X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fsession.c;h=abf61e898ceb8e6ef037a53e6729020397e5194b;hb=45798a31cc31b86a669221676ab490c035c8dfdd;hp=38dbf6128c31639b668910ede62fc4a51f19d7c0;hpb=92816cc33a1add3c8276839bd6335e17423577dd;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/session.c b/src/bin/lttng-sessiond/session.c
index 38dbf6128..abf61e898 100644
--- a/src/bin/lttng-sessiond/session.c
+++ b/src/bin/lttng-sessiond/session.c
@@ -33,6 +33,7 @@
 #include "session.h"
 #include "utils.h"
 #include "trace-ust.h"
+#include "timer.h"
 
 /*
  * NOTES:
@@ -570,3 +571,36 @@ int session_access_ok(struct ltt_session *session, uid_t uid, gid_t gid)
 		return 1;
 	}
 }
+
+/*
+ * Set a session's rotation state and reset all associated state.
+ *
+ * This function resets the rotation state (check timers, pending
+ * flags, etc.) and sets the result of the last rotation. The result
+ * can be queries by a liblttng-ctl client.
+ *
+ * Be careful of the result passed to this function. For instance,
+ * on failure to launch a rotation, a client will expect the rotation
+ * state to be set to "NO_ROTATION". If an error occured while the
+ * rotation was "ONGOING", result should be set to "ERROR", which will
+ * allow a client to report it.
+ *
+ * Must be called with the session and session_list locks held.
+ */
+int session_reset_rotation_state(struct ltt_session *session,
+		enum lttng_rotation_state result)
+{
+	int ret = 0;
+
+	ASSERT_LOCKED(ltt_session_list.lock);
+	ASSERT_LOCKED(session->lock);
+
+	session->rotation_pending_local = false;
+	session->rotation_pending_relay = false;
+	session->rotated_after_last_stop = false;
+	session->rotation_state = result;
+	if (session->rotation_pending_check_timer_enabled) {
+		ret = timer_session_rotation_pending_check_stop(session);
+	}
+	return ret;
+}