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From Joe Orton <jor...@redhat.com>
Subject Re: [PATCH] DBD drivers as DSOs
Date Mon, 12 Mar 2007 14:00:32 GMT
On Mon, Mar 12, 2007 at 01:41:57PM +0000, Nick Kew wrote:
> On Mon, 12 Mar 2007 13:12:42 +0000
> Joe Orton <jorton@redhat.com> wrote:
> > I can't say whether it was the deliberate intent of those writing the 
> > DBD code, but the status quo is that the driver interface 
> > (apr_dbd_internal.h) is not part of the public APR-util interface.
> > So the status quo is that out-of-tree drivers are not supported.
> The intention was that apr_dbd_internal.h should be used by DBD
> drivers but opaque to applications.
> Is there a better way to express that, that'll properly support
> out-of-tree drivers?

I'd say:

1) Move the apr_dbd_internal.h header out of the private/ subdirectory
and give call it something other than "_internal.h"
2) Commit to API/ABI stability in the driver interface; stuff like
r508700 would subsequently require a major version bump
3) Enforce ABI versioning at DSO load time e.g. using magic at the
beginning of the driver structure


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