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51 lines
1.6 KiB
C#
51 lines
1.6 KiB
C#
9 months ago
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/*
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Copyright (c) 2013, 2014 Paolo Patierno
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License v1.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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http://www.eclipse.org/legal/epl-v10.html
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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Contributors:
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Paolo Patierno - initial API and implementation and/or initial documentation
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*/
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using System;
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using System.Collections;
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namespace uPLibrary.Networking.M2Mqtt.Utility
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{
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/// <summary>
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/// Extension class for a Queue
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/// </summary>
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internal static class QueueExtension
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{
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/// <summary>
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/// Predicate for searching inside a queue
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/// </summary>
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/// <param name="item">Item of the queue</param>
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/// <returns>Result of predicate</returns>
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internal delegate bool QueuePredicate(object item);
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/// <summary>
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/// Get (without removing) an item from queue based on predicate
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/// </summary>
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/// <param name="queue">Queue in which to search</param>
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/// <param name="predicate">Predicate to verify to get item</param>
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/// <returns>Item matches the predicate</returns>
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internal static object Get(this Queue queue, QueuePredicate predicate)
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{
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foreach (var item in queue)
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{
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if (predicate(item))
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return item;
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}
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return null;
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}
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}
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}
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