[#btck_chainstate_manager_options_set_worker_threads_num]
= btck_chainstate_manager_options_set_worker_threads_num
:mrdocs:

Set the number of available worker threads used during validation.

== Synopsis

Declared in `<kernel/bitcoinkernel.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[__nonnull__]]
void
btck_chainstate_manager_options_set_worker_threads_num(
    xref:btck_ChainstateManagerOptions-08.adoc[btck_ChainstateManagerOptions]* chainstate_manager_options,
    int worker_threads);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *chainstate_manager_options* [in]
| Non‐null, options to be set.
| *worker_threads* [in]
| The number of worker threads that should be spawned in the thread pool used for validation. When set to 0 no parallel verification is done. The value range is clamped internally between 0 and 15.
|===


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