Thread queues for dummies

Question

I have what I assume is a pretty common threading scenario:

• I have 100 identical jobs to complete
• All jobs are independent of each other
• I want t

Answer 1

ThreadPool might be the way to go. The SetMaxThreads method would be able to restrict the number of threads which are being executed. However, this restricts the maximum number of threads for the process/AppDomain. I wouldn't suggest using SetMaxThreads if the process is running as a service.

private static ManualResetEvent manual = new ManualResetEvent(false);
private static int count = 0;

public void RunJobs( List states )
{
     ThreadPool.SetMaxThreads( 15, 15 );

     foreach( var state in states )
     {
          Interlocked.Increment( count );
          ThreadPool.QueueUserWorkItem( Job, state );
     }

    manual.WaitOne();
}

private static void Job( object state )
{
    // run job
    Interlocked.Decrement( count );
    if( Interlocked.Read( count ) == 0 ) manual.Set();
}