mirror of https://github.com/python/cpython
16 lines
757 B
Python
16 lines
757 B
Python
import signal, subprocess, sys, time
|
|
# On Linux this causes os.waitpid to fail with OSError as the OS has already
|
|
# reaped our child process. The wait() passing the OSError on to the caller
|
|
# and causing us to exit with an error is what we are testing against.
|
|
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
|
|
subprocess.Popen([sys.executable, '-c', 'print("albatross")']).wait()
|
|
# Also ensure poll() handles an errno.ECHILD appropriately.
|
|
p = subprocess.Popen([sys.executable, '-c', 'print("albatross")'])
|
|
num_polls = 0
|
|
while p.poll() is None:
|
|
# Waiting for the process to finish.
|
|
time.sleep(0.01) # Avoid being a CPU busy loop.
|
|
num_polls += 1
|
|
if num_polls > 3000:
|
|
raise RuntimeError('poll should have returned 0 within 30 seconds')
|