LockResult LockerImpl<IsForMMAPV1>::_acquireTicket(OperationContext* opCtx,
LockMode mode,
Date_t deadline) {
const bool reader = isSharedLockMode(mode);
auto holder = shouldAcquireTicket() ? ticketHolders[mode] : nullptr;
if (holder) {
_clientState.store(reader ? kQueuedReader : kQueuedWriter);
// If the ticket wait is interrupted, restore the state of the client.
auto restoreStateOnErrorGuard = MakeGuard([&] { _clientState.store(kInactive); });
if (deadline == Date_t::max()) {
holder->waitForTicket(opCtx);
} else if (!holder->waitForTicketUntil(opCtx, deadline)) {
return LOCK_TIMEOUT;
}
restoreStateOnErrorGuard.Dismiss();
}
_clientState.store(reader ? kActiveReader : kActiveWriter);
return LOCK_OK;
}
LockResult LockerImpl::_acquireTicket(OperationContext* opCtx, LockMode mode, Date_t deadline) {
const bool reader = isSharedLockMode(mode);
auto holder = shouldAcquireTicket() ? ticketHolders[mode] : nullptr;
if (holder) {
_clientState.store(reader ? kQueuedReader : kQueuedWriter);
if (_maxLockTimeout && !_uninterruptibleLocksRequested) {
deadline = std::min(deadline, Date_t::now() + _maxLockTimeout.get());
}
// If the ticket wait is interrupted, restore the state of the client.
auto restoreStateOnErrorGuard = MakeGuard([&] { _clientState.store(kInactive); });
OperationContext* interruptible = _uninterruptibleLocksRequested ? nullptr : opCtx;
if (deadline == Date_t::max()) {
holder->waitForTicket(interruptible);
} else if (!holder->waitForTicketUntil(interruptible, deadline)) {
return LOCK_TIMEOUT;
}
restoreStateOnErrorGuard.Dismiss();
}
_clientState.store(reader ? kActiveReader : kActiveWriter);
return LOCK_OK;
}
