| 8786 | |
| 8787 | # Fast Binary Encoding StructBytes model |
| 8788 | class StructBytesModel(fbe.Model): |
| 8789 | __slots__ = "_model", |
| 8790 | |
| 8791 | def __init__(self, buffer=None): |
| 8792 | super().__init__(buffer) |
| 8793 | self._model = FieldModelStructBytes(self.buffer, 4) |
| 8794 | |
| 8795 | @property |
| 8796 | def model(self): |
| 8797 | return self._model |
| 8798 | |
| 8799 | # Get the model size |
| 8800 | @property |
| 8801 | def fbe_size(self): |
| 8802 | return self._model.fbe_size + self._model.fbe_extra |
| 8803 | |
| 8804 | # Get the model type |
| 8805 | @property |
| 8806 | def fbe_type(self): |
| 8807 | return self.TYPE |
| 8808 | |
| 8809 | TYPE = FieldModelStructBytes.TYPE |
| 8810 | |
| 8811 | # Check if the struct value is valid |
| 8812 | def verify(self): |
| 8813 | if (self.buffer.offset + self._model.fbe_offset - 4) > self.buffer.size: |
| 8814 | return False |
| 8815 | |
| 8816 | fbe_full_size = self.read_uint32(self._model.fbe_offset - 4) |
| 8817 | if fbe_full_size < self._model.fbe_size: |
| 8818 | return False |
| 8819 | |
| 8820 | return self._model.verify() |
| 8821 | |
| 8822 | # Create a new model (begin phase) |
| 8823 | def create_begin(self): |
| 8824 | fbe_begin = self.buffer.allocate(4 + self._model.fbe_size) |
| 8825 | return fbe_begin |
| 8826 | |
| 8827 | # Create a new model (end phase) |
| 8828 | def create_end(self, fbe_begin): |
| 8829 | fbe_end = self.buffer.size |
| 8830 | fbe_full_size = fbe_end - fbe_begin |
| 8831 | self.write_uint32(self._model.fbe_offset - 4, fbe_full_size) |
| 8832 | return fbe_full_size |
| 8833 | |
| 8834 | # Serialize the struct value |
| 8835 | def serialize(self, value): |
| 8836 | fbe_begin = self.create_begin() |
| 8837 | self._model.set(value) |
| 8838 | fbe_full_size = self.create_end(fbe_begin) |
| 8839 | return fbe_full_size |
| 8840 | |
| 8841 | # Deserialize the struct value |
| 8842 | def deserialize(self, value=None): |
| 8843 | if value is None: |
| 8844 | value = StructBytes() |
| 8845 | |