ir: allow the creation of an empty clock (nameless)

[babeltrace.git] / formats / ctf / ir / clock.c

diff --git a/formats/ctf/ir/clock.c b/formats/ctf/ir/clock.c
index 9256bc1f26f58ef5cb4f04a8ca9a92d32dc364e7..002b72058fd4d6a14731d1581a7ff62720b8a5fa 100644 (file)
--- a/formats/ctf/ir/clock.c
+++ b/formats/ctf/ir/clock.c
@@ -37,8 +37,7 @@
 static
 void bt_ctf_clock_destroy(struct bt_object *obj);
 
-BT_HIDDEN
-struct bt_ctf_clock *_bt_ctf_clock_create(void)
+struct bt_ctf_clock *bt_ctf_clock_create_empty(void)
 {
        struct bt_ctf_clock *clock = g_new0(
                struct bt_ctf_clock, 1);
@@ -55,11 +54,21 @@ end:
 }
 
 BT_HIDDEN
+bool bt_ctf_clock_is_valid(struct bt_ctf_clock *clock)
+{
+       return clock && clock->name;
+}
+
 int bt_ctf_clock_set_name(struct bt_ctf_clock *clock,
                const char *name)
 {
        int ret = 0;
 
+       if (!clock || clock->frozen) {
+               ret = -1;
+               goto end;
+       }
+
        if (bt_ctf_validate_identifier(name)) {
                ret = -1;
                goto end;
@@ -84,7 +93,7 @@ struct bt_ctf_clock *bt_ctf_clock_create(const char *name)
        int ret;
        struct bt_ctf_clock *clock = NULL;
 
-       clock = _bt_ctf_clock_create();
+       clock = bt_ctf_clock_create_empty();
        if (!clock) {
                goto error;
        }