[#CheckBlockDataAvailability]
= CheckBlockDataAvailability
:mrdocs:

Check that a block's data (and optionally undo data) is available on disk.

== Synopsis

Declared in `<rpc/blockchain.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7f2e2991c1a0)]]
void
CheckBlockDataAvailability(
    xref:node/BlockManager.adoc[node::BlockManager]& blockman,
    xref:CBlockIndex.adoc[CBlockIndex] const& blockindex,
    bool check_for_undo);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *blockman*
| The block manager to query.
| *blockindex*
| The block index entry to check.
| *check_for_undo*
| Whether to also require the block's undo data.
|===


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