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bazarr/libs/engineio/async_drivers/gevent.py

64 lines
1.8 KiB

5 years ago
from __future__ import absolute_import
import gevent
from gevent import queue
from gevent.event import Event
try:
import geventwebsocket # noqa
_websocket_available = True
except ImportError:
_websocket_available = False
class Thread(gevent.Greenlet): # pragma: no cover
"""
This wrapper class provides gevent Greenlet interface that is compatible
with the standard library's Thread class.
"""
def __init__(self, target, args=[], kwargs={}):
super(Thread, self).__init__(target, *args, **kwargs)
def _run(self):
return self.run()
class WebSocketWSGI(object): # pragma: no cover
"""
This wrapper class provides a gevent WebSocket interface that is
compatible with eventlet's implementation.
"""
def __init__(self, app):
self.app = app
def __call__(self, environ, start_response):
if 'wsgi.websocket' not in environ:
raise RuntimeError('You need to use the gevent-websocket server. '
'See the Deployment section of the '
'documentation for more information.')
self._sock = environ['wsgi.websocket']
self.environ = environ
self.version = self._sock.version
self.path = self._sock.path
self.origin = self._sock.origin
self.protocol = self._sock.protocol
return self.app(self)
def close(self):
return self._sock.close()
def send(self, message):
return self._sock.send(message)
def wait(self):
return self._sock.receive()
_async = {
'thread': Thread,
'queue': queue.JoinableQueue,
'queue_empty': queue.Empty,
'event': Event,
'websocket': WebSocketWSGI if _websocket_available else None,
'sleep': gevent.sleep,
}