// LIVE -> DEINITING -> DEINITED -> FREED -> DEAD, with side table
TEST(LongRefcountingTest, lifecycle_live_deiniting_deinited_freed_with_side_DeathTest) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
size_t deinited = 0;
auto object = allocTestObject(&deinited, 1);
object->CheckLifecycle = true;
// Object is LIVE
EXPECT_ALLOCATED(object);
// RC tested elsewhere
// URC load OK
// URC increment OK
// URC decrement OK
swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
// Remaining releases are performed during DEINITED.
// WRC load can't happen
// WRC increment adds side table
// WRC decrement can't happen
WeakReference w;
swift_weakInit(&w, object);
// Object is LIVE with side table
void *side = w.getSideTable();
EXPECT_ALLOCATED(side);
WeakReference w_deinit;
swift_weakInit(&w_deinit, object);
object->WeakRef = &w_deinit;
// destroyed during deinit
// RC increment ok
// RC decrement ok
swift_retain(object);
swift_retain(object);
swift_retain(object);
swift_release(object);
swift_release(object);
swift_release(object);
// URC load OK
// URC increment OK
// URC decrement OK
swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
// WRC load OK
// WRC increment OK
// WRC decrement OK
WeakReference w2;
swift_weakInit(&w2, object);
HeapObject *weakValue = swift_weakLoadStrong(&w2);
EXPECT_EQ(weakValue, object);
swift_release(weakValue);
weakValue = swift_weakLoadStrong(&w);
EXPECT_EQ(weakValue, object);
swift_release(weakValue);
// RC == 1
// URC == 3
// WRC == 3
swift_release(object); // DEINITING is in here
// Object is DEINITED
// RC == 0
// URC == 2
// WRC == 3
EXPECT_EQ(1u, deinited);
EXPECT_ALLOCATED(object);
EXPECT_ALLOCATED(side);
// RC can't happen
// WRC load is nil
// WRC increment can't happen
// WRC decrement OK
weakValue = swift_weakTakeStrong(&w2);
EXPECT_EQ(0, weakValue);
// URC load crashes
// URC increment can't happen
// URC decrement OK
ASSERT_DEATH(swift_unownedCheck(object),
"Attempted to read an unowned reference");
swift_unownedRelease(object);
EXPECT_ALLOCATED(object);
EXPECT_ALLOCATED(side);
// RC == 0
// URC == 1
// WRC == 2
swift_unownedRelease(object);
// Object is FREED
// RC == 0
// URC == 0
// WRC == 1
EXPECT_EQ(1u, deinited);
EXPECT_UNALLOCATED(object);
EXPECT_ALLOCATED(side);
// RC can't happen
// URC can't happen
// WRC load is nil
// WRC increment can't happen
// WRC decrement OK
// RC == 0
// URC == 0
// WRC == 1
weakValue = swift_weakTakeStrong(&w);
// Object is DEAD
// RC == 0
// URC == 0
// WRC == 0
EXPECT_UNALLOCATED(side);
EXPECT_EQ(0, weakValue);
}
// LIVE -> DEINITING -> DEAD, with side table
TEST(LongRefcountingTest, lifecycle_live_deiniting_with_side_DeathTest) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
size_t deinited = 0;
auto object = allocTestObject(&deinited, 1);
object->CheckLifecycle = true;
// Object is LIVE
EXPECT_ALLOCATED(object);
// RC tested elsewhere
// URC load OK
// URC increment OK
// URC decrement OK
swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
// Remaining releases are performed after the side table is allocated.
// WRC load can't happen
// WRC increment adds side table
// WRC decrement can't happen
WeakReference w;
swift_weakInit(&w, object);
// Object is LIVE with side table
void *side = w.getSideTable();
EXPECT_ALLOCATED(side);
WeakReference w_deinit;
swift_weakInit(&w_deinit, object);
object->WeakRef = &w_deinit;
// destroyed during deinit
// RC increment ok
// RC decrement ok
swift_retain(object);
swift_retain(object);
swift_retain(object);
swift_release(object);
swift_release(object);
swift_release(object);
// URC load OK
// URC increment OK
// URC decrement OK
swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRetain(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
// ...and balancing from previously...
swift_unownedRelease(object); swift_unownedCheck(object);
swift_unownedRelease(object); swift_unownedCheck(object);
// WRC load OK
// WRC increment OK
// WRC decrement OK
WeakReference w2;
swift_weakInit(&w2, object);
HeapObject *weakValue = swift_weakTakeStrong(&w2);
EXPECT_EQ(weakValue, object);
swift_release(weakValue);
weakValue = swift_weakTakeStrong(&w);
EXPECT_EQ(weakValue, object);
swift_release(weakValue);
// RC == 1
// URC == 1
// WRC == 1
swift_release(object); // DEINITING is in here
// Object is DEAD
// RC == 0
// URC == 0
// WRC == 0
EXPECT_UNALLOCATED(side);
EXPECT_UNALLOCATED(object);
}
