úÎ!VZS¤    None $%*79;MNPX_k± timer-wheelTimer wheel config.spokes must be "  (0, maxBound] resolution must " (0, "] timer-wheel Spoke count. timer-wheelResolution, in seconds.None $%*79;MNPX_k G  timer-wheelAn empty collection.  timer-wheel'The number of timers in the collection. timer-wheelinsert i n m x inserts callback m into collection x with unique identifier i and "count" n. The timer-wheelDelete a timer by id. Returns  if the timer was not found. timer-wheelExtract expired timers.  None $%*79;MNPX_k ¤ timer-wheelPrecondition: input is >= 0 None $%*79;MNPX_k gNone $%*79;MNPX_k  !"#$%&None$%*79;MNPX_km Õ'()*+,None$%*79;MNPX_kmSP - timer-wheelThe timeout thread died. timer-wheelTA timer wheel is a vector-of-collections-of timers to fire. It is configured with a  spoke count and  resolution¤. Timers may be scheduled arbitrarily far in the future. A timeout thread is spawned to step through the timer wheel and fire expired timers at regular intervals.The  spoke count) determines the size of the timer vector.A larger spoke count will result in less insert contention" at each spoke and will require  more memory to store the timer wheel.A smaller spoke count will result in more insert contention" at each spoke and will require  less memory to store the timer wheel.The  resolution“ determines both the duration of time that each spoke corresponds to, and how often the timeout thread wakes. For example, with a resolution of 1s, a timer that expires at 2.5s4 will not fire until the timeout thread wakes at 3s.A larger resolution will result in more insert contention at each spoke,  less accurate timers, and will require  fewer wakeups by the timeout thread.A smaller resolution will result in less insert contention at each spoke,  more accurate timers, and will require  more wakeups by the timeout thread.1The timeout thread has some important properties:dThere is only one, and it fires expired timers synchronously. If your timer actions execute quicky, N them directly. Otherwise, consider registering an action that enqueues the real) action to be performed on a job queue.*Synchronous exceptions thrown by enqueued IOõ actions will bring the thread down, and the exception will be propagated to the thread that created the timer wheel. If you want to catch exceptions and log them, for example, you will have to bake this into the registered actions yourself.:As an example, below is a depiction of a timer wheel with 6 timers inserted across 8 spokes, and a resolution of .1s. It depicts a cursor at .3s8, which indicates where the timeout thread currently is. ÿ 0 .1 .2 .3 .4 .5 .6 .7 % %%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%% % % A p % % B¹ C p % D p % % % E² F p % %%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%% !‘ After .1sq, the timeout thread will advance to the next spoke and process all of the timers it passed over. In this case, C will fire, and B0 will be put back with its count decremented to 0». This is how the timer wheel can schedule a timer to fire arbitrarily far in the future: its count is simply the number of times its delay wraps the entire duration of the timer wheel. ÿ& 0 .1 .2 .3 .4 .5 .6 .7 % %%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%%,%%%%%%%% % % A p % % B p % D p % % % E² F p % %%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%%4%%%%%%%% !‘ . timer-wheelA supply of unique ints./ timer-wheel#The array of collections of timers. timer-wheel%Perform an action with a timer wheel.Throws.Calls 0 if the config is invalid4Throws the exception the given action throws, if any:Throws the exception the timer wheel thread throws, if any timer-wheelregister wheel delay action registers an action action in timer wheel wheel to fire after delay seconds.rReturns an action that, when called, attempts to cancel the timer, and returns whether or not it was successful (False> means the timer has already fired, or was already cancelled).Throws.Calls 0, if the given number of seconds is negative. timer-wheelLike 4, but for when you don't intend to cancel the timer.Throws.Calls 0, if the given number of seconds is negative. timer-wheelrecurring wheel action delay registers an action action in timer wheel wheel to fire every delay seconds (or every  resolution seconds, whichever is smaller).AReturns an action that, when called, cancels the recurring timer.Throws.Calls 0, if the given number of seconds is negative.  timer-wheelLike 4, but for when you don't intend to cancel the timer.Throws.Calls 0, if the given number of seconds is negative. timer-wheel timer-wheelDelay, in seconds timer-wheelAction timer-wheel timer-wheelDelay, in seconds timer-wheelAction timer-wheelDelay, in seconds timer-wheelAction  timer-wheelDelay, in seconds timer-wheelAction   1      !"#$%&'(()"*+,- ./0123456(timer-wheel-0.3.0-KdmnLdO6YZvKEzLsG2w3MPData.TimerWheelData.TimerWheel.Internal.Config Data.TimerWheel.Internal.EntriesData.TimerWheel.Internal.MicrosData.TimerWheel.Internal.Supply"Data.TimerWheel.Internal.TimestampData.TimerWheel.Internal.WheelConfigspokes resolution TimerWheelwithregister register_ recurring recurring_$fExceptionTimerWheelDied$fShowTimerWheelDiedemptysizeinsertdeletebase GHC.MaybeNothing partitionEntriesnull fromFixedMicrosunMicros fromSecondsdivminusscalesleepSupplynewnext TimestampepochnowplusremWheelcreate lenMicrosreapTimerWheelDiedsupplywheelGHC.Errerror