[PATCH v3] graph: expose node context as pointers

[Robin Jarry]

Jerin Jacob, Mar 25, 2024 at 16:47:
> > #define RTE_NODE_CTX_PTR1(n) ((void **)(n)->ctx)[0]
> > #define RTE_NODE_CTX_PTR2(n) ((void **)(n)->ctx)[1]
>
> Works for me. No strong opinion about the name, RTE_NODE_CTX_AS_PTR1
> may be more reflecting the intent.

I also thought about adding inline getter/setter functions but that's 
more code. It may be cleaner:

 static inline void *rte_node_ctx_ptr1_get(struct rte_node *n) {
     return ((void **)node->ctx)[0];
 }
 static inline void *rte_node_ctx_ptr2_get(struct rte_node *n) {
     return ((void **)node->ctx)[1];
 }
 static inline void rte_node_ctx_ptr1_set(struct rte_node *n, void *p) {
     ((void **)node->ctx)[0] = p;
 }
 static inline void rte_node_ctx_ptr2_set(struct rte_node *n, void *p) {
     ((void **)node->ctx)[1] = p;
 }

I don't have a strong opinion. I'll go either way.