Method memory_manager

cpp/src/arrow/gpu/cuda_context.cc:742–744

std::shared_ptr<CudaDevice> CudaContext::device() const { return impl_->device(); }

std::shared_ptr<CudaMemoryManager> CudaContext::memory_manager() const {
  return impl_->memory_manager();
}

int CudaContext::device_number() const { return impl_->device()->device_number(); }