[lwip-users] [lwip] tcp_write()

[Chris Borrelli]

Probing for help...

I am using the raw function based api of lwIP with no OS...

I have a chain of pbufs that I want to write out over TCP... From what I
can see, if I want to avoid a data copy, I have to call tcp_write for
every pbuf in the chain... This will generate a tcp segment for each
pbuf (only 128 bytes I think).  Is this correct?

// I want to do this:
tcp_write(pcb, p, size, 0);

// where size is the sum of the p->payload data fields for the entire
chain.

Can I do this?  or does the data have to be in a contiguous buffer when
the 'copy' parameter is set to 0 (zero)??

 Thanks for any comments/help...

 -Chris

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