Function do_trywait

test/bthread_semaphore_unittest.cpp:105–109

};

void* do_trywait(void *arg) {
    auto trylock_args = (TryWaitArgs*)arg;
    EXPECT_EQ(trylock_args->rc, bthread_sem_trywait(trylock_args->sem));
    return NULL;
}

TEST(SemaphoreTest, trywait) {
    bthread_sem_t sem;