What's the use case for the cookie in android.os.Trace#beginAsyncSection

Question

This is the signature of android.os.Trace#beginAsyncSection

public static void beginAsyncSection (String methodName, 
                int cookie)

https://developer.android.com/reference/android/os/Trace#beginAsyncSection(java.lang.String,%20int)

I understand that the same name and cookie must be used to end it, but what's the purpose of cookie? What's the use case for calling this or endAsyncSection with the same method name, but a different cookie?

user_7142193 · Answer

It's a unique identifier for distinguishing simultaneous events. Imagine that You have multiple *AsyncSection instances of the same method name. The cookie connects begin with end in each pair. The answer for the last question - You have to call endAsyncSection with a cookie used in one of beginAsyncSection.

What's the use case for the cookie in android.os.Trace#beginAsyncSection

1 Answers