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perf data: Add perf_data__update_dir() function 

Add perf_data__update_dir() to update the size for every file within the
perf.data directory.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20190308134745.5057-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-03-08 14:47:37 +01:00 committed by Arnaldo Carvalho de Melo
parent cd3dd8dd8f
commit e8be135751
2 changed files with 21 additions and 0 deletions
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20
tools/perf/util/data.c
View File

@ -124,6 +124,26 @@ int perf_data__open_dir(struct perf_data *data)
return ret;
}
int perf_data__update_dir(struct perf_data *data)
{
int i;
if (WARN_ON(!data->is_dir))
return -EINVAL;
for (i = 0; i < data->dir.nr; i++) {
struct perf_data_file *file = &data->dir.files[i];
struct stat st;
if (fstat(file->fd, &st))
return -1;
file->size = st.st_size;
}
return 0;
}
static bool check_pipe(struct perf_data *data)
{
struct stat st;

1
tools/perf/util/data.h
View File

@ -79,4 +79,5 @@ int perf_data__switch(struct perf_data *data,
int perf_data__create_dir(struct perf_data *data, int nr);
int perf_data__open_dir(struct perf_data *data);
void perf_data__close_dir(struct perf_data *data);
int perf_data__update_dir(struct perf_data *data);
#endif /* __PERF_DATA_H */