Em Thu, Nov 26, 2020 at 06:00:21PM +0100, Jiri Olsa escreveu: > Adding is_perf_data function that returns true if > the given path is perf data file. It will be used > in following patches.
Thanks, applied. - Arnaldo > Acked-by: Ian Rogers <[email protected]> > Signed-off-by: Jiri Olsa <[email protected]> > --- > tools/perf/util/data.c | 19 +++++++++++++++++++ > tools/perf/util/data.h | 1 + > 2 files changed, 20 insertions(+) > > diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c > index 05bbcb663c41..f29af4fc3d09 100644 > --- a/tools/perf/util/data.c > +++ b/tools/perf/util/data.c > @@ -492,3 +492,22 @@ char *perf_data__kallsyms_name(struct perf_data *data) > > return kallsyms_name; > } > + > +bool is_perf_data(const char *path) > +{ > + bool ret = false; > + FILE *file; > + u64 magic; > + > + file = fopen(path, "r"); > + if (!file) > + return false; > + > + if (fread(&magic, 1, 8, file) < 8) > + goto out; > + > + ret = is_perf_magic(magic); > +out: > + fclose(file); > + return ret; > +} > diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h > index c563fcbb0288..62a3e66fbee8 100644 > --- a/tools/perf/util/data.h > +++ b/tools/perf/util/data.h > @@ -98,4 +98,5 @@ int perf_data__update_dir(struct perf_data *data); > unsigned long perf_data__size(struct perf_data *data); > int perf_data__make_kcore_dir(struct perf_data *data, char *buf, size_t > buf_sz); > char *perf_data__kallsyms_name(struct perf_data *data); > +bool is_perf_data(const char *path); > #endif /* __PERF_DATA_H */ > -- > 2.26.2 > -- - Arnaldo
