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

Whether initial block download (IBD) is ongoing.

== Synopsis

Declared in `<validation.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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std::atomic_bool m_cached_is_ibd = {true};
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== Description

This value is used for lock‐free IBD checks, and latches from true to false once block loading has finished and the current chain tip has enough work and is recent.


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