/// <summary>
/// Initialises a new instance of the <see cref="DefaultParallelRunner"/> class.
/// </summary>
/// <param name="degreeOfParallelism">The number of concurrent <see cref="Task"/> used to update an <see cref="IParallelRunnable"/> in parallel.</param>
/// <exception cref="ArgumentException"><paramref name="degreeOfParallelism"/> cannot be inferior to one.</exception>
public DefaultParallelRunner(int degreeOfParallelism)
{
IEnumerable <int> indices = degreeOfParallelism >= 1 ? Enumerable.Range(0, degreeOfParallelism - 1) : throw new ArgumentException("Argument cannot be inferior to one", nameof(degreeOfParallelism));
_disposeHandle = new CancellationTokenSource();
_tasks = indices.Select(index => new Task(Update, index, TaskCreationOptions.LongRunning)).ToArray();
_barrier = degreeOfParallelism > 1 ? new WorkerBarrier(_tasks.Length) : null;
foreach (Task task in _tasks)
{
task.Start(TaskScheduler.Default);
}
}
