8000 bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). by ericsnowcurrently · Pull Request #12360 · python/cpython · GitHub
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bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). #12360

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Merged
merged 14 commits into from
Apr 12, 2019
Merged

bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). #12360

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f8e70b4
Move pending calls from _PyRuntimeState to PyIntepreterState.
ericsnowcurrently Jul 13, 2018
991e3fb
Release the pending calls lock *after* updating the eval breaker flag.
ericsnowcurrently Mar 15, 2019
69b620e
Explicitly pass the interpreter to the stateful ceval macros.
ericsnowcurrently Sep 10, 2018
8993d23
Use the internal function.
ericsnowcurrently Sep 14, 2018
6655676
Add a NEWS entry.
ericsnowcurrently Sep 15, 2018
d716131
Optionally lock a pending call to a specific thread.
ericsnowcurrently Sep 15, 2018
1cdc3b2
Move core-only field to end of struct.
ericsnowcurrently Feb 1, 2019
158151f
Factor out struct _ceval_interpreter_state.
ericsnowcurrently Feb 1, 2019
0c83e6f
Add a TODO.
ericsnowcurrently Feb 18, 2019
40ab9ab
Use _Py_AddPendingCall() for releasing shared data.
ericsnowcurrently Sep 14, 2018
f354a86
Check the result of adding the pending call (for releasing XID).
ericsnowcurrently Jan 28, 2019
279ff04
Make a copy of data-to-be-deleted.
ericsnowcurrently Jan 29, 2019
e356cad
Fix the pending-for-other-thread case.
ericsnowcurrently Apr 5, 2019
48a23ef
Drop out-of-date code.
ericsnowcurrently Apr 5, 2019
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Use _Py_AddPendingCall() for releasing shared data.
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@ericsnowcurrently
ericsnowcurrently committed Apr 5, 2019
commit 40ab9ab02d6f98322f514aecbe57820a53d57d36
30 changes: 3 additions & 27 deletions Python/pystate.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1353,38 +1353,15 @@ _PyObject_GetCrossInterpreterData(PyObject *obj, _PyCrossInterpreterData *data)
return 0;
}

static void
static int
_release_xidata(void *arg)
{
_PyCrossInterpreterData *data = (_PyCrossInterpreterData *)arg;
if (data->free != NULL) {
data->free(data->data);
}
Py_XDECREF(data->obj);
}

static void
_call_in_interpreter(PyInterpreterState *interp,
void (*func)(void *), void *arg)
{
/* We would use Py_AddPendingCall() if it weren't specific to the
* main interpreter (see bpo-33608). In the meantime we take a
* naive approach.
*/
PyThreadState *save_tstate = NULL;
if (interp != _PyInterpreterState_Get()) {
// XXX Using the "head" thread isn't strictly correct.
PyThreadState *tstate = PyInterpreterState_ThreadHead(interp);
// XXX Possible GILState issues?
save_tstate = PyThreadState_Swap(tstate);
}

func(arg);

// Switch back.
if (save_tstate != NULL) {
PyThreadState_Swap(save_tstate);
}
return 0;
}

void
Expand All @@ -1406,8 +1383,7 @@ _PyCrossInterpreterData_Release(_PyCrossInterpreterData *data)
}

// "Release" the data and/or the object.
// XXX Use _Py_AddPendingCall().
_call_in_interpreter(interp, _release_xidata, data);
_Py_AddPendingCall(interp, 0, _release_xidata, data);
}

PyObject *
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