[#ENGINE_set_finish_function]
= ENGINE_set_finish_function
:mrdocs:

Set the callback invoked by ENGINE_finish() to shut down an ENGINE.

== Synopsis

Declared in `<openssl/engine.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
ENGINE_set_finish_function(
    xref:ENGINE.adoc[ENGINE]* e,
    xref:ENGINE_GEN_INT_FUNC_PTR.adoc[ENGINE_GEN_INT_FUNC_PTR] finish_f);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *e*
| ENGINE whose finish hook is replaced.
| *finish_f*
| Function called to release functional state of `e,` or NULL to clear.
|===


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