On Mon, 31 Aug 2020 at 15:01, lampahome via Boost-users <boost-users@lists.boost.org> wrote:
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 .

This is a common complaint of Asio.

If you would like to tap into a great body of knowledge and interest in asio/networking-ts you can do so by joining the #beast channel in cpplang slack 

https://cppalliance.org/slack/ 

Beast depends very heavily on Asio and we have worked to build a strong body of expertise.


 

 
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