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gh-99113: Add PyInterpreterConfig.own_gil (gh-104204)

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We also add PyInterpreterState.ceval.own_gil to record if the interpreter actually has its own GIL.

Note that for now we don't actually respect own_gil; all interpreters still share the one GIL.  However, PyInterpreterState.ceval.own_gil does reflect PyInterpreterConfig.own_gil.  That lie is a temporary one that we will fix when the GIL really becomes per-interpreter.
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Eric Snow 2023-05-05 15:59:20 -06:00 • committed by GitHub
parent 66558d2a16
commit f3e7eb48f8
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11 changed files with 79 additions and 18 deletions
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2
Include/internal/pycore_ceval.h
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@ -97,7 +97,7 @@ _PyEval_Vector(PyThreadState *tstate,
PyObject *kwnames);
extern int _PyEval_ThreadsInitialized(void);
extern PyStatus _PyEval_InitGIL(PyThreadState *tstate);
extern PyStatus _PyEval_InitGIL(PyThreadState *tstate, int own_gil);
extern void _PyEval_FiniGIL(PyInterpreterState *interp);
extern void _PyEval_ReleaseLock(PyThreadState *tstate);

1
Include/internal/pycore_ceval_state.h
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@ -86,6 +86,7 @@ struct _pending_calls {
struct _ceval_state {
int recursion_limit;
struct _gil_runtime_state *gil;
int own_gil;
/* This single variable consolidates all requests to break out of
the fast path in the eval loop. */
_Py_atomic_int eval_breaker;