DON'T MERGE CODE. This is a demo of the callcontext based threadsafe profiler approach.

Hi Jarrod,

Please check this demo. Because our code is our private framework, which wraps your v2.1, I could not show you our code directly. So I created a fork and send you this pullrequest. This is not the quality of ready-for-merge code, just demo the approach. Please feel free to add any comments.