SM_TIMER_LOCK
tdsmSingleThreadedEnter(smRoot, SM_TIMER_LOCK);
tdsmSingleThreadedLeave(smRoot, SM_TIMER_LOCK);
tdsmSingleThreadedEnter(smRoot, SM_TIMER_LOCK);
tdsmSingleThreadedLeave(smRoot, SM_TIMER_LOCK);
tdsmSingleThreadedEnter(smRoot, SM_TIMER_LOCK);
tdsmSingleThreadedLeave(smRoot, SM_TIMER_LOCK);
tdsmSingleThreadedEnter(smRoot, SM_TIMER_LOCK);
tdsmSingleThreadedLeave(smRoot, SM_TIMER_LOCK);