Invoking C++ functions from Python multithread

[zliucd]

Hi,

I'm using Pybind to invoke C++ functions from a shared library. I also use Python multi threading for parallel invoking. But for a few test cases, C++ function returns incorrect data in multithreading; the return data is correct if not using multithreading.

Please let me know how to use multithreading for Pybind. Thanks.