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Merge asyncio from 3.5

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This commit is contained in:
Guido van Rossum 2016-08-31 09:47:08 -07:00
commit 898ac56fc2
2 changed files with 97 additions and 11 deletions
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33
Lib/asyncio/unix_events.py
View file

@ -305,14 +305,20 @@ def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
self._loop = loop
self._pipe = pipe
self._fileno = pipe.fileno()
self._protocol = protocol
self._closing = False
mode = os.fstat(self._fileno).st_mode
if not (stat.S_ISFIFO(mode) or
stat.S_ISSOCK(mode) or
stat.S_ISCHR(mode)):
self._pipe = None
self._fileno = None
self._protocol = None
raise ValueError("Pipe transport is for pipes/sockets only.")
_set_nonblocking(self._fileno)
self._protocol = protocol
self._closing = False
self._loop.call_soon(self._protocol.connection_made, self)
# only start reading when connection_made() has been called
self._loop.call_soon(self._loop.add_reader,
@ -422,25 +428,30 @@ def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
self._extra['pipe'] = pipe
self._pipe = pipe
self._fileno = pipe.fileno()
mode = os.fstat(self._fileno).st_mode
is_socket = stat.S_ISSOCK(mode)
if not (is_socket or
stat.S_ISFIFO(mode) or
stat.S_ISCHR(mode)):
raise ValueError("Pipe transport is only for "
"pipes, sockets and character devices")
_set_nonblocking(self._fileno)
self._protocol = protocol
self._buffer = []
self._conn_lost = 0
self._closing = False # Set when close() or write_eof() called.
mode = os.fstat(self._fileno).st_mode
is_char = stat.S_ISCHR(mode)
is_fifo = stat.S_ISFIFO(mode)
is_socket = stat.S_ISSOCK(mode)
if not (is_char or is_fifo or is_socket):
self._pipe = None
self._fileno = None
self._protocol = None
raise ValueError("Pipe transport is only for "
"pipes, sockets and character devices")
_set_nonblocking(self._fileno)
self._loop.call_soon(self._protocol.connection_made, self)
# On AIX, the reader trick (to be notified when the read end of the
# socket is closed) only works for sockets. On other platforms it
# works for pipes and sockets. (Exception: OS X 10.4? Issue #19294.)
if is_socket or not sys.platform.startswith("aix"):
if is_socket or (is_fifo and not sys.platform.startswith("aix")):
# only start reading when connection_made() has been called
self._loop.call_soon(self._loop.add_reader,
self._fileno, self._read_ready)

75
Lib/test/test_asyncio/test_events.py
View file

@ -21,6 +21,8 @@
from unittest import mock
import weakref
if sys.platform != 'win32':
import tty
import asyncio
from asyncio import proactor_events
@ -1626,6 +1628,79 @@ def reader(data):
self.loop.run_until_complete(proto.done)
self.assertEqual('CLOSED', proto.state)
@unittest.skipUnless(sys.platform != 'win32',
"Don't support pipes for Windows")
# select, poll and kqueue don't support character devices (PTY) on Mac OS X
# older than 10.6 (Snow Leopard)
@support.requires_mac_ver(10, 6)
def test_bidirectional_pty(self):
master, read_slave = os.openpty()
write_slave = os.dup(read_slave)
tty.setraw(read_slave)
slave_read_obj = io.open(read_slave, 'rb', 0)
read_proto = MyReadPipeProto(loop=self.loop)
read_connect = self.loop.connect_read_pipe(lambda: read_proto,
slave_read_obj)
read_transport, p = self.loop.run_until_complete(read_connect)
self.assertIs(p, read_proto)
self.assertIs(read_transport, read_proto.transport)
self.assertEqual(['INITIAL', 'CONNECTED'], read_proto.state)
self.assertEqual(0, read_proto.nbytes)
slave_write_obj = io.open(write_slave, 'wb', 0)
write_proto = MyWritePipeProto(loop=self.loop)
write_connect = self.loop.connect_write_pipe(lambda: write_proto,
slave_write_obj)
write_transport, p = self.loop.run_until_complete(write_connect)
self.assertIs(p, write_proto)
self.assertIs(write_transport, write_proto.transport)
self.assertEqual('CONNECTED', write_proto.state)
data = bytearray()
def reader(data):
chunk = os.read(master, 1024)
data += chunk
return len(data)
write_transport.write(b'1')
test_utils.run_until(self.loop, lambda: reader(data) >= 1, timeout=10)
self.assertEqual(b'1', data)
self.assertEqual(['INITIAL', 'CONNECTED'], read_proto.state)
self.assertEqual('CONNECTED', write_proto.state)
os.write(master, b'a')
test_utils.run_until(self.loop, lambda: read_proto.nbytes >= 1,
timeout=10)
self.assertEqual(['INITIAL', 'CONNECTED'], read_proto.state)
self.assertEqual(1, read_proto.nbytes)
self.assertEqual('CONNECTED', write_proto.state)
write_transport.write(b'2345')
test_utils.run_until(self.loop, lambda: reader(data) >= 5, timeout=10)
self.assertEqual(b'12345', data)
self.assertEqual(['INITIAL', 'CONNECTED'], read_proto.state)
self.assertEqual('CONNECTED', write_proto.state)
os.write(master, b'bcde')
test_utils.run_until(self.loop, lambda: read_proto.nbytes >= 5,
timeout=10)
self.assertEqual(['INITIAL', 'CONNECTED'], read_proto.state)
self.assertEqual(5, read_proto.nbytes)
self.assertEqual('CONNECTED', write_proto.state)
os.close(master)
read_transport.close()
self.loop.run_until_complete(read_proto.done)
self.assertEqual(
['INITIAL', 'CONNECTED', 'EOF', 'CLOSED'], read_proto.state)
write_transport.close()
self.loop.run_until_complete(write_proto.done)
self.assertEqual('CLOSED', write_proto.state)
def test_prompt_cancellation(self):
r, w = test_utils.socketpair()
r.setblocking(False)