Where is the Android StrictMode implemented?

I'm looking to extend the StrictMode API, similar to what is suggested in this StackOverflow question. I saw that the API was extended in Honeycomb to include a detectCustomSlowMethod() API, which sounds like it could handle some extension cases (although I'm not sure what it does because the documentation is copy-pasted from the disk methods).

However, I want to extend the API to include additional hardware access detection, which isn't possible with the API. Therefore, my question is where can I find the code that implements the St开发者_如何学PythonrictMode API?

where can I find the code that implements the StrictMode API?

In the Android source code.

Here's the main Java interface:

https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/os/StrictMode.java

The implementations is all over the Android guts, though.