author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 15:21:33 +0300 | |
branch | RCL_3 |
changeset 25 | 7333d7932ef7 |
parent 23 | cd189dac02f7 |
child 26 | 8b7f4e561641 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* CSisRegistryCache - class used to store and access registry entry information in RAM |
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* serving as a "cache" alternative to reading/seaching from other storage media |
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* |
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*/ |
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/** |
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@file |
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@released |
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@internalComponent |
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*/ |
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#ifndef __SISREGISTRYCACHE_H__ |
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#define __SISREGISTRYCACHE_H__ |
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#include <e32base.h> |
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#include <f32file.h> |
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#include <swi/swiobserverclient.h> |
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#include <s32strm.h> |
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#include <s32mem.h> |
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#include "sisregistrylog.h" |
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class RReadStream; |
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class RWriteStream; |
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namespace Swi |
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{ |
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class CIntegrityServices; |
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class CSisRegistryPackage; |
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class CSisRegistryFile; |
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class CSisRegistryObject; |
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class CSisRegistryToken; |
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class CHashContainer; |
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class CSisRegistryFileDescription; |
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class TSisTrustStatus; |
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/** |
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* @internalComponent |
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* @released |
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*/ |
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class CSisRegistryCache : public CBase |
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{ |
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public: |
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static CSisRegistryCache* NewL(); |
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static CSisRegistryCache* NewLC(); |
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~CSisRegistryCache(); |
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/** |
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* Returns the current list of registered Uids, even those on removable media |
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*/ |
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void UidListL(RArray<TUid>& aUids) const; |
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/** |
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* Returns the current list of registered packages, even those on removable media |
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*/ |
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void PackageListL(RPointerArray<CSisRegistryPackage>& aPackages) const; |
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/** |
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* Returns the current list of registered packages, even those on removable media |
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*/ |
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void PackageAugmentationsL(const TUid aUid, RPointerArray<CSisRegistryPackage>& aPackages) const; |
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/** |
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* Returns the number of augmentations of a registred package with the passed UID |
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* |
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* @param aUid the UID of the package |
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* @return the augmentations number of the package |
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*/ |
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TInt PackageAugmentationsNumber(const TUid aUid) const; |
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/** |
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* Returns the Rfs handle, serves as a central point for all RFs calls |
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*/ |
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RFs& RFsHandle(); |
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/** |
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* Returns a number between 1 and 0xFFFFFFFF, which internally identifies |
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* a subsession and the assocaited registry entry |
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*/ |
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static TUint AllocateSubsessionId(); |
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/** |
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* Perform search of whether a specific object has been registered |
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*/ |
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TBool IsRegistered(const TUid aUid) const; |
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TBool IsRegistered(const CSisRegistryPackage& aPackage) const; |
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TBool IsRegistered(const CHashContainer& aHashContainer) const; |
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105 |
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/** |
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* Perform search of whether a specific object (package, token) |
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* has been registered conforming to specific search arguments. If found returns |
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* reference to the object in question leave if not found, or if error |
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*/ |
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CSisRegistryPackage& PackageL(const TUid aUid) const; |
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CSisRegistryPackage& PackageL(const TUid aUid, TInt aIndex) const; |
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CSisRegistryPackage& PackageL(const TDesC& aName, const TDesC& aVendor) const; |
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CSisRegistryToken& TokenL(const TUid aUid, const TDesC& aName, const TDesC& aVendor) const; |
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CSisRegistryToken& TokenL(const TUid aUid, TInt aIndex) const; |
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116 |
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117 |
/** |
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* create an object from registry file |
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119 |
*/ |
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CSisRegistryObject* ObjectL(TUid aUid, const TDesC& aName, const TDesC& aVendor); |
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CSisRegistryObject* ObjectL(TUid aUid, TInt aIndex); |
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CSisRegistryObject* ObjectL(const CSisRegistryToken& aToken); |
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123 |
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CSisRegistryPackage& SidToPackageL(const TUid aSid) const; |
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void SidToPackageL(const TUid aSid, RArray<CSisRegistryPackage>& aListMatchingPackages ) const; |
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126 |
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127 |
/** |
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* Find the given filename from the list of all tokens. |
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* Return whether file is modifiable. |
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130 |
*/ |
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TBool ModifiableL(const TDesC& aFileName); |
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132 |
|
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133 |
/** |
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* Find the given filename from the list of all tokens. |
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* Return its hash. |
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*/ |
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CHashContainer* HashL(const TDesC& aFileName); |
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138 |
|
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void OpenReadHandleL(const CSisRegistryPackage& aPackage, TUint& aId); |
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void CloseReadHandleL(TUint aId); |
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141 |
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CSisRegistryFile& HandleEntryL(TUint aId); |
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CSisRegistryObject& EntryObjectL(TUint aId); |
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144 |
|
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145 |
|
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void DependentsPackagesL(const CSisRegistryObject& aObject, |
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RPointerArray<CSisRegistryPackage>& aDependents); |
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148 |
|
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void EmbeddingPackagesL(const CSisRegistryObject& aObject, |
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RPointerArray<CSisRegistryPackage>& aEmbedding); |
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151 |
|
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void GenerateChainListL(const CSisRegistryObject& aObject, |
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RPointerArray<HBufC8>& aChainList); |
