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bpo-33532: Fix test_multiprocessing_forkserver.test_ignore() (GH-7319)

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Use also support.SOCK_MAX_SIZE, not only support.PIPE_MAX_SIZE, to
get the size for a blocking send into a multiprocessing pipe.
(cherry picked from commit 252f6abe0a)

Co-authored-by: Victor Stinner <vstinner@redhat.com>
This commit is contained in:
Miss Islington (bot) 2018-06-01 08:21:21 -07:00 • committed by GitHub
parent 29ae9dc7c3
commit 63fa8db58c
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 2 deletions
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7
Lib/test/_test_multiprocessing.py
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@ -4295,6 +4295,9 @@ class TestCloseFds(unittest.TestCase):
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):
@ -4303,7 +4306,7 @@ class TestIgnoreEINTR(unittest.TestCase):
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):
@ -4322,7 +4325,7 @@ class TestIgnoreEINTR(unittest.TestCase):
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: