From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tierra Subject: Re: silent semantic changes with reiser4 Date: Wed, 25 Aug 2004 18:33:10 -0600 Message-ID: References: <20040824202521.GA26705@lst.de> <412CEE38.1080707@namesys.com> <20040825152805.45a1ce64.akpm@osdl.org> <112698263.20040826005146@tnonline.net> <1453698131.20040826011935@tnonline.net> <20040825163225.4441cfdd.akpm@osdl.org> <20040825233739.GP10907@legion.cup.hp.com> <20040825234629.GF2612@wiggy.net> <20040826000540.GG2612@wiggy.net> Reply-To: Tierra Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: List-Id: Content-Type: text/plain; charset="us-ascii" To: ReiserFS On Thu, 26 Aug 2004 02:05:40 +0200, Wichert Akkerman wrote: > But what for? Personally I still haven't seen a good use for them. > Apple's resource fork comes close though. There's one way where it can really come in handy, and that's with specific application file types. Certain media could be saved in a better format and read more efficiently. The reason you haven't seen this done yet though is because multiple data streams isn't a standard and isn't available in most enviroments. There also isn't any file transfer protocols that will handle transfer of multiple data streams except through Windows File Sharing. Take into account though that I have absolutely no experience or knowledge of how it all works in the backend, and don't know the implications involved in the implementation. As for applications that already use data streams, you mentioned Apple's resource fork already, so I assume you know about file types there. IIS currently uses ADS for image thumbnailing and it's also possible to hide an alternate website right inline with a public one. I've heard of a couple other applications on Windows that uses them. But you are right, none of them _appropriately_ use data streams for any specific advantage over regular files except to keep system controlled information hidden. Bryan