A New (C) API For Extensions that Need Runtime-Global Locks

[erlendaasland (Erlend E. Aasland)]

@malemburg

Alternatively, the extension could use a static C variable for this and protect it with a lock (using a thread lock as discussed above). This doesn’t seem like a good solution, though, since every single extension would have to go through the same hoops to make this happen.

How about a pair of new module slots combined with some ref. counting mechanism in for example the import machinery? Py_mod_global_init and Py_mod_global_exit?