nl_tokens: Futexes
pl_tokens: function AtomicsFutexWaitJS ( ia , index , value , timeout ) { CheckSharedInteger32TypedArray ( ia ) ; <mask> = ValidateIndex ( index , % _TypedArrayGetLength ( ia ) ) ; if ( IS_UNDEFINED ( timeout ) ) { timeout = INFINITY ; } else { timeout = TO_NUMBER ( timeout ) ; if ( NUMBER_IS_NAN ( timeout ) ) { timeout = INFINITY ; } else { timeout = MaxSimple ( 0 , timeout ) ; } } return % AtomicsFutexWait ( ia , index , value , timeout ) ; }