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resync.js
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resync.js
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var gen = require('ssb-generate')
var pull = require('pull-stream')
var paramap = require('pull-paramap')
var crypto = require('crypto')
var ssbKeys = require('ssb-keys')
function randint (n) {
return ~~(Math.random()*n)
}
function randary (a) {
return a[randint(a.length)]
}
function randbytes (n) {
return crypto.randomBytes(n)
}
function track(bot, name) {
var l = 0, _ts = Date.now(), _l = 0
bot.post(function (msg) {
l++
})
setInterval(function () {
if(_l != l) {
console.log(name, l, l - _l)
_l = l
}
}, 1000).unref()
}
var alice = ssbKeys.generate()
var createSbot = require('ssb-server')
.use(require('ssb-replicate'))
.use(require('../'))
.use(require('ssb-friends'))
var timeout = 2000
var a_bot = createSbot({
temp: 'alice',
port: 45451, host: 'localhost', timeout: timeout,
replicate: {hops: 3, legacy: false},
keys: alice
})
bob = ssbKeys.generate()
console.log('address?', a_bot.getAddress())
if(!a_bot.getAddress())
throw new Error('a_bot has not address?')
var b_bot = createSbot({
temp: 'bob',
port: 45452, host: 'localhost', timeout: timeout,
replicate: {hops: 3, legacy: false},
keys: bob
})
a_bot.publish({
type:'contact',
contact: b_bot.id,
following: true
}, function () {})
track(a_bot, 'alice')
track(b_bot, 'bob')
// b_bot.post(console.log)
gen.initialize(a_bot, 50, 4, function (err, peers) {
if(err) throw err
//in this test, bob's feed is on alice,
//because bob's database corrupted (but had key backup)
peers.push(a_bot.createFeed(bob))
console.log('initialized')
//console.log(peers.map(function (e) { return e.id }))
gen.messages(function (n) {
if(Math.random() < 0.3)
return {
type: 'contact', contact: randary(peers).id,
following: true
}
return {
type: 'test',
ts: Date.now(),
random: Math.random(),
value: randbytes(randint(1024)).toString('base64')
}
}, peers, 1000, function () {
var c = 0
console.log('done, replicating')
b_bot.connect(a_bot.getAddress(), function (err) {
if(err) throw err
var int = setInterval(function () {
console.log(JSON.stringify(b_bot.status().ebt))
a_bot.getVectorClock(function (err, clock) {
b_bot.getVectorClock(function (err, _clock) {
var d = 0, total_a = 0, total_b = 0
function count (o) {
var t = 0, s = 0
for(var k in o) {
t++
s += o[k]
}
return {total: t, sum: s}
}
var c = 0
for(var k in _clock) {
total_a += _clock[k]
if(clock[k] !== _clock[k]) {
d += (clock[k] || 0) - _clock[k]
}
else
c++
}
for(var k in clock)
total_b += clock[k]
console.log('A', count(clock), 'B', count(_clock), 'diff', d, 'common', c)
if(d === 0 && c ) {
clearInterval(int)
console.log('close...')
a_bot.close()
b_bot.close()
}
})
})
},1000).unref()
})
})
})