[#btck_chainstate_manager_options_set_wipe_dbs]
= btck_chainstate_manager_options_set_wipe_dbs
:mrdocs:

Sets wipe db in the options. In combination with calling xref:btck_chainstate_manager_import_blocks.adoc[`btck_chainstate_manager_import_blocks`] this triggers either a full reindex, or a reindex of just the chainstate database.

== Synopsis

Declared in `<kernel/bitcoinkernel.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard, __nonnull__]]
int
btck_chainstate_manager_options_set_wipe_dbs(
    xref:btck_ChainstateManagerOptions-08.adoc[btck_ChainstateManagerOptions]* chainstate_manager_options,
    int wipe_block_tree_db,
    int wipe_chainstate_db);
----

== Description

[NOTE]
====
When a wipe is set, the caller must invoke xref:btck_chainstate_manager_import_blocks.adoc[`btck_chainstate_manager_import_blocks`] on the resulting chainstate manager before using it for anything else.

====

== Return Value

0 if the set was successful, non‐zero if the set failed.

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *chainstate_manager_options* [in]
| Non‐null, created by xref:btck_chainstate_manager_options_create.adoc[`btck_chainstate_manager_options_create`].
| *wipe_block_tree_db* [in]
| Set wipe block tree db. Should only be 1 if wipe_chainstate_db is 1 too.
| *wipe_chainstate_db* [in]
| Set wipe chainstate db.
|===


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