commit 8f43b8fb477e0fe538336fd0e1cb772d1686fb47 Author: teor teor@torproject.org Date: Sat Oct 6 16:05:04 2018 -0500

Avoid a race condition in test_rebind.py

If tor terminates due to SIGNAL HALT before test_rebind.py calls tor_process.terminate(), an OSError 3 (no such process) is thrown.

Fixes part of bug 27968 on 0.3.5.1-alpha. --- changes/bug27968 | 3 +++ src/test/test_rebind.py | 13 +++++++++++-- 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/changes/bug27968 b/changes/bug27968 new file mode 100644 index 000000000..78c8eee33 --- /dev/null +++ b/changes/bug27968 @@ -0,0 +1,3 @@ + o Minor bugfixes (testing): + - Avoid hangs and race conditions in test_rebind.py. + Fixes bug 27968; bugfix on 0.3.5.1-alpha. diff --git a/src/test/test_rebind.py b/src/test/test_rebind.py index 7ba3a5796..13e4446ce 100644 --- a/src/test/test_rebind.py +++ b/src/test/test_rebind.py @@ -6,6 +6,7 @@ import socket import os import time import random +import errno

def try_connecting_to_socksport(): socks_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) @@ -88,6 +89,14 @@ try_connecting_to_socksport()

control_socket.sendall('SIGNAL HALT\r\n'.encode('utf8'))

-time.sleep(0.1) +wait_for_log('exiting cleanly') print('OK') -tor_process.terminate() + +try: + tor_process.terminate() +except OSError as e: + if e.errno == errno.ESRCH: # errno 3: No such process + # assume tor has already exited due to SIGNAL HALT + print("Tor has already exited") + else: + raise