[#ChainstateManager-GetMutex]
= xref:ChainstateManager.adoc[ChainstateManager]::GetMutex
:relfileprefix: ../
:mrdocs:

Alias for ::cs_main. Should be used in new code to make it easier to make ::cs_main a member of this class. Generally, methods of this class should be annotated to require this mutex. This will make calling code more verbose, but also help to: ‐ Clarify that the method will acquire a mutex that heavily affects overall performance. ‐ Force call sites to think how long they need to acquire the mutex to get consistent results.

== Synopsis

Declared in `<validation.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[lock_returned(::cs_main)]]
xref:RecursiveMutex.adoc[RecursiveMutex]&
GetMutex() const;
----

== Return Value

A reference to the mutex protecting the chainstate manager (::cs_main).


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