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SubjectRe: [PATCH -tip v4 1/5] perf-script: unify the expressions indicate "unknown"
(2012/01/18 0:49), Arnaldo Carvalho de Melo wrote:
> Em Mon, Jan 16, 2012 at 02:22:10PM +0900, Akihiro Nagai escreveu:
>> perf-script uses various expressions to indicate "unknown".
>> It is unfriendly for user scripts to parse it. So, this patch unifies
>> the expressions to "[unknown]".
>> diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
>> @@ -118,6 +118,7 @@ void map__delete(struct map *self);
>> size_t map__fprintf(struct map *self, FILE *fp);
>> +void map__print_dsoname(struct map *self);
> See map__fprintf(), everything that is for printing to a file like
> output has that form: last paramenter is a FILE pointer, then users do:
> map__fprintf_dsoname(map, stdout);
> or to stderr, or to something else, like in cases where tools have a
> 'strace -o FILENAME' like switch, like 'perf stat --log-fd N':
> OPT_INTEGER(0, "log-fd",&output_fd,
> "log output to fd, instead of stderr"),
> That uses fdreopen(output_fd), etc.
> So please convert these new __print_something methods to
> __fprintf_something(..., FILE *fp).
> Also please don't use 'self' anymore, that was a bad decision I made in
> perf's early ages and that Thomas Gleixner suggested we use more
> descriptive names such as, in the above case, 'map', i.e.:
> void map__fprintf_dsoname(struct map *map, FILE *fp);
>> From time to time I convert these 'self' leftovers in areas where I
> notice that are not having too much coding activity, to avoid clashing
> with pending patches, so lets not add more in new code :)
I see. I'm going to fix and resend my patches,
e.g. map__print_dsoname(self) => map__fprintf_dsoname(map, fp)

Thank you.
> Thanks,
> - Arnaldo

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