[#OSSL_CMP_SRV_pollReq_cb_t]
= OSSL_CMP_SRV_pollReq_cb_t
:mrdocs:

Server callback type for processing pollReq messages.

== Synopsis

Declared in `<openssl/cmp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef int(* OSSL_CMP_SRV_pollReq_cb_t)(xref:OSSL_CMP_SRV_CTX.adoc[OSSL_CMP_SRV_CTX]*, xref:OSSL_CMP_MSG.adoc[OSSL_CMP_MSG] const*, int, xref:OSSL_CMP_MSG.adoc[OSSL_CMP_MSG]**, int64_t*);
----

== Return Value

1 on success, 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *srv_ctx*
| CMP server context.
| *req*
| Incoming pollReq message.
| *certReqId*
| Certificate request ID being polled.
| *certReq*
| Receives a pending certRep message when ready, or NULL.
| *check_after*
| Receives suggested poll interval in seconds when not ready.
|===


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