1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import time
from os_ken.base import app_manager
from os_ken.controller import handler
from os_ken.lib import hub
from os_ken.topology import event
from os_ken.topology import switches
LOG = logging.getLogger(__name__)
class DiscoveryEventDumper(app_manager.OSKenApp):
''' This app dumps discovery events
'''
_CONTEXTS = {
'switches': switches.Switches,
}
def __init__(self, *args, **kwargs):
super(DiscoveryEventDumper, self).__init__(*args, **kwargs)
# For testing when sync and async request.
# self.threads.append(
# hub.spawn(self._switch_request_sync, 5))
# self.threads.append(
# hub.spawn(self._switch_request_async, 10))
#
# self.threads.append(
# hub.spawn(self._link_request_sync, 5))
# self.threads.append(
# hub.spawn(self._link_request_async, 10))
self.is_active = True
@handler.set_ev_cls(event.EventSwitchEnter)
def switch_enter_handler(self, ev):
LOG.debug(ev)
@handler.set_ev_cls(event.EventSwitchLeave)
def switch_leave_handler(self, ev):
LOG.debug(ev)
@handler.set_ev_cls(event.EventPortAdd)
def port_add_handler(self, ev):
LOG.debug(ev)
@handler.set_ev_cls(event.EventPortDelete)
def port_delete_handler(self, ev):
LOG.debug(ev)
@handler.set_ev_cls(event.EventPortModify)
def port_modify_handler(self, ev):
LOG.debug(ev)
@handler.set_ev_cls(event.EventLinkAdd)
def link_add_handler(self, ev):
LOG.debug(ev)
@handler.set_ev_cls(event.EventLinkDelete)
def link_del_handler(self, ev):
LOG.debug(ev)
def _switch_request_sync(self, interval):
while self.is_active:
request = event.EventSwitchRequest()
LOG.debug('switch_request sync %s thread(%s)',
request, id(hub.getcurrent()))
reply = self.send_request(request)
LOG.debug('switch_reply sync %s', reply)
if len(reply.switches) > 0:
for sw in reply.switches:
LOG.debug(' %s', sw)
hub.sleep(interval)
def _switch_request_async(self, interval):
while self.is_active:
request = event.EventSwitchRequest()
LOG.debug('switch_request async %s thread(%s)',
request, id(hub.getcurrent()))
self.send_event(request.dst, request)
start = time.time()
busy = interval / 2
i = 0
while i < busy:
if time.time() > start + i:
i += 1
LOG.debug(' thread is busy... %s/%s thread(%s)',
i, busy, id(hub.getcurrent()))
LOG.debug(' thread yield to switch_reply handler. thread(%s)',
id(hub.getcurrent()))
# yield
hub.sleep(0)
LOG.debug(' thread get back. thread(%s)',
id(hub.getcurrent()))
hub.sleep(interval - busy)
@handler.set_ev_cls(event.EventSwitchReply)
def switch_reply_handler(self, reply):
LOG.debug('switch_reply async %s', reply)
if len(reply.switches) > 0:
for sw in reply.switches:
LOG.debug(' %s', sw)
def _link_request_sync(self, interval):
while self.is_active:
request = event.EventLinkRequest()
LOG.debug('link_request sync %s thread(%s)',
request, id(hub.getcurrent()))
reply = self.send_request(request)
LOG.debug('link_reply sync %s', reply)
if len(reply.links) > 0:
for link in reply.links:
LOG.debug(' %s', link)
hub.sleep(interval)
def _link_request_async(self, interval):
while self.is_active:
request = event.EventLinkRequest()
LOG.debug('link_request async %s thread(%s)',
request, id(hub.getcurrent()))
self.send_event(request.dst, request)
start = time.time()
busy = interval / 2
i = 0
while i < busy:
if time.time() > start + i:
i += 1
LOG.debug(' thread is busy... %s/%s thread(%s)',
i, busy, id(hub.getcurrent()))
LOG.debug(' thread yield to link_reply handler. thread(%s)',
id(hub.getcurrent()))
# yield
hub.sleep(0)
LOG.debug(' thread get back. thread(%s)',
id(hub.getcurrent()))
hub.sleep(interval - busy)
@handler.set_ev_cls(event.EventLinkReply)
def link_reply_handler(self, reply):
LOG.debug('link_reply async %s', reply)
if len(reply.links) > 0:
for link in reply.links:
LOG.debug(' %s', link)
|
