diff options
Diffstat (limited to 'Lib/asyncio/unix_events.py')
| -rw-r--r-- | Lib/asyncio/unix_events.py | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py index 97198ea..28fb491 100644 --- a/Lib/asyncio/unix_events.py +++ b/Lib/asyncio/unix_events.py @@ -930,9 +930,20 @@ class PidfdChildWatcher(AbstractChildWatcher): def _do_wait(self, pid): pidfd, callback, args = self._callbacks.pop(pid) self._loop._remove_reader(pidfd) - _, status = os.waitpid(pid, 0) + try: + _, status = os.waitpid(pid, 0) + except ChildProcessError: + # The child process is already reaped + # (may happen if waitpid() is called elsewhere). + returncode = 255 + logger.warning( + "child process pid %d exit status already read: " + " will report returncode 255", + pid) + else: + returncode = _compute_returncode(status) + os.close(pidfd) - returncode = _compute_returncode(status) callback(pid, returncode, *args) def remove_child_handler(self, pid): |