[erlang-questions] process trace triggered by sequential trace token

Dmitriy Kargapolov <>
Wed Feb 2 17:40:22 CET 2011


Kaiduan,
I'd like to trace function calls (per match specs) in the body (callback) of
gen_server for particular call to this gen_server. I'd like to do this on
existing code, meaning no code alteration should be done to this gen_server
process. If this is what you were able to do, would you please share your
experience?
Thank you.

On Wed, Feb 2, 2011 at 11:07 AM, Kaiduan Xie <> wrote:

> Sorry for hitting wrong key.
>
> I have successfully traced a particular call from user A to user B
> based on the headers in SIP message in a system that has many
> concurrent calls using sequential trace. I do not know if this is what
> you want.
>
> Best regards,
>
> /Kaiduan
>
> On Wed, Feb 2, 2011 at 11:04 AM, Kaiduan Xie <> wrote:
> > Dimitriy,
> >
> > I
> >
> > On Wed, Feb 2, 2011 at 10:04 AM, Dmitriy Kargapolov
> > <> wrote:
> >> Hi All,
> >> I'd like to trace gen_server body execution, not for all calls, but for
> >> particular one.
> >> Is there a way to enable trace for the process by received (and matched)
> >> message "contaminated" by trace token? (And disable it at the end of
> message
> >> processing). I know there is a way to turn sequential trace by matching
> >> regular function call, but I need things to go in reverse order...
> >> Thanks.
> >>
> >
>


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