| 1396 | |
| 1397 | # Fast Binary Encoding Balance model |
| 1398 | class BalanceModel(fbe.Model): |
| 1399 | __slots__ = "_model", |
| 1400 | |
| 1401 | def __init__(self, buffer=None): |
| 1402 | super().__init__(buffer) |
| 1403 | self._model = FieldModelBalance(self.buffer, 4) |
| 1404 | |
| 1405 | @property |
| 1406 | def model(self): |
| 1407 | return self._model |
| 1408 | |
| 1409 | # Get the model size |
| 1410 | @property |
| 1411 | def fbe_size(self): |
| 1412 | return self._model.fbe_size + self._model.fbe_extra |
| 1413 | |
| 1414 | # Get the model type |
| 1415 | @property |
| 1416 | def fbe_type(self): |
| 1417 | return self.TYPE |
| 1418 | |
| 1419 | TYPE = FieldModelBalance.TYPE |
| 1420 | |
| 1421 | # Check if the struct value is valid |
| 1422 | def verify(self): |
| 1423 | if (self.buffer.offset + self._model.fbe_offset - 4) > self.buffer.size: |
| 1424 | return False |
| 1425 | |
| 1426 | fbe_full_size = self.read_uint32(self._model.fbe_offset - 4) |
| 1427 | if fbe_full_size < self._model.fbe_size: |
| 1428 | return False |
| 1429 | |
| 1430 | return self._model.verify() |
| 1431 | |
| 1432 | # Create a new model (begin phase) |
| 1433 | def create_begin(self): |
| 1434 | fbe_begin = self.buffer.allocate(4 + self._model.fbe_size) |
| 1435 | return fbe_begin |
| 1436 | |
| 1437 | # Create a new model (end phase) |
| 1438 | def create_end(self, fbe_begin): |
| 1439 | fbe_end = self.buffer.size |
| 1440 | fbe_full_size = fbe_end - fbe_begin |
| 1441 | self.write_uint32(self._model.fbe_offset - 4, fbe_full_size) |
| 1442 | return fbe_full_size |
| 1443 | |
| 1444 | # Serialize the struct value |
| 1445 | def serialize(self, value): |
| 1446 | fbe_begin = self.create_begin() |
| 1447 | self._model.set(value) |
| 1448 | fbe_full_size = self.create_end(fbe_begin) |
| 1449 | return fbe_full_size |
| 1450 | |
| 1451 | # Deserialize the struct value |
| 1452 | def deserialize(self, value=None): |
| 1453 | if value is None: |
| 1454 | value = Balance() |
| 1455 | |