Uses a store to implement the page pool interface MPagePool .

Pages can be reclaimable (tracked by the page pool, so that they can be freed when required) or not (in which case they must be deleted explicitly): this is indicated by a flag of type TPageReclamation. Non-reclaimable pages each have their own stream in the store; reclaimable pages are bundled 15 to a stream. To track the reclaimable pages, the page pool has a separate token, type TStorePagePoolToken , that must be saved by the user of the pool.

The store used must support CStreamStore::ExtendL() , CStreamStore::DeleteL() and allow streams to be re-written. CPermanentFileStore meets these conditions.

A 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.

CPageCache CPermanentFileStore CStreamStore TPageReclamation