socketvat

EventVat + nssocket

install

• install node
• npm install socketvat
• npm test socketvat
• DEBUG=socketvat,test npm test socketvat

api

sv = socketvat(opts)

• instanceof sv === require('eventvat')
• opts.namespace - default: socketvat - will be used to prefix every event which will be sent to remote socket, also it will only listen for remote events prefixed by that namespace

sv.initSocket(<socket>[,<cb>])

<socket> has to be an instance of require('nssocket').NsSocket

var nss = require('nssocket')
var sv = require('socketvat')
var serverVat = sv()
var clientVat = sv()
var s = nss.createServer(function(s){serverVat.initSocket(s)})
s.listen(4545)
var c = new nss.NsSocket()
clientVat.initSocket(c)
c.connect(4545)

sv.listen(<arg1>[,<arg2>[,<arg3>]],[<listener>])

this will start a net or tls-Server

• <arg1>, <arg2>, <arg3>

  • Int → port
  • String → host (or path if no port is defined, start a unix-socket-server)
  • Object
    • port → port
    • host → host
    • key → start tls-Server with that key
    • cert → start tls-Server with that cert
    • ca → start tls-Server with that ca

• <listener>

  • Function → connection-listener, will be called with 2 arguments:
    • a object with helper-functions for communication with remote socketvat
    • an instance of require('nssocket').NsSocket

sv.connect(<arg1>[,<arg2>[,<arg3>]],[<listener>])

this will create a net or tls-Connection

• <arg1>, <arg2>, <arg3>

  • Int → port
  • String → host (or path if no port is defined, start a unix-socket-connection)
  • Object
    • port → port
    • host → host
    • key → start tls-Connection with that key
    • cert → start tls-Connection with that cert
    • reconnect → upon connection -drop or -error, connect again in opts.reconnect milliseconds

• <listener>

  • Function → connection-listener, will be called with 2 arguments:
    • a object with helper-functions for communication with remote socketvat
    • an instance of require('nssocket').NsSocket

examples

simple

var sv = require('../socketvat')
var assert = require('assert')
// server
var s = sv()
s.set('foo','server')
s.listen(3000,function(remote,socket){
  remote.once('get',function(k,v){
    assert.equal(k,'foo')
    assert.equal(v,'client')
  })
  remote.get('foo')
})
// client
var c = sv()
c.set('foo','client')
c.connect(3000,function(remote,socket){
  remote.once('get',function(k,v){
    assert.equal(k,'foo')
    assert.equal(v,'server')
  })
  remote.get('foo')
})

verbose

var sv = require('../socketvat')
 
var serverVat = sv()
var server = serverVat.listen(3000,function(r,s){
  r.onAny(ee2log('serverRemote'))
  s.onAny(ee2log('serverSocket'))
  s.on('error',function(err){console.log('socket error',err)})
  s.on('close',function(){
    console.log('---- client disconnected')
    server.close()
    process.exit()
  })
  r.set('server','x')
})
 
var clientVat = sv()
var client = clientVat.connect(3000,function(r,s){
  r.onAny(ee2log('clientRemote'))
  s.onAny(ee2log('clientSocket'))
  r.set('client','y',function(err){console.log('---- sent the message')})
  r.get('client')
  r.keys('client')
  setTimeout(function(){s.end()},100)
})
 
serverVat.on('**',ee2log('serverVat'))
serverVat.once('set client',function(){
  console.log('---- serverVat once "set client":',this.event,'→',[].slice.call(arguments))
})
 
clientVat.on('**',ee2log('clientVat'))
clientVat.once('set *',function(){
  console.log('---- clientVat once "set *":',this.event,'→',[].slice.call(arguments))
})
 
serverVat.set('foo','bar')
clientVat.set('foo','bar')
 
function ee2log(name){return function(){
  name = name || '•'
  name = name+Array(13).slice(name.length).join(' ')
  var event = Array.isArray(this.event) ? this.event.join(' ') : this.event
  event = event+Array(32).slice(event.length).join(' ')
  console.log(name,':',event,'→',[].slice.call(arguments))
}}

output:

serverVat    : set foo                         → [ 'bar' ]
serverVat    : set                             → [ 'foo', 'bar' ]
---- clientVat once "set *": set foo → [ 'bar' ]
clientVat    : set foo                         → [ 'bar' ]
clientVat    : set                             → [ 'foo', 'bar' ]
clientSocket : start                           → []
---- sent the message
serverSocket : start                           → []
serverSocket : data socketvat method onAny     → [ { args: [] } ]
serverSocket : data socketvat method set       → [ { args: [ 'client', 'y' ] } ]
---- serverVat once "set client": set client → [ 'y' ]
serverVat    : set client                      → [ 'y' ]
serverVat    : set                             → [ 'client', 'y' ]
serverSocket : data socketvat method get       → [ { args: [ 'client' ] } ]
serverVat    : get client                      → [ 'y' ]
serverVat    : get                             → [ 'client', 'y' ]
serverSocket : data socketvat method keys      → [ { args: [ 'client' ] } ]
serverVat    : keys                            → [ /client/, [ 'client' ] ]
clientSocket : data socketvat method onAny     → [ { args: [] } ]
clientSocket : data socketvat method set       → [ { args: [ 'server', 'x' ] } ]
clientVat    : set server                      → [ 'x' ]
clientVat    : set                             → [ 'server', 'x' ]
clientSocket : data socketvat event set client → [ { args: [ 'y' ] } ]
clientRemote : set client                      → [ 'y' ]
clientSocket : data socketvat event set        → [ { args: [ 'client', 'y' ] } ]
clientRemote : set                             → [ 'client', 'y' ]
clientSocket : data socketvat event get client → [ { args: [ 'y' ] } ]
clientRemote : get client                      → [ 'y' ]
clientSocket : data socketvat event get        → [ { args: [ 'client', 'y' ] } ]
clientRemote : get                             → [ 'client', 'y' ]
clientSocket : data socketvat event keys       → [ { args: [ 'client', [Object] ] } ]
clientRemote : keys                            → [ 'client', [ 'client' ] ]
serverSocket : data socketvat event set server → [ { args: [ 'x' ] } ]
serverRemote : set server                      → [ 'x' ]
serverSocket : data socketvat event set        → [ { args: [ 'server', 'x' ] } ]
serverRemote : set                             → [ 'server', 'x' ]
clientSocket : close                           → [ undefined ]
serverSocket : close                           → []
---- client disconnected