[docs] [issue6627] threading.local() does not work with C-created threads
Amaury Forgeot d'Arc
report at bugs.python.org
Fri Sep 17 22:49:25 CEST 2010
Amaury Forgeot d'Arc <amauryfa at gmail.com> added the comment:
> ctypes performs the initializations in a way that break the
> threading.local functionality.
Not quite. ctypes (or more exactly: the PyGILState_Ensure() and PyGILState_Release() functions, which are the standard API to do this) is in a situation where it must call Python code from a thread which has no PyThreadState. So it creates a thread state, runs the code, and destroys the thread state; is this wrong?
If you want to keep Python state during your C thread, there are 4 lines to add to your function:
void *async_cb(void *dummy)
PyGILState_STATE gstate = PyGILState_Ensure();
resolution: -> works for me
status: open -> closed
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