| 1 | # SPDX-License-Identifier: Apache-2.0 |
| 2 | # SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 3 | |
| 4 | import abc |
| 5 | from dataclasses import dataclass |
| 6 | |
| 7 | import torch |
| 8 | |
| 9 | |
| 10 | @dataclass(frozen=True) |
| 11 | class RecoverSSMPostprocessMetadata: |
| 12 | """Metadata used during postprocessing for align-mode prefix caching.""" |
| 13 | |
| 14 | num_spec_decodes: int |
| 15 | request_indices: torch.Tensor | None |
| 16 | block_table: torch.Tensor |
| 17 | num_computed_tokens: torch.Tensor |
| 18 | block_size: int |
| 19 | |
| 20 | |
| 21 | class RecoverSSMMetadata(abc.ABC): |
| 22 | @abc.abstractmethod |
| 23 | def commit_recoverssm_state( |
| 24 | self, num_accepted_tokens: torch.Tensor |
| 25 | ) -> RecoverSSMPostprocessMetadata | None: |
| 26 | raise NotImplementedError |