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CPageCache Class Reference

class CPageCache : public CBase

Provides a cache for page pools.

Persistent page pools rely on a cache to provide in-memory space for their pages and to cache frequently accessed pages.

Inherits from

CPageCache
- CBase

Public Member Functions
	CPageCache ()
	~CPageCache ()
IMPORT_C void	ConstructL ( TInt )
IMPORT_C CPageCache *	NewL ( TInt )
IMPORT_C CPageCache *	NewLC ( TInt )

Private Member Functions
TCachePage *	Find ( TCachePagePool *, TPageRef )

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Private Attributes
SCachePage *	iEnd
TDblQue < TCachePage >	iFree
SCachePage *	iPages

Constructor & Destructor Documentation

CPageCache()

IMPORT_C

CPageCache

(

)

Default constructor.

~CPageCache()

IMPORT_C

~CPageCache

(

)

Destructor.

All cache pages are deleted.

Member Functions Documentation

ConstructL(TInt)

IMPORT_C void

ConstructL

(

TInt

aPages = EDefaultPages

)

Second phase construction.

Parameters

TInt aPages = EDefaultPages

Number of pages in the cache

Find(TCachePagePool *, TPageRef)

TCachePage *	Find	(	TCachePagePool *	aPool,
			TPageRef	aRef
		)	[private]

Parameters

TCachePagePool * aPool
TPageRef aRef

NewL(TInt)

IMPORT_C CPageCache *

NewL

(

TInt

aPages = EDefaultPages

)

[static]

Allocates and constructs a new page cache.

Parameters

TInt aPages = EDefaultPages

Number of pages in the cache

NewLC(TInt)

IMPORT_C CPageCache *

NewLC

(

TInt

aPages = EDefaultPages

)

[static]

Allocates and constructs a new page cache, and leaves it on the cleanup stack.

Parameters

TInt aPages = EDefaultPages

Number of pages in the cache

Member Data Documentation

SCachePage * iEnd

SCachePage *

iEnd

[private]

TDblQue< TCachePage > iFree

TDblQue < TCachePage >

iFree

[private]

SCachePage * iPages

SCachePage *

iPages

[private]