Producer–Consumer using BlockingCollection?

BlockingCollection<int> queue = new BlockingCollection<int>();

Task.Run(() =>

{
for(int i = 1; i <= 5; i++)
{

queue.Add(i);

}

queue.CompleteAdding();

});

Task.Run(() =>

{
foreach(var item in queue.GetConsumingEnumerable())
{

Console.WriteLine("Consumed " + item);

}

});

Provides automatic thread synchronization and prevents race conditions.