Re: Progress reporting for pg_verify_checksums

Hi,

Am Dienstag, den 19.03.2019, 09:04 +0900 schrieb Kyotaro HORIGUCHI:
> At Mon, 18 Mar 2019 23:14:01 +0100 (CET), Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> wrote in <alpine(dot)DEB(dot)2(dot)21(dot)1903182311130(dot)23282(at)lancre>
> > >>> +     /* we handle SIGUSR1 only, and toggle the value of show_progress
> > >>> */
> > >>> +     if (signum == SIGUSR1)
> > >>> +             show_progress = !show_progress;
> > >>
> > >> SIGUSR1 *toggles* progress.
> > >
> > > Not sure what you mean here,
> >
> > Probably it is meant to simplify the comment?
>
> Sorry. I meant that "it can be turned off and a perhaps-garbage
> line is left alone after turning off. Don't we need to erase it?".

The current version prints a newline when it progress reporting is
toggled off. Do you mean there is a hazard that this happens right when
we are printing the progress, so end up with a partly garbage line? I
don't think that'd be so bad to warrant further code complexitiy, after
all, the user explicitly wanted the progress to stop.

But maybe I am misunderstanding?

Michael

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