private BackgroundWorker GetBackgroundWorker(DoWorkQueuedEventHandler doWork, RunWorkerCompletedEventHandler workerCompleted)
{
BackgroundWorker bw = new BackgroundWorker();
bw.WorkerReportsProgress = false;
bw.WorkerSupportsCancellation = false;
bw.DoWork += (sender, args) =>
{
if (doWork != null)
{
args.Result=doWork(this, new DoWorkEventArgs(args.Argument));
}
};
bw.RunWorkerCompleted += (sender, args) =>
{
if (workerCompleted != null)
{
object result = args.Error == null ? args.Result : null;
workerCompleted(this,
new RunWorkerCompletedEventArgs(result, args.Error,
args.Cancelled));
}
Queue.Dequeue();
lock (_lock)
{
if (Queue.Count > 0)
{
((BackgroundWorker)this.Queue.Peek()).RunWorkerAsync();
}
}
};
return bw;
}
private BackgroundWorker GetBackgroundWorker(DoWorkQueuedEventHandler doWork, RunWorkerCompletedEventHandler workerCompleted)
{
BackgroundWorker bw = new BackgroundWorker();
bw.WorkerReportsProgress = false;
bw.WorkerSupportsCancellation = false;
bw.DoWork += (sender, args) =>
{
if (doWork != null)
{
args.Result = doWork(this, new DoWorkEventArgs(args.Argument));
}
};
bw.RunWorkerCompleted += (sender, args) =>
{
if (workerCompleted != null)
{
object result = args.Error == null ? args.Result : null;
workerCompleted(this,
new RunWorkerCompletedEventArgs(result, args.Error,
args.Cancelled));
}
Queue.Dequeue();
lock (_lock)
{
if (Queue.Count > 0)
{
((BackgroundWorker)this.Queue.Peek()).RunWorkerAsync();
}
}
};
return(bw);
}
public void RunWorkerAsync(DoWorkQueuedEventHandler doWork, RunWorkerCompletedEventHandler workerCompleted)
{
BackgroundWorker bw = GetBackgroundWorker(doWork, workerCompleted);
Queue.Enqueue(bw);
lock (_lock)
{
if (Queue.Count == 1)
{
((BackgroundWorker)this.Queue.Peek()).RunWorkerAsync();
}
}
}
public void RunWorkerAsync(DoWorkQueuedEventHandler doWork, RunWorkerCompletedEventHandler workerCompleted)
{
BackgroundWorker bw = GetBackgroundWorker(doWork, workerCompleted);
Queue.Enqueue(bw);
lock (_lock)
{
if (Queue.Count == 1)
{
((BackgroundWorker)this.Queue.Peek()).RunWorkerAsync();
}
}
}
