X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftrace-ust.h;h=ed1883c76bd4f831df56ed64cd259ee92be1c0cc;hp=d58e37121696e3a4fda50fe0990316de7950229b;hb=a9ad0c8fb50ac8cf9e9812dd9c9b4f949bac19a8;hpb=022d91ba14053d6093a6d6a1af02a345c6fd42d2

diff --git a/src/bin/lttng-sessiond/trace-ust.h b/src/bin/lttng-sessiond/trace-ust.h
index d58e37121..ed1883c76 100644
--- a/src/bin/lttng-sessiond/trace-ust.h
+++ b/src/bin/lttng-sessiond/trace-ust.h
@@ -74,11 +74,20 @@ 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 */
 	struct ltt_ust_domain_global domain_global;
-	struct agent agent;
+	/* Hash table of agent indexed by agent domain. */
+	struct lttng_ht *agents;
 	/* UID/GID of the user owning the session */
 	uid_t uid;
 	gid_t gid;
@@ -112,6 +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;
 };
 
 /*
@@ -157,6 +174,8 @@ struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
 		struct lttng_event_exclusion *exclusion);
 struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht,
 		char *name);
+struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
+		enum lttng_domain_type domain_type);
 
 /*
  * Create functions malloc() the data structure.
@@ -182,6 +201,9 @@ 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);
+
 #else /* HAVE_LIBLTTNG_UST_CTL */
 
 static inline int trace_ust_ht_match_event(struct cds_lfht_node *node,
@@ -257,6 +279,22 @@ void trace_ust_delete_channel(struct lttng_ht *ht,
 {
 	return;
 }
+static inline
+struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
+		enum lttng_domain_type domain_type)
+{
+	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;
+}
 
 #endif /* HAVE_LIBLTTNG_UST_CTL */