Function testRefcounting

src/iocore/hostdb/test_RefCountCache.cc:131–178

TODO: check that the memory was actually free-d better

// TODO: check that the memory was actually free-d better
int
testRefcounting()
{
  int ret = 0;

  RefCountCache<ExampleStruct> *cache = new RefCountCache<ExampleStruct>(4);

  // Create and then immediately delete an item
  ExampleStruct *to_delete  = ExampleStruct::alloc();
  ret                      |= to_delete->refcount() != 0;
  cache->put(1, to_delete);
  ret |= to_delete->refcount() != 1;
  cache->erase(1);
  ret |= to_delete->refcount() != 0;
  ret |= to_delete->idx != -1;

  // Set an item in the cache
  ExampleStruct *tmp  = ExampleStruct::alloc();
  ret                |= tmp->refcount() != 0;
  printf("ret=%d ref=%d\n", ret, tmp->refcount());
  cache->put(static_cast<uint64_t>(1), tmp);
  ret |= tmp->refcount() != 1;
  printf("ret=%d ref=%d\n", ret, tmp->refcount());
  tmp->idx = 1;

  // Grab a pointer to item 1
  Ptr<ExampleStruct> ccitem  = cache->get(static_cast<uint64_t>(1));
  ret                       |= tmp->refcount() != 2;
  printf("ret=%d ref=%d\n", ret, tmp->refcount());

  Ptr<ExampleStruct> tmpAfter  = cache->get(static_cast<uint64_t>(1));
  ret                         |= tmp->refcount() != 3;
  printf("ret=%d ref=%d\n", ret, tmp->refcount());

  // Delete a single item
  cache->erase(1);
  ret |= tmp->refcount() != 2;
  printf("ret=%d ref=%d\n", ret, tmp->refcount());
  // verify that it still isn't in there
  ret |= cache->get(1).get() != nullptr;
  printf("ret=%d ref=%d\n", ret, tmp->refcount());
  ret |= tmpAfter.get()->idx != 1;
  printf("ret=%d ref=%d\n", ret, tmp->refcount());

  delete cache;

  return ret;
}

int
testclear()