def test_returnOldFD(self):
"""
L{installHandler} returns the previously registered file descriptor.
"""
read, write = self.pipe()
oldFD = installHandler(write)
self.assertEqual(installHandler(oldFD), write)
def test_returnOldFD(self):
"""
L{installHandler} returns the previously registered file descriptor.
"""
read, write = self.pipe()
oldFD = installHandler(write)
self.assertEqual(installHandler(oldFD), write)
def test_uninstallHandler(self):
"""
C{installHandler(-1)} removes the SIGCHLD handler completely.
"""
read, write = self.pipe()
self.assertTrue(isDefaultHandler())
installHandler(write)
self.assertFalse(isDefaultHandler())
installHandler(-1)
self.assertTrue(isDefaultHandler())
def test_uninstallHandler(self):
"""
C{installHandler(-1)} removes the SIGCHLD handler completely.
"""
read, write = self.pipe()
self.assertTrue(isDefaultHandler())
installHandler(write)
self.assertFalse(isDefaultHandler())
installHandler(-1)
self.assertTrue(isDefaultHandler())
def tearDown(self):
"""
Restore whatever signal handler was present when setUp ran.
"""
# If tests set up any kind of handlers, clear them out.
installHandler(-1)
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
# Now restore whatever the setup was before the test ran.
if self.signalModuleHandler is not None:
signal.signal(signal.SIGCHLD, self.signalModuleHandler)
elif self.oldFD != -1:
installHandler(self.oldFD)
def tearDown(self):
"""
Restore whatever signal handler was present when setUp ran.
"""
# If tests set up any kind of handlers, clear them out.
installHandler(-1)
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
# Now restore whatever the setup was before the test ran.
if self.signalModuleHandler is not None:
signal.signal(signal.SIGCHLD, self.signalModuleHandler)
elif self.oldFD != -1:
installHandler(self.oldFD)
def test_installHandler(self):
"""
The file descriptor passed to L{installHandler} has a byte written to
it when SIGCHLD is delivered to the process.
"""
read, write = self.pipe()
installHandler(write)
exc = self.assertRaises(OSError, os.read, read, 1)
self.assertEqual(exc.errno, errno.EAGAIN)
os.kill(os.getpid(), signal.SIGCHLD)
self.assertEqual(len(os.read(read, 5)), 1)
def test_installHandler(self):
"""
The file descriptor passed to L{installHandler} has a byte written to
it when SIGCHLD is delivered to the process.
"""
read, write = self.pipe()
installHandler(write)
exc = self.assertRaises(OSError, os.read, read, 1)
self.assertEqual(exc.errno, errno.EAGAIN)
os.kill(os.getpid(), signal.SIGCHLD)
self.assertEqual(len(os.read(read, 5)), 1)
def setUp(self):
"""
Save the current SIGCHLD handler as reported by L{signal.signal} and
the current file descriptor registered with L{installHandler}.
"""
handler = signal.getsignal(signal.SIGCHLD)
if handler != signal.SIG_DFL:
self.signalModuleHandler = handler
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
else:
self.signalModuleHandler = None
self.oldFD = installHandler(-1)
if self.signalModuleHandler is not None and self.oldFD != -1:
msg("Previous test didn't clean up after its SIGCHLD setup: %r %r"
% (self.signalModuleHandler, self.oldFD))
def setUp(self):
"""
Save the current SIGCHLD handler as reported by L{signal.signal} and
the current file descriptor registered with L{installHandler}.
"""
handler = signal.getsignal(signal.SIGCHLD)
if handler != signal.SIG_DFL:
self.signalModuleHandler = handler
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
else:
self.signalModuleHandler = None
self.oldFD = installHandler(-1)
if self.signalModuleHandler is not None and self.oldFD != -1:
msg("SIGCHLD setup issue: %r %r" % (self.signalModuleHandler, self.oldFD))
raise RuntimeError("You used some signal APIs wrong! Try again.")
def setUp(self):
"""
Save the current SIGCHLD handler as reported by L{signal.signal} and
the current file descriptor registered with L{installHandler}.
"""
handler = signal.getsignal(signal.SIGCHLD)
if handler != signal.SIG_DFL:
self.signalModuleHandler = handler
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
else:
self.signalModuleHandler = None
self.oldFD = installHandler(-1)
if self.signalModuleHandler is not None and self.oldFD != -1:
msg("Previous test didn't clean up after its SIGCHLD setup: %r %r"
% (self.signalModuleHandler, self.oldFD))
def uninstall(self):
"""
Remove the handler which makes this waker active.
"""
_signals.installHandler(-1)
def install(self):
"""
Install the handler necessary to make this waker active.
"""
_signals.installHandler(self.o)
def uninstall(self):
"""
Remove the handler which makes this waker active.
"""
_signals.installHandler(-1)
def install(self):
"""
Install the handler necessary to make this waker active.
"""
_signals.installHandler(self.o)
