a2fc54bd79
Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
# Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# client for ryu.app.ofctl.service
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from ryu.base import app_manager
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import event
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def get_datapath(app, dpid):
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"""
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Get datapath object by dpid.
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:param app: Client RyuApp instance
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:param dpid: Datapath-id (in integer)
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Returns None on error.
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"""
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assert isinstance(dpid, (int, long))
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return app.send_request(event.GetDatapathRequest(dpid=dpid))()
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def send_msg(app, msg, reply_cls=None, reply_multi=False):
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"""
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Send an OpenFlow message and wait for reply messages.
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:param app: Client RyuApp instance
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:param msg: An OpenFlow controller-to-switch message to send
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:param reply_cls: OpenFlow message class for expected replies.
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None means no replies are expected. The default is None.
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:param reply_multi: True if multipart replies are expected.
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The default is False.
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If no replies, returns None.
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If reply_multi=False, returns OpenFlow switch-to-controller message.
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If reply_multi=True, returns a list of OpenFlow switch-to-controller
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messages.
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Raise an exception on error.
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Example::
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import ryu.app.ofctl.api as api
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msg = parser.OFPPortDescStatsRequest(datapath=datapath)
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result = api.send_msg(self, msg,
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reply_cls=parser.OFPPortDescStatsReply,
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reply_multi=True)
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"""
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return app.send_request(event.SendMsgRequest(msg=msg,
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reply_cls=reply_cls,
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reply_multi=reply_multi))()
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app_manager.require_app('ryu.app.ofctl.service', api_style=True)
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