Re: [lwip-users] PBUF_RAM etc

[Stephane Lesage]

> Can you explain why the pbuf struct and the payload buffer need to be
> contiguous? What problems are solved by having the struct and the
> buffer stored contiguously?

This is used for PBUF_POOL and PBUF_RAM.
This allows to NOT waste memory and time in separate payload buffer
allocation.

> There is a pointer to a buffer in the struct, it is redundant if the
> payload is at a known offset, right?

For POOL/RAM yes, but this is necessary for PBUF_ROM and PBUF_REF which
have external payload buffer.

-- 
Stephane Lesage