[boost] Re: Asynchronous I/O

Robert Ramey wrote:

Windows has the concept of "Overlapped I/O" which permits dispatch of an i/o request that invokes a call back when done.

Posix has aio which functions (I believe) in a similar way.

So one has the concept of asyncronous i/o without any explicit reference to threads at least at the application level.

I am not sure if I understand correctly. Just as Don I think we can't get around threads when we have callbacks. I don't know about Windows but the callback in aio (Posix) is done by creating a new thread. Boris