# HiCollie
## Overview
Provides the APIs for detecting service thread jank and stuck events. Note that these APIs must be called in non-main threads. The following capabilities are supported:
(1) Register a periodic detection task for application service thread stuck events.
(2) Register a callback for the detection of application service thread jank events.
(3) Report application service thread stuck events.
**Since**: 12
## Files
| Name| Description|
| -- | -- |
| [hicollie.h](capi-hicollie-h.md) | HiCollie provides APIs for detecting service thread stuck and jank events and reporting stuck events.|