1 /*
2  * Copyright (c) Meta Platforms, Inc. and affiliates.
3  *
4  * This source code is licensed under the MIT license found in the
5  * LICENSE file in the root directory of this source tree.
6  */
7 
8 #pragma once
9 
10 #include <condition_variable>
11 #include <functional>
12 #include <mutex>
13 
14 namespace ABI48_0_0facebook {
15 namespace ABI48_0_0React {
16 
17 class MessageQueueThread {
18  public:
~MessageQueueThread()19   virtual ~MessageQueueThread() {}
20   virtual void runOnQueue(std::function<void()> &&) = 0;
21   // runOnQueueSync and quitSynchronous are dangerous.  They should only be
22   // used for initialization and cleanup.
23   virtual void runOnQueueSync(std::function<void()> &&) = 0;
24   // Once quitSynchronous() returns, no further work should run on the queue.
25   virtual void quitSynchronous() = 0;
26 };
27 
28 } // namespace ABI48_0_0React
29 } // namespace ABI48_0_0facebook
30