On 7/3/07, William Kemper
I know I'm not the first person to bring this up and it seems that some work has been done: http://lists.boost.org/Archives/boost/2006/03/102350.php . Does anybody know if Felipe has posted his code somewhere? Or when we might an implementation of asynchronous file I/O in asio itself? Failing that - is there some class in the library (or examples) which would be a suitable starting point or reference/guide for creating a non-socket asynchronous I/O service? Thanks in advance.
Hi William, Unfortunately I never got to make it generic enough, with the breaking changes in asio it became even worse. Since my time to work on this have become more and more scarce I dont know when I'll have time to continue this. Just so that you know, opening files are *really* expensive, so if your requirements include working with lots of files, AIO won't help you much anyway. (::CreateFile is synchronous, and is dealt in a thread pool, which is very unoptimal). Best regards, -- Felipe Magno de Almeida