def _parent_process(child_pipe):
"""Simulate starting an AsyncProcess and then dying.
The child_alive pipe is held open for as long as the child is alive, and can
be used to determine if it exited correctly."""
async def parent_process_coroutine():
worker_ready = mp_context.Event()
worker = AsyncProcess(target=_worker_process,
args=(worker_ready, child_pipe))
await worker.start()
# Wait for the child process to have started.
worker_ready.wait()
# Exit immediately, without doing any process teardown (including atexit
# and 'finally:' blocks) as if by SIGKILL. This should cause
# worker_process to also exit.
os._exit(255)
with pristine_loop() as loop:
try:
loop.run_sync(parent_process_coroutine, timeout=10)
finally:
loop.stop()
raise RuntimeError("this should be unreachable due to os._exit")
def _parent_process(child_pipe):
""" Simulate starting an AsyncProcess and then dying.
The child_alive pipe is held open for as long as the child is alive, and can
be used to determine if it exited correctly. """
def parent_process_coroutine():
worker_ready = mp_context.Event()
worker = AsyncProcess(target=_worker_process,
args=(worker_ready, child_pipe))
yield worker.start()
# Wait for the child process to have started.
worker_ready.wait()
# Exit immediately, without doing any process teardown (including atexit
# and 'finally:' blocks) as if by SIGKILL. This should cause
# worker_process to also exit.
os._exit(255)
with pristine_loop() as loop:
try:
loop.run_sync(gen.coroutine(parent_process_coroutine), timeout=10)
finally:
loop.stop()
raise RuntimeError("this should be unreachable due to os._exit")
