[#SSL_get_changed_async_fds]
= SSL&lowbar;get&lowbar;changed&lowbar;async&lowbar;fds
:mrdocs:

Retrieve async wait fds added or removed since the previous query&period;

== Synopsis

Declared in `&lt;openssl&sol;ssl&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SSL&lowbar;get&lowbar;changed&lowbar;async&lowbar;fds(
    xref:SSL.adoc[SSL]* s,
    int* addfd,
    size&lowbar;t* numaddfds,
    int* delfd,
    size&lowbar;t* numdelfds);
----

== Return Value

1 on success, or 0 on failure&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| SSL connection waiting for async completion&period;
| *addfd*
| Buffer for newly added fds, or NULL to only query counts&period;
| *numaddfds*
| On entry&sol;exit, capacity and count for `addfd&period;`
| *delfd*
| Buffer for removed fds, or NULL to only query counts&period;
| *numdelfds*
| On entry&sol;exit, capacity and count for `delfd&period;`
|===


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