X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=lttng-events.c;h=f2a9a8a58498f1f1a833e8ec1b97e76093391982;hb=64af2437213d40fdb1f386ffcad2c83ed5c11185;hp=5307b722b237991935d75a93f61d04caac36e06b;hpb=96c55c2f6b20fd742b3ea2aa291c28e140df82d8;p=lttng-modules.git

diff --git a/lttng-events.c b/lttng-events.c
index 5307b722..f2a9a8a5 100644
--- a/lttng-events.c
+++ b/lttng-events.c
@@ -52,6 +52,8 @@
 #include <lttng-abi-old.h>
 #include <lttng-endian.h>
 #include <wrapper/vzalloc.h>
+#include <wrapper/ringbuffer/backend.h>
+#include <wrapper/ringbuffer/frontend.h>
 
 #define METADATA_CACHE_DEFAULT_SIZE 4096
 
@@ -241,6 +243,10 @@ int lttng_session_enable(struct lttng_session *session)
 	/* We need to sync enablers with session before activation. */
 	lttng_session_sync_enablers(session);
 
+	/* Clear each stream's quiescent state. */
+	list_for_each_entry(chan, &session->chan, list)
+		lib_ring_buffer_clear_quiescent_channel(chan->chan);
+
 	ACCESS_ONCE(session->active) = 1;
 	ACCESS_ONCE(session->been_active) = 1;
 	ret = _lttng_session_metadata_statedump(session);
@@ -259,6 +265,7 @@ end:
 int lttng_session_disable(struct lttng_session *session)
 {
 	int ret = 0;
+	struct lttng_channel *chan;
 
 	mutex_lock(&sessions_mutex);
 	if (!session->active) {
@@ -270,6 +277,10 @@ int lttng_session_disable(struct lttng_session *session)
 	/* Set transient enabler state to "disabled" */
 	session->tstate = 0;
 	lttng_session_sync_enablers(session);
+
+	/* Set each stream's quiescent state. */
+	list_for_each_entry(chan, &session->chan, list)
+		lib_ring_buffer_set_quiescent_channel(chan->chan);
 end:
 	mutex_unlock(&sessions_mutex);
 	return ret;