X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=lttng-events.c;h=6b74f6e850ac0868c6f3373dffeb2df88a369b7b;hb=1b7801d6f8db3901daa3c58149397c67ee341855;hp=9c8cde8f976adbf38fbccfb360675dc8a73bca59;hpb=99626983d374df4406fdac348721531af7e49f53;p=lttng-modules.git

diff --git a/lttng-events.c b/lttng-events.c
index 9c8cde8f..6b74f6e8 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
 
@@ -237,6 +239,10 @@ 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);
@@ -255,6 +261,7 @@ end:
 int lttng_session_disable(struct lttng_session *session)
 {
 	int ret = 0;
+	struct lttng_channel *chan;
 
 	mutex_lock(&sessions_mutex);
 	if (!session->active) {
@@ -266,6 +273,10 @@ 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;