Releasing GIL in unknown state

[Farshid Lashkari]

Hi,

Is there a proper way for C code to ensure that the GIL is released? I 
know about PyGILState_Ensure and PyGILState_Release, but that is to 
ensure the GIL is acquired. I have some extension code that does heavy 
processing and I want to release the GIL, but the code can't be sure 
that the GIL is already acquired. All I can think of so far is the 
following:

PyGILState_STATE state = PyGILState_Ensure();

Py_BEGIN_ALLOW_THREADS

//do processing

Py_END_ALLOW_THREADS

PyGILState_Release(state)


Is there a better way?

-Farshid