forked from M-Labs/artiq
monkey-patch asyncio.proactor_events to handle ConnectionAbortedError on Windows. Closes #247
This commit is contained in:
parent
d0cf589229
commit
579168f06f
|
|
@ -0,0 +1,157 @@
|
|||
import sys
|
||||
|
||||
|
||||
__all__ = []
|
||||
|
||||
|
||||
if sys.version_info[:3] == (3, 5, 1):
|
||||
import asyncio
|
||||
import socket
|
||||
import collections
|
||||
import itertools
|
||||
import os
|
||||
|
||||
# See https://github.com/m-labs/artiq/issues/253
|
||||
@asyncio.coroutines.coroutine
|
||||
def create_server(self, protocol_factory, host=None, port=None,
|
||||
*,
|
||||
family=socket.AF_UNSPEC,
|
||||
flags=socket.AI_PASSIVE,
|
||||
sock=None,
|
||||
backlog=100,
|
||||
ssl=None,
|
||||
reuse_address=None,
|
||||
reuse_port=None):
|
||||
"""Create a TCP server.
|
||||
The host parameter can be a string, in that case the TCP server is bound
|
||||
to host and port.
|
||||
The host parameter can also be a sequence of strings and in that case
|
||||
the TCP server is bound to all hosts of the sequence. If a host
|
||||
appears multiple times (possibly indirectly e.g. when hostnames
|
||||
resolve to the same IP address), the server is only bound once to that
|
||||
host.
|
||||
Return a Server object which can be used to stop the service.
|
||||
This method is a coroutine.
|
||||
"""
|
||||
if isinstance(ssl, bool):
|
||||
raise TypeError('ssl argument must be an SSLContext or None')
|
||||
if host is not None or port is not None:
|
||||
if sock is not None:
|
||||
raise ValueError(
|
||||
'host/port and sock can not be specified at the same time')
|
||||
|
||||
AF_INET6 = getattr(socket, 'AF_INET6', 0)
|
||||
if reuse_address is None:
|
||||
reuse_address = os.name == 'posix' and sys.platform != 'cygwin'
|
||||
sockets = []
|
||||
if host == '':
|
||||
hosts = [None]
|
||||
elif (isinstance(host, str) or
|
||||
not isinstance(host, collections.Iterable)):
|
||||
hosts = [host]
|
||||
else:
|
||||
hosts = host
|
||||
|
||||
fs = [self._create_server_getaddrinfo(host, port, family=family,
|
||||
flags=flags)
|
||||
for host in hosts]
|
||||
infos = yield from asyncio.tasks.gather(*fs, loop=self)
|
||||
infos = set(itertools.chain.from_iterable(infos))
|
||||
|
||||
completed = False
|
||||
try:
|
||||
for res in infos:
|
||||
af, socktype, proto, canonname, sa = res
|
||||
try:
|
||||
sock = socket.socket(af, socktype, proto)
|
||||
except socket.error:
|
||||
# Assume it's a bad family/type/protocol combination.
|
||||
if self._debug:
|
||||
asyncio.log.logger.warning('create_server() failed to create '
|
||||
'socket.socket(%r, %r, %r)',
|
||||
af, socktype, proto, exc_info=True)
|
||||
continue
|
||||
sockets.append(sock)
|
||||
if reuse_address:
|
||||
sock.setsockopt(
|
||||
socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
|
||||
if reuse_port:
|
||||
if not hasattr(socket, 'SO_REUSEPORT'):
|
||||
raise ValueError(
|
||||
'reuse_port not supported by socket module')
|
||||
else:
|
||||
sock.setsockopt(
|
||||
socket.SOL_SOCKET, socket.SO_REUSEPORT, True)
