ir: disable clock value accessors in non-writer mode

[babeltrace.git] / include / babeltrace / ctf-ir / clock-internal.h

diff --git a/include/babeltrace/ctf-ir/clock-internal.h b/include/babeltrace/ctf-ir/clock-internal.h
index 89c271d3cb58bb42936192e26bdad3ac76198c05..8f7b5f07e31f9d9b77dfe8ab800e4143bb2be51a 100644 (file)
--- a/include/babeltrace/ctf-ir/clock-internal.h
+++ b/include/babeltrace/ctf-ir/clock-internal.h
@@ -27,24 +27,35 @@
  * SOFTWARE.
  */
 
-#include <babeltrace/ctf-writer/ref-internal.h>
 #include <babeltrace/ctf-writer/clock.h>
 #include <babeltrace/ctf-ir/trace-internal.h>
+#include <babeltrace/object-internal.h>
 #include <babeltrace/babeltrace-internal.h>
 #include <glib.h>
-#include <uuid/uuid.h>
+#include <babeltrace/compat/uuid.h>
 
 struct bt_ctf_clock {
-       struct bt_ctf_ref ref_count;
+       struct bt_object base;
        GString *name;
        GString *description;
        uint64_t frequency;
        uint64_t precision;
-       uint64_t offset_s;      /* Offset in seconds */
-       uint64_t offset;        /* Offset in ticks */
-       uint64_t time;          /* Current clock value */
+       int64_t offset_s;       /* Offset in seconds */
+       int64_t offset;         /* Offset in ticks */
+       uint64_t value;         /* Current clock value */
        uuid_t uuid;
+       int uuid_set;
        int absolute;
+
+       /*
+        * This field is set once a clock is added to a trace. If the
+        * trace was created by a CTF writer, then the clock's value
+        * can be set and returned. Otherwise both functions fail
+        * because, in non-writer mode, clocks do not have global
+        * values: values are per-stream.
+        */
+       int has_value;
+
        /*
         * A clock's properties can't be modified once it is added to a stream
         * class.
@@ -52,6 +63,24 @@ struct bt_ctf_clock {
        int frozen;
 };
 
+/*
+ * This is not part of the public API to prevent users from creating clocks
+ * in an invalid state (being nameless, in this case).
+ *
+ * The only legitimate use-case for this function is to allocate a clock
+ * while the TSDL metadata is being parsed.
+ */
+BT_HIDDEN
+struct bt_ctf_clock *_bt_ctf_clock_create(void);
+
+/*
+ * Not exposed as part of the public API since the only usecase
+ * for this is when we are creating clocks from the TSDL metadata.
+ */
+BT_HIDDEN
+int bt_ctf_clock_set_name(struct bt_ctf_clock *clock,
+               const char *name);
+
 BT_HIDDEN
 void bt_ctf_clock_freeze(struct bt_ctf_clock *clock);