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bpo-39984: _PyThreadState_DeleteCurrent() takes tstate (GH-19051)

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* _PyThreadState_DeleteCurrent() now takes tstate rather than
  runtime.
* Add ensure_tstate_not_null() helper to pystate.c.
* Add _PyEval_ReleaseLock() function.
* _PyThreadState_DeleteCurrent() now calls
  _PyEval_ReleaseLock(tstate) and frees PyThreadState memory after
  this call, not before.
* PyGILState_Release(): rename "tcur" variable to "tstate".
This commit is contained in:
Victor Stinner 2020-03-18 02:26:04 +01:00 • committed by GitHub
parent d7fabc1162
commit 23ef89db7a
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 47 additions and 32 deletions
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10
Python/ceval.c
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@ -193,7 +193,8 @@ static void
ensure_tstate_not_null(const char *func, PyThreadState *tstate)
{
if (tstate == NULL) {
_Py_FatalErrorFunc(func, "current thread state is NULL");
_Py_FatalErrorFunc(func,
"current thread state is NULL (released GIL?)");
}
}
@ -313,6 +314,13 @@ PyEval_ReleaseLock(void)
drop_gil(&runtime->ceval, tstate);
}
void
_PyEval_ReleaseLock(PyThreadState *tstate)
{
struct _ceval_runtime_state *ceval = &tstate->interp->runtime->ceval;
drop_gil(ceval, tstate);
}
void
PyEval_AcquireThread(PyThreadState *tstate)
{