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# Copyright (c) 2009, 2010, 2012 Nicira, Inc.
#
# 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 errno
import sys
import ovs.reconnect
now = 0
r = None
def do_enable(_):
r.enable(now)
def do_disable(_):
r.disable(now)
def do_force_reconnect(_):
r.force_reconnect(now)
def error_from_string(s):
if not s:
return 0
elif s == "ECONNREFUSED":
return errno.ECONNREFUSED
elif s == "EOF":
return ovs.reconnect.EOF
else:
sys.stderr.write("unknown error '%s'\n" % s)
sys.exit(1)
def do_disconnected(arg):
r.disconnected(now, error_from_string(arg))
def do_connecting(_):
r.connecting(now)
def do_connect_failed(arg):
r.connect_failed(now, error_from_string(arg))
def do_connected(_):
r.connected(now)
def do_activity(_):
r.activity(now)
def do_run(arg):
global now
if arg is not None:
now += int(arg)
action = r.run(now)
if action is None:
pass
elif action == ovs.reconnect.CONNECT:
print " should connect"
elif action == ovs.reconnect.DISCONNECT:
print " should disconnect"
elif action == ovs.reconnect.PROBE:
print " should send probe"
else:
assert False
def do_advance(arg):
global now
now += int(arg)
def do_timeout(_):
global now
timeout = r.timeout(now)
if timeout >= 0:
print " advance %d ms" % timeout
now += timeout
else:
print " no timeout"
def do_set_max_tries(arg):
r.set_max_tries(int(arg))
def diff_stats(old, new, delta):
if (old.state != new.state or
old.state_elapsed != new.state_elapsed or
old.backoff != new.backoff):
print(" in %s for %d ms (%d ms backoff)"
% (new.state, new.state_elapsed, new.backoff))
if (old.creation_time != new.creation_time or
old.last_activity != new.last_activity or
old.last_connected != new.last_connected):
print(" created %d, last activity %d, last connected %d"
% (new.creation_time, new.last_activity, new.last_connected))
if (old.n_successful_connections != new.n_successful_connections or
old.n_attempted_connections != new.n_attempted_connections or
old.seqno != new.seqno):
print(" %d successful connections out of %d attempts, seqno %d"
% (new.n_successful_connections, new.n_attempted_connections,
new.seqno))
if (old.is_connected != new.is_connected):
if new.is_connected:
negate = ""
else:
negate = "dis"
print(" %sconnected" % negate)
if (old.last_connected != new.last_connected or
(new.msec_since_connect != None and
old.msec_since_connect != new.msec_since_connect - delta) or
(old.total_connected_duration != new.total_connected_duration - delta
and not (old.total_connected_duration == 0 and
new.total_connected_duration == 0))):
print(" last connected %d ms ago, connected %d ms total"
% (new.msec_since_connect, new.total_connected_duration))
if (old.last_disconnected != new.last_disconnected or
(new.msec_since_disconnect != None and
old.msec_since_disconnect != new.msec_since_disconnect - delta)):
print(" disconnected at %d ms (%d ms ago)"
% (new.last_disconnected, new.msec_since_disconnect))
def do_set_passive(_):
r.set_passive(True, now)
def do_listening(_):
r.listening(now)
def do_listen_error(arg):
r.listen_error(now, int(arg))
def main():
commands = {
"enable": do_enable,
"disable": do_disable,
"force-reconnect": do_force_reconnect,
"disconnected": do_disconnected,
"connecting": do_connecting,
"connect-failed": do_connect_failed,
"connected": do_connected,
"activity": do_activity,
"run": do_run,
"advance": do_advance,
"timeout": do_timeout,
"set-max-tries": do_set_max_tries,
"passive": do_set_passive,
"listening": do_listening,
"listen-error": do_listen_error
}
global now
global r
now = 1000
r = ovs.reconnect.Reconnect(now)
r.set_name("remote")
prev = r.get_stats(now)
print "### t=%d ###" % now
old_time = now
old_max_tries = r.get_max_tries()
while True:
line = sys.stdin.readline()
if line == "":
break
print line[:-1]
if line[0] == "#":
continue
args = line.split()
if len(args) == 0:
continue
command = args[0]
if len(args) > 1:
op = args[1]
else:
op = None
commands[command](op)
if old_time != now:
print
print "### t=%d ###" % now
cur = r.get_stats(now)
diff_stats(prev, cur, now - old_time)
prev = cur
if r.get_max_tries() != old_max_tries:
old_max_tries = r.get_max_tries()
print " %d tries left" % old_max_tries
old_time = now
if __name__ == '__main__':
main()
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