TEST(pthread, pthread_no_op_detach_after_join) {
SpinFunctionHelper spinhelper;
pthread_t t1;
ASSERT_EQ(0, pthread_create(&t1, NULL, spinhelper.GetFunction(), NULL));
// If thread 2 is already waiting to join thread 1...
pthread_t t2;
ASSERT_EQ(0, pthread_create(&t2, NULL, JoinFn, reinterpret_cast<void*>(t1)));
sleep(1); // (Give t2 a chance to call pthread_join.)
#if defined(__BIONIC__)
ASSERT_EQ(EINVAL, pthread_detach(t1));
#else
ASSERT_EQ(0, pthread_detach(t1));
#endif
AssertDetached(t1, false);
spinhelper.UnSpin();
// ...but t2's join on t1 still goes ahead (which we can tell because our join on t2 finishes).
void* join_result;
ASSERT_EQ(0, pthread_join(t2, &join_result));
ASSERT_EQ(0U, reinterpret_cast<uintptr_t>(join_result));
}
TEST(pthread, pthread_no_join_after_detach) {
pthread_t t1;
ASSERT_EQ(0, pthread_create(&t1, NULL, SleepFn, reinterpret_cast<void*>(5)));
// After a pthread_detach...
ASSERT_EQ(0, pthread_detach(t1));
AssertDetached(t1, true);
// ...pthread_join should fail.
ASSERT_EQ(EINVAL, pthread_join(t1, NULL));
}
TEST(pthread, pthread_no_join_after_detach) {
SpinFunctionHelper spinhelper;
pthread_t t1;
ASSERT_EQ(0, pthread_create(&t1, NULL, spinhelper.GetFunction(), NULL));
// After a pthread_detach...
ASSERT_EQ(0, pthread_detach(t1));
AssertDetached(t1, true);
// ...pthread_join should fail.
ASSERT_EQ(EINVAL, pthread_join(t1, NULL));
}
TEST(pthread, pthread_no_op_detach_after_join) {
bool done = false;
pthread_t t1;
ASSERT_EQ(0, pthread_create(&t1, NULL, SpinFn, &done));
// If thread 2 is already waiting to join thread 1...
pthread_t t2;
ASSERT_EQ(0, pthread_create(&t2, NULL, JoinFn, reinterpret_cast<void*>(t1)));
sleep(1); // (Give t2 a chance to call pthread_join.)
// ...a call to pthread_detach on thread 1 will "succeed" (silently fail)...
ASSERT_EQ(0, pthread_detach(t1));
AssertDetached(t1, false);
done = true;
// ...but t2's join on t1 still goes ahead (which we can tell because our join on t2 finishes).
void* join_result;
ASSERT_EQ(0, pthread_join(t2, &join_result));
ASSERT_EQ(0U, reinterpret_cast<uintptr_t>(join_result));
}