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

Subject: Re: [Boost-users] [boost.asio] Is it safe to call write() and async_read at the same time?
From: Igor R (boost.lists_at_[hidden])
Date: 2011-05-11 05:23:08

> 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)

It is safe to read from a socket, when there's a pending write. It is
not safe to access the socket object simultaniously from multiple
threads.