Save registration time for app

[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 5aef9e9519879cfa463188b42d94687d23462010..89d97309f7590b882587b6ddeaa6c9fc99478f46 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -140,7 +140,7 @@ struct ust_app_channel {
        /*
         * Unique key used to identify the channel on the consumer side.
         * 0 is a reserved 'invalid' value used to indicate that the consumer
-        * does not know about this channel (i.e. an error occured).
+        * does not know about this channel (i.e. an error occurred).
         */
        uint64_t key;
        /* Id of the tracing channel set on creation. */
@@ -206,13 +206,12 @@ struct ust_app_session {
         * ust_sessions_objd hash table in the ust_app object.
         */
        struct lttng_ht_node_ulong ust_objd_node;
+       /* Starts with 'ust'; no leading slash. */
        char path[PATH_MAX];
        /* UID/GID of the application owning the session */
-       uid_t uid;
-       gid_t gid;
+       struct lttng_credentials real_credentials;
        /* Effective UID and GID. Same as the tracing session. */
-       uid_t euid;
-       gid_t egid;
+       struct lttng_credentials effective_credentials;
        struct cds_list_head teardown_node;
        /*
         * Once at least *one* session is created onto the application, the
@@ -298,6 +297,11 @@ struct ust_app {
         * to a negative value indicating that the agent application is gone.
         */
        int agent_app_sock;
+       /*
+        * Time at which the app is registred.
+        * Used for path creation
+        */
+       time_t registration_time;
 };
 
 #ifdef HAVE_LIBLTTNG_UST_CTL
@@ -315,17 +319,12 @@ int ust_app_create_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_create_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
-int ust_app_enable_event_pid(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
-               pid_t pid);
 int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_enable_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
-int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan);
 int ust_app_disable_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
 int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
@@ -345,11 +344,12 @@ 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,
+enum lttng_error_code ust_app_snapshot_record(
+               const struct ltt_ust_session *usess,
+               const struct consumer_output *output, int wait,
                uint64_t nb_packets_per_stream);
 uint64_t ust_app_get_size_one_more_packet_per_stream(
-               struct ltt_ust_session *usess, uint64_t cur_nr_packets);
+               const struct ltt_ust_session *usess, uint64_t cur_nr_packets);
 struct ust_app *ust_app_find_by_sock(int sock);
 int ust_app_uid_get_channel_runtime_stats(uint64_t ust_session_id,
                struct cds_list_head *buffer_reg_uid_list,
@@ -360,7 +360,9 @@ int ust_app_pid_get_channel_runtime_stats(struct ltt_ust_session *usess,
                struct consumer_output *consumer,
                int overwrite, uint64_t *discarded, uint64_t *lost);
 int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess);
-int ust_app_rotate_session(struct ltt_session *session);
+enum lttng_error_code ust_app_rotate_session(struct ltt_session *session);
+enum lttng_error_code ust_app_create_channel_subdirectories(
+               const struct ltt_ust_session *session);
 
 static inline
 int ust_app_supported(void)
@@ -468,12 +470,6 @@ int ust_app_create_channel_glb(struct ltt_ust_session *usess,
        return 0;
 }
 static inline
-int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan)
-{
-       return 0;
-}
-static inline
 int ust_app_create_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
 {
@@ -539,8 +535,8 @@ 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, uint64_t max_stream_size)
+enum lttng_error_code ust_app_snapshot_record(struct ltt_ust_session *usess,
+               struct consumer_output *output, int wait, uint64_t max_stream_size)
 {
        return 0;
 }
@@ -595,7 +591,14 @@ int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess)
 }
 
 static inline
-int ust_app_rotate_session(struct ltt_session *session)
+enum lttng_error_code ust_app_rotate_session(struct ltt_session *session)
+{
+       return 0;
+}
+
+static inline
+enum lttng_error_code ust_app_create_channel_subdirectories(
+               const struct ltt_ust_session *session)
 {
        return 0;
 }