Fix platform update logic

src/apptaskmanager.js

@@ -1,7 +1,6 @@
 'use strict';
 
 exports = module.exports = {
-    initializeSync: initializeSync,
     scheduleTask: scheduleTask
 };
 
@@ -16,6 +15,7 @@ let assert = require('assert'),
 
 let gActiveTasks = { }; // indexed by app id
 let gPendingTasks = [ ];
+let gInitialized = false;
 
 const TASK_CONCURRENCY = 3;
 const NOOP_CALLBACK = function (error) { if (error) debug(error); };
@@ -28,12 +28,19 @@ function waitText(lockOperation) {
     return ''; // cannot happen
 }
 
+function initializeSync() {
+    gInitialized = true;
+    locker.on('unlocked', startNextTask);
+}
+
 // callback is called when task is finished
 function scheduleTask(appId, taskId, callback) {
     assert.strictEqual(typeof appId, 'string');
     assert.strictEqual(typeof taskId, 'string');
     assert.strictEqual(typeof callback, 'function');
 
+    if (!gInitialized) initializeSync();
+
     if (appId in gActiveTasks) {
         return callback(new Error(`Task for %s is already active: ${appId}`));
     }
@@ -77,6 +84,3 @@ function startNextTask() {
     scheduleTask(t.appId, t.taskId, t.callback);
 }
 
-function initializeSync() {
-    locker.on('unlocked', startNextTask);
-}