Function DefaultBackend

cpp/src/arrow/memory_pool.cc:138–145

}

MemoryPoolBackend DefaultBackend() {
  auto backend = UserSelectedBackend();
  if (backend.has_value()) {
    return backend.value();
  }
  struct SupportedBackend default_backend = SupportedBackends().front();
  return default_backend.backend;
}

using MemoryDebugHandler = std::function<void(uint8_t* ptr, int64_t size, const Status&)>;