Reaper decides if a device is present or not. Allows devices to "come back to life" if they start beating again.

lib/units/reaper/index.js

@@ -56,7 +56,17 @@ module.exports = function(options) {
     lifecycle.fatal()
   })
 
-  ttlset.on('timeout', function(serial) {
+  ttlset.on('insert', function(serial) {
+    log.info('Device "%s" is present', serial)
+    push.send([
+      wireutil.global
+    , wireutil.envelope(new wire.DevicePresentMessage(
+        serial
+      ))
+    ])
+  })
+
+  ttlset.on('drop', function(serial) {
     log.info('Reaping device "%s" due to heartbeat timeout', serial)
     push.send([
       wireutil.global
@@ -73,7 +83,7 @@ module.exports = function(options) {
           .then(function(list) {
             var now = Date.now()
             list.forEach(function(device) {
-              ttlset.bump(device.serial, now)
+              ttlset.bump(device.serial, now, TtlSet.SILENT)
             })
           })
       })
@@ -81,14 +91,14 @@ module.exports = function(options) {
 
   function listenToChanges() {
     sub.on('message', wirerouter()
-      .on(wire.DevicePresentMessage, function(channel, message) {
+      .on(wire.DeviceIntroductionMessage, function(channel, message) {
         ttlset.bump(message.serial, Date.now())
       })
       .on(wire.DeviceHeartbeatMessage, function(channel, message) {
         ttlset.bump(message.serial, Date.now())
       })
       .on(wire.DeviceAbsentMessage, function(channel, message) {
-        ttlset.drop(message.serial)
+        ttlset.drop(message.serial, TtlSet.SILENT)
       })
       .handler())
   }