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

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

     3 <!-- This component and the accompanying materials are made available under the terms of the License 

     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-7D4F429E-FC65-55FC-BD4D-8F351E78AF33" xml:lang="en"><title>Architecture</title><shortdesc>This topic describes the architecture of the domain manager.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

    13 <p>A domain provides a way to group programs by their power requirements and

    14 dependencies. The domain manager is a system server that handles the registration

    15 of applications with domains, manages domain-specific power state transitions

    16 and system-wide power state transitions. </p>

    17 <fig id="GUID-303BF4E4-B4D6-599A-A6EE-5C2B8EFF5D3C">

    18 <image href="GUID-F1E8B6F9-AAEA-5A55-B838-36C74FC8B4BA_d0e363332_href.png" placement="inline"/>

    19 </fig>

    20 <ul>

    21 <li id="GUID-8679AD4F-9576-5D20-BA1E-2C051795D3AB"><p>Applications interface

    22 with the domain manager through the <xref href="GUID-26767FE7-3AF2-3E21-9965-915855B7AB55.dita"><apiname>RDmDomain</apiname></xref> class. </p> </li>

    23 <li id="GUID-2B5F11C7-303E-5918-A81D-4EA4E91F998C"><p>Domain management policy

    24 has control over the domain manager and takes decisions about system-wide

    25 and domain-wide power-state transitions. Typically, the code that implements

    26 domain management policy will form part of, or at least be accessible to,

    27 the UI framework. The interface with the domain manager is <xref href="GUID-C1C17273-1C4A-35D5-A564-F7FC81EDFB7B.dita"><apiname>RDmDomainManager</apiname></xref>. </p> </li>

    28 <li id="GUID-183A5AC1-447F-595C-96D2-944A7C45ABA2"><p>The domains and their

    29 characteristics for a phone are defined in a domain management policy DLL

    30 that implements the <xref href="GUID-15CAA28D-943B-3B92-B4E1-8AA466DFA407.dita"><apiname>DmPolicy</apiname></xref> interface. This DLL is device-specific. </p> </li>

    31 <li id="GUID-13B5DEE3-221A-5A67-8EAD-131CB36A85C0"><p>The domain manager interfaces

    32 with the kernel-side power manager through the <xref href="GUID-15D25C07-CFD2-32CE-AD22-E17D512D8E87.dita"><apiname>Power</apiname></xref> class. </p> </li>

    33 </ul>

    34 </conbody></concept>