8000 gh-109860: Use a New Thread State When Switching Interpreters, When Necessary by ericsnowcurrently · Pull Request #110245 · python/cpython · GitHub
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gh-109860: Use a New Thread State When Switching Interpreters, When Necessary #110245

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Merged
merged 13 commits into from
Oct 3, 2023
Merged

gh-109860: Use a New Thread State When Switching Interpreters, When Necessary #110245

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2117772
Add PyThreadState._whence.
ericsnowcurrently Sep 25, 2023
23828a3
Add an assert.
ericsnowcurrently Sep 25, 2023
b807906
Set up interp->_initial_thread for re-use.
ericsnowcurrently Sep 25, 2023
3e10a5c
Use a local PyThreadState in _PyInterpreterState_IDDecref().
ericsnowcurrently Sep 25, 2023
15e978a
Use a local PyThreadState in _xxsubinterpreters.
ericsnowcurrently Sep 26, 2023
0b60d6d
Throw away the initial thread state.
ericsnowcurrently Sep 26, 2023
781cb53
Use existing API.
ericsnowcurrently Sep 27, 2023
cd288b5
Release threading._main_thread._tstate_lock in _PyInterpreterState_Se…
ericsnowcurrently Sep 27, 2023
4afdf7b
Drop an assert (fork is messy).
ericsnowcurrently Sep 27, 2023
aba79e3
Add _PyInterpreterState_FailIfRunningMain().
ericsnowcurrently Sep 27, 2023
2c18554
Propagate "alraedy running" properly.
ericsnowcurrently Sep 27, 2023
845c2bd
Fix handling of no-memory in _sharedexception_bind().
ericsnowcurrently Sep 27, 2023
fec49b2
Fix some typos.
ericsnowcurrently Oct 2, 2023
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Throw away the initial thread state.
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@ericsnowcurrently
ericsnowcurrently committed Oct 2, 2023
commit 0b60d6dd568b89b18dcbd73c5b3dd8affe6b929d
4 changes: 4 additions & 0 deletions Modules/_xxsubinterpretersmodule.c
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Expand Up @@ -514,6 +514,10 @@ interp_create(PyObject *self, PyObject *args, PyObject *kwds)
PyThreadState_Swap(save_tstate);
return NULL;
}

PyThreadState_Clear(tstate);
PyThreadState_Delete(tstate);

_PyInterpreterState_RequireIDRef(interp, 1);
return idobj;
}
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2 changes: 0 additions & 2 deletions Python/pystate.c
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Expand Up @@ -1408,8 +1408,6 @@ add_threadstate(PyInterpreterState *interp, PyThreadState *tstate,
PyThreadState *next)
{
assert(interp->threads.head != tstate);
assert((next != NULL && tstate->id != 1) ||
(next == NULL && tstate->id == 1));
if (next != NULL) {
assert(next->prev == NULL || next->prev == tstate);
next->prev = tstate;
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0