void LockerImpl<IsForMMAPV1>::getLockerInfo(LockerInfo* lockerInfo) const {
invariant(lockerInfo);
// Zero-out the contents
lockerInfo->locks.clear();
lockerInfo->waitingResource = ResourceId();
lockerInfo->stats.reset();
_lock.lock();
LockRequestsMap::ConstIterator it = _requests.begin();
while (!it.finished()) {
OneLock info;
info.resourceId = it.key();
info.mode = it->mode;
lockerInfo->locks.push_back(info);
it.next();
}
_lock.unlock();
std::sort(lockerInfo->locks.begin(), lockerInfo->locks.end());
lockerInfo->waitingResource = getWaitingResource();
lockerInfo->stats.append(_stats);
}
void LockerImpl::getLockerInfo(LockerInfo* lockerInfo,
const boost::optional<SingleThreadedLockStats> lockStatsBase) const {
invariant(lockerInfo);
// Zero-out the contents
lockerInfo->locks.clear();
lockerInfo->waitingResource = ResourceId();
lockerInfo->stats.reset();
_lock.lock();
LockRequestsMap::ConstIterator it = _requests.begin();
while (!it.finished()) {
OneLock info;
info.resourceId = it.key();
info.mode = it->mode;
lockerInfo->locks.push_back(info);
it.next();
}
_lock.unlock();
std::sort(lockerInfo->locks.begin(), lockerInfo->locks.end());
lockerInfo->waitingResource = getWaitingResource();
lockerInfo->stats.append(_stats);
// lockStatsBase is a snapshot of lock stats taken when the sub-operation starts. Only
// sub-operations have lockStatsBase.
if (lockStatsBase)
// Adjust the lock stats by subtracting the lockStatsBase. No mutex is needed because
// lockStatsBase is immutable.
lockerInfo->stats.subtract(*lockStatsBase);
}
ResourceId LockerImpl<IsForMMAPV1>::getWaitingResource() const {
scoped_spinlock scopedLock(_lock);
LockRequestsMap::ConstIterator it = _requests.begin();
while (!it.finished()) {
if (it->status == LockRequest::STATUS_WAITING ||
it->status == LockRequest::STATUS_CONVERTING) {
return it.key();
}
it.next();
}
return ResourceId();
}
void LockerImpl<IsForMMAPV1>::dump() const {
StringBuilder ss;
ss << "Locker id " << _id << " status: ";
_lock.lock();
LockRequestsMap::ConstIterator it = _requests.begin();
while (!it.finished()) {
ss << it.key().toString() << " " << lockRequestStatusName(it->status) << " in "
<< modeName(it->mode) << "; ";
it.next();
}
_lock.unlock();
log() << ss.str();
}