[lwip-devel] [task #6935] Problems to be solved with the current socket/netconn API

[Frédéric Bernon]

Follow-up Comment #13, task #6935 (project lwip):

Another thing with the current socket layer (it's not true for netconn
layer): "struct netbuf" is just used like a "wrapper" of a "struct pbuf" with
addr & port fields. In socket layer, lot of netbuf functions are not used. And
each time that a packet have to be exchange between socket layer & api_msg,
there is an netbuf allocation, initialization & free.

If we redesign the socket layer, I propose to remove any code using netbuf
and to replace that by adding "addr & port" fields directly in pbuf struct. I
don't think that the memory use will be increase (because even if we lost
memory in each pbuf, we gain the netbuf memp & functions code).





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