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

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

diff --git a/src/lib/trace-ir/stream.c b/src/lib/trace-ir/stream.c
index 23692399f6b35cc0dca4279295c4eba19fa441fd..c567768fe03f47669ba15781e251f5cf9752cc14 100644 (file)
--- a/src/lib/trace-ir/stream.c
+++ b/src/lib/trace-ir/stream.c
@@ -40,6 +40,7 @@
 #include "stream-class.h"
 #include "stream.h"
 #include "trace.h"
+#include "lib/value.h"
 #include "lib/func-status.h"
 
 #define BT_ASSERT_PRE_DEV_STREAM_HOT(_stream) \
@@ -51,6 +52,7 @@ void destroy_stream(struct bt_object *obj)
        struct bt_stream *stream = (void *) obj;
 
        BT_LIB_LOGD("Destroying stream object: %!+s", stream);
+       BT_OBJECT_PUT_REF_AND_RESET(stream->user_attributes);
 
        if (stream->name.str) {
                g_string_free(stream->name.str, TRUE);
@@ -118,6 +120,13 @@ struct bt_stream *create_stream_with_id(struct bt_stream_class *stream_class,
        }
 
        bt_object_init_shared_with_parent(&stream->base, destroy_stream);
+       stream->user_attributes = bt_value_map_create();
+       if (!stream->user_attributes) {
+               BT_LIB_LOGE_APPEND_CAUSE(
+                       "Failed to create a map value object.");
+               goto error;
+       }
+
        stream->name.str = g_string_new(NULL);
        if (!stream->name.str) {
                BT_LIB_LOGE_APPEND_CAUSE("Failed to allocate a GString.");
@@ -229,10 +238,38 @@ BT_HIDDEN
 void _bt_stream_freeze(const struct bt_stream *stream)
 {
        BT_ASSERT(stream);
+       BT_LIB_LOGD("Freezing stream's user attributes: %!+v",
+               stream->user_attributes);
+       bt_value_freeze(stream->user_attributes);
        BT_LIB_LOGD("Freezing stream: %!+s", stream);
        ((struct bt_stream *) stream)->frozen = true;
 }
 
+const struct bt_value *bt_stream_borrow_user_attributes_const(
+               const struct bt_stream *stream)
+{
+       BT_ASSERT_PRE_DEV_NON_NULL(stream, "Stream");
+       return stream->user_attributes;
+}
+
+struct bt_value *bt_stream_borrow_user_attributes(struct bt_stream *stream)
+{
+       return (void *) bt_stream_borrow_user_attributes_const((void *) stream);
+}
+
+void bt_stream_set_user_attributes(struct bt_stream *stream,
+               const struct bt_value *user_attributes)
+{
+       BT_ASSERT_PRE_NON_NULL(stream, "Stream");
+       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_STREAM_HOT(stream);
+       bt_object_put_no_null_check(stream->user_attributes);
+       stream->user_attributes = (void *) user_attributes;
+       bt_object_get_no_null_check(stream->user_attributes);
+}
+
 void bt_stream_get_ref(const struct bt_stream *stream)
 {
        bt_object_get_ref(stream);