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

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

diff --git a/src/lib/trace-ir/trace.c b/src/lib/trace-ir/trace.c
index 7b1749ebf847730aa02cf1bf584c2f1ac436a2a5..9891d12b224dc53131fc94f0f863b11e0802dd11 100644 (file)
--- a/src/lib/trace-ir/trace.c
+++ b/src/lib/trace-ir/trace.c
@@ -55,6 +55,7 @@
 #include "trace-class.h"
 #include "trace.h"
 #include "utils.h"
+#include "lib/value.h"
 #include "lib/func-status.h"
 
 struct bt_trace_destruction_listener_elem {
@@ -71,6 +72,7 @@ void destroy_trace(struct bt_object *obj)
        struct bt_trace *trace = (void *) obj;
 
        BT_LIB_LOGD("Destroying trace object: %!+t", trace);
+       BT_OBJECT_PUT_REF_AND_RESET(trace->user_attributes);
 
        /*
         * Call destruction listener functions so that everything else
@@ -153,6 +155,13 @@ struct bt_trace *bt_trace_create(struct bt_trace_class *tc)
        }
 
        bt_object_init_shared(&trace->base, destroy_trace);
+       trace->user_attributes = bt_value_map_create();
+       if (!trace->user_attributes) {
+               BT_LIB_LOGE_APPEND_CAUSE(
+                       "Failed to create a map value object.");
+               goto error;
+       }
+
        trace->streams = g_ptr_array_new_with_free_func(
                (GDestroyNotify) bt_object_try_spec_release);
        if (!trace->streams) {
@@ -482,6 +491,9 @@ void _bt_trace_freeze(const struct bt_trace *trace)
        BT_ASSERT(trace);
        BT_LIB_LOGD("Freezing trace's class: %!+T", trace->class);
        bt_trace_class_freeze(trace->class);
+       BT_LIB_LOGD("Freezing trace's user attributes: %!+v",
+               trace->user_attributes);
+       bt_value_freeze(trace->user_attributes);
        BT_LIB_LOGD("Freezing trace: %!+t", trace);
        ((struct bt_trace *) trace)->frozen = true;
 }
@@ -535,6 +547,32 @@ const struct bt_trace_class *bt_trace_borrow_class_const(
        return bt_trace_borrow_class((void *) trace);
 }
 
+const struct bt_value *bt_trace_borrow_user_attributes_const(
+               const struct bt_trace *trace)
+{
+       BT_ASSERT_PRE_DEV_NON_NULL(trace, "Trace");
+       return trace->user_attributes;
+}
+
+struct bt_value *bt_trace_borrow_user_attributes(struct bt_trace *trace)
+{
+       return (void *) bt_trace_borrow_user_attributes_const((void *) trace);
+}
+
+void bt_trace_set_user_attributes(
+               struct bt_trace *trace,
+               const struct bt_value *user_attributes)
+{
+       BT_ASSERT_PRE_NON_NULL(trace, "Trace");
+       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_HOT(trace);
+       bt_object_put_no_null_check(trace->user_attributes);
+       trace->user_attributes = (void *) user_attributes;
+       bt_object_get_no_null_check(trace->user_attributes);
+}
+
 void bt_trace_get_ref(const struct bt_trace *trace)
 {
        bt_object_get_ref(trace);