|
||||
# Disable IPv4/IPv6 dual stack support (enabled by
|
||||
# default on Linux) which makes a single socket
|
||||
# listen on both address families.
|
||||
if af == AF_INET6 and hasattr(socket, 'IPPROTO_IPV6'):
|
||||
sock.setsockopt(socket.IPPROTO_IPV6,
|
||||
socket.IPV6_V6ONLY,
|
||||
True)
|
||||
try:
|
||||
sock.bind(sa)
|
||||
except OSError as err:
|
||||
raise OSError(err.errno, 'error while attempting '
|
||||
'to bind on address %r: %s'
|
||||
% (sa, err.strerror.lower()))
|
||||
completed = True
|
||||
finally:
|
||||
if not completed:
|
||||
for sock in sockets:
|
||||
sock.close()
|
||||
else:
|
||||
if sock is None:
|
||||
raise ValueError('Neither host/port nor sock were specified')
|
||||
sockets = [sock]
|
||||
|
||||
server = asyncio.base_events.Server(self, sockets)
|
||||
for sock in sockets:
|
||||
sock.listen(backlog)
|
||||
sock.setblocking(False)
|
||||
self._start_serving(protocol_factory, sock, ssl, server)
|
||||
if self._debug:
|
||||
asyncio.log.logger.info("%r is serving", server)
|
||||
return server
|
||||
|
||||
asyncio.base_events.BaseEventLoop.create_server = create_server
|
||||
|
||||
|
||||
# See https://github.com/m-labs/artiq/issues/247
|
||||
def _loop_writing(self, f=None, data=None):
|
||||
try:
|
||||
assert f is self._write_fut
|
||||
self._write_fut = None
|
||||
self._pending_write = 0
|
||||
if f:
|
||||
f.result()
|
||||
if data is None:
|
||||
data = self._buffer
|
||||
self._buffer = None
|
||||
if not data:
|
||||
if self._closing:
|
||||
self._loop.call_soon(self._call_connection_lost, None)
|
||||
if self._eof_written:
|
||||
self._sock.shutdown(socket.SHUT_WR)
|
||||
# Now that we've reduced the buffer size, tell the
|
||||
# protocol to resume writing if it was paused. Note that
|
||||
# we do this last since the callback is called immediately
|
||||
# and it may add more data to the buffer (even causing the
|
||||
# protocol to be paused again).
|
||||
self._maybe_resume_protocol()
|
||||
else:
|
||||
self._write_fut = self._loop._proactor.send(self._sock, data)
|
||||
if not self._write_fut.done():
|
||||
assert self._pending_write == 0
|
||||
self._pending_write = len(data)
|
||||
self._write_fut.add_done_callback(self._loop_writing)
|
||||
self._maybe_pause_protocol()
|
||||
else:
|
||||
self._write_fut.add_done_callback(self._loop_writing)
|
||||
except (ConnectionResetError, ConnectionAbortedError) as exc:
|
||||
self._force_close(exc)
|
||||
except OSError as exc:
|
||||
self._fatal_error(exc, 'Fatal write error on pipe transport')
|
||||
|
||||
from asyncio import proactor_events
|
||||
proactor_events._ProactorBaseWritePipeTransport._loop_writing = _loop_writing
|
||||
|
|
@ -1,6 +1,8 @@
|
|||
import asyncio
|
||||
from copy import copy
|
||||
|
||||
from artiq.monkey_patches import *
|
||||
|
||||
|
||||
class AsyncioServer:
|
||||
"""Generic TCP server based on asyncio.
|
||||
|
|
|
|||
108
artiq/tools.py
108
artiq/tools.py
|
|
@ -7,8 +7,6 @@ import asyncio
|
|||
import time
|
||||
import collections
|
||||
import os
|
||||
import socket
|
||||
import itertools
|
||||
import atexit
|
||||
import string
|
||||
|
||||
|
|
@ -245,109 +243,3 @@ def get_windows_drives():
|
|||
drives.append(letter)
|
||||
bitmask >>= 1
|
||||
return drives
|
||||
|
||||
if sys.version_info[:3] == (3, 5, 1):
|
||||
# See https://github.com/m-labs/artiq/issues/253
|
||||
@asyncio.coroutines.coroutine
|
||||
def create_server(self, protocol_factory, host=None, port=None,
|
||||
*,
|
||||
family=socket.AF_UNSPEC,
|
||||
flags=socket.AI_PASSIVE,
|
||||
sock=None,
|
||||
backlog=100,
|
||||
ssl=None,
|
||||
reuse_address=None,
|
||||
reuse_port=None):
|
||||
"""Create a TCP server.
