Re: [Boost-users] [boost.asio] Is it safe to call write() and async_read at the same time?

So clearly, the "Shared objects: Unsafe" does not tell the whole story. I also have yet to see an example where async_read/write's that could be could called simultaneously are surrounded by mutexes. It would be really nice to get a clear answer on whether these methods are thread safe or not.

I absolutely agree. But as long as we don't have such answers, imho, it's worth using safer techniques to prevent unexpected behavior.