fix: gunicorn run tornado app failed

[duanhongyi]

#2630
#2418

[alviezhang]

This tornado worker is intent to support tornado web framework, I don't know if it is appropriate to support Django within this module.

And there are no tests in tests/workers directory too, we might have another case in order to fix django problem and eventually breaks tornado.

[duanhongyi]

This tornado worker is intent to support tornado web framework, I don't know if it is appropriate to support Django within this module.

And there are no tests in tests/workers directory too, we might have another case in order to fix django problem and eventually breaks tornado.

If the gtornado module is only for the tornado web, not for the general WSGI program, I don't think it is necessary to exist in gunicorn.

[benoitc]

Changes looks good. Do you have any log reproducing the issue?

[duanhongyi]

Because the application of the tornado web framework does not meet the WSGI specification. And tornado server can run it directly. So we don't need to wrap tornado web application with WSGIContainer.

The error is as follows:

ERROR:tornado.application:Uncaught exception
Traceback (most recent call last):
  File "/root/tmp/tornado/lib/python3.8/site-packages/tornado/http1connection.py", line 273, in _read_message
    delegate.finish()
  File "/root/tmp/tornado/lib/python3.8/site-packages/tornado/httpserver.py", line 280, in finish
    self.request_callback(self.request)
  File "/root/tmp/tornado/lib/python3.8/site-packages/tornado/wsgi.py", line 113, in __call__
    app_response = self.wsgi_application(
TypeError: __call__() takes 2 positional arguments but 3 were given