53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
from eventlet.green.threading import Event
|
|
from eventlet import queue, sleep, spawn
|
|
from eventlet.websocket import WebSocketWSGI as _WebSocketWSGI
|
|
|
|
|
|
class EventletThread: # pragma: no cover
|
|
"""Thread class that uses eventlet green threads.
|
|
|
|
Eventlet's own Thread class has a strange bug that causes _DummyThread
|
|
objects to be created and leaked, since they are never garbage collected.
|
|
"""
|
|
def __init__(self, target, args=None, kwargs=None):
|
|
self.target = target
|
|
self.args = args or ()
|
|
self.kwargs = kwargs or {}
|
|
self.g = None
|
|
|
|
def start(self):
|
|
self.g = spawn(self.target, *self.args, **self.kwargs)
|
|
|
|
def join(self):
|
|
if self.g:
|
|
return self.g.wait()
|
|
|
|
|
|
class WebSocketWSGI(_WebSocketWSGI): # pragma: no cover
|
|
def __init__(self, handler, server):
|
|
try:
|
|
super().__init__(
|
|
handler, max_frame_length=int(server.max_http_buffer_size))
|
|
except TypeError: # pragma: no cover
|
|
# older versions of eventlet do not support a max frame size
|
|
super().__init__(handler)
|
|
self._sock = None
|
|
|
|
def __call__(self, environ, start_response):
|
|
if 'eventlet.input' not in environ:
|
|
raise RuntimeError('You need to use the eventlet server. '
|
|
'See the Deployment section of the '
|
|
'documentation for more information.')
|
|
self._sock = environ['eventlet.input'].get_socket()
|
|
return super().__call__(environ, start_response)
|
|
|
|
|
|
_async = {
|
|
'thread': EventletThread,
|
|
'queue': queue.Queue,
|
|
'queue_empty': queue.Empty,
|
|
'event': Event,
|
|
'websocket': WebSocketWSGI,
|
|
'sleep': sleep,
|
|
}
|