Support snapshot max-size limitation

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

diff --git a/src/bin/lttng-sessiond/ust-app.h b/src/bin/lttng-sessiond/ust-app.h
index 82694a722b976ebe494d44d88444512ecadc0aa6..11202ecaea5845a4ae8f354c7218a0a8d4a9b68c 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -143,6 +143,8 @@ struct ust_app_channel {
        struct ust_app_session *session;
        struct lttng_ht *ctx;
        struct lttng_ht *events;
+       uint64_t tracefile_size;
+       uint64_t tracefile_count;
        /*
         * Node indexed by channel name in the channels' hash table of a session.
         */
@@ -152,6 +154,8 @@ struct ust_app_channel {
         * ust_objd hash table in the ust_app object.
         */
        struct lttng_ht_node_ulong ust_objd_node;
+       /* For delayed reclaim */
+       struct rcu_head rcu_head;
 };
 
 struct ust_app_session {
@@ -171,10 +175,10 @@ struct ust_app_session {
         * Tracing session ID. Multiple ust app session can have the same tracing
         * session id making this value NOT unique to the object.
         */
-       int tracing_id;
+       uint64_t tracing_id;
        uint64_t id;    /* Unique session identifier */
        struct lttng_ht *channels; /* Registered channels */
-       struct lttng_ht_node_ulong node;
+       struct lttng_ht_node_u64 node;
        char path[PATH_MAX];
        /* UID/GID of the application owning the session */
        uid_t uid;
@@ -191,6 +195,10 @@ struct ust_app_session {
        enum lttng_buffer_type buffer_type;
        /* ABI of the session. Same value as the application. */
        uint32_t bits_per_long;
+       /* For delayed reclaim */
+       struct rcu_head rcu_head;
+       /* If the channel's streams have to be outputed or not. */
+       unsigned int output_traces;
 };
 
 /*
@@ -255,8 +263,6 @@ int ust_app_register_done(int sock)
 int ust_app_version(struct ust_app *app);
 void ust_app_unregister(int sock);
 unsigned long ust_app_list_count(void);
-int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app);
-int ust_app_stop_trace(struct ltt_ust_session *usess, struct ust_app *app);
 int ust_app_start_trace_all(struct ltt_ust_session *usess);
 int ust_app_stop_trace_all(struct ltt_ust_session *usess);
 int ust_app_destroy_trace_all(struct ltt_ust_session *usess);
@@ -301,6 +307,10 @@ struct ust_app *ust_app_create(struct ust_register_msg *msg, int sock);
 void ust_app_notify_sock_unregister(int sock);
 ssize_t ust_app_push_metadata(struct ust_registry_session *registry,
                struct consumer_socket *socket, int send_zero_data);
+void ust_app_destroy(struct ust_app *app);
+int ust_app_snapshot_record(struct ltt_ust_session *usess,
+               struct snapshot_output *output, int wait, unsigned int nb_streams);
+unsigned int ust_app_get_nb_stream(struct ltt_ust_session *usess);
 
 #else /* HAVE_LIBLTTNG_UST_CTL */
 
@@ -493,6 +503,22 @@ ssize_t ust_app_push_metadata(struct ust_registry_session *registry,
 {
        return 0;
 }
+static inline
+void ust_app_destroy(struct ust_app *app)
+{
+       return;
+}
+static inline
+int ust_app_snapshot_record(struct ltt_ust_session *usess,
+               struct snapshot_output *output, int wait, unsigned int nb_stream)
+{
+       return 0;
+}
+static inline
+unsigned int ust_app_get_nb_stream(struct ltt_ust_session *usess)
+{
+       return 0;
+}
 
 #endif /* HAVE_LIBLTTNG_UST_CTL */