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digitalmars.D - asynchronous IO and std.stream

D's std.stream module is similar to C#'s stream architecture. For example they
share Stream, BufferedStream and FileStream (oh, and MemoryStream). The
difference is in std.stream the Readers and Writers are merged into the base
Stream. Another difference is that C# has a nice feature to do asynchronous I/O.
See for example, 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconASynchronousFileIO.asp

My question: is it worth it and is anyone willing to add this to std.stream? I
know the Win32 API supports async IO but I have no idea about Posix systems. 

Aside from async IO C# also has a CryptoStream. Any takers for that one?
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemSecurityCryptographyCryptoStreamClassTopic.asp

I think it would be nice to round out std.stream. 
-Ben
Feb 08 2005