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

Is it safe to do the following in boost.asio? If it matters, I am using a serial port at the moment, but the code will be used for sockets as well. If not, what is the proper way to implement this to get full duplex communication? Thread 1: write(conn, buffer1) Thread 2: async_read(conn, buffer2)