ir: add internal field path getters

[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 e7569f6fa14c1492150cf26f3c1801c6dea5e103..3adae33118f7d4f89d63b3758ef430178e316c9f 100644 (file)
--- a/include/babeltrace/ctf-ir/event-types-internal.h
+++ b/include/babeltrace/ctf-ir/event-types-internal.h
@@ -28,10 +28,10 @@
  */
 
 #include <babeltrace/ctf-writer/event-types.h>
-#include <babeltrace/ctf-writer/ref-internal.h>
 #include <babeltrace/ctf-writer/event-fields.h>
 #include <babeltrace/ctf-writer/writer.h>
 #include <babeltrace/ctf-ir/trace-internal.h>
+#include <babeltrace/ctf-ir/common-internal.h>
 #include <babeltrace/babeltrace-internal.h>
 #include <babeltrace/types.h>
 #include <babeltrace/ctf/events.h>
@@ -41,8 +41,28 @@ 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_ctf_base base;
        struct bt_declaration *declaration;
        type_freeze_func freeze;
        type_serialize_func serialize;
@@ -103,6 +123,7 @@ struct bt_ctf_field_type_variant {
        struct bt_ctf_field_type parent;
        GString *tag_name;
        struct bt_ctf_field_type_enumeration *tag;
+       struct bt_ctf_field_path *tag_path;
        GHashTable *field_name_to_index;
        GPtrArray *fields; /* Array of pointers to struct structure_field */
        struct declaration_variant declaration;
@@ -119,6 +140,7 @@ struct bt_ctf_field_type_sequence {
        struct bt_ctf_field_type parent;
        struct bt_ctf_field_type *element_type;
        GString *length_field_name;
+       struct bt_ctf_field_path *length_field_path;
        struct declaration_sequence declaration;
 };
 
@@ -165,4 +187,55 @@ 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(
+               struct bt_ctf_field_type *structure, const char *name);
+
+/* Replace an existing field's type in a structure */
+BT_HIDDEN
+int bt_ctf_field_type_structure_set_field_index(
+               struct bt_ctf_field_type *structure,
+               struct bt_ctf_field_type *field, int index);
+
+BT_HIDDEN
+int bt_ctf_field_type_variant_get_field_name_index(
+               struct bt_ctf_field_type *variant, const char *name);
+
+BT_HIDDEN
+int bt_ctf_field_type_sequence_set_length_field_path(
+               struct bt_ctf_field_type *type,
+               struct bt_ctf_field_path *path);
+
+BT_HIDDEN
+struct bt_ctf_field_path *bt_ctf_field_type_sequence_get_length_field_path(
+               struct bt_ctf_field_type *type);
+
+BT_HIDDEN
+int bt_ctf_field_type_variant_set_tag_field_path(struct bt_ctf_field_type *type,
+               struct bt_ctf_field_path *path);
+
+BT_HIDDEN
+struct bt_ctf_field_path *bt_ctf_field_type_variant_get_tag_field_path(
+               struct bt_ctf_field_type *type);
+
+BT_HIDDEN
+int bt_ctf_field_type_variant_set_tag(struct bt_ctf_field_type *type,
+               struct bt_ctf_field_type *tag);
+
+/* Replace an existing field's type in a variant */
+BT_HIDDEN
+int bt_ctf_field_type_variant_set_field_index(
+               struct bt_ctf_field_type *variant,
+               struct bt_ctf_field_type *field, int index);
+
 #endif /* BABELTRACE_CTF_IR_EVENT_TYPES_INTERNAL_H */