You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
3.0 KiB
Python
111 lines
3.0 KiB
Python
import errno
|
|
import select
|
|
|
|
import os
|
|
import sys
|
|
import pytest
|
|
|
|
from .._core.tests.tutil import gc_collect_harder
|
|
from .. import _core, move_on_after
|
|
from ..testing import wait_all_tasks_blocked, check_one_way_stream
|
|
|
|
if sys.platform == "win32":
|
|
from .._windows_pipes import PipeSendStream, PipeReceiveStream
|
|
from .._core._windows_cffi import _handle, kernel32
|
|
from asyncio.windows_utils import pipe
|
|
else:
|
|
pytestmark = pytest.mark.skip(reason="windows only")
|
|
pipe = None # type: Any
|
|
PipeSendStream = None # type: Any
|
|
PipeReceiveStream = None # type: Any
|
|
|
|
|
|
async def make_pipe() -> "Tuple[PipeSendStream, PipeReceiveStream]":
|
|
"""Makes a new pair of pipes."""
|
|
(r, w) = pipe()
|
|
return PipeSendStream(w), PipeReceiveStream(r)
|
|
|
|
|
|
async def test_pipe_typecheck():
|
|
with pytest.raises(TypeError):
|
|
PipeSendStream(1.0)
|
|
with pytest.raises(TypeError):
|
|
PipeReceiveStream(None)
|
|
|
|
|
|
async def test_pipe_error_on_close():
|
|
# Make sure we correctly handle a failure from kernel32.CloseHandle
|
|
r, w = pipe()
|
|
|
|
send_stream = PipeSendStream(w)
|
|
receive_stream = PipeReceiveStream(r)
|
|
|
|
assert kernel32.CloseHandle(_handle(r))
|
|
assert kernel32.CloseHandle(_handle(w))
|
|
|
|
with pytest.raises(OSError):
|
|
await send_stream.aclose()
|
|
with pytest.raises(OSError):
|
|
await receive_stream.aclose()
|
|
|
|
|
|
async def test_pipes_combined():
|
|
write, read = await make_pipe()
|
|
count = 2**20
|
|
replicas = 3
|
|
|
|
async def sender():
|
|
async with write:
|
|
big = bytearray(count)
|
|
for _ in range(replicas):
|
|
await write.send_all(big)
|
|
|
|
async def reader():
|
|
async with read:
|
|
await wait_all_tasks_blocked()
|
|
total_received = 0
|
|
while True:
|
|
# 5000 is chosen because it doesn't evenly divide 2**20
|
|
received = len(await read.receive_some(5000))
|
|
if not received:
|
|
break
|
|
total_received += received
|
|
|
|
assert total_received == count * replicas
|
|
|
|
async with _core.open_nursery() as n:
|
|
n.start_soon(sender)
|
|
n.start_soon(reader)
|
|
|
|
|
|
async def test_async_with():
|
|
w, r = await make_pipe()
|
|
async with w, r:
|
|
pass
|
|
|
|
with pytest.raises(_core.ClosedResourceError):
|
|
await w.send_all(b"")
|
|
with pytest.raises(_core.ClosedResourceError):
|
|
await r.receive_some(10)
|
|
|
|
|
|
async def test_close_during_write():
|
|
w, r = await make_pipe()
|
|
async with _core.open_nursery() as nursery:
|
|
|
|
async def write_forever():
|
|
with pytest.raises(_core.ClosedResourceError) as excinfo:
|
|
while True:
|
|
await w.send_all(b"x" * 4096)
|
|
assert "another task" in str(excinfo.value)
|
|
|
|
nursery.start_soon(write_forever)
|
|
await wait_all_tasks_blocked(0.1)
|
|
await w.aclose()
|
|
|
|
|
|
async def test_pipe_fully():
|
|
# passing make_clogged_pipe tests wait_send_all_might_not_block, and we
|
|
# can't implement that on Windows
|
|
await check_one_way_stream(make_pipe, None)
|