bool ping_regist_recv(struct ping_option *ping_opt, ping_recv_function ping_recv)
void(* ping_sent_function)(void *arg, void *pdata)
ping_recv_function recv_function
ping_sent_function sent_function
void(* ping_recv_function)(void *arg, void *pdata)
bool ping_start(struct ping_option *ping_opt)
bool ping_regist_sent(struct ping_option *ping_opt, ping_sent_function ping_sent)