What an answer extractor is given alongside the decoded message. More...

#include <ra8_c6link_internal.h>

Collaboration diagram for ra8_c6link_take_ctx:

Data Fields
ra8_c6link_t *	link
	Handle the request was issued on.
void *	out
	Where the extracted fields go, or null.
uint32_t	rpc_id
	RPC_ID__Req_* to record in the fault slot.

Detailed Description

What an answer extractor is given alongside the decoded message.

Every extractor needs the link – to record a co-processor result code in the fault slot – and most also need somewhere to put the fields they read. One shared context type carries both, so the wait slot stays a single void* and no extractor has to reach for a file-scope variable.

Invariant: link is the handle the request was issued on.; out is null exactly for requests whose answer carries no fields beyond its result code.

Example:: ra8_c6link_take_ctx_t take = { .link = link, .out = &version };

ra8_c6link_take_ctx_t
struct ra8_c6link_take_ctx ra8_c6link_take_ctx_t

ra8_c6link_take_ctx::link
ra8_c6link_t * link
Handle the request was issued on.
Definition ra8_c6link_internal.h:582