|
||||
The host parameter can be a string, in that case the TCP server is bound
|
||||
to host and port.
|
||||
The host parameter can also be a sequence of strings and in that case
|
||||
the TCP server is bound to all hosts of the sequence. If a host
|
||||
appears multiple times (possibly indirectly e.g. when hostnames
|
||||
resolve to the same IP address), the server is only bound once to that
|
||||
host.
|
||||
Return a Server object which can be used to stop the service.
|
||||
This method is a coroutine.
|
||||
"""
|
||||
if isinstance(ssl, bool):
|
||||
raise TypeError('ssl argument must be an SSLContext or None')
|
||||
if host is not None or port is not None:
|
||||
if sock is not None:
|
||||
raise ValueError(
|
||||
'host/port and sock can not be specified at the same time')
|
||||
|
||||
AF_INET6 = getattr(socket, 'AF_INET6', 0)
|
||||
if reuse_address is None:
|
||||
reuse_address = os.name == 'posix' and sys.platform != 'cygwin'
|
||||
sockets = []
|
||||
if host == '':
|
||||
hosts = [None]
|
||||
elif (isinstance(host, str) or
|
||||
not isinstance(host, collections.Iterable)):
|
||||
hosts = [host]
|
||||
else:
|
||||
hosts = host
|
||||
|
||||
fs = [self._create_server_getaddrinfo(host, port, family=family,
|
||||
flags=flags)
|
||||
for host in hosts]
|
||||
infos = yield from asyncio.tasks.gather(*fs, loop=self)
|
||||
infos = set(itertools.chain.from_iterable(infos))
|
||||
|
||||
completed = False
|
||||
try:
|
||||
for res in infos:
|
||||
af, socktype, proto, canonname, sa = res
|
||||
try:
|
||||
sock = socket.socket(af, socktype, proto)
|
||||
except socket.error:
|
||||
# Assume it's a bad family/type/protocol combination.
|
||||
if self._debug:
|
||||
asyncio.log.logger.warning('create_server() failed to create '
|
||||
'socket.socket(%r, %r, %r)',
|
||||
af, socktype, proto, exc_info=True)
|
||||
continue
|
||||
sockets.append(sock)
|
||||
if reuse_address:
|
||||
sock.setsockopt(
|
||||
socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
|
||||
if reuse_port:
|
||||
if not hasattr(socket, 'SO_REUSEPORT'):
|
||||
raise ValueError(
|
||||
'reuse_port not supported by socket module')
|
||||
else:
|
||||
sock.setsockopt(
|
||||
socket.SOL_SOCKET, socket.SO_REUSEPORT, True)
|
||||
# Disable IPv4/IPv6 dual stack support (enabled by
|
||||
# default on Linux) which makes a single socket
|
||||
# listen on both address families.
|
||||
if af == AF_INET6 and hasattr(socket, 'IPPROTO_IPV6'):
|
||||
sock.setsockopt(socket.IPPROTO_IPV6,
|
||||
socket.IPV6_V6ONLY,
|
||||
True)
|
||||
try:
|
||||
sock.bind(sa)
|
||||
except OSError as err:
|
||||
raise OSError(err.errno, 'error while attempting '
|
||||
'to bind on address %r: %s'
|
||||
% (sa, err.strerror.lower()))
|
||||
completed = True
|
||||
finally:
|
||||
if not completed:
|
||||
for sock in sockets:
|
||||
sock.close()
|
||||
else:
|
||||
if sock is None:
|
||||
raise ValueError('Neither host/port nor sock were specified')
|
||||
sockets = [sock]
|
||||
|
||||
server = asyncio.base_events.Server(self, sockets)
|
||||
for sock in sockets:
|
||||
sock.listen(backlog)
|
||||
sock.setblocking(False)
|
||||
self._start_serving(protocol_factory, sock, ssl, server)
|
||||
if self._debug:
|
||||
asyncio.log.logger.info("%r is serving", server)
|
||||
return server
|
||||
|
||||
asyncio.base_events.BaseEventLoop.create_server = create_server
|
||||
|
|
|
|||
Loading…
Reference in New Issue