Issue #11185: Fix test_wait4 under AIX. Patch by Sébastien Sablé.
diff --git a/Lib/test/test_wait4.py b/Lib/test/test_wait4.py
index cdcd060..352c11a 100644
--- a/Lib/test/test_wait4.py
+++ b/Lib/test/test_wait4.py
@@ -3,6 +3,7 @@
import os
import time
+import sys
from test.fork_wait import ForkWait
from test.support import run_unittest, reap_children, get_attribute
@@ -13,10 +14,15 @@
class Wait4Test(ForkWait):
def wait_impl(self, cpid):
+ option = os.WNOHANG
+ if sys.platform.startswith('aix'):
+ # Issue #11185: wait4 is broken on AIX and will always return 0
+ # with WNOHANG.
+ option = 0
for i in range(10):
# wait4() shouldn't hang, but some of the buildbots seem to hang
# in the forking tests. This is an attempt to fix the problem.
- spid, status, rusage = os.wait4(cpid, os.WNOHANG)
+ spid, status, rusage = os.wait4(cpid, option)
if spid == cpid:
break
time.sleep(1.0)