X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftrace-ust.cpp;h=6f423c9c6485d459afb5e452d5c0be476dd862a2;hb=b0f2e8db59fcadc8f4b06a94175792be3c431004;hp=de368a3baa054a25616f342017b0d1fdc3ecf1f4;hpb=64803277bbdbe0a943360d918298a48157d9da55;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/trace-ust.cpp b/src/bin/lttng-sessiond/trace-ust.cpp
index de368a3ba..6f423c9c6 100644
--- a/src/bin/lttng-sessiond/trace-ust.cpp
+++ b/src/bin/lttng-sessiond/trace-ust.cpp
@@ -24,6 +24,8 @@
 #include "ust-app.hpp"
 #include "agent.hpp"
 
+namespace lsu = lttng::sessiond::ust;
+
 /*
  * Match function for the events hash table lookup.
  *
@@ -1353,6 +1355,33 @@ 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) {
+		lsu::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.
  */