RE: libpq debug log

From: "Iwata, Aya" <iwata(dot)aya(at)jp(dot)fujitsu(dot)com>
To: "Jamison, Kirk" <k(dot)jamison(at)jp(dot)fujitsu(dot)com>
Cc: "tgl(at)sss(dot)pgh(dot)pa(dot)us" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "robertmhaas(at)gmail(dot)com" <robertmhaas(at)gmail(dot)com>, "pchampion(at)pivotal(dot)io" <pchampion(at)pivotal(dot)io>, "jdoty(at)pivotal(dot)io" <jdoty(at)pivotal(dot)io>, "raam(dot)soft(at)gmail(dot)com" <raam(dot)soft(at)gmail(dot)com>, "Nagaura, Ryohei" <nagaura(dot)ryohei(at)fujitsu(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, "nagata(at)sraoss(dot)co(dot)jp" <nagata(at)sraoss(dot)co(dot)jp>, "kommi(dot)haribabu(at)gmail(dot)com" <kommi(dot)haribabu(at)gmail(dot)com>, "peter(dot)eisentraut(at)2ndquadrant(dot)com" <peter(dot)eisentraut(at)2ndquadrant(dot)com>, 'Kyotaro HORIGUCHI' <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>
Subject: RE: libpq debug log
Date: 2019-04-26 03:55:30
Message-ID: 71E660EB361DF14299875B198D4CE5423DF363AF@g01jpexmbkw25
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Hi Kirk,

Thank you for your reviewing.

> Docs:
> It would be better to have reference to the documentations of Frontend/Backend
> Protocol's "Message Format".
I added a link to "Protocol's Message Formats" and little explanation to PQtrace() documentation.

> Code:
> There are some protocol message types from frontend that you missed indicating
> (non BYTE1 types):
> CancelRequest (F), StartupMessage (F), SSLRequest (F).
>
> Although I haven't tested those actual protocols, I assume it will be printed
> as the following since the length and message will still be recognized.
> ex. Timestamp 8 80877103
>
> So you need to indicate these protocol message types as intended.
> ex. Timestamp > SSLRequest 8 80877103
Thank you. I changed code to output these information.
For that, I added code to check the int32 content which StartupMessage (F) and SSLRequest (F) have.
And CancelRequest is not targeted because it calls send() directly.

Regards,
Aya Iwata

Attachment Content-Type Size
v4-libpq-PQtrace-output-one-line.patch application/octet-stream 20.9 KB

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