session_alive
if (!session_alive(fs->s))
if (tc->last_session != NULL && session_alive(tc->last_session))
session_alive(ft->c->last_session))
if (session_alive(s))
if (RB_EMPTY(&sessions) || !session_alive(s))
if (RB_EMPTY(&sessions) || !session_alive(s))
int session_alive(struct session *);