167 lines
5.5 KiB
Python
167 lines
5.5 KiB
Python
# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
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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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import logging
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import time
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from os_ken.base import app_manager
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from os_ken.controller import handler
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from os_ken.lib import hub
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from os_ken.topology import event
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from os_ken.topology import switches
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LOG = logging.getLogger(__name__)
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class DiscoveryEventDumper(app_manager.OSKenApp):
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''' This app dumps discovery events
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'''
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_CONTEXTS = {
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'switches': switches.Switches,
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}
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def __init__(self, *args, **kwargs):
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super(DiscoveryEventDumper, self).__init__(*args, **kwargs)
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# For testing when sync and async request.
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# self.threads.append(
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# hub.spawn(self._switch_request_sync, 5))
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# self.threads.append(
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# hub.spawn(self._switch_request_async, 10))
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#
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# self.threads.append(
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# hub.spawn(self._link_request_sync, 5))
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# self.threads.append(
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# hub.spawn(self._link_request_async, 10))
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self.is_active = True
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@handler.set_ev_cls(event.EventSwitchEnter)
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def switch_enter_handler(self, ev):
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LOG.debug(ev)
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@handler.set_ev_cls(event.EventSwitchLeave)
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def switch_leave_handler(self, ev):
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LOG.debug(ev)
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@handler.set_ev_cls(event.EventPortAdd)
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def port_add_handler(self, ev):
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LOG.debug(ev)
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@handler.set_ev_cls(event.EventPortDelete)
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def port_delete_handler(self, ev):
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LOG.debug(ev)
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@handler.set_ev_cls(event.EventPortModify)
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def port_modify_handler(self, ev):
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LOG.debug(ev)
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@handler.set_ev_cls(event.EventLinkAdd)
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def link_add_handler(self, ev):
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LOG.debug(ev)
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@handler.set_ev_cls(event.EventLinkDelete)
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def link_del_handler(self, ev):
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LOG.debug(ev)
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def _switch_request_sync(self, interval):
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while self.is_active:
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request = event.EventSwitchRequest()
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LOG.debug('switch_request sync %s thread(%s)',
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request, id(hub.getcurrent()))
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reply = self.send_request(request)
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LOG.debug('switch_reply sync %s', reply)
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if len(reply.switches) > 0:
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for sw in reply.switches:
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LOG.debug(' %s', sw)
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hub.sleep(interval)
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def _switch_request_async(self, interval):
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while self.is_active:
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request = event.EventSwitchRequest()
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LOG.debug('switch_request async %s thread(%s)',
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request, id(hub.getcurrent()))
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self.send_event(request.dst, request)
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start = time.time()
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busy = interval / 2
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i = 0
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while i < busy:
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if time.time() > start + i:
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i += 1
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LOG.debug(' thread is busy... %s/%s thread(%s)',
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i, busy, id(hub.getcurrent()))
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LOG.debug(' thread yield to switch_reply handler. thread(%s)',
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id(hub.getcurrent()))
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# yield
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hub.sleep(0)
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LOG.debug(' thread get back. thread(%s)',
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id(hub.getcurrent()))
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hub.sleep(interval - busy)
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@handler.set_ev_cls(event.EventSwitchReply)
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def switch_reply_handler(self, reply):
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LOG.debug('switch_reply async %s', reply)
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if len(reply.switches) > 0:
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for sw in reply.switches:
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LOG.debug(' %s', sw)
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def _link_request_sync(self, interval):
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while self.is_active:
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request = event.EventLinkRequest()
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LOG.debug('link_request sync %s thread(%s)',
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request, id(hub.getcurrent()))
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reply = self.send_request(request)
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LOG.debug('link_reply sync %s', reply)
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if len(reply.links) > 0:
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for link in reply.links:
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LOG.debug(' %s', link)
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hub.sleep(interval)
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def _link_request_async(self, interval):
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while self.is_active:
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request = event.EventLinkRequest()
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LOG.debug('link_request async %s thread(%s)',
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request, id(hub.getcurrent()))
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self.send_event(request.dst, request)
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start = time.time()
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busy = interval / 2
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i = 0
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while i < busy:
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if time.time() > start + i:
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i += 1
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LOG.debug(' thread is busy... %s/%s thread(%s)',
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i, busy, id(hub.getcurrent()))
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LOG.debug(' thread yield to link_reply handler. thread(%s)',
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id(hub.getcurrent()))
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# yield
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hub.sleep(0)
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LOG.debug(' thread get back. thread(%s)',
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id(hub.getcurrent()))
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hub.sleep(interval - busy)
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@handler.set_ev_cls(event.EventLinkReply)
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def link_reply_handler(self, reply):
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LOG.debug('link_reply async %s', reply)
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if len(reply.links) > 0:
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for link in reply.links:
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LOG.debug(' %s', link)
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