Re: Rename libpq trace internal functions

On Wed, 24 Apr 2024 09:39:02 +0200
Peter Eisentraut <peter(at)eisentraut(dot)org> wrote:

> libpq's pqTraceOutputMessage() used to look like this:
>
> case 'Z': /* Ready For Query */
> pqTraceOutputZ(conn->Pfdebug, message, &logCursor);
> break;
>
> Commit f4b54e1ed98 introduced macros for protocol characters, so now
> it looks like this:
>
> case PqMsg_ReadyForQuery:
> pqTraceOutputZ(conn->Pfdebug, message, &logCursor);
> break;
>
> But this introduced a disconnect between the symbol in the switch case
> and the function name to be called, so this made the manageability of
> this file a bit worse.
>
> This patch changes the function names to match, so now it looks like
> this:
>
> case PqMsg_ReadyForQuery:
> pqTraceOutput_ReadyForQuery(conn->Pfdebug, message, &logCursor);
> break;

+1

I prefer the new function names since it seems more natural and easier to read.

I noticed pqTraceOutputNR() is left as is, is this intentional? Or, shoud this
be changed to pqTranceOutput_NoticeResponse()?

Regards,
Yugo Nagata

> (This also improves the readability of the file in general, since some
> function names like "pqTraceOutputt" were a little hard to read
> accurately.)
>
> Some protocol characters have different meanings to and from the
> server. The old code structure had a common function for both, for
> example, pqTraceOutputD(). The new structure splits this up into
> separate ones to match the protocol message name, like
> pqTraceOutput_Describe() and pqTraceOutput_DataRow().

--
Yugo NAGATA <nagata(at)sraoss(dot)co(dot)jp>