ir: add bt_ctf_field_path internal API

[babeltrace.git] / include / babeltrace / ctf-ir / event-types-internal.h

diff --git a/include/babeltrace/ctf-ir/event-types-internal.h b/include/babeltrace/ctf-ir/event-types-internal.h
index 8ae102b041e30c2b13936954603045bd717882f3..b420a5799fa0920d0d472db21b934774b6ba4d0f 100644 (file)
--- a/include/babeltrace/ctf-ir/event-types-internal.h
+++ b/include/babeltrace/ctf-ir/event-types-internal.h
@@ -41,6 +41,26 @@ typedef void (*type_freeze_func)(struct bt_ctf_field_type *);
 typedef int (*type_serialize_func)(struct bt_ctf_field_type *,
                struct metadata_context *);
 
+enum bt_ctf_node {
+       CTF_NODE_UNKNOWN = -1,
+       CTF_NODE_ENV = 0,
+       CTF_NODE_TRACE_PACKET_HEADER = 1,
+       CTF_NODE_STREAM_PACKET_CONTEXT = 2,
+       CTF_NODE_STREAM_EVENT_HEADER = 3,
+       CTF_NODE_STREAM_EVENT_CONTEXT = 4,
+       CTF_NODE_EVENT_CONTEXT = 5,
+       CTF_NODE_EVENT_FIELDS = 6,
+};
+
+struct bt_ctf_field_path {
+       enum bt_ctf_node root;
+       /*
+        * Array of integers (int) indicating the index in either
+        * structures or variants that make-up the path to a field.
+        */
+       GArray *path_indexes;
+};
+
 struct bt_ctf_field_type {
        struct bt_ctf_ref ref_count;
        struct bt_declaration *declaration;
@@ -165,6 +185,15 @@ BT_HIDDEN
 struct bt_ctf_field_type *bt_ctf_field_type_copy(
                struct bt_ctf_field_type *type);
 
+BT_HIDDEN
+struct bt_ctf_field_path *bt_ctf_field_path_create(void);
+
+BT_HIDDEN
+struct bt_ctf_field_path *bt_ctf_field_path_copy(
+               struct bt_ctf_field_path *path);
+
+BT_HIDDEN
+void bt_ctf_field_path_destroy(struct bt_ctf_field_path *path);
 
 BT_HIDDEN
 int bt_ctf_field_type_structure_get_field_name_index(