Add stream_event_context accessors

[babeltrace.git] / formats / ctf / ir / stream-class.c

diff --git a/formats/ctf/ir/stream-class.c b/formats/ctf/ir/stream-class.c
index 6ccaac3c41d60eb6ae308f49e7c56a9c7514139b..edbd43b6948ab2747a6e635144dd01a53c5921b9 100644 (file)
--- a/formats/ctf/ir/stream-class.c
+++ b/formats/ctf/ir/stream-class.c
@@ -306,6 +306,47 @@ end:
        return ret;
 }
 
+struct bt_ctf_field_type *bt_ctf_stream_class_get_event_context_type(
+               struct bt_ctf_stream_class *stream_class)
+{
+       struct bt_ctf_field_type *ret = NULL;
+
+       if (!stream_class || !stream_class->event_context_type) {
+               goto end;
+       }
+
+       assert(stream_class->event_context_type);
+       bt_ctf_field_type_get(stream_class->event_context_type);
+       ret = stream_class->event_context_type;
+end:
+       return ret;
+}
+
+int bt_ctf_stream_class_set_event_context_type(
+               struct bt_ctf_stream_class *stream_class,
+               struct bt_ctf_field_type *event_context_type)
+{
+       int ret = 0;
+
+       if (!stream_class || !event_context_type || stream_class->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       if (bt_ctf_field_type_get_type_id(event_context_type) !=
+               CTF_TYPE_STRUCT) {
+               /* A packet context must be a structure */
+               ret = -1;
+               goto end;
+       }
+
+       bt_ctf_field_type_put(stream_class->event_context_type);
+       bt_ctf_field_type_get(event_context_type);
+       stream_class->event_context_type = event_context_type;
+end:
+       return ret;
+}
+
 void bt_ctf_stream_class_get(struct bt_ctf_stream_class *stream_class)
 {
        if (!stream_class) {
@@ -333,6 +374,7 @@ void bt_ctf_stream_class_freeze(struct bt_ctf_stream_class *stream_class)
 
        stream_class->frozen = 1;
        bt_ctf_field_type_freeze(stream_class->packet_context_type);
+       bt_ctf_field_type_freeze(stream_class->event_context_type);
        bt_ctf_clock_freeze(stream_class->clock);
        g_ptr_array_foreach(stream_class->event_classes,
                (GFunc)bt_ctf_event_class_freeze, NULL);
@@ -440,8 +482,9 @@ void bt_ctf_stream_class_destroy(struct bt_ctf_ref *ref)
        bt_ctf_field_type_put(stream_class->event_header_type);
        bt_ctf_field_put(stream_class->event_header);
        bt_ctf_field_type_put(stream_class->packet_context_type);
-       bt_ctf_field_type_put(stream_class->event_context_type);
-       bt_ctf_field_put(stream_class->event_context);
+       if (stream_class->event_context_type) {
+               bt_ctf_field_type_put(stream_class->event_context_type);
+       }
        g_free(stream_class);
 }