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Classes | |
interface | HistoryBlob |
Base class for general text storage via the "object" flag in old_flags, or two-part external storage URLs. More... | |
class | ConcatenatedGzipHistoryBlob |
Concatenated gzip (CGZ) storage Improves compression ratio by concatenating like objects before gzipping. More... | |
class | HistoryBlobStub |
Pointer object for an item within a CGZ blob stored in the text table. More... | |
class | HistoryBlobCurStub |
To speed up conversion from 1.4 to 1.5 schema, text rows can refer to the leftover cur table as the backend. More... | |
class | DiffHistoryBlob |
Diff-based history compression Requires xdiff 1.5+ and zlib. More... | |
Variables | |
global | $wgBlobCache = array() |
One-step cache variable to hold base blobs; operations that pull multiple revisions may often pull multiple times from the same blob. |
$wgBlobCache = array() |
One-step cache variable to hold base blobs; operations that pull multiple revisions may often pull multiple times from the same blob.
By keeping the last-used one open, we avoid redundant unserialization and decompression overhead.
Definition at line 141 of file HistoryBlob.php.
Referenced by HistoryBlobStub::getText().