openstack/deb-python-eventlet
Code Issues Proposed changes

dns: EVENTLET_NO_GREENDNS option is back, green is still default

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Sorry for negation in name, perfectionists want EVENTLET_GREEN_DNS=no
but I figured it's lesser evil than reviving same behavior under different name.

This works around https://github.com/eventlet/eventlet/issues/383
at the cost of resolving blocking other greenthreads.
This commit is contained in:
Sergey Shepelev 2017-02-02 05:34:11 +03:00
parent f92b49f77e
commit 78f2ef8a81
1 changed files with 7 additions and 13 deletions
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20
eventlet/green/socket.py
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@ -1,6 +1,5 @@
import os
import sys
import warnings
__import__('eventlet.green._socket_nodns')
__socket = sys.modules['eventlet.green._socket_nodns']
@ -18,18 +17,13 @@ from eventlet.patcher import slurp_properties
slurp_properties(__socket, globals(), srckeys=dir(__socket))
if os.environ.get("EVENTLET_NO_GREENDNS", '').lower() == "yes":
warnings.warn(
'EVENTLET_NO_GREENDNS is noop, dnspython is bundled and DNS resolution is always green',
DeprecationWarning,
stacklevel=2,
)
from eventlet.support import greendns
gethostbyname = greendns.gethostbyname
getaddrinfo = greendns.getaddrinfo
gethostbyname_ex = greendns.gethostbyname_ex
getnameinfo = greendns.getnameinfo
if os.environ.get("EVENTLET_NO_GREENDNS", '').lower() != 'yes':
from eventlet.support import greendns
gethostbyname = greendns.gethostbyname
getaddrinfo = greendns.getaddrinfo
gethostbyname_ex = greendns.gethostbyname_ex
getnameinfo = greendns.getnameinfo
del greendns
def create_connection(address,