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SubjectRe: [PATCH 2/3] perf test: Cleanup daemon if test is interrupted.
On Thu, Mar 11, 2021 at 2:38 AM Jiri Olsa <jolsa@redhat.com> wrote:
>
> On Wed, Mar 10, 2021 at 12:41:17PM -0800, Ian Rogers wrote:
> > Reorder daemon_start and daemon_exit as the trap handler is added in
> > daemon_start referencing daemon_exit.
>
> makes sense, minor comments below
>
> >
> > Signed-off-by: Ian Rogers <irogers@google.com>
> > ---
> > tools/perf/tests/shell/daemon.sh | 34 +++++++++++++++++++-------------
> > 1 file changed, 20 insertions(+), 14 deletions(-)
> >
> > diff --git a/tools/perf/tests/shell/daemon.sh b/tools/perf/tests/shell/daemon.sh
> > index 66ad56b4e0a5..a02cedc76de6 100755
> > --- a/tools/perf/tests/shell/daemon.sh
> > +++ b/tools/perf/tests/shell/daemon.sh
> > @@ -98,6 +98,23 @@ check_line_other()
> > fi
> > }
> >
> > +daemon_exit()
> > +{
> > + local config=$1
> > +
> > + local line=`perf daemon --config ${config} -x: | head -1`
> > + local pid=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $1 }'`
> > +
> > + # Reset trap handler.
> > + trap - SIGINT SIGTERM
>
> please keep the 'tabs' in here
>
> > +
> > + # stop daemon
> > + perf daemon stop --config ${config}
> > +
> > + # ... and wait for the pid to go away
> > + tail --pid=${pid} -f /dev/null
> > +}
> > +
> > daemon_start()
> > {
> > local config=$1
> > @@ -105,6 +122,9 @@ daemon_start()
> >
> > perf daemon start --config ${config}
> >
> > + # Clean up daemon if interrupted.
> > + trap "daemon_exit ${config}; exit 4" SIGINT SIGTERM
>
> ditto, plus let's document exit values somewhere in comments,
> I think the next patch is adding exit 62, so that one as well

Thanks, it might be easier to just have these as exit 1 - I pulled
values from the errno list. Do you have any preferences?

Ian

> thanks,
> jirka
>
> > +
> > # wait for the session to ping
> > local state="FAIL"
> > while [ "${state}" != "OK" ]; do
> > @@ -113,20 +133,6 @@ daemon_start()
> > done
> > }
> >
> > -daemon_exit()
> > -{
> > - local config=$1
> > -
> > - local line=`perf daemon --config ${config} -x: | head -1`
> > - local pid=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $1 }'`
> > -
> > - # stop daemon
> > - perf daemon stop --config ${config}
> > -
> > - # ... and wait for the pid to go away
> > - tail --pid=${pid} -f /dev/null
> > -}
> > -
> > test_list()
> > {
> > echo "test daemon list"
> > --
> > 2.30.1.766.gb4fecdf3b7-goog
> >
>

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