def send_msg(app, msg, reply_cls=None, reply_multi=False):
"""
Send an OpenFlow message and wait for reply messages.
:param app: Client RyuApp instance
:param msg: An OpenFlow controller-to-switch message to send
:param reply_cls: OpenFlow message class for expected replies.
None means no replies are expected. The default is None.
:param reply_multi: True if multipart replies are expected.
The default is False.
If no replies, returns None.
If reply_multi=False, returns OpenFlow switch-to-controller message.
If reply_multi=True, returns a list of OpenFlow switch-to-controller
messages.
Raise an exception on error.
Example::
import ryu.app.ofctl.api as api
msg = parser.OFPPortDescStatsRequest(datapath=datapath)
result = api.send_msg(self, msg,
reply_cls=parser.OFPPortDescStatsReply,
reply_multi=True)
"""
return app.send_request(
event.SendMsgRequest(msg=msg,
reply_cls=reply_cls,
reply_multi=reply_multi))()
def send_msg(app, msg, reply_cls=None, reply_multi=False):
"""
Send an openflow message.
"""
return app.send_request(event.SendMsgRequest(msg=msg,
reply_cls=reply_cls,
reply_multi=reply_multi))()
def send_msg(app, msg):
"""
Send an openflow message.
"""
return app.send_request(event.SendMsgRequest(msg=msg))()