[#BloombergLP-balm-DefaultMetricsManager]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balm.adoc[balm]::DefaultMetricsManager
:relfileprefix: ../../
:mrdocs:

This struct provides a namespace for static functions that create, access, and destroy the default instance of the `MetricsManager`.

== Synopsis

Declared in `<balm_defaultmetricsmanager.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct DefaultMetricsManager;
----

== Description

The expected usage is that the default instance will be created during the initialization of an application (while the task has a single thread) and that it will be destroyed just prior to termination (when there is similarly a single thread).

== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/balm/DefaultMetricsManager/create-02.adoc[`create`] 
| `create` overloads
| xref:BloombergLP/balm/DefaultMetricsManager/destroy.adoc[`destroy`] 
| Destroy the default instance of `MetricsManager`.
| xref:BloombergLP/balm/DefaultMetricsManager/instance.adoc[`instance`] 
| Return the default instance of the `MetricsManager` or 0 if the default instance has not yet been created or has already been destroyed.
| xref:BloombergLP/balm/DefaultMetricsManager/manager.adoc[`manager`] 
| Return the specified `manager` if non‐null, and the default metrics manager instance otherwise.
|===



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