Allocate two ports to each worker.

lib/cli.js

@@ -31,6 +31,14 @@ program
     , 'restart worker only if it stays alive for longer than this'
     , Number
     , 10000)
+  .option('--min-port <port>'
+    , 'minimum port number for worker use'
+    , Number
+    , 7400)
+  .option('--max-port <port>'
+    , 'maximum port number for worker use'
+    , Number
+    , 7800)
   .action(function() {
     var serials = cliutil.allUnknownArgs(arguments)
       , options = cliutil.lastArg(arguments)
@@ -47,16 +55,18 @@ program
     , restartThreshold: options.restartThreshold
     , restartTimeout: 1000
     , killTimeout: 10000
+    , ports: cliutil.range(options.minPort, options.maxPort)
     , filter: function(device) {
         return serials.length === 0 || serials.indexOf(device.id) !== -1
       }
-    , fork: function(device) {
+    , fork: function(device, ports) {
         var fork = require('child_process').fork
         return fork(__filename, [
           'device', device.id
         , '--provider', options.name
         , '--connect-sub', options.connectSub.join(',')
         , '--connect-push', options.connectPush.join(',')
+        , '--ports', ports.join(',')
         ])
       }
     , endpoints: {
@@ -78,6 +88,9 @@ program
   .option('-p, --connect-push <endpoint>'
     , 'push endpoint'
     , cliutil.list)
+  .option('--ports <ports>'
+    , 'ports allocated to worker'
+    , cliutil.list)
   .action(function(serial, options) {
     if (!options.connectSub) {
       this.missingArgument('--connect-sub')
@@ -88,10 +101,14 @@ program
     if (!options.provider) {
       this.missingArgument('--provider')
     }
+    if (!options.provider) {
+      this.missingArgument('--ports')
+    }
 
     require('./roles/device')({
       serial: serial
     , provider: options.provider
+    , ports: options.ports
     , endpoints: {
         sub: options.connectSub
       , push: options.connectPush