Simon, Can you please elaborate? I'm following example code from: https://github.com/kennethnoyens/lwipHttpClient/blob/master/httpclient.c <https://github.com/kennethnoyens/lwipHttpClient/blob/master/httpclient.c>
struct pbuf is a linked list and referring to the current element at top at that list should free only that element. That's how pbuf_free is defined (or am i totally out of understanding?) /** * Dereference a pbuf chain or queue and deallocate any no-longer-used * pbufs at the head of this chain or queue. * * Decrements the pbuf reference count. If it reaches zero, the pbuf is * deallocated. * * For a pbuf chain, this is repeated for each pbuf in the chain, * up to the first pbuf which has a non-zero reference count after * decrementing. So, when all reference counts are one, the whole * chain is free'd. * * @param p The pbuf (chain) to be dereferenced. * * @return the number of pbufs that were de-allocated * from the head of the chain. * * @note MUST NOT be called on a packet queue (Not verified to work yet). * @note the reference counter of a pbuf equals the number of pointers * that refer to the pbuf (or into the pbuf). * * @internal examples: * * Assuming existing chains a->b->c with the following reference * counts, calling pbuf_free(a) results in: * * 1->2->3 becomes ...1->3 * 3->3->3 becomes 2->3->3 * 1->1->2 becomes ......1 * 2->1->1 becomes 1->1->1 * 1->1->1 becomes ....... * */ -- Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users