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154 |
|
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/** |
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Loads a single controller belonging to the registry object and |
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places the controller buffer on the cleanup stack. |
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158 |
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@param aObject The SIS registry object that owns the controller |
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@param aIndex The index of the controller |
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@return a pointer to the buffer containing the controller. |
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*/ |
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HBufC8* LoadControllerLC(const CSisRegistryObject& aObject, TUint aIndex); |
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164 |
|
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void GenerateControllersArrayL(const CSisRegistryObject& aObject, |
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RPointerArray<HBufC8>& aControllers); |
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167 |
|
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// drive oriented functionality |
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void AddDriveAndRefreshL(TInt aDrive); |
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void RemoveDriveAndRefresh(TInt aDrive); |
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171 |
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inline TUint FixedDrives() const; |
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|
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void RemoveRegistryEntryL(const CSisRegistryObject& aObject, CIntegrityServices& aIntegrityService); |
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void RemoveRegistryFilesL(const CSisRegistryObject& aObject, CIntegrityServices& aIntegrityService); |
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void AddRegistryEntryL(CSisRegistryObject& aObject, CIntegrityServices& aIntegrityService, const TDesC8& aController); |
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177 |
|
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/// Regenerates the cache to match the files on disk |
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// Existing integrity services journal files will be committed. |
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void RegenerateCacheL(); |
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|
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/** |
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* Updates the trust status settings in the registry for the |
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* package identified by uid. Note that this updates the registry's |
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* file system. |
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* |
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* @param uid The uid of the registry entry to be updated |
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* @param status The new trust status values to assign to the entry |
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* |
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* @return KErrNone on success |
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* @return KErrInUse if another process holds the registry file requiring the update |
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*/ |
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TUint UpdateTrustStatusL(const TUid& uid, |
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const TSisTrustStatus& status ); |
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|
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TBool IsSidPresent(const TUid aSid) const; |
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|
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/** |
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* Sets the remove with last dependent flag in the registry for the |
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* package identified by uid. Note that this updates the registry's |
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* file system. |
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* |
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* @param uid The uid of the registry entry to be updated |
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* @param status The new trust status values to assign to the entry |
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* |
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* @return KErrNone on success |
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* @return KErrInUse if another process holds the registry file requiring the update |
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*/ |
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TUint SetRemoveWithLastDependentL(const TUid& uid); |
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|
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/** |
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* Returns an array of the currently installed packages which can be removed |
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* (including augmentations). |
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* |
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* @param aPackages The array of installed packages which are removable |
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*/ |
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void RemovablePackageListL(RPointerArray<CSisRegistryPackage>& aPackages); |
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|
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/** |
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* Performs a roll back and then regenerates the cache to match the registry files on disk |
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*/ |
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void RecoverL(); |
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|
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private: |
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void ConstructL(); |
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|
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/** |
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* Used to locate the index of a registry file index in iFiles, which corresponds to |
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* aId argument value |
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*/ |
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TInt FindReadHandleIndx(TUint aSubsessionId); |
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|
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/** |
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* Used to cleanup the object as a part of a reset. |
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*/ |
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void CleanUp(); |
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|
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/** |
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* Builds the array of installed packages by scanning for UID directories |
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* within the SwiRegistry path. |
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* |-UID(hex)-| |
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* The path is in the form ...\sys\install\swiregistry\uuuuuuuu\ |
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*/ |
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void BuildUidListL(); |
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|
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/** |
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* Builds the list with underlying files in a specific package directory |
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*/ |
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void BuildFileListL(TUid aUid, const TDesC& aUidPath); |
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|
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void BuildRomListL(); |
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void RegisterInRomControllerL(const TDesC& aFileName); |
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void DiscoverUidsL(TInt aDrive); |
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void DiscoverStubsL(TInt aDrive); |
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void RegisterControllerL(const TDesC& aFileName, CFileMan& aFileMan); |
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void DiscoverControllersL(const TDesC& aRegistryPath, const TDesC& aDirectoryName); |
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TBool IdentifyControllerL(TUid aUid, TInt aAugmentationIndex, const TDesC& aFileName); |
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inline TBool UseIntegrityServices() const; // Integrity services is not needed during ROM stub processing |
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|
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/** |
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* Cache internal state management |
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*/ |
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|
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// check whether last time SisRegistryServer closed down correctly |
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TBool BackupExists(); |
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|
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// use backup file to initialise internal information; |
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// files are committed at the end of the process |
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void InitFromBackupL(); |
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|
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// used after a SisRegistryServer crashed / at first start up |
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// files are committed at the end of the process |
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void InitStartUpL(); |
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|
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// creates a copy of registry internal state in a file |
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void StoreBackupL(); |
