bool RangeDeleter::addToBlackList(const StringData& ns,
const BSONObj& min,
const BSONObj& max,
std::string* errMsg) {
string dummy;
if (errMsg == NULL) errMsg = &dummy;
scoped_lock sl(_queueMutex);
if (isBlacklisted_inlock(ns, min, max, errMsg)) {
return false;
}
for (NSMinMaxSet::const_iterator iter = _deleteSet.begin();
iter != _deleteSet.end(); ++iter) {
const NSMinMax* const entry = *iter;
if (entry->ns == ns && rangeOverlaps(entry->min, entry->max, min, max)) {
*errMsg = stream() << "Cannot black list ns: " << ns
<< ", min: " << min
<< ", max: " << max
<< " since it is already queued for deletion.";
return false;
}
}
_blackList.insert(new NSMinMax(ns.toString(), min, max));
return true;
}
bool RangeDeleter::canEnqueue_inlock(const StringData& ns,
const BSONObj& min,
const BSONObj& max,
string* errMsg) const {
if (isBlacklisted_inlock(ns, min, max, errMsg)) {
return false;
}
NSMinMax toDelete(ns.toString(), min, max);
if (_deleteSet.count(&toDelete) > 0) {
*errMsg = str::stream() << "ns: " << ns << ", min: " << min << ", max: " << max
<< " is already being processed for deletion.";
return false;
}
return true;
}
