Re: (ITS#7377) Poor libmdb error handling

[openldap-its@OpenLDAP.org]

I wrote:

> Also mdb could catch more user errors - including "cannot happen"
> mutex errors from mutex lock/unlock, since some threading user
> errors are be non-obvious from the doc.

That is, "cannot happen" when there is no user error.

> The fork() restriction needs to be documented, as does "don't
> open or close the same database twice in the same process".

Correction, "don't have the same database open twice at the same
time in the same process".