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|
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/** |
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* Drive management oriented |
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*/ |
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void InitDrivesL(); |
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void UpdatePackagePresentStateL(); |
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|
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// create an array of the drives used by a specific installed package |
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void ControllerDriveListL(const CSisRegistryObject& aObject, RArray<TInt>& aDriveList); |
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|
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void AddEntryL(CSisRegistryObject& aObject, CIntegrityServices& aIntegrityService); |
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void RemoveEntryL(const CSisRegistryPackage& aPackage, CIntegrityServices& aIntegrityService); |
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|
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void AddControllerL(const CSisRegistryObject& aObject, CIntegrityServices& aIntegrityService, const TDesC8& aBuffer, const TInt aDrive); |
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TBool RemoveControllerL(const CSisRegistryObject& aObject, CIntegrityServices& aIntegrityService, TInt aDrive); |
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|
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void AddCleanupInfrastructureL(CSisRegistryObject& aObject, CIntegrityServices& aIntegrityServices, const TDesC8& aControllerBuffer); |
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void RemoveCleanupInfrastructureL(const CSisRegistryObject& aObject, CIntegrityServices& aIntegrityServices); |
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|
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/** |
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* Persists the provided registry object into the specified file. Note all |
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* other CSisRegistryFile objects refering to the specified file must have |
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* their streams closed before calling this method. |
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* |
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* @param filename The file to write |
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* @param obj The object to persist |
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**/ |
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void UpdateRegistryFileL(const TFileName& filename, |
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const CSisRegistryObject& obj); |
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|
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void ReadSymbianHeaderL(RFile& aFile, TUid& aUid1, TUid& aUid2, TUid& aUid3); |
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|
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TUid IdentifyUidFromSisFileL(TDesC& aFilename); |
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|
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/** |
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* Resolves and sets the index value on embedded packages |
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*/ |
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void ResolveEmbeddedPackage(CSisRegistryPackage* aPackage); |
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|
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/** |
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* Updates the localizedvendorname and packagenames as per the current |
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* language of the device |
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*/ |
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void UpdateLocalizedNamesL(); |
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|
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void CloseAllHandlesForUid(const TUid& aUId); |
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|
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void ReloadAllHandlesForUidL(const TUid& aUId, const HBufC *registryFilename); |
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325 |
|
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TBool IsFirmwareUpdatedL(); |
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|
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void UpdateRecentFWVersionL(); |
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|
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private: |
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// File system session which is used to make all requests to file server |
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RFs iFs; |
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333 |
|
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// An array of |
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RPointerArray<CSisRegistryToken> iTokens; |
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336 |
|
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// Subsession id reference counter for currently open subsessions |
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// it starts from 1 and increments with every subsession Open request |
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// the counter rolls over when it reaches max value. It is assumed that |
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// this method reallistically would not suffer from id clash |
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static TUint iSubsessionId; |
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|
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// files corresponding to subsessions |
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// array of pointers to curenltly open registry objects |
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// the array index does not bear any relation to the id reference counter |
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RPointerArray<CSisRegistryFile> iFiles; |
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|
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// internal (sisregistryserver specific) object used to maintain the registry integrity |
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CIntegrityServices* iIntegrityService; |
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|
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// Bitmap members which store currently present drives, one for all drives and one for |
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// permanent(fixed) drives. |
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TUint iPermDrives; // stores just the fixed drives |
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|
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// Backup file |
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HBufC* iBackupFile; |
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|
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// The registry is stored on the system drive |
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TDriveNumber iSystemDrive; |
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|
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// ETrue if integrity services is needed for registry consistency |
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TBool iUseIntegServices; |
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|
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//inner class of CSisRegistryCache |
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class CSisLangChangeMonitor; |
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|
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// Active Object used for language change monitoring. |
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CSisLangChangeMonitor* iSisRegLangMonitor; |
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|
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TBool isFwUpdated; |
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private: |
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friend class CSisLangChangeMonitor; |
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|
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public: |
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/** |
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* Adds an entry to SWI Log for aObject. |
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* |
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* @param aObject CSisRegistryObject |
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* @param Installinfo descriptor containing installation type |
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*/ |
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|
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void AddLogEntryL(const CSisRegistryObject& aObject, TSwiLogTypes aInstallinfo); |
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|
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}; |
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385 |
|
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inline TUint CSisRegistryCache::FixedDrives() const |
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{ |
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return iPermDrives; |
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} |
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390 |
|
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inline TUint CSisRegistryCache::AllocateSubsessionId() |
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392 |
{ |
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return (iSubsessionId < 0xFFFFFFFF)?(++iSubsessionId):(iSubsessionId = 1); |
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} |
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inline TBool CSisRegistryCache::UseIntegrityServices() const |
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396 |
{ |
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return iUseIntegServices; |
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} |
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399 |
|
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} //namespace |
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401 |
|
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#endif //__SISREGISTRYCACHE_H__ |