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Symbian3/PDK/Source/GUID-E79D47D6-3FF2-5858-B092-29D39A1CA2B6.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Fri, 22 Jan 2010 18:26:19 +0000
changeset 1 25a17d01db0c
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permissions -rw-r--r--
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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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 xml:lang="en" id="GUID-E79D47D6-3FF2-5858-B092-29D39A1CA2B6"><title>How to commit streams</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>Once data has been externalised to a stream, an application <i>must</i> commit a stream before disposing of the write stream object.</p> <p>This is done by calling <codeph>CommitL()</codeph> on the write stream object. The function itself is a member of the write stream interface class, <codeph>RWriteStream</codeph>.</p> <p>The following example code fragment shows this:</p> <codeblock id="GUID-CB6C4242-D85C-5C8D-BA42-B27E3178E342" xml:space="preserve">...
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TSimple thesimple;
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...
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...              // Construct a TSimple object
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...
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RStoreWriteStream outstream;
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TStreamId id = outstream.CreateLC(*store);
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                 // Externalize the TSimple object
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outstream  &lt;&lt; thesimple;
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                 // Commit changes to the stream
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outstream.CommitL();
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                 // Cleanup the stream object
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CleanupStack::PopAndDestroy();
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...</codeblock> <p><codeph>store</codeph> is a pointer to an already opened stream store.</p> <p>As a simple rule, <codeph>CreateL()</codeph> or <codeph>CreateLC()</codeph> is matched by a call to <codeph>CommitL()</codeph>. More generally, any change to a stream, either the creation of a new one or a change to an existing one, should be matched by a call to <codeph>CommitL()</codeph>.</p> </conbody></concept>
FCL/sftools/depl/docscontent