sessiond: transition from lttng-ust to tracer agnostic API

[lttng-tools.git] / src / bin / lttng-sessiond / trace-ust.cpp

diff --git a/src/bin/lttng-sessiond/trace-ust.cpp b/src/bin/lttng-sessiond/trace-ust.cpp
index de368a3baa054a25616f342017b0d1fdc3ecf1f4..1a98d3ff7108b1c752a93dcb28f6083fd4703bef 100644 (file)
--- a/src/bin/lttng-sessiond/trace-ust.cpp
+++ b/src/bin/lttng-sessiond/trace-ust.cpp
@@ -1353,6 +1353,33 @@ void trace_ust_delete_channel(struct lttng_ht *ht,
        LTTNG_ASSERT(!ret);
 }
 
+int trace_ust_regenerate_metadata(struct ltt_ust_session *usess)
+{
+       int ret = 0;
+       struct buffer_reg_uid *uid_reg = NULL;
+       struct buffer_reg_session *session_reg = NULL;
+
+       rcu_read_lock();
+       cds_list_for_each_entry(uid_reg, &usess->buffer_reg_uid_list, lnode) {
+               ust_registry_session *registry;
+
+               session_reg = uid_reg->registry;
+               registry = session_reg->reg.ust;
+
+               try {
+                       registry->regenerate_metadata();
+               } catch (const std::exception& ex) {
+                       ERR("Failed to regenerate user space session metadata: %s", ex.what());
+                       ret = -1;
+                       goto end;
+               }
+       }
+
+end:
+       rcu_read_unlock();
+       return ret;
+}
+
 /*
  * Iterate over a hash table containing channels and cleanup safely.
  */