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Upgraded engine.io module to improve socket.io connection stability. …
…Should help to prevent #1613.
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,17 +1,48 @@ | ||
from __future__ import absolute_import | ||
import queue | ||
import threading | ||
import time | ||
|
||
try: | ||
import queue | ||
from simple_websocket import Server, ConnectionClosed | ||
_websocket_available = True | ||
except ImportError: # pragma: no cover | ||
import Queue as queue | ||
_websocket_available = False | ||
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class WebSocketWSGI(object): # pragma: no cover | ||
""" | ||
This wrapper class provides a threading WebSocket interface that is | ||
compatible with eventlet's implementation. | ||
""" | ||
def __init__(self, app): | ||
self.app = app | ||
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def __call__(self, environ, start_response): | ||
self.ws = Server(environ) | ||
return self.app(self) | ||
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def close(self): | ||
return self.ws.close() | ||
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def send(self, message): | ||
try: | ||
return self.ws.send(message) | ||
except ConnectionClosed: | ||
raise IOError() | ||
|
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def wait(self): | ||
try: | ||
return self.ws.receive() | ||
except ConnectionClosed: | ||
raise IOError() | ||
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_async = { | ||
'thread': threading.Thread, | ||
'queue': queue.Queue, | ||
'queue_empty': queue.Empty, | ||
'event': threading.Event, | ||
'websocket': None, | ||
'websocket': WebSocketWSGI if _websocket_available else None, | ||
'sleep': time.sleep, | ||
} |
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