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bpo-38304: Remove PyConfig.struct_size (GH-16500) (GH-16508)

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For now, we'll rely on the fact that the config structures aren't covered by the stable ABI.

We may revisit this in the future if we further explore the idea of offering a stable embedding API.

(cherry picked from commit bdace21b76)
This commit is contained in:
Victor Stinner 2019-10-01 10:56:37 +02:00 • committed by GitHub
parent 94e165096f
commit 3c30a76f3d
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GPG key ID: 4AEE18F83AFDEB23
14 changed files with 39 additions and 273 deletions
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38
Python/initconfig.c
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@ -529,17 +529,6 @@ Py_GetArgcArgv(int *argc, wchar_t ***argv)
: _PyStatus_NO_MEMORY())
static PyStatus
config_check_struct_size(const PyConfig *config)
{
if (config->struct_size != sizeof(PyConfig)) {
return _PyStatus_ERR("unsupported PyConfig structure size "
"(Python version mismatch?)");
}
return _PyStatus_OK();
}
/* Free memory allocated in config, but don't clear all attributes */
void
PyConfig_Clear(PyConfig *config)
@ -583,15 +572,7 @@ PyConfig_Clear(PyConfig *config)
PyStatus
_PyConfig_InitCompatConfig(PyConfig *config)
{
size_t struct_size = config->struct_size;
memset(config, 0, sizeof(*config));
config->struct_size = struct_size;
PyStatus status = config_check_struct_size(config);
if (_PyStatus_EXCEPTION(status)) {
_PyStatus_UPDATE_FUNC(status);
return status;
}
config->_config_init = (int)_PyConfig_INIT_COMPAT;
config->isolated = -1;
@ -775,18 +756,6 @@ _PyConfig_Copy(PyConfig *config, const PyConfig *config2)
{
PyStatus status;
status = config_check_struct_size(config);
if (_PyStatus_EXCEPTION(status)) {
_PyStatus_UPDATE_FUNC(status);
return status;
}
status = config_check_struct_size(config2);
if (_PyStatus_EXCEPTION(status)) {
_PyStatus_UPDATE_FUNC(status);
return status;
}
PyConfig_Clear(config);
#define COPY_ATTR(ATTR) config->ATTR = config2->ATTR
@ -2280,7 +2249,6 @@ core_read_precmdline(PyConfig *config, _PyPreCmdline *precmdline)
}
PyPreConfig preconfig;
preconfig.struct_size = sizeof(PyPreConfig);
status = _PyPreConfig_InitFromPreConfig(&preconfig, &_PyRuntime.preconfig);
if (_PyStatus_EXCEPTION(status)) {
@ -2475,12 +2443,6 @@ PyConfig_Read(PyConfig *config)
PyStatus status;
PyWideStringList orig_argv = _PyWideStringList_INIT;
status = config_check_struct_size(config);
if (_PyStatus_EXCEPTION(status)) {
_PyStatus_UPDATE_FUNC(status);
return status;
}
status = _Py_PreInitializeFromConfig(config, NULL);
if (_PyStatus_EXCEPTION(status)) {
return status;