Messages in this thread | ![/](/images/icornerl.gif) | | From | (H. Peter Anvin) | Subject | Re: INTERFACE FIX: sendfile() | Date | 26 Oct 1998 19:40:06 GMT |
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Followup to: <priv$a6f114836$9e64c@lk9qw.mail.eon.ml.org> By author: Janos Farkas <Janos.Farkas-nouce/priv-#m92b0lQaWUZMZoWA8wbM1z6FIke@lk9qw.mail.eon.ml.org> In newsgroup: linux.dev.kernel > > On 1998-10-24 at 23:27:32, Pavel Machek wrote: > > As a solution, I propose sendfile() works on anything and it just > > falls back internaly to read()/write(). This will allow us to keep > > same interface forever. > > Hmm.. I thought sendfile(), as a non-traditional, but very sexy thing. > Yes, it's very cool, but noone should depend on it being available. And > in fact, can't; if you care about other platforms just a little bit, you > have to have a workaround anyway. It's not even in every Linux > installation, since not everyone is/will be able to update to 2.2. The > only problem I see with returning EINVAL in "random" cases is that it's > not a one-liner to keep track when to not use sendfile() again if you > would be hit by using it too much, but I never saw it as a real problem. >
Yes; if the interface supports a clean fallback in user space that is probably the best.
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