def test_signalfd(self):
signals = [signal.SIGUSR1]
signalfd.sigprocmask(signalfd.SIG_BLOCK, signals)
fd = signalfd.SignalFD(signals)
os.kill(os.getpid(), signal.SIGUSR1)
siginfo = fd.read()
self.assertEqual(siginfo.signo, signal.SIGUSR1)
def test_errors(self):
with self.assertRaises(OSError) as cm:
signalfd._signals_to_sigset([-1])
self.assertEqual(cm.exception.errno, errno.EINVAL)
with self.assertRaises(OSError) as cm:
signalfd.sigprocmask(-1, [signal.SIGUSR1])
self.assertEqual(cm.exception.errno, errno.EINVAL)
with self.assertRaises(OSError) as cm:
signalfd.SignalFD([signal.SIGUSR1], -1)
self.assertEqual(cm.exception.errno, errno.EINVAL)
def test_nonblock(self):
signals = [signal.SIGUSR1]
flags = signalfd.SFD_CLOEXEC | signalfd.SFD_NONBLOCK
signalfd.sigprocmask(signalfd.SIG_BLOCK, signals)
fd = signalfd.SignalFD(signals, flags)
self.assertRaises(BlockingIOError, fd.read)
selector = selectors.DefaultSelector()
key = selector.register(fd, selectors.EVENT_READ, None)
self.assertEqual(selector.select(timeout=0), [])
os.kill(os.getpid(), signal.SIGUSR1)
self.assertEqual(selector.select(), [(key, selectors.EVENT_READ)])