Reference count ltt_session objects

[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 b1ca2504e6d86b722fef2bc0c4c3b7ae048e7872..6a059798d925afbd681f07a898f866e7dc8374f2 100644 (file)
--- a/src/bin/lttng-sessiond/session.h
+++ b/src/bin/lttng-sessiond/session.h
@@ -67,6 +67,7 @@ struct ltt_session {
        char hostname[HOST_NAME_MAX]; /* Local hostname. */
        struct ltt_kernel_session *kernel_session;
        struct ltt_ust_session *ust_session;
+       struct urcu_ref ref;
        /*
         * Protect any read/write on this session data structure. This lock must be
         * acquired *before* using any public functions declared below. Use
@@ -75,6 +76,8 @@ struct ltt_session {
        pthread_mutex_t lock;
        struct cds_list_head list;
        uint64_t id;            /* session unique identifier */
+       /* Indicates if a destroy command has been applied to this session. */
+       bool destroyed;
        /* UID/GID of the user owning the session */
        uid_t uid;
        gid_t gid;
@@ -205,7 +208,6 @@ struct ltt_session {
 
 /* Prototypes */
 int session_create(char *name, uid_t uid, gid_t gid);
-int session_destroy(struct ltt_session *session);
 
 void session_lock(struct ltt_session *session);
 void session_lock_list(void);
@@ -213,6 +215,11 @@ int session_trylock_list(void);
 void session_unlock(struct ltt_session *session);
 void session_unlock_list(void);
 
+void session_destroy(struct ltt_session *session);
+
+bool session_get(struct ltt_session *session);
+void session_put(struct ltt_session *session);
+
 enum consumer_dst_type session_get_consumer_destination_type(
                const struct ltt_session *session);
 const char *session_get_net_consumer_hostname(