Class RSecureStorePagePool

RSecureStorePagePool

Support

Supported from 5.0

Description

Uses an encrypted store to implement the page pool interface MPagePool.

A secure store page pool uses a cache to store pages in-memory and to cache frequently accessed pages. You should provide a cache object (CPageCache) to the pool for this purpose.

Derivation

MPagePool Interface to a page pool, the storage abstraction used by the B-trees API RSecureStorePagePool Uses an encrypted store to implement the page pool interface MPagePool RStorePagePool Uses a store to implement the page pool interface MPagePool TCachePagePool Provides a page pool with cached pages

Defined in RSecureStorePagePool:
DoDeleteL(), ExtendL(), RSecureStorePagePool(), ReadL(), WriteL()

Inherited from MPagePool:
Delete(), DeleteL(), Pop(), PushL()

Inherited from RStorePagePool:
Close(), Create(), Discard(), HasAvailable(), IsDirty(), IsEmpty(), MarkCurrent(), MarkDirty(), Open(), ReclaimAllL(), ReclaimL(), Release(), Token()

Inherited from TCachePagePool:
AcquireL(), AllocL(), AssignL(), Flush(), FlushL(), LockL(), Purge(), Set(), Unlock(), UpdateL()

See also:

• CPageCache
• Security

RSecureStorePagePool(const CBoundedSecurityBase& aKey);

Description

Constructor with security model.

Parameters

const CBoundedSecurityBase& aKey Security model to use for the encryption

RSecureStorePagePool(CPageCache& aCache,const CBoundedSecurityBase& aKey);

Description

Constructor with page cache and security model.

Parameters

CPageCache& aCache Page cache const CBoundedSecurityBase& aKey Security model to use for the encryption

protected: void DoDeleteL(TPageRef aRef);

Description

Deletes a specified page.

Parameters

TPageRef aRef Reference to page to delete

protected: TPageRef ExtendL(const TAny* aPage,TPageReclamation aReclamation);

Description

Adds a new page to the pool.

Parameters

const TAny* aPage Data for the page TPageReclamation aReclamation Flags that define how allocated pages can be reclaimed

Return value

TPageRef Reference to newly created page

protected: void ReadL(TPageRef aRef,TAny* aPage);

Description

Reads a specified page from the pool.

Parameters

TPageRef aRef Reference to page to read TAny* aPage On return, the page data

protected: void WriteL(TPageRef aRef,const TAny* aPage,TPageChange aChange);

Description

Writes data to a page in the pool.

Parameters

TPageRef aRef Reference to the page to which to write const TAny* aPage Data to write TPageChange aChange Flags that define how a page should be treated when it is unlocked for writing