Fix: consumerd: slow metadata push slows down application registration

[lttng-tools.git] / src / common / consumer / consumer.hpp

diff --git a/src/common/consumer/consumer.hpp b/src/common/consumer/consumer.hpp
index 053744904c7c7907dadae920520f6f46cc9b0d0d..9de8d05a3cb188b98c12e8c0c5ac1a476500591a 100644 (file)
--- a/src/common/consumer/consumer.hpp
+++ b/src/common/consumer/consumer.hpp
@@ -20,6 +20,7 @@
 #include <common/sessiond-comm/sessiond-comm.hpp>
 #include <common/trace-chunk-registry.hpp>
 #include <common/uuid.hpp>
+#include <common/waiter.hpp>
 
 #include <lttng/lttng.h>
 
@@ -184,6 +185,11 @@ struct lttng_consumer_channel {
        /* Metadata cache is metadata channel */
        struct consumer_metadata_cache *metadata_cache;
 
+       /*
+        * Wait queue awaiting updates to metadata stream's flushed position.
+        */
+       struct lttng_wait_queue metadata_pushed_wait_queue;
+
        /* For UST metadata periodical flush */
        int switch_timer_enabled;
        timer_t switch_timer;