Storage Service Write: Improved conflict handling

ts/util/JobQueue.ts

@@ -0,0 +1,14 @@
+import PQueue from 'p-queue';
+import createTaskWithTimeout from '../textsecure/TaskWithTimeout';
+
+function createJobQueue(label: string) {
+  const jobQueue = new PQueue({ concurrency: 1 });
+
+  return (job: () => Promise<void>, id = '') => {
+    const taskWithTimeout = createTaskWithTimeout(job, `${label} ${id}`);
+
+    return jobQueue.add(taskWithTimeout);
+  };
+}
+
+export const storageJobQueue = createJobQueue('storageService');