Class DetachedBuffer

native/thirdpart/flatbuffers/flatbuffers.h:747–866

DetachedBuffer is a finished flatbuffer memory region, detached from its builder. The original memory region and allocator are also stored so that the DetachedBuffer can manage the memory lifetime.

// builder. The original memory region and allocator are also stored so that
// the DetachedBuffer can manage the memory lifetime.
class DetachedBuffer {
 public:
  DetachedBuffer()
      : allocator_(nullptr),
        own_allocator_(false),
        buf_(nullptr),
        reserved_(0),
        cur_(nullptr),
        size_(0) {}

  DetachedBuffer(Allocator *allocator, bool own_allocator, uint8_t *buf,
                 size_t reserved, uint8_t *cur, size_t sz)
      : allocator_(allocator),
        own_allocator_(own_allocator),
        buf_(buf),
        reserved_(reserved),
        cur_(cur),
        size_(sz) {}

  // clang-format off
  #if !defined(FLATBUFFERS_CPP98_STL)
  // clang-format on
  DetachedBuffer(DetachedBuffer &&other)
      : allocator_(other.allocator_),
        own_allocator_(other.own_allocator_),
        buf_(other.buf_),
        reserved_(other.reserved_),
        cur_(other.cur_),
        size_(other.size_) {
    other.reset();
  }
  // clang-format off
  #endif  // !defined(FLATBUFFERS_CPP98_STL)
  // clang-format on

  // clang-format off
  #if !defined(FLATBUFFERS_CPP98_STL)
  // clang-format on
  DetachedBuffer &operator=(DetachedBuffer &&other) {
    if (this == &other) return *this;

    destroy();

    allocator_ = other.allocator_;
    own_allocator_ = other.own_allocator_;
    buf_ = other.buf_;
    reserved_ = other.reserved_;
    cur_ = other.cur_;
    size_ = other.size_;

    other.reset();

    return *this;
  }
  // clang-format off
  #endif  // !defined(FLATBUFFERS_CPP98_STL)
  // clang-format on