NewFilePageStorage creates a new instance with path to the file, it defines the page size to pre-allocate the page buffer.

NewPagePool creates a new instance.

FilePageStorage receives requests to Load or Store pages identified by an ID.

MemoryPageStore stores pages in-memory only, its use is mainly for testing.

PagePool maintains memory pages and handles their evictions, persistence and loadings.

Page is an interface for a page that can be converted to/from bytes usually to be persisted.

PageStorage is an interface to be implemented to persistent pages.