Fennel: MockSegPageEntryIterSource Class Reference (original) (raw)
Retrieves the next pageId to be pre-fetched, also filling in context- specific information associated with the page.
Parameters:
| [in,out] | entry | the context-specific information to be filled in |
|---|---|---|
| [out] | found | true if a pageId has been found and should be added to the pre-fetch queue |
Returns:
the prefetch pageId
Implements SegPageEntryIterSource< int >.
Definition at line 44 of file MockSegPageEntryIterSource.cpp.
References counter, nextPageId, NULL_PAGE_ID, SegmentAccessor::pSegment, and segmentAccessor.
00047 { 00048 found = true; 00049 entry = counter++; 00050 // Only need to figure out the next page on every other iteration 00051 if (counter % 2) { 00052 return nextPageId; 00053 } 00054 PageId currPageId = nextPageId; 00055 nextPageId = segmentAccessor.pSegment->getPageSuccessor(nextPageId); 00056 if (nextPageId != NULL_PAGE_ID) { 00057 nextPageId = segmentAccessor.pSegment->getPageSuccessor(nextPageId); 00058 } 00059 return currPageId; 00060 }