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gh-76785: Crossinterp utils additions (gh-111530)

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This moves several general internal APIs out of _xxsubinterpretersmodule.c and into the new Python/crossinterp.c (and the corresponding internal headers).

Specifically:

* _Py_excinfo, etc.:  the initial implementation for non-object exception snapshots (in pycore_pyerrors.h and Python/errors.c)
* _PyXI_exception_info, etc.:  helpers for passing an exception beween interpreters (wraps _Py_excinfo)
* _PyXI_namespace, etc.:  helpers for copying a dict of attrs between interpreters
* _PyXI_Enter(), _PyXI_Exit():  functions that abstract out the transitions between one interpreter and a second that will do some work temporarily

Again, these were all abstracted out of _xxsubinterpretersmodule.c as generalizations.  I plan on proposing these as public API at some point.
This commit is contained in:
Eric Snow 2023-11-01 17:36:40 -06:00 • committed by GitHub
parent cde1071b2a
commit 9322ce90ac
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11 changed files with 1309 additions and 472 deletions
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7
Python/pylifecycle.c
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@ -738,6 +738,7 @@ pycore_init_types(PyInterpreterState *interp)
if (_PyStatus_EXCEPTION(status)) {
return status;
}
return _PyStatus_OK();
}
@ -854,6 +855,11 @@ pycore_interp_init(PyThreadState *tstate)
goto done;
}
status = _PyXI_Init(interp);
if (_PyStatus_EXCEPTION(status)) {
goto done;
}
const PyConfig *config = _PyInterpreterState_GetConfig(interp);
status = _PyImport_InitCore(tstate, sysmod, config->_install_importlib);
@ -1772,6 +1778,7 @@ finalize_interp_clear(PyThreadState *tstate)
{
int is_main_interp = _Py_IsMainInterpreter(tstate->interp);
_PyXI_Fini(tstate->interp);
_PyExc_ClearExceptionGroupType(tstate->interp);
_Py_clear_generic_types(tstate->interp);