使用不带列表的 Parallel.ForEach

Question

I want to use Parallel.ForEach as a multi-threading method that executes a code without lists or file reading.

I want to do it like this:

Parallel.ForEach
{
      Console.WriteLine("test");
}

So it will write test without stopping. I will use an IF statement to check if it should be stopped or no.

Is it possible to use Parallel.ForEach like that?

Any help would be appreciated.

Thanks!

Answer 1

Multi-threading this is not going to achieve anything, but if you insist:

bool _shouldStop { get; set; } = false;
bool _shouldStopSecondThread { get; set; } = false;

public static Main(string[] args)
{

Thread thread = new Thread(print);
Thread anotherThread = new Thread(anotherPrint);
thread.Start();
anotherThread.Start();

//your code here while the worker writes "Test" to console

if(condition) {
   _shouldStop=true;
   _shouldStopSecondThread=false; 
}
}    
//...

public void print()
{
   while (!_shouldStop)
   {
       Console.WriteLine("test");
   }
   Console.WriteLine("worker terminated");
}

public void anotherPrint()
{
   while (!_shouldStopSecondThread)
   {
       Console.WriteLine("test");
   }
   Console.WriteLine("worker terminated");
}

Answer 2

What you want is not very clear but you may try this approach:

        var parallelDrege = Environment.ProcessorCount;
        while (true)
        {
            Parallel.For(0, parallelDrege, t =>
            {
                Console.WriteLine("test");
            });
        }

Set parallelDegre to the desired value and be aware that every batch will be processed in parallel but from batch to batch is a sequetial process.

Hope this help!