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#!/usr/bin/env python
from electrum import interface, Interface, DEFAULT_SERVERS
import time, Queue
servers = interface.filter_protocol(DEFAULT_SERVERS,'s')
interfaces = map ( lambda server: Interface({'server':server} ), servers )
for i in interfaces: i.start()
for i in interfaces:
if i.is_connected:
i.send([('blockchain.numblocks.subscribe',[])])
i.status = "timed out"
else:
servers.remove(i.server)
i.status = "unreachable"
for i in interfaces:
while True:
try:
r = i.get_response(timeout=1)
except Queue.Empty:
break
if r.get('method') == 'blockchain.numblocks.subscribe':
servers.remove(i.server)
i.status = "ok"
i.blocks = r.get('result')
break
from collections import defaultdict
d = defaultdict(int)
for i in interfaces:
if i.status == 'ok':
d[i.blocks] += 1
v = d.values()
numblocks = d.keys()[v.index(max(v))]
for i in interfaces:
if i.status == 'ok':
if abs(i.blocks-numblocks)>1: i.status = "lagging"
else:
i.blocks = 0
print "%30s %d %s "%(i.host, i.blocks, i.status)