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"""This test checks that socket instances (not GreenSockets but underlying sockets)
are not leaked by the hub.
"""
import gc
from pprint import pformat
import weakref
from eventlet.support import clear_sys_exc_info
from eventlet.green import socket
from eventlet.green.thread import start_new_thread
from eventlet.green.time import sleep
SOCKET_TIMEOUT = 0.1
def init_server():
s = socket.socket()
s.settimeout(SOCKET_TIMEOUT)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(('localhost', 0))
s.listen(5)
return s, s.getsockname()[1]
def handle_request(s, raise_on_timeout):
try:
conn, address = s.accept()
except socket.timeout:
if raise_on_timeout:
raise
else:
return
# print('handle_request - accepted')
res = conn.recv(100)
assert res == b'hello', repr(res)
# print('handle_request - recvd %r' % res)
res = conn.send(b'bye')
# print('handle_request - sent %r' % res)
# print('handle_request - conn refcount: %s' % sys.getrefcount(conn))
# conn.close()
def make_request(port):
# print('make_request')
s = socket.socket()
s.connect(('localhost', port))
# print('make_request - connected')
res = s.send(b'hello')
# print('make_request - sent %s' % res)
res = s.recv(100)
assert res == b'bye', repr(res)
# print('make_request - recvd %r' % res)
# s.close()
def run_interaction(run_client):
s, port = init_server()
start_new_thread(handle_request, (s, run_client))
if run_client:
start_new_thread(make_request, (port,))
sleep(0.1 + SOCKET_TIMEOUT)
# print(sys.getrefcount(s.fd))
# s.close()
return weakref.ref(s.fd)
def run_and_check(run_client):
w = run_interaction(run_client=run_client)
clear_sys_exc_info()
gc.collect()
if w():
print(pformat(gc.get_referrers(w())))
for x in gc.get_referrers(w()):
print(pformat(x))
for y in gc.get_referrers(x):
print('- {0}'.format(pformat(y)))
raise AssertionError('server should be dead by now')
def test_clean_exit():
run_and_check(True)
run_and_check(True)
def test_timeout_exit():
run_and_check(False)
run_and_check(False)
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