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Simplified output stream management in ultratb....
Simplified output stream management in ultratb. This lets us have one less hack in the testing globalipapp code, as well as rationalizing the ultratb code a little more. There is now an ostream property for all output that can be used consistently.

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exitpoller.py
41 lines | 1.2 KiB | text/x-python | PythonLexer
import os
import time
from threading import Thread
class ExitPollerUnix(Thread):
""" A Unix-specific daemon thread that terminates the program immediately
when the parent process no longer exists.
"""
def __init__(self):
super(ExitPollerUnix, self).__init__()
self.daemon = True
def run(self):
# We cannot use os.waitpid because it works only for child processes.
from errno import EINTR
while True:
try:
if os.getppid() == 1:
os._exit(1)
time.sleep(1.0)
except OSError, e:
if e.errno == EINTR:
continue
raise
class ExitPollerWindows(Thread):
""" A Windows-specific daemon thread that terminates the program immediately
when a Win32 handle is signaled.
"""
def __init__(self, handle):
super(ExitPollerWindows, self).__init__()
self.daemon = True
self.handle = handle
def run(self):
from _subprocess import WaitForSingleObject, WAIT_OBJECT_0, INFINITE
result = WaitForSingleObject(self.handle, INFINITE)
if result == WAIT_OBJECT_0:
os._exit(1)