Move files to flipper-common

Summary: Moved Logger, sleep, timeout and server contract types to flipper-common packages.

Reviewed By: passy

Differential Revision: D31475790

fbshipit-source-id: 42d2147698875f9e919ad5250f9953f3bff3ec2d

desktop/flipper-common/src/utils/sleep.tsx

@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+export async function sleep(ms: number): Promise<void> {
+  return new Promise((resolve) => {
+    setTimeout(resolve, ms);
+  });
+}

desktop/flipper-common/src/utils/timeout.tsx

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {sleep} from './sleep';
+
+export function timeout<T>(
+  ms: number,
+  promise: Promise<T>,
+  timeoutMessage?: string,
+): Promise<T> {
+  // Create a promise that rejects in <ms> milliseconds
+  const timeout = sleep(ms).then(() => {
+    throw new Error(timeoutMessage || `Timed out in ${ms} ms.`);
+  });
+
+  // Returns a race between our timeout and the passed in promise
+  return Promise.race([promise, timeout]);
+}