[PATCH 31/54] perf record: Introduce record__finish_output() to finish a perf.data

From: Wang Nan
Date: Mon Jan 25 2016 - 05:06:14 EST


Move code for finalizing 'perf.data' to record__finish_output(). It
will be used by following commits to split output to multiple files.

Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>
Signed-off-by: He Kuang <hekuang@xxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Zefan Li <lizefan@xxxxxxxxxx>
Cc: pi3orama@xxxxxxx
---
tools/perf/builtin-record.c | 37 +++++++++++++++++++++++++------------
1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 19e5046..dc7fb4d 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -501,6 +501,29 @@ static void record__init_features(struct record *rec)
perf_header__clear_feat(&session->header, HEADER_STAT);
}

+static void
+record__finish_output(struct record *rec)
+{
+ struct perf_data_file *file = &rec->file;
+ int fd = perf_data_file__fd(file);
+
+ if (file->is_pipe)
+ return;
+
+ rec->session->header.data_size += rec->bytes_written;
+ file->size = lseek(perf_data_file__fd(file), 0, SEEK_CUR);
+
+ if (!rec->no_buildid) {
+ process_buildids(rec);
+
+ if (rec->buildid_all)
+ dsos__hit_all(rec->session);
+ }
+ perf_session__write_header(rec->session, rec->evlist, fd, true);
+
+ return;
+}
+
static volatile int workload_exec_errno;

/*
@@ -828,18 +851,8 @@ out_child:
/* this will be recalculated during process_buildids() */
rec->samples = 0;

- if (!err && !file->is_pipe) {
- rec->session->header.data_size += rec->bytes_written;
- file->size = lseek(perf_data_file__fd(file), 0, SEEK_CUR);
-
- if (!rec->no_buildid) {
- process_buildids(rec);
-
- if (rec->buildid_all)
- dsos__hit_all(rec->session);
- }
- perf_session__write_header(rec->session, rec->evlist, fd, true);
- }
+ if (!err)
+ record__finish_output(rec);

if (!err && !quiet) {
char samples[128];
--
1.8.3.4