X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftrace-ust.h;h=fa91b6ae9fcc6fa17c86e4d9dc823ee404c373ea;hp=795389e9da3f34e55c6eae7fc7bffc46c4b09c80;hb=b4650bd0acbc0d3e904ed2bfb777109c824f0509;hpb=fefd409b002735b415c5f653cdb2587be454f145

diff --git a/src/bin/lttng-sessiond/trace-ust.h b/src/bin/lttng-sessiond/trace-ust.h
index 795389e9d..fa91b6ae9 100644
--- a/src/bin/lttng-sessiond/trace-ust.h
+++ b/src/bin/lttng-sessiond/trace-ust.h
@@ -74,6 +74,14 @@ struct ltt_ust_domain_global {
 	struct cds_list_head registry_buffer_uid_list;
 };
 
+struct ust_pid_tracker_node {
+	struct lttng_ht_node_ulong node;
+};
+
+struct ust_pid_tracker {
+	struct lttng_ht *ht;
+};
+
 /* UST session */
 struct ltt_ust_session {
 	uint64_t id;    /* Unique identifier of session */
@@ -113,6 +121,14 @@ struct ltt_ust_session {
 
 	/* Metadata channel attributes. */
 	struct lttng_ust_channel_attr metadata_attr;
+
+	/*
+	 * Path where to keep the shared memory files.
+	 */
+	char root_shm_path[PATH_MAX];
+	char shm_path[PATH_MAX];
+
+	struct ust_pid_tracker pid_tracker;
 };
 
 /*
@@ -185,6 +201,14 @@ void trace_ust_destroy_session(struct ltt_ust_session *session);
 void trace_ust_destroy_channel(struct ltt_ust_channel *channel);
 void trace_ust_destroy_event(struct ltt_ust_event *event);
 
+int trace_ust_track_pid(struct ltt_ust_session *session, int pid);
+int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid);
+
+int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid);
+
+ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
+		int32_t **_pids);
+
 #else /* HAVE_LIBLTTNG_UST_CTL */
 
 static inline int trace_ust_ht_match_event(struct cds_lfht_node *node,
@@ -266,7 +290,26 @@ struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
 {
 	return NULL;
 }
-
+static inline
+int trace_ust_track_pid(struct ltt_ust_session *session, int pid)
+{
+	return 0;
+}
+static inline
+int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid)
+{
+	return 0;
+}
+static inline
+int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid)
+{
+	return 0;
+}
+ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
+		int32_t **_pids)
+{
+	return -1;
+}
 #endif /* HAVE_LIBLTTNG_UST_CTL */
 
 #endif /* _LTT_TRACE_UST_H */