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Diffstat (limited to 'pym/_emerge/__init__.py')
| -rw-r--r-- | pym/_emerge/__init__.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py index f0a0a687c..c5d6c402f 100644 --- a/pym/_emerge/__init__.py +++ b/pym/_emerge/__init__.py @@ -1582,9 +1582,15 @@ class CompositeTask(AsynchronousTask): prev = None while True: task = self._current_task - if task is None or task is prev: + if task is None: # don't wait for the same task more than once break + if task is prev: + # Before the task.wait() method returned, an exit + # listener should have set self._current_task to either + # a different task or None. Something is wrong. + raise AssertionError("self._current_task has not " + \ + "changed since calling wait", self, task) task.wait() prev = task |