From: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> |
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To: | tsunakawa(dot)takay(at)fujitsu(dot)com |
Cc: | iwata(dot)aya(at)fujitsu(dot)com, k(dot)jamison(at)fujitsu(dot)com, alvherre(at)alvh(dot)no-ip(dot)org, pgsql-hackers(at)lists(dot)postgresql(dot)org |
Subject: | Re: libpq debug log |
Date: | 2021-02-26 08:30:32 |
Message-ID: | 20210226.173032.106337339140685280.horikyota.ntt@gmail.com |
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Lists: | pgsql-hackers |
At Fri, 26 Feb 2021 16:12:39 +0900 (JST), Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> wrote in
> This inhibits logCursor being updated. What is worse, I find that
> logCursor movement is quite dubious.
Using (inCursor - inStart) as logCursor doesn't work correctly if
tracing state desyncs. Once desync happens inStart can be moved at
the timing that the tracing code doesn't expect. This requires (as I
mentioned upthread) pqReadData to actively reset logCursor, though.
logCursor should move when bytes are fed to the tracing functoins even
when theyare the last bytes of a message.
regards.
--
Kyotaro Horiguchi
NTT Open Source Software Center
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