public void ThreadX()
{
long res = 0;
for (int i = 0; i < 10000; i++)
{
_locker.Enter();
Interlocked.Increment(ref concurrent);
for (int z = 0; z < 1000; z++)
{
res += res;
}
if (concurrent > 1)
{
Console.WriteLine("{0} concurrency issues!", _locker.GetType().Name);
}
Interlocked.Decrement(ref concurrent);
_locker.Exit();
}
}