Add lld-parking-lot module: thread-safe parking lot with Strategy, Observer and CAS-based spot claiming, 10 tests incl. 64-thread race

2026-10-22 08:01:55 +00:00
parent d4b3a63615
commit a5fbf45971
24 changed files with 670 additions and 1 deletions
@@ -0,0 +1,16 @@
+== 1. entering and leaving ==
+   board: {SMALL=1, MEDIUM=2, LARGE=1}
+   board: {SMALL=1, MEDIUM=1, LARGE=1}
+   board: {SMALL=1, MEDIUM=1, LARGE=0}
+bike  -> F0-1, car -> F0-2, truck -> F0-3
+   board: {SMALL=1, MEDIUM=2, LARGE=0}
+car stayed 130 min, fee = 60
+
+== 2. failures ==
+second MH03-TRK : MH03-TRK is already inside the lot
+another truck  : no free spot for TRUCK MH04-TRK
+reused ticket  : unknown or already used ticket T-2
+
+== 3. the strategy decides where the motorcycle goes ==
+NearestFirstStrategy puts a motorcycle in F0-1
+BestFitStrategy puts a motorcycle in F1-1
@@ -0,0 +1,11 @@
+PASS truckIsRejectedWhenOnlyMediumSpotsAreFree
+PASS listenersSeeEveryChange
+PASS samePlateCannotBeInsideTwice
+PASS bestFitKeepsLargeSpotsFreeForTrucks
+PASS concurrentDuplicatePlateAdmitsExactlyOne
+PASS failedParkDoesNotLeaveThePlateReserved
+PASS nearestFirstTakesTheFirstFreeSpotThatFits
+PASS feeRoundsPartialHoursUpAndHasAGracePeriod
+PASS concurrentParkingNeverDoubleBooksASpot
+PASS exitFreesTheSpotAndTheTicketIsSingleUse
+10 tests, 0 failures