[#interfaces-BlockInfo]
= xref:interfaces.adoc[interfaces]::BlockInfo
:relfileprefix: ../
:mrdocs:

Block data sent with blockConnected, blockDisconnected notifications.

== Synopsis

Declared in `<kernel/chain.h>`

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

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:interfaces/BlockInfo/2constructor.adoc[`BlockInfo`]         [.small]#[constructor]#
| Constructs a BlockInfo referring to the given block hash.
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:interfaces/BlockInfo/chain_time_max.adoc[`chain_time_max`] 
| Maximum block time in the chain up to and including this block.
| xref:interfaces/BlockInfo/data.adoc[`data`] 
| Pointer to the block contents, or null when not loaded.
| xref:interfaces/BlockInfo/data_pos.adoc[`data_pos`] 
| Byte offset of the block data within its block file.
| xref:interfaces/BlockInfo/file_number.adoc[`file_number`] 
| Index of the block file on disk that stores this block.
| xref:interfaces/BlockInfo/hash.adoc[`hash`] 
| Hash of this block.
| xref:interfaces/BlockInfo/height.adoc[`height`] 
| Height of this block in the active chain.
| xref:interfaces/BlockInfo/prev_hash.adoc[`prev_hash`] 
| Hash of the previous block, or null for the genesis block.
| xref:interfaces/BlockInfo/undo_data.adoc[`undo_data`] 
| Pointer to the block undo data, or null when not loaded.
|===


== Non-Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:kernel/MakeBlockInfo.adoc[`::kernel::MakeBlockInfo`]
| Builds block metadata from a block index entry.
|===


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