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# Copyright (c) 2005-2007 Forest Bond.
# This file is part of the sclapp software package.
#
# sclapp is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License version 2 as published by the Free
# Software Foundation.
#
# A copy of the license has been included in the COPYING file.
import os, sys, signal
from unittest import main
import sclapp
from common import (
logSignals,
SclappTestCase,
waitForPid,
assertSignalCaught,
execHead,
)
from manager import manager
@sclapp.main_function(notify_signals = [signal.SIGHUP, signal.SIGPIPE])
def _main(argv):
import time
sclapp.debug()
try:
for i in range(20):
try:
print 'foo'
print >>sys.stderr, 'bar'
os.kill(os.getpid(), signal.SIGHUP)
except sclapp.SignalError, e:
if e.signum == signal.SIGHUP:
pass
if e.signum == signal.SIGPIPE:
pass
time.sleep(0.5)
finally:
logSignals()
return 0
class SignalsTestCase(SclappTestCase):
@staticmethod
def test_notify_sighup():
from sclapp.debug_logging import DEBUG_LOGFILE
from sclapp import pipes as s_p
pid = os.fork()
if not pid:
s_p.redirectFds(
stdin = '/dev/null', stdout = DEBUG_LOGFILE, stderr = DEBUG_LOGFILE)
_main()
os._exit(0)
waitForPid(pid)
assertSignalCaught(signal.SIGHUP, pid)
@staticmethod
def test_notify_sighup_sigpipe():
from sclapp.debug_logging import DEBUG_LOGFILE
from sclapp import pipes as s_p
fns = [ _main, execHead ]
argses = [ None, [ 2 ] ]
kwargses = [ None, None ]
pid = s_p.pipeFns(fns, argses, kwargses,
stdin = '/dev/null', stdout = DEBUG_LOGFILE, stderr = DEBUG_LOGFILE)
waitForPid(pid)
assertSignalCaught(signal.SIGHUP, pid)
assertSignalCaught(signal.SIGPIPE, pid)
@staticmethod
def test_string_signal_mapping_specification():
import time
sclapp.enableSignalHandling(
notify_signals = ['SIGALRM'],
announce_signals = False,
)
try:
signal.alarm(1)
time.sleep(3)
except sclapp.SignalError:
pass
else:
self.fail('Expected to receive SIGALRM.')
sclapp.disableSignalHandling()
manager.add_test_case_class(SignalsTestCase)
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