extern int lttng_ust_list_apps(pid_t **pids);
extern int lttng_list_sessions(struct lttng_session **sessions);
extern int lttng_list_traces(uuid_t *uuid, struct lttng_trace **traces);
extern int lttng_ust_list_apps(pid_t **pids);
extern int lttng_list_sessions(struct lttng_session **sessions);
extern int lttng_list_traces(uuid_t *uuid, struct lttng_trace **traces);