using System.Collections;
namespace uPLibrary.Networking.M2Mqtt.Utility
{
///
/// Extension class for a Queue
///
internal static class QueueExtension
{
///
/// Predicate for searching inside a queue
///
/// Item of the queue
/// Result of predicate
internal delegate bool QueuePredicate(object item);
///
/// Get (without removing) an item from queue based on predicate
///
/// Queue in which to search
/// Predicate to verify to get item
/// Item matches the predicate
internal static object Get(this Queue queue, QueuePredicate predicate)
{
foreach (var item in queue)
{
if (predicate(item))
return item;
}
return null;
}
}
}