| 35 | pass |
| 36 | |
| 37 | def test_get_referrers(self): |
| 38 | NUM_GC = 2 |
| 39 | NUM_MUTATORS = 4 |
| 40 | |
| 41 | b = threading.Barrier(NUM_GC + NUM_MUTATORS) |
| 42 | event = threading.Event() |
| 43 | |
| 44 | obj = MyObj() |
| 45 | |
| 46 | def gc_thread(): |
| 47 | b.wait() |
| 48 | for i in range(100): |
| 49 | o = gc.get_referrers(obj) |
| 50 | event.set() |
| 51 | |
| 52 | def mutator_thread(): |
| 53 | b.wait() |
| 54 | while not event.is_set(): |
| 55 | d1 = { "key": obj } |
| 56 | d2 = { "key": obj } |
| 57 | d3 = { "key": obj } |
| 58 | d4 = { "key": obj } |
| 59 | |
| 60 | gcs = [Thread(target=gc_thread) for _ in range(NUM_GC)] |
| 61 | mutators = [Thread(target=mutator_thread) for _ in range(NUM_MUTATORS)] |
| 62 | with threading_helper.start_threads(gcs + mutators): |
| 63 | pass |
| 64 | |
| 65 | def test_freeze_object_in_brc_queue(self): |
| 66 | # GH-142975: Freezing objects in the BRC queue could result in some |