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<task id="GUID-45CEAFA0-5545-55FC-8807-E6EC7E0CA6F9" xml:lang="en"><title>Managing

Shutdown</title><shortdesc>This document explains how to handle and acknowledge shutdown notification

and close the session. </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody>

<prereq><p>Before you start, you must know: </p> <ul>

<li id="GUID-B7B23533-D737-52F4-853B-CF3751EA9433"><p>the APIs for components

that must be system state aware. </p> </li>

<li id="GUID-BD498155-27BD-5EDB-808E-D35B4570FBB9"><p>the shutdown state events

such as Start-up, Normal, Shutdown and Fail. </p> </li>

</ul> </prereq>

<context><p>The <xref href="GUID-C7F9288F-75A5-3CD4-B5A5-9386D2763B82.dita"><apiname>AcknowledgeAndRequestStateNotification()</apiname></xref> acknowledges

the request and registers the component for any state changes. The <xref href="GUID-C7F9288F-75A5-3CD4-B5A5-9386D2763B82.dita"><apiname>AcknowledgeAndRequestStateNotification()</apiname></xref> is

called if the component needs another state change notification else <xref href="GUID-0ADDBE59-4C2B-3B22-82A9-8B1FD7988897.dita"><apiname>AcknowledgeStateNotification()</apiname></xref> is

called. These functions are called only after the clean-up task is completed. </p> <p>Follow

the steps given below to handle and acknowledge shutdown notification, and

also to close the session:</p></context>

<steps id="GUID-AF548DB5-F810-5635-8B72-DADC1E630144">

<step id="GUID-A5A9610A-D67A-5166-B45A-0ACDE496C11E"><cmd/>

<info>Handle and Acknowledge shutdown notification. </info>

<substeps id="GUID-F1A6B778-E5F0-5138-B468-640C937206ED">

<substep id="GUID-ED8932A0-9835-5540-A192-5FC34653A03E"><cmd/>

<info>Acknowledge the request and register the component for any state changes

as shown in the code snippet using <codeph>AcknowledgeAndRequestStateNotification()</codeph>. </info>

<stepxmp><codeblock id="GUID-7BC23ED0-CAB7-5BB6-813E-5854FCEFC8CA" xml:space="preserve">iStateAwareSession.AcknowledgeAndRequestStateNotification( KErrNone, iStatus );</codeblock> </stepxmp>

</substep>

<substep id="GUID-5E257F7F-8E98-5A28-953A-9D3FD382CE89"><cmd/>

<info>Handle the acknowledge the state change and request notification for

the next state change as shown in the code snippet using <codeph>AcknowledgeStateNotification()</codeph>  </info>

<stepxmp><codeblock id="GUID-475C8603-94C2-5AD9-B8D8-E89B7AC23628" xml:space="preserve">iStateAwareSession.AcknowledgeStateNotification( KErrNone );</codeblock> </stepxmp>

</substep>

</substeps>

</step>

<step id="GUID-7FFFEBF2-34CD-52D6-831D-E9725AB15F19"><cmd/>

<info>Close the session </info>

<substeps id="GUID-7757B840-53FC-5F89-8FD4-D01457F60D45">

<substep id="GUID-C5C2012A-DE1E-545B-A1D5-80635E53DF85"><cmd/>

<info>Free the resources that were used during the <codeph>Connect()</codeph> as

shown in the code snippet using the <codeph>Close()</codeph>. </info>

<stepxmp><codeblock id="GUID-4AE72CE5-4E7E-550B-A310-50964D503CC5" xml:space="preserve">

CExample::~CExample

{

    iStateAwareSession.Close();

}

</codeblock> </stepxmp>

</substep>

</substeps>

</step>

</steps>

<result><p>The component is acknowledged for the shutdown notification and

the session is closed. </p> </result>

</taskbody><related-links>

<link href="GUID-833BF27D-B288-506A-B545-E748C9FE7AEA.dita"><linktext>Making a

Component Shutdown Aware</linktext></link>

<link href="GUID-BBA7D3E2-1766-53CA-8D58-4F0B3BAA4873.dita"><linktext>Registering

for Shutdown Notification</linktext></link>