[#BloombergLP-bslstl-StopStateCallbackNode]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::StopStateCallbackNode
:relfileprefix: ../../
:mrdocs:

Intrusive list node that stores a registered stop‐callback invocation.

== Synopsis

Declared in `<bslstl_stopstate.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class StopStateCallbackNode;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/StopStateCallbackNode/invoke.adoc[`invoke`]  [.small]#[virtual]#
| Invoke the callback stored in the derived class.
|===


== Friends

[cols="1,4"]
|===
| Name| Description
| `xref:BloombergLP/bslstl/StopState.adoc[BloombergLP::bslstl::StopState]`
| Shared stop state that tracks a stop request and registered callbacks.
|===

== Derived Classes

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/StopCallback_Node.adoc[`StopCallback_Node`] 
| This component‐private class is used to implement `bsl::stop_callback`. It overrides the virtual `invoke` method of `bslstl::StopStateCallbackNode`, which allows it to be registered and invoked by `bslstl::StopState`.
|===


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