bpo-38304: Add PyConfig.struct_size (GH-16451)

Add a new struct_size field to PyPreConfig and PyConfig structures to
allow to modify these structures in the future without breaking the
backward compatibility.

* Replace private _config_version field with public struct_size field
  in PyPreConfig and PyConfig.
* Public PyPreConfig_InitIsolatedConfig() and
  PyPreConfig_InitPythonConfig()
  return type becomes PyStatus, instead of void.
* Internal _PyConfig_InitCompatConfig(),
  _PyPreConfig_InitCompatConfig(), _PyPreConfig_InitFromConfig(),
  _PyPreConfig_InitFromPreConfig() return type becomes PyStatus,
  instead of void.
* Remove _Py_CONFIG_VERSION
* Update the Initialization Configuration documentation.
This commit is contained in:
Victor Stinner 2019-09-28 04:28:35 +02:00 committed by GitHub
parent 52d1b86bde
commit 441b10cf28
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GPG key ID: 4AEE18F83AFDEB23
13 changed files with 350 additions and 60 deletions

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@ -60,7 +60,12 @@ _PyRuntimeState_Init_impl(_PyRuntimeState *runtime)
_PyGC_Initialize(&runtime->gc);
_PyEval_Initialize(&runtime->ceval);
PyPreConfig_InitPythonConfig(&runtime->preconfig);
runtime->preconfig.struct_size = sizeof(PyPreConfig);
PyStatus status = PyPreConfig_InitPythonConfig(&runtime->preconfig);
if (_PyStatus_EXCEPTION(status)) {
return status;
}
runtime->gilstate.check_enabled = 1;
@ -204,6 +209,7 @@ PyInterpreterState_New(void)
memset(interp, 0, sizeof(*interp));
interp->id_refcount = -1;
interp->config.struct_size = sizeof(PyConfig);
PyStatus status = PyConfig_InitPythonConfig(&interp->config);
if (_PyStatus_EXCEPTION(status)) {
/* Don't report status to caller: PyConfig_InitPythonConfig()