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    SubjectRe: [PATCH -tip v4 1/5] perf-script: unify the expressions indicate "unknown"
    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 :)


    - Arnaldo

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      Last update: 2012-01-17 16:51    [W:0.022 / U:7.292 seconds]
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