[boost] Re: Re: Asynchronous I/O

From: Boris (boris_at_[hidden])
Date: 2005-03-29 08:30:24

Caleb Epstein wrote:
> On Fri, 18 Mar 2005 18:03:50 -0500, Edward Diener
> <eddielee_at_[hidden]> wrote:
>
>> Obviously Boost has a thread library, although I have not used it,
>> and it has a callback mechanism in boost::function<> which I have
>> used extensively, so designing an asynchronous I/O library around
>> these two concepts seems like a good design to me.
>
> I'd say coupling asynchronous I/O to multi-threading would be a
> mistake.  It is at its most useful IMHO in single-threaded cases.

I just want to add this link which has a very good overview about how 
asynchronicity works in .NET:
http://blogs.msdn.com/cbrumme/archive/2003/05/06/51385.aspx

It explains the four ways to do asynchronous operations in .NET:
1) callback
2) polling for completion
3) waiting for completion
4) calling the asynchronous operation a second time and then wait (somehow 
comparable to waiting for completion)

Boris