/** Flush the target IN. */
private void flushIN(
IN target, LogManager logManager, Map dirtyMap, boolean logProvisionally, boolean allowDeltas)
throws DatabaseException {
DatabaseImpl db = target.getDatabase();
Tree tree = db.getTree();
boolean targetWasRoot = false;
if (target.isDbRoot()) {
/* We're trying to flush the root. */
target.releaseLatch();
RootFlusher flusher = new RootFlusher(db, logManager, target);
tree.withRootLatched(flusher);
boolean flushed = flusher.getFlushed();
/*
* We have to check if the root split between target.releaseLatch
* and the execution of the root flusher. If it did split, this
* target has to get handled like a regular node.
*/
targetWasRoot = flusher.stillRoot();
/*
* Update the tree's owner, whether it's the env root or the
* dbmapping tree.
*/
if (flushed) {
DbTree dbTree = db.getDbEnvironment().getDbMapTree();
dbTree.modifyDbRoot(db);
nFullINFlushThisRun++;
nFullINFlush++;
}
if (!targetWasRoot) {
/*
* re-latch for another attempt, now that this is no longer
* the root.
*/
target.latch();
}
}
if (!targetWasRoot) {
SearchResult result = tree.getParentINForChildIN(target, true);
/*
* Found a parent, do the flush. If no parent found, the
* compressor deleted this item before we got to processing it.
*/
if (result.exactParentFound) {
try {
ChildReference entry = result.parent.getEntry(result.index);
IN renewedTarget = (IN) entry.fetchTarget(db, result.parent);
renewedTarget.latch();
DbLsn newLsn = null;
try {
/* Still dirty? */
if (renewedTarget.getDirty()) {
if (allowDeltas) {
newLsn = renewedTarget.logAllowDeltas(logManager, logProvisionally);
if (newLsn == null) {
nDeltaINFlushThisRun++;
nDeltaINFlush++;
}
} else {
newLsn = renewedTarget.log(logManager, logProvisionally);
}
}
} finally {
renewedTarget.releaseLatch();
}
/* Update parent if logging occurred */
if (newLsn != null) {
nFullINFlushThisRun++;
nFullINFlush++;
if (renewedTarget instanceof BIN) {
nFullBINFlush++;
}
result.parent.updateEntry(result.index, newLsn);
addToDirtyMap(dirtyMap, result.parent);
}
} finally {
result.parent.releaseLatch();
}
}
}
}
