Symbian3/SDK/Source/GUID-21C04887-9F9C-5066-AA1D-B30C433CC0AE.dita
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 11 Jun 2010 15:24:34 +0100
changeset 9 59758314f811
parent 0 89d6a7a84779
permissions -rw-r--r--
Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License 
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"Eclipse Public License v1.0" which accompanies this distribution, 
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors: 
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-21C04887-9F9C-5066-AA1D-B30C433CC0AE" xml:lang="en"><title>Circular
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Buffers Overview</title><shortdesc>This document is an overview of circular buffers.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
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<section id="GUID-3A4A5CC7-45A8-4EEB-9CDE-4C9E1FC9FEB4"><title>Purpose</title> <p>Provides a fixed length first-in first-out
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queue of fixed-size objects. </p> </section>
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<section id="GUID-4C160263-5EA7-4AB8-BDB1-A5649654A9C3"><title>Description</title> <p>Note the following properties of circular
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buffers:</p> <ul>
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<li id="GUID-03692D38-C81C-51AA-B250-C5A47C0F415D"><p>only simple add, remove,
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and reset operations are available</p> </li>
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<li id="GUID-491610AC-DFBF-5B61-B7F2-706DAF8E2BB3"><p>elements are added to
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the head of the queue and removed from the tail of the queue</p> </li>
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<li id="GUID-357A29E1-5447-5638-97D5-5B3C9E61E6E8"><p>all elements in a circular
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buffer must be objects of the same type</p> </li>
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</ul> <p>Circular buffers are provided by <xref href="GUID-1D73835F-4361-3216-8EFC-669364E3F5E7.dita"><apiname>CCirBuf</apiname></xref> .</p> <p>A
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predefined circular buffer of unsigned integers is provided by <xref href="GUID-620EC30F-933F-3073-9E5F-CAC9F2BA4623.dita"><apiname>CCirBuffer</apiname></xref>.</p> </section>
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<section id="GUID-732C72C7-02E9-46F8-943F-19ECBD3283F2"><title>See also</title> <p><xref href="GUID-B1BDF68C-F989-56BD-AED4-727595D7355C.dita">Doubly
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Linked Lists Overview</xref> </p> </section>
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</conbody></concept>