributor = null;
}
}
private void DistributorThread()
{
while (!exit)
{
JobWrapper job = null;
bool entered = false;
try {
Monitor.Enter(jobsSync);
entered = true;
if (jobs.Count == 0)
{
Monitor.Exit(jobsSync);
entered = false;
jobEnqueued.WaitOne((int)distributorPollWait, false);
Monitor.Enter(jobsSync);
entered = true;
if (exit)
{
break;
}
}
while (jobs.Count > 0)
{
job = jobs.Peek();
if (!job.Aborting)
{
break;
}
job.Finish(new WorkFinishedEventArgs(ThreadState.Unstarted, null));
jobs.Dequeue();
job = null;
}
} finally {
if (entered)
{
Monitor.Exit(jobsSync);
}
}
lock (workersSync) {
for (int i = usedWorkers.Count - 1; i >= 0; i--)
{
WorkerWrapper worker = usedWorkers [i];
if (worker.CheckFinished())
{
usedWorkers.RemoveAt(i);
freeWorkers.Enqueue(worker);
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): worker finished", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
continue;
}
if (worker.CurrentJob.MaxRunningTime <= worker.CurrentJob.TimeStarted)
{
worker.StopWork();
usedWorkers.RemoveAt(i);
freeWorkers.Enqueue(worker);
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): worker stopped", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
}
if (!worker.IsAlive)
{
if (worker.CurrentJob != null && !worker.CurrentJob.IsFinished)
{
worker.CurrentJob.Finish(new WorkFinishedEventArgs(ThreadState.Aborted, null));
}
usedWorkers.RemoveAt(i);
freeWorkers.Enqueue(worker);
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): worker died unexpectedly", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
}
}
if (job != null)
{
WorkerWrapper worker = null;
if (freeWorkers.Count == 0)
{
if (maxWaitBeforeWorkerCreation <= (int)job.TimeEnqueued.TotalMilliseconds &&
usedWorkers.Count < maxWorkers && !exit)
{
worker = new WorkerWrapper(this);
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): worker created", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
}
}
else
{
worker = freeWorkers.Dequeue();
}
if (worker != null)
{
if (worker.StartWork(job))
{
lock (jobsSync) {
jobs.Dequeue();
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): job dequeued", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
}
usedWorkers.Add(worker);
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): worker started", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
}
else
{
freeWorkers.Enqueue(worker);
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): worker start failed", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
}
}
}
bool workerDisposed = false;
do
{
if (freeWorkers.Count <= minWorkers)
{
break;
}
WorkerWrapper worker = freeWorkers.Peek();
if (maxWorkerSleepTime > (int)worker.TimeSleeping.TotalMilliseconds)
{
continue;
}
freeWorkers.Dequeue();
worker.Dispose();
workerDisposed = true;
#if DEBUG_THREADPOOL
Debug.WriteLine(string.Format("{0} > Thread pool (jq:{1}, wu:{2},wf:{3}): worker disposed", DateTime.Now.ToString("HH:mm:ss.ff"), jobs.Count, usedWorkers.Count,
freeWorkers.Count));
#endif
} while (workerDisposed);
}
}
}
