Adding is_perf_data function that returns true if the given path is perf data file. It will be used in following patches.
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
