Fix: add missing rcu read side lock

[lttng-tools.git] / src / bin / lttng-sessiond / session.h

diff --git a/src/bin/lttng-sessiond/session.h b/src/bin/lttng-sessiond/session.h
index ebb65bfd833836ab6a648aaacd22ae672fbe91bd..8a3504f43b925c5389a69682e57e9be2c735a46a 100644 (file)
--- a/src/bin/lttng-sessiond/session.h
+++ b/src/bin/lttng-sessiond/session.h
@@ -31,19 +31,19 @@
  */
 struct ltt_session_list {
        /*
-        * This lock protects any read/write access to the list and count (which is
-        * basically the list size). All public functions in session.c acquire this
-        * lock and release it before returning. If none of those functions are
-        * used, the lock MUST be acquired in order to iterate or/and do any
-        * actions on that list.
+        * This lock protects any read/write access to the list and
+        * next_uuid. All public functions in session.c acquire this
+        * lock and release it before returning. If none of those
+        * functions are used, the lock MUST be acquired in order to
+        * iterate or/and do any actions on that list.
         */
        pthread_mutex_t lock;
 
        /*
-        * Number of element in the list. The session list lock MUST be acquired if
-        * this counter is used when iterating over the session list.
+        * Session unique ID generator. The session list lock MUST be
+        * upon update and read of this counter.
         */
-       unsigned int count;
+       unsigned int next_uuid;
 
        /* Linked list head */
        struct cds_list_head head;
@@ -82,6 +82,12 @@ struct ltt_session {
         * copied into those sessions.
         */
        struct consumer_output *consumer;
+
+       /* Indicates whether or not we have to spawn consumer(s) */
+       unsigned int start_consumer;
+
+       /* Did a start command occured before the kern/ust session creation? */
+       unsigned int started;
 };
 
 /* Prototypes */
@@ -96,4 +102,6 @@ void session_unlock_list(void);
 struct ltt_session *session_find_by_name(char *name);
 struct ltt_session_list *session_get_list(void);
 
+int session_access_ok(struct ltt_session *session, uid_t uid, gid_t gid);
+
 #endif /* _LTT_SESSION_H */