On 18 April 2011 17:48, Mike Meyer <m...@mired.org> wrote: > On Mon, 18 Apr 2011 17:07:53 +0100 > Colin Adams <colinpaulad...@googlemail.com> wrote: > > On 18 April 2011 16:54, Ertugrul Soeylemez <e...@ertes.de> wrote: > > > > > > > > > > > > > Well, *someone* has to worry about robustness and scalability. Users > > > > notice when their two minute system builds start taking four minutes > > > > (and will be at my door wanting me to fix it) because something > didn't > > > > scale fast enough, or have to be run more than once because a failing > > > > component build wasn't restarted properly. I'm willing to believe > that > > > > haskell lets you write more scalable code than C, but C's tools for > > > > handling concurrency suck, so that should be true in any language > > > > where someone actually thought about dealing with concurrency beyond > > > > locks and protected methods. The problem is, the only language I've > > > > found where that's true that *also* has reasonable tools to deal with > > > > scaling beyond a single system is Eiffel (which apparently abstracts > > > > things even further than haskell - details like how concurrency is > > > > achieved or how many concurrent operations you can have are > configured > > > > when you start an application, *not* when writing it). Unfortunately, > > > > Eiffel has other problems that make it undesirable. > > > > > > I can't make a comparison, because I don't know Eiffel. > > > > I do, and I don't recognize what the OP is referring to - I suspect he > meant > > Erlang. > > No, I meant Eiffel. In particular, the Simple Concurrent Object > Oriented Programming system was described in OOSC but is "not yet part > of the official standard" (one of those "other problems" I > mentioned). >
SCOOP has yet to be implemented in a released compiler. Eiffel Software are currently incorporating into version 6.8, which will be released in a month or two. Note there is known to be an overhead associated with this level of abstraction. -- Colin Adams Preston, Lancashire, ENGLAND () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments
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