class TestIgnoreEINTR(unittest.TestCase):

# Sending CONN_MAX_SIZE bytes into a multiprocessing pipe must block

CONN_MAX_SIZE = max(support.PIPE_MAX_SIZE, support.SOCK_MAX_SIZE)

@classmethod

def _test_ignore(cls, conn):

def handler(signum, frame):

conn.send('ready')

x = conn.recv()

conn.send(x)

conn.send_bytes(b'x' * support.PIPE_MAX_SIZE)

conn.send_bytes(b'x' * cls.CONN_MAX_SIZE)

@unittest.skipUnless(hasattr(signal, 'SIGUSR1'), 'requires SIGUSR1')

def test_ignore(self):

self.assertEqual(conn.recv(), 1234)

time.sleep(0.1)

os.kill(p.pid, signal.SIGUSR1)

self.assertEqual(conn.recv_bytes(), b'x' * support.PIPE_MAX_SIZE)

self.assertEqual(conn.recv_bytes(), b'x' * self.CONN_MAX_SIZE)

time.sleep(0.1)

p.join()

finally: