Flush data, write .sigmf-meta, close file. Returns ``(meta_path, data_path)`` on success, *None* if never opened or already aborted before any data was written.
(self)
| 146 | return True |
| 147 | |
| 148 | def close(self) -> tuple[Path, Path] | None: |
| 149 | """Flush data, write .sigmf-meta, close file. |
| 150 | |
| 151 | Returns ``(meta_path, data_path)`` on success, *None* if never |
| 152 | opened or already aborted before any data was written. |
| 153 | """ |
| 154 | if self._data_file is not None: |
| 155 | try: |
| 156 | self._data_file.flush() |
| 157 | self._data_file.close() |
| 158 | except Exception: |
| 159 | pass |
| 160 | self._data_file = None |
| 161 | |
| 162 | if self._data_path is None or self._meta_path is None: |
| 163 | return None |
| 164 | if self._bytes_written == 0 and not self._aborted: |
| 165 | # Nothing written — clean up empty file |
| 166 | self._data_path.unlink(missing_ok=True) |
| 167 | return None |
| 168 | |
| 169 | try: |
| 170 | meta_dict = self._metadata.to_dict() |
| 171 | self._meta_path.write_text( |
| 172 | json.dumps(meta_dict, indent=2), encoding='utf-8' |
| 173 | ) |
| 174 | except Exception as e: |
| 175 | logger.error(f"Failed to write SigMF metadata: {e}") |
| 176 | |
| 177 | logger.info( |
| 178 | f"SigMFWriter closed: {self._bytes_written} bytes → {self._data_path}" |
| 179 | ) |
| 180 | return self._meta_path, self._data_path |
| 181 | |
| 182 | @property |
| 183 | def bytes_written(self) -> int: |