lib: add user attributes property to metadata, stream, and trace objects

[babeltrace.git] / src / lib / trace-ir / trace-class.c

diff --git a/src/lib/trace-ir/trace-class.c b/src/lib/trace-ir/trace-class.c
index 78265b415d8099a51dd5d23dd3e6f897e6c552bc..cd5d6f829563a77dfe947950afe5e90b7aabe680 100644 (file)
--- a/src/lib/trace-ir/trace-class.c
+++ b/src/lib/trace-ir/trace-class.c
@@ -53,6 +53,7 @@
 #include "stream.h"
 #include "trace.h"
 #include "utils.h"
+#include "lib/value.h"
 #include "lib/func-status.h"
 
 struct bt_trace_class_destruction_listener_elem {
@@ -69,6 +70,8 @@ void destroy_trace_class(struct bt_object *obj)
        struct bt_trace_class *tc = (void *) obj;
 
        BT_LIB_LOGD("Destroying trace class object: %!+T", tc);
+       BT_OBJECT_PUT_REF_AND_RESET(tc->user_attributes);
+
        /*
         * Call destruction listener functions so that everything else
         * still exists in the trace class.
@@ -131,6 +134,12 @@ struct bt_trace_class *bt_trace_class_create(bt_self_component *self_comp)
        }
 
        bt_object_init_shared_with_parent(&tc->base, destroy_trace_class);
+       tc->user_attributes = bt_value_map_create();
+       if (!tc->user_attributes) {
+               BT_LIB_LOGE_APPEND_CAUSE(
+                       "Failed to create a map value object.");
+               goto error;
+       }
 
        tc->stream_classes = g_ptr_array_new_with_free_func(
                (GDestroyNotify) bt_object_try_spec_release);
@@ -305,6 +314,33 @@ void bt_trace_class_set_assigns_automatic_stream_class_id(struct bt_trace_class
                "assignment property: %!+T", tc);
 }
 
+const struct bt_value *bt_trace_class_borrow_user_attributes_const(
+               const struct bt_trace_class *trace_class)
+{
+       BT_ASSERT_PRE_DEV_NON_NULL(trace_class, "Trace class");
+       return trace_class->user_attributes;
+}
+
+struct bt_value *bt_trace_class_borrow_user_attributes(
+               struct bt_trace_class *trace_class)
+{
+       return (void *) bt_trace_class_borrow_user_attributes_const(
+               (void *) trace_class);
+}
+
+void bt_trace_class_set_user_attributes(struct bt_trace_class *trace_class,
+               const struct bt_value *user_attributes)
+{
+       BT_ASSERT_PRE_NON_NULL(trace_class, "Trace class");
+       BT_ASSERT_PRE_NON_NULL(user_attributes, "User attributes");
+       BT_ASSERT_PRE(user_attributes->type == BT_VALUE_TYPE_MAP,
+               "User attributes object is not a map value object.");
+       BT_ASSERT_PRE_DEV_TRACE_CLASS_HOT(trace_class);
+       bt_object_put_no_null_check(trace_class->user_attributes);
+       trace_class->user_attributes = (void *) user_attributes;
+       bt_object_get_no_null_check(trace_class->user_attributes);
+}
+
 void bt_trace_class_get_ref(const struct bt_trace_class *trace_class)
 {
        bt_object_get_ref(trace_class);