434             auto& ts = mThreadState;  in destroy()  local
435             if (!find_arena(rnd.get() % maxArenas, [&ts](ArenaPtrRWMutex& arena, std::size_t idx) {  in destroy()
436                     if (!ts.lockedArenas[idx]) {  in destroy()
475             auto& ts = mThreadState;  in acquire()  local
477                 [&ts, &lock, &resIdx](ArenaPtrRWMutex& arena, std::size_t idx) -> tbb::task_arena* {  in acquire()
478                     if (!ts.lockedArenas[idx]) {  in acquire()
480                             ts.lockedArenas[idx] = true;  in acquire()
481                             ts.arenaIdxStack[ts.level++] = int(idx);  in acquire()
496         auto& ts = mThreadState;  in release()  local
497         CHECK_FAST(ts.level > 0);  in release()
498         auto idx = ts.arenaIdxStack[--ts.level];  in release()
499         CHECK_FAST(ts.lockedArenas[idx]);  in release()
500         ts.lockedArenas[idx] = false;  in release()