int cmd_add_context(struct ltt_session *session, int domain,
char *channel_name, struct lttng_event_context *ctx, int kwpipe);
int cmd_set_filter(struct ltt_session *session, int domain,
int cmd_add_context(struct ltt_session *session, int domain,
char *channel_name, struct lttng_event_context *ctx, int kwpipe);
int cmd_set_filter(struct ltt_session *session, int domain,