Re: [lwip-users] How to know if a full packed was ACK'ed ? (netconn api)

[address@hidden]

Yann Suisini wrote:
> I want to use the netconn_api for my app , but I have a question :
> I need to optimize the bandwith due to high latency connection
> (intercontinental) , so I'll send big packets 
> (about 5KB by 5KB) .
That doesn't result in big packets: the data will be splitted into 
multiple packets of 1460 bytes of data.
>  Because the systeme doe not havo much memory I would 
> send the data with NETCONN_NOCOPY . 
> So I have to be sure the full packet was ACK to be able to use the netbuf
> again . 
> How can I know if the full packet was ACKed byt the remote peer ?
With the netconn api, I think there's no way to tell. With the raw api, 
your sent-callback would be called with the amount of bytes acked by the 
peer, but the raw api is a little harder to use than the netconn api.

Simon