Continuously provides changes (until dispose() is called). Changes provided are tuples with the Change enum and filesystem path. :rtype: Iterable[Tuple[Change, str]]
(self)
| 279 | self._path_watchers = path_watchers |
| 280 | |
| 281 | def iter_changes(self): |
| 282 | """ |
| 283 | Continuously provides changes (until dispose() is called). |
| 284 | |
| 285 | Changes provided are tuples with the Change enum and filesystem path. |
| 286 | |
| 287 | :rtype: Iterable[Tuple[Change, str]] |
| 288 | """ |
| 289 | while not self._disposed.is_set(): |
| 290 | initial_time = time.time() |
| 291 | |
| 292 | old_visit_info = self._single_visit_info |
| 293 | old_file_to_mtime = old_visit_info.file_to_mtime |
| 294 | changes = [] |
| 295 | append_change = changes.append |
| 296 | |
| 297 | self._single_visit_info = single_visit_info = _SingleVisitInfo() |
| 298 | for path_watcher in self._path_watchers: |
| 299 | path_watcher._check(single_visit_info, append_change, old_file_to_mtime) |
| 300 | |
| 301 | # Note that we pop entries while visiting, so, what remained is what's deleted. |
| 302 | for entry in old_file_to_mtime: |
| 303 | append_change((Change.deleted, entry)) |
| 304 | |
| 305 | for change in changes: |
| 306 | yield change |
| 307 | |
| 308 | actual_time = time.time() - initial_time |
| 309 | if self.print_poll_time: |
| 310 | print("--- Total poll time: %.3fs" % actual_time) |
| 311 | |
| 312 | if actual_time > 0: |
| 313 | if self.target_time_for_single_scan <= 0.0: |
| 314 | for path_watcher in self._path_watchers: |
| 315 | path_watcher.sleep_time = 0.0 |
| 316 | else: |
| 317 | perc = self.target_time_for_single_scan / actual_time |
| 318 | |
| 319 | # Prevent from changing the values too much (go slowly into the right |
| 320 | # direction). |
| 321 | # (to prevent from cases where the user puts the machine on sleep and |
| 322 | # values become too skewed). |
| 323 | if perc > 2.0: |
| 324 | perc = 2.0 |
| 325 | elif perc < 0.5: |
| 326 | perc = 0.5 |
| 327 | |
| 328 | for path_watcher in self._path_watchers: |
| 329 | if path_watcher.sleep_time <= 0.0: |
| 330 | path_watcher.sleep_time = 0.001 |
| 331 | new_sleep_time = path_watcher.sleep_time * perc |
| 332 | |
| 333 | # Prevent from changing the values too much (go slowly into the right |
| 334 | # direction). |
| 335 | # (to prevent from cases where the user puts the machine on sleep and |
| 336 | # values become too skewed). |
| 337 | diff_sleep_time = new_sleep_time - path_watcher.sleep_time |
| 338 | path_watcher.sleep_time += diff_sleep_time / (3.0 * len(self._path_watchers)) |
no test coverage detected