Useless Factor

I've been working at RethinkDB for the past month. My project has been to convert the code base from using callbacks for asynchronous I/O—essentially continuation-passing style—to a more natural style of concurrency using coroutines. You can read about my progress on the RethinkDB blog:

• Improving a large C++ project with coroutines
• Making coroutines fast
• Handling stack overflow on custom stacks