Re: [Boost-users] Can boost.asio read/write io of files asynchronously?

I haven't tried any of these methods, but it does provide the posix::stream_descriptor and windows::{stream,random_access}_handle classes which should be able to operate on native files. (You'll have to use a native OS-level function to open the handle/descriptor for the file and pass ownership to the ASIO object; they lack means to do the opening itself.)

Thank u. That gives me a direction. The only sad thing is very little document/examples described about this API of boost.asio .