1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

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     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE concept

    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

    12 <concept id="GUID-F86CFD79-88B1-55E0-AF81-4666D97B7AF5" xml:lang="en"><title>Automatic

    13 file deletion on closure</title><shortdesc>This topic describes how a temporary file can be destroyed automatically

    14 when the owning thread closes it or if the owning thread crashes. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

    15 <p>Set <codeph>EDeleteOnClose</codeph> when opening a temporary file to enable

    16 the automatic deletion on closure. <codeph>EDeleteOnClose</codeph> can be

    17 used with <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-87D0C77C-CC63-3D70-BACE-3C5EE702BD37"><apiname>RFile::Temp()</apiname></xref> and <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-1EB4AA8F-9363-3EC5-8AE2-1F70F15FCF15"><apiname>RFile::Create()</apiname></xref>.

    18 For example: </p>

    19 <codeblock id="GUID-F74D3314-7C59-5350-913F-D38AED696799" xml:space="preserve">r = file.Create(TheFs, filename, EFileShareAny | EFileRead | EFileWrite | EDeleteOnClose);</codeblock>

    20 <p>The purpose of this flag is to prevent memory leaks when components that

    21 create temporary files crash. </p>

    22 <section id="GUID-BB928F1C-75DD-409D-8C0A-B753D3B19FE3"><note><ul>

    23 <li id="GUID-BFA882BB-D312-5FBB-906F-5B27A6B4507D"><p>Existing files cannot

    24 be opened with <codeph>EDeleteOnClose</codeph> set. Any attempts to do this

    25 will return the error message <codeph>KErrArgument</codeph>. </p> </li>

    26 <li id="GUID-CA76B615-62CE-59E5-B1D8-B0628728D7C6"><p>Automatic file deletion

    27 is not default behavior. </p> </li>

    28 </ul></note> </section>

    29 </conbody></concept>