You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.9 KiB
84 lines
2.9 KiB
import gevent
|
|
from gevent import queue
|
|
from gevent.event import Event
|
|
try:
|
|
# use gevent-websocket if installed
|
|
import geventwebsocket # noqa
|
|
SimpleWebSocketWSGI = None
|
|
except ImportError: # pragma: no cover
|
|
# fallback to simple_websocket when gevent-websocket is not installed
|
|
from engineio.async_drivers._websocket_wsgi import SimpleWebSocketWSGI
|
|
|
|
|
|
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().__init__(target, *args, **kwargs)
|
|
|
|
def _run(self):
|
|
return self.run()
|
|
|
|
|
|
if SimpleWebSocketWSGI is not None:
|
|
class WebSocketWSGI(SimpleWebSocketWSGI): # pragma: no cover
|
|
"""
|
|
This wrapper class provides a gevent WebSocket interface that is
|
|
compatible with eventlet's implementation, using the simple-websocket
|
|
package.
|
|
"""
|
|
def __init__(self, handler, server):
|
|
# to avoid the requirement that the standard library is
|
|
# monkey-patched, here we pass the gevent versions of the
|
|
# concurrency and networking classes required by simple-websocket
|
|
import gevent.event
|
|
import gevent.selectors
|
|
super().__init__(handler, server,
|
|
thread_class=Thread,
|
|
event_class=gevent.event.Event,
|
|
selector_class=gevent.selectors.DefaultSelector)
|
|
else:
|
|
class WebSocketWSGI: # pragma: no cover
|
|
"""
|
|
This wrapper class provides a gevent WebSocket interface that is
|
|
compatible with eventlet's implementation, using the gevent-websocket
|
|
package.
|
|
"""
|
|
def __init__(self, handler, server):
|
|
self.app = handler
|
|
|
|
def __call__(self, environ, start_response):
|
|
if 'wsgi.websocket' not in environ:
|
|
raise RuntimeError('The gevent-websocket server is not '
|
|
'configured appropriately. '
|
|
'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,
|
|
'sleep': gevent.sleep,
|
|
}
|