Method CudaBufferReader

cpp/src/arrow/gpu/cuda_memory.cc:221–229

// CudaBufferReader

CudaBufferReader::CudaBufferReader(const std::shared_ptr<Buffer>& buffer)
    : address_(buffer->address()), size_(buffer->size()), position_(0), is_open_(true) {
  auto maybe_buffer = CudaBuffer::FromBuffer(buffer);
  if (ARROW_PREDICT_FALSE(!maybe_buffer.ok())) {
    throw std::bad_cast();
  }
  buffer_ = *std::move(maybe_buffer);
  context_ = buffer_->context();
}

Status CudaBufferReader::DoClose() {
  is_open_ = false;