Subject: Re: OpenVPN
To: None <>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
List: tech-net
Date: 05/13/2006 23:11:34
>> -                if (error == EPIPE)
>> -                        psignal(p, SIGPIPE);
>> +                if ((error == EPIPE) && !(flags & MSG_NOSIGNAL))
>> +                        psignal(p, SIGPIPE);
> If you do this, you would have version compatibility issues.

Only for new code that actually has a use for the feature.

> Maybe a nice additional feature, but increases the burden on the app
> space to be compatible between versions that do and don't support
> this.

...or to blow off compatability with versions that don't.

Yes.  And?

This is true of *any* new API.  Whether this particular innovation is
worth trying is perhaps arguable.  But I don't think there's really
much question over whether innovation in general is worth doing, and
you can't do a new API without exactly this kind of backward
compatability issue.

In this case, furthermore, the innovation has already happened and has
already made it into application code - that's what started the thread
off.  So doing this wouldn't even be innovating!

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