[PATCH v3 01/15] tools/lib/traceevent: Implemented new API tep_get_ref()

[Tzvetomir Stoyanov <tstoyanov@vmware.com>]

This patch implements new API of the tracevent library:
int tep_get_ref(struct tep_handle *pevent);
The API returns the reference counter "ref_count" of the tep handler.
As "struct tep_handle" is internal only, its members cannot be accessed
by the library users, the API is used to get the reference counter.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.c | 7 +++++++
 tools/lib/traceevent/event-parse.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index f327c990dedc..c0dd72141a44 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6774,6 +6774,13 @@ void tep_ref(struct tep_handle *pevent)
 	pevent->ref_count++;
 }
 
+int tep_get_ref(struct tep_handle *pevent)
+{
+	if (pevent)
+		return pevent->ref_count;
+	return 0;
+}
+
 void tep_free_format_field(struct tep_format_field *field)
 {
 	free(field->type);
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index cacd0b9f4807..9af316862ed4 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -583,6 +583,7 @@ struct tep_handle *tep_alloc(void);
 void tep_free(struct tep_handle *pevent);
 void tep_ref(struct tep_handle *pevent);
 void tep_unref(struct tep_handle *pevent);
+int tep_get_ref(struct tep_handle *pevent);
 
 /* access to the internal parser */
 void tep_buffer_init(const char *buf, unsigned long long size);
-- 
2.19.1