public static IEnumerable <T> SelectAsParallel <T>(this IEnumerable <T> source, Func <T, T> action)
{
if (source.IsNull())
{
throw new ArgumentNullException("source");
}
if (action.IsNull())
{
throw new ArgumentNullException("action");
}
return(source.AsParallel().AsOrdered().Select(item => action(item)));
}
/// <summary>
/// Performs the specified <paramref name="action"/> in a parallel, on each element of the <see cref="T:IEnumerable"/>.
/// </summary>
/// <typeparam name="T">The <see cref="Type"/> of element in the <paramref name="source"/>.</typeparam>
/// <param name="source">A sequence of elements.</param>
/// <param name="action">The <see cref="T:Action"/> delegate to perform on each element of the <see cref="T:IEnumerable"/>.</param>
/// <exception cref="ArgumentNullException">thrown if the <paramref name="source"/> or <paramref name="action"/> is <c>Null</c>.</exception>
public static void ForEachAsParallel <T>(this IEnumerable <T> source, Action <T> action)
{
if (source.IsNull())
{
throw new ArgumentNullException("source");
}
if (action.IsNull())
{
throw new ArgumentNullException("action");
}
source.AsParallel().ForAll(item => action(item));
}
public static void ForEachParallel <T>(this IEnumerable <T> items, Action <T> action, bool parallel)
{
if (parallel)
{
Action <T> action2 = action;
if (ParallelPreAction != null)
{
action2 = t => { ParallelPreAction(); action(t); }
}
;
items.AsParallel().ForAll(action2);
}
else
{
items.ForEach(action);
}
}
protected void AddRange(IEnumerable <T> items)
{
items.AsParallel().ForAll(item => this.Items.Add(item));
}
