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

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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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12
Include/internal/pycore_initconfig.h
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@ -40,6 +40,8 @@ extern "C" {
(err._type == _PyStatus_TYPE_EXIT)
#define _PyStatus_EXCEPTION(err) \
(err._type != _PyStatus_TYPE_OK)
#define _PyStatus_UPDATE_FUNC(err) \
do { err.func = _PyStatus_GET_FUNC(); } while (0)
/* --- PyWideStringList ------------------------------------------------ */
@ -118,11 +120,11 @@ extern PyStatus _PyPreCmdline_Read(_PyPreCmdline *cmdline,
/* --- PyPreConfig ----------------------------------------------- */
PyAPI_FUNC(void) _PyPreConfig_InitCompatConfig(PyPreConfig *preconfig);
extern void _PyPreConfig_InitFromConfig(
PyAPI_FUNC(PyStatus) _PyPreConfig_InitCompatConfig(PyPreConfig *preconfig);
extern PyStatus _PyPreConfig_InitFromConfig(
PyPreConfig *preconfig,
const PyConfig *config);
extern void _PyPreConfig_InitFromPreConfig(
extern PyStatus _PyPreConfig_InitFromPreConfig(
PyPreConfig *preconfig,
const PyPreConfig *config2);
extern PyObject* _PyPreConfig_AsDict(const PyPreConfig *preconfig);
@ -135,8 +137,6 @@ extern PyStatus _PyPreConfig_Write(const PyPreConfig *preconfig);
/* --- PyConfig ---------------------------------------------- */
#define _Py_CONFIG_VERSION 1
typedef enum {
/* Py_Initialize() API: backward compatibility with Python 3.6 and 3.7 */
_PyConfig_INIT_COMPAT = 1,
@ -144,7 +144,7 @@ typedef enum {
_PyConfig_INIT_ISOLATED = 3
} _PyConfigInitEnum;
PyAPI_FUNC(void) _PyConfig_InitCompatConfig(PyConfig *config);
PyAPI_FUNC(PyStatus) _PyConfig_InitCompatConfig(PyConfig *config);
extern PyStatus _PyConfig_Copy(
PyConfig *config,
const PyConfig *config2);