It is called by a special child process of the postmaster after a
signal. Search for PMSIGNAL_DO_CHECKPOINT in xlog.c and in postmaster.c.
The checkpoint process gets started out of sigusr1_handler().
On Sat, 2002-08-31 at 23:27, Bruce Momjian wrote:
> I am trying to find when WAL log files are rotated. The message is:
>
> 2002-02-11 21:18:13 DEBUG: recycled transaction log file 0000000000000005
>
> and it is printed in MoveOfflineLogs(), and MoveOfflineLogs() is only
> called by CreateCheckPoint(), but I can't see where CreateCheckPoint()
> is called in normal operation. I see it called by CHECKPOINT, and on
> startup and shutdown, and from bootstrap, but where is it called during
> normal backend operation.
>
> --
> Bruce Momjian | http://candle.pha.pa.us
> pgman@candle.pha.pa.us | (610) 359-1001
> + If your life is a hard drive, | 13 Roberts Road
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--
J. R. Nield
jrnield@usol.com
