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bpo-42260: Add _PyInterpreterState_SetConfig() (GH-23158)

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* Inline _PyInterpreterState_SetConfig(): replace it with
  _PyConfig_Copy().
* Add _PyErr_SetFromPyStatus()
* Add _PyInterpreterState_GetConfigCopy()
* Add a new _PyInterpreterState_SetConfig() function.
* Add an unit which gets, modifies, and sets the config.
This commit is contained in:
Victor Stinner 2020-11-05 00:45:56 +01:00 • committed by GitHub
parent 100964e031
commit 048a35659a
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 189 additions and 16 deletions
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70
Python/pylifecycle.c
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@ -428,6 +428,67 @@ _Py_SetLocaleFromEnv(int category)
}
static int
interpreter_set_config(const PyConfig *config)
{
PyThreadState *tstate = PyThreadState_Get();
PyStatus status = _PyConfig_Write(config, tstate->interp->runtime);
if (_PyStatus_EXCEPTION(status)) {
_PyErr_SetFromPyStatus(status);
return -1;
}
status = _PyConfig_Copy(&tstate->interp->config, config);
if (_PyStatus_EXCEPTION(status)) {
_PyErr_SetFromPyStatus(status);
return -1;
}
config = &tstate->interp->config;
if (config->_install_importlib && _Py_IsMainInterpreter(tstate)) {
status = _PyConfig_WritePathConfig(config);
if (_PyStatus_EXCEPTION(status)) {
_PyErr_SetFromPyStatus(status);
return -1;
}
}
// Update the sys module for the new configuration
if (_PySys_UpdateConfig(tstate) < 0) {
return -1;
}
return 0;
}
int
_PyInterpreterState_SetConfig(const PyConfig *src_config)
{
int res = -1;
PyConfig config;
PyConfig_InitPythonConfig(&config);
PyStatus status = _PyConfig_Copy(&config, src_config);
if (_PyStatus_EXCEPTION(status)) {
_PyErr_SetFromPyStatus(status);
goto done;
}
status = PyConfig_Read(&config);
if (_PyStatus_EXCEPTION(status)) {
_PyErr_SetFromPyStatus(status);
goto done;
}
res = interpreter_set_config(&config);
done:
PyConfig_Clear(&config);
return res;
}
/* Global initializations. Can be undone by Py_Finalize(). Don't
call this twice without an intervening Py_Finalize() call.
@ -462,7 +523,7 @@ pyinit_core_reconfigure(_PyRuntimeState *runtime,
return status;
}
status = _PyInterpreterState_SetConfig(interp, config);
status = _PyConfig_Copy(&interp->config, config);
if (_PyStatus_EXCEPTION(status)) {
return status;
}
@ -550,7 +611,7 @@ pycore_create_interpreter(_PyRuntimeState *runtime,
return _PyStatus_ERR("can't make main interpreter");
}
PyStatus status = _PyInterpreterState_SetConfig(interp, config);
PyStatus status = _PyConfig_Copy(&interp->config, config);
if (_PyStatus_EXCEPTION(status)) {
return status;
}
@ -917,7 +978,7 @@ pyinit_core(_PyRuntimeState *runtime,
}
PyConfig config;
_PyConfig_InitCompatConfig(&config);
PyConfig_InitPythonConfig(&config);
status = _PyConfig_Copy(&config, src_config);
if (_PyStatus_EXCEPTION(status)) {
@ -1835,7 +1896,8 @@ new_interpreter(PyThreadState **tstate_p, int isolated_subinterpreter)
config = _PyInterpreterState_GetConfig(main_interp);
}
status = _PyInterpreterState_SetConfig(interp, config);
status = _PyConfig_Copy(&interp->config, config);
if (_PyStatus_EXCEPTION(status)) {
goto error;
}