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import os
import signal
import sys
import tempfile
__test__ = False
def parent(signal_path, pid):
eventlet.Timeout(5)
port = None
while True:
try:
contents = open(signal_path, 'rb').read()
port = int(contents.strip())
break
except Exception:
eventlet.sleep(0.1)
eventlet.connect(('127.0.0.1', port))
while True:
try:
contents = open(signal_path, 'rb').read()
result = contents.split()[1]
break
except Exception:
eventlet.sleep(0.1)
assert result == b'done', repr(result)
print('pass')
def child(signal_path):
eventlet.Timeout(5)
s = eventlet.listen(('127.0.0.1', 0))
with open(signal_path, 'wb') as f:
f.write(str(s.getsockname()[1]).encode() + b'\n')
f.flush()
s.accept()
f.write(b'done\n')
f.flush()
if __name__ == '__main__':
import eventlet
with tempfile.NamedTemporaryFile() as signal_file:
signal_path = signal_file.name
pid = os.fork()
if pid < 0:
sys.stderr.write('fork error\n')
sys.exit(1)
elif pid == 0:
child(signal_path)
sys.exit(0)
elif pid > 0:
try:
parent(signal_path, pid)
except Exception:
os.kill(pid, signal.SIGTERM)
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