Send heartbeats from the provider. This keeps unauthorized and offline devices present as well, which is what we want. This also greatly reduces the number of queries to rethinkdb.

lib/roles/processor.js

@@ -33,6 +33,10 @@ module.exports = function(options) {
   })
 
   devDealer.on('message', wirerouter()
+    // Provider messages
+    .on(wire.ProviderHeartbeatMessage, function(channel, message) {
+      dbapi.updateProviderHeartbeat(message.channel)
+    })
     // Initial device message
     .on(wire.DevicePresentMessage, function(channel, message, data) {
       dbapi.saveDevice(message.serial, message)
@@ -66,9 +70,6 @@ module.exports = function(options) {
         })
     })
     // Worker messages
-    .on(wire.DeviceHeartbeatMessage, function(channel, message) {
-      dbapi.updateDeviceHeartbeat(message.serial)
-    })
     .on(wire.JoinGroupMessage, function(channel, message, data) {
       dbapi.setDeviceOwner(message.serial, message.owner)
       appDealer.send([channel, data])