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Classes | |
| struct | VersionedPageEntry |
| Allocation status for a single data page in this extent. More... | |
| struct | ModifiedPageEntry |
| ModifiedPageEntry is a structure that keeps track of the number of updates made to the page entry and extent entry corresponding to a page. More... | |
| class | VersionedRandomAllocationSegment |
| VersionedRandomAllocationSegment refines RandomAllocationSegmentBase, defining a VersionedExtentAllocationNode where each page entry within the segment is versioned. More... | |
Typedefs | |
| typedef boost::shared_ptr< ModifiedAllocationNode > | SharedModifiedAllocationNode |
| typedef boost::shared_ptr< ModifiedPageEntry > | SharedModifiedPageEntry |
| typedef std::hash_map< PageId, SharedModifiedPageEntry > | ModifiedPageEntryMap |
| typedef ModifiedPageEntryMap::const_iterator | ModifiedPageEntryMapIter |
Variables | |
| static const PageOwnerId | UNCOMMITTED_PAGE_OWNER_ID = PageOwnerId(1) |
| Symbolic value for the owner of an uncommitted page. | |
| static const uint64_t | DEALLOCATED_PAGE_OWNER_ID_MASK = 0x8000000000000000LL |
| Deallocation-deferred pages are indicated as such by setting the high order bit in the pageOwnerId in the page entry, and storing the id of the txn that deallocated the page in the remaining bits. | |
| typedef std::hash_map<PageId, SharedModifiedPageEntry> ModifiedPageEntryMap |
Definition at line 102 of file VersionedRandomAllocationSegment.h.
| typedef ModifiedPageEntryMap::const_iterator ModifiedPageEntryMapIter |
Definition at line 103 of file VersionedRandomAllocationSegment.h.
| typedef boost::shared_ptr<ModifiedAllocationNode> SharedModifiedAllocationNode |
Definition at line 38 of file VersionedRandomAllocationSegment.h.
| typedef boost::shared_ptr<ModifiedPageEntry> SharedModifiedPageEntry |
Definition at line 99 of file VersionedRandomAllocationSegment.h.
const uint64_t DEALLOCATED_PAGE_OWNER_ID_MASK = 0x8000000000000000LL [static] |
Deallocation-deferred pages are indicated as such by setting the high order bit in the pageOwnerId in the page entry, and storing the id of the txn that deallocated the page in the remaining bits.
This mask is used to set and turn off the high order bit.
Definition at line 116 of file VersionedRandomAllocationSegment.h.
Referenced by VersionedRandomAllocationSegment::getDeallocatedTxnId(), VersionedRandomAllocationSegment::isDeallocatedPageOwnerId(), and VersionedRandomAllocationSegment::makeDeallocatedPageOwnerId().
const PageOwnerId UNCOMMITTED_PAGE_OWNER_ID = PageOwnerId(1) [static] |
Symbolic value for the owner of an uncommitted page.
Definition at line 108 of file VersionedRandomAllocationSegment.h.
Referenced by SnapshotRandomAllocationSegment::allocatePageId(), VersionedRandomAllocationSegment::copyPageEntryFromTemp(), VersionedRandomAllocationSegment::getOldestTxnId(), and SnapshotRandomAllocationSegment::getSnapshotId().
1.5.1