Re: [HACKERS] thread-safe libpq and DBD::Pg - Mailing list pgsql-interfaces

From Bruce Momjian
Subject Re: [HACKERS] thread-safe libpq and DBD::Pg
Date
Msg-id 199808092335.TAA21399@candle.pha.pa.us
Whole thread Raw
In response to Re: [HACKERS] thread-safe libpq and DBD::Pg  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-interfaces
> Bruce Momjian <maillist@candle.pha.pa.us> writes:
> > php3 uses PQoidStatus, so I can imagine great problems if we change the
> > libpq interface.  I am afraid we are stuck with char*.
>
> Yeah, I can't really see breaking applications just for a marginal
> improvement in cleanliness.
>
> There is a possible compromise however: we could leave PQcmdTuples and
> PQoidStatus defined as-is (but do something to get rid of PQoidStatus'
> use of a static return area), and add two more functions that have more
> reasonable return conventions.  The documentation could describe the
> older functions as deprecated.
>
> Perhaps the int-returning forms could be named "PQCmdTuples" and
> "PQOidStatus" (note difference in capitalization) ... unless someone
> has a better idea.
>
> Does anyone think this is worth the trouble, or shall we leave bad
> enough alone?

Perhaps we can leave the change for a time when we want to change the
libpq interface in a more significant way.  Having two functions just
seems like a waste for such a rarely-called fuction.


>
> I do intend to get rid of the static return area for PQoidStatus in any
> case.  I'd also like to fix the problem with PQconninfoOptions not being
> treated as a constant (specifically, the "val" fields are being used as
> working storage).  Is anyone aware of any applications that would be
> broken by removing "val" from the PQconninfoOption struct?
>
>             regards, tom lane
>


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