Question

I understood that calling boost::asio::ip::tcp::socket::async_receive (or boost::asio::ip::tcp::socket::async_send) two times may result in a bad behavior..
Is it OK if i call boost::asio::ip::tcp::socket::async_recive and boost::asio::ip::tcp::socket::async_send at the same time?

I am going to have 2 or more threads running the boost::asio::run so you need to take that into account..

Thanks

Answer 1

This has to be OK. How else would you perform full duplex async communications on a single service? You need a receive outstanding at all times for incoming data.

The Boost docs indicate only that each of async_read and async_write must be called serially. For example, for async_read:

The program must ensure that the
stream performs no other read
operations (such as async_read, the
stream’s async_read_some function, or
any other composed operations that
perform reads) until this operation
completes.

The docs for socket are not specific on this point, it’s true.