1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
import os
import sys
import subprocess
def breaknow():
print('break here')
if '--fork-in-subprocess' in sys.argv:
popen = None
if sys.platform == 'win32':
popen = subprocess.Popen([sys.executable, __file__, '--forked'])
pid = popen.pid
else:
pid = os.fork()
try:
ppid = os.getppid()
except:
ppid = '<unknown>'
print('currently in pid: %s, ppid: %s' % (os.getpid(), ppid))
print('os.fork returned', pid)
breaknow()
# i.e.: wait so that we check for the retcode so that we don't get a traceback such as the one
# below (as that code in __del__ will only be called if returncode is None).
# Traceback (most recent call last):
# File "C:\hostedtoolcache\windows\Python\3.9.13\x64\lib\subprocess.py", line 1055, in __del__
# self._internal_poll(_deadstate=_maxsize)
# File "C:\hostedtoolcache\windows\Python\3.9.13\x64\lib\subprocess.py", line 1457, in _internal_poll
# if _WaitForSingleObject(self._handle, 0) == _WAIT_OBJECT_0:
# OSError: [WinError 6] The handle is invalid
if popen is not None:
popen.wait(20)
elif '--forked' in sys.argv:
try:
ppid = os.getppid()
except:
ppid = '<unknown>'
print('currently in pid: %s, ppid: %s' % (os.getpid(), ppid))
breaknow()
elif '--fork-in-subprocess' not in sys.argv:
out = subprocess.check_output([sys.executable, __file__, '--fork-in-subprocess'])
breaknow()
print('\n\nin pid %s, output from subprocess.run:\n%s' % (os.getpid(), out.decode('utf-8')))
print('TEST SUCEEDED!')
|
