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bpo-32030: Rework memory allocators (#4625)

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* Fix _PyMem_SetupAllocators("debug"): always restore allocators to
  the defaults, rather than only caling _PyMem_SetupDebugHooks().
* Add _PyMem_SetDefaultAllocator() helper to set the "default"
  allocator.
* Add _PyMem_GetAllocatorsName(): get the name of the allocators
* main() now uses debug hooks on memory allocators if Py_DEBUG is
  defined, rather than calling directly malloc()
* Document default memory allocators in C API documentation
* _Py_InitializeCore() now fails with a fatal user error if
  PYTHONMALLOC value is an unknown memory allocator, instead of
  failing with a fatal internal error.
* Add new tests on the PYTHONMALLOC environment variable
* Add support.with_pymalloc()
* Add the _testcapi.WITH_PYMALLOC constant and expose it as
   support.with_pymalloc().
* sysconfig.get_config_var('WITH_PYMALLOC') doesn't work on Windows, so
   replace it with support.with_pymalloc().
* pythoninfo: add _testcapi collector for pymem
This commit is contained in:
Victor Stinner 2017-11-29 17:20:38 +01:00 • committed by GitHub
parent c15bb49d71
commit 5d39e04290
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14 changed files with 405 additions and 171 deletions
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Python/pylifecycle.c
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@ -630,7 +630,7 @@ _Py_InitializeCore(const _PyCoreConfig *config)
}
if (_PyMem_SetupAllocators(core_config.allocator) < 0) {
return _Py_INIT_ERR("Unknown PYTHONMALLOC allocