Re: [boost] a problem on boost::asio

I'm trying asio on WindowsXPSP2 + VS2003, and I found that there are always some connections established from 127.0.0.1:xxxx to 127.0.0.1:yyyy, is it a bug?

No, it's not a bug. There is a single socket used by the implementation's select_reactor. The socket is needed to allow a blocking select() call to be interrupted. The select_reactor is used on Windows to implement async_connect as well as the scheduling deadline_timer wait operations. It's on my to-do list to implement true asynchronous connect using ConnectEx (on Windows XP, Window Server 2003 and later). When I find some time to do this, I will be able to eliminate this select_reactor use and the associated socket. Cheers, Chris