Adding __perf_session__process_dir_events function
to process events over the directory data.

All directory events are pushed into sessions ordered
data and flushed for processing.

Link: http://lkml.kernel.org/n/tip-n3zl0wo3z18tatv5x7epm...@git.kernel.org
Signed-off-by: Jiri Olsa <jo...@kernel.org>
---
 tools/perf/util/session.c | 88 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 86 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 0ec34227bd60..b55f4281b1da 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1876,8 +1876,6 @@ reader__process_events(struct reader *rd, struct 
perf_session *session,
        file_offset = page_offset;
        head = rd->data_offset - page_offset;
 
-       ui_progress__init_size(prog, data_size, "Processing events...");
-
        data_size += rd->data_offset;
 
        mmap_size = MMAP_SIZE;
@@ -2006,6 +2004,89 @@ static int __perf_session__process_events(struct 
perf_session *session)
        return err;
 }
 
+static s64 process_index(struct perf_session *session,
+                        union perf_event *event,
+                        u64 file_offset)
+{
+       struct perf_evlist *evlist = session->evlist;
+       u64 timestamp;
+       s64 ret;
+
+       if (session->header.needs_swap)
+               event_swap(event, perf_evlist__sample_id_all(evlist));
+
+       if (event->header.type >= PERF_RECORD_HEADER_MAX)
+               return -EINVAL;
+
+       events_stats__inc(&evlist->stats, event->header.type);
+
+       if (event->header.type >= PERF_RECORD_USER_TYPE_START)
+               return perf_session__process_user_event(session, event, 
file_offset);
+
+       ret = perf_evlist__parse_sample_timestamp(evlist, event, &timestamp);
+       if (ret)
+               return ret;
+
+       return ordered_events__queue(&session->ordered_events, event,
+                                    timestamp, file_offset);
+}
+
+static int __perf_session__process_dir_events(struct perf_session *session)
+{
+       struct perf_data *data = session->data;
+       struct perf_tool *tool = session->tool;
+       struct reader rd = {
+               .fd             = perf_data__fd(session->data),
+               .data_size      = session->header.data_size,
+               .data_offset    = session->header.data_offset,
+               .process        = process_simple,
+       };
+       int i, ret = 0;
+       struct ui_progress prog;
+       u64 total_size = perf_data__size(session->data);
+
+       perf_tool__fill_defaults(tool);
+
+       ui_progress__init_size(&prog, total_size, "Processing events...");
+
+       /* Read data from the header file.. */
+       ret = reader__process_events(&rd, session, &prog);
+       if (ret)
+               goto out_err;
+
+       /* ... and continue with data files. */
+       for (i = 0; i < data->dir.nr ; i++) {
+               struct perf_data_file *file = &data->dir.files[i];
+
+               if (file->size == 0)
+                       continue;
+
+               rd = (struct reader) {
+                       .fd             = file->fd,
+                       .data_size      = file->size,
+                       .data_offset    = 0,
+                       .process        = process_index,
+               };
+
+               ret = reader__process_events(&rd, session, &prog);
+               if (ret)
+                       goto out_err;
+       }
+
+       ret = ordered_events__flush(&session->ordered_events, OE_FLUSH__FINAL);
+
+out_err:
+       if (!tool->no_warn)
+               perf_session__warn_about_errors(session);
+
+       /*
+        * We may switching perf.data output, make ordered_events
+        * reusable.
+        */
+       ordered_events__reinit(&session->ordered_events);
+       return ret;
+}
+
 int perf_session__process_events(struct perf_session *session)
 {
        if (perf_session__register_idle_thread(session) < 0)
@@ -2014,6 +2095,9 @@ int perf_session__process_events(struct perf_session 
*session)
        if (perf_data__is_pipe(session->data))
                return __perf_session__process_pipe_events(session);
 
+       if (perf_data__is_dir(session->data))
+               return __perf_session__process_dir_events(session);
+
        return __perf_session__process_events(session);
 }
 
-- 
2.17.2

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