Symbian3/SDK/Source/GUID-BCB0E50F-B22E-5964-BB68-BEE1870D9C79.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Thu, 21 Jan 2010 18:18:20 +0000
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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 task
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  PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">
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<task xml:lang="en" id="GUID-BCB0E50F-B22E-5964-BB68-BEE1870D9C79"><title>Configuring Log Engine </title><shortdesc>This tutorial describes how to configure Log Engine using <apiname>TLogConfig</apiname> class. </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody> <context id="GUID-F9BA2879-3ECB-5664-9DA2-F26D9E753BDB"><p>There are three parameters which you can configure at run time using a Log Engine client. They are implemented as the three members of a <xref href="GUID-2DFAE1E1-55D4-3319-86A1-7582EB1C6BB6.dita"><apiname>TLogConfig</apiname></xref> class: </p> <ul><li id="GUID-2B751065-91F0-5FD9-A497-8539DBC11289"><p> <codeph>iMaxLogSize</codeph>, the maximum size of an event log, </p> </li> <li id="GUID-31A4E81C-571F-50B8-AB98-7D365B71CD67"><p> <codeph>iMaxRecentLogSize</codeph>, the maximum size of a recent list, and </p> </li> <li id="GUID-74C0D6ED-A6AF-5682-B905-2D58CE1364D4"><p> <codeph>iMaxEventAge</codeph>, the maximum age of a logged event. </p> </li> </ul> <p> </p> </context> <steps id="GUID-AD40FCED-2095-593A-96FD-B0536FBDAE66"> <step id="GUID-605DC5E4-7B92-5A07-B6BE-37782F698D55"><cmd>create a <xref href="GUID-2DFAE1E1-55D4-3319-86A1-7582EB1C6BB6.dita"><apiname>TLogConfig</apiname></xref> object </cmd> </step> <step id="GUID-8B08BE98-EC49-54D3-92E1-99BC0833AD0B"><cmd/><info>set the required values to the members <codeph>iMaxLogSize</codeph>, <codeph>iMaxRecentLogSize</codeph> and <codeph>iMaxEventAge</codeph>  </info> </step> <step id="GUID-3EBEF31F-467B-51E0-9909-93034306260A"><cmd/><info>pass it to the <xref href="GUID-2DFAE1E1-55D4-3319-86A1-7582EB1C6BB6.dita"><apiname>ChangeConfig()</apiname></xref> function of a log client. </info> </step> </steps> <result id="GUID-DE7C6982-718C-5679-8BEC-08A412620BF8"><p>The Log Engine will be configured with new values. </p> </result> <postreq id="GUID-7BD74B31-4C3D-5936-B461-0A8B901DA106"><p>The <xref href="GUID-2DFAE1E1-55D4-3319-86A1-7582EB1C6BB6.dita"><apiname>TLogConfig</apiname></xref> class also has the two functions <xref href="GUID-2DFAE1E1-55D4-3319-86A1-7582EB1C6BB6.dita"><apiname>InternalizeL()</apiname></xref> and <xref href="GUID-2DFAE1E1-55D4-3319-86A1-7582EB1C6BB6.dita"><apiname>ExternalizeL()</apiname></xref> which implement streaming input and output of a <xref href="GUID-2DFAE1E1-55D4-3319-86A1-7582EB1C6BB6.dita"><apiname>TLogConfig</apiname></xref> object. </p> </postreq> </taskbody><related-links><link href="GUID-E4A950EA-5671-5755-B3EF-5D6B90E19AE6.dita"><linktext>Maintaining Log Events</linktext> </link> <link href="GUID-BE65B3A7-04E8-5406-B46A-09E2608E0F1F.dita"><linktext>Requesting Log Engine Notifications</linktext> </link> <link href="GUID-2022F702-9899-5798-8932-D70119C7177D.dita"><linktext>Setting Up A Log Engine Client</linktext> </link> <link href="GUID-55ECBCF5-FC29-5A4A-A3C6-1CB1C0D562CE.dita"><linktext>Displaying Log Events</linktext> </link> </related-links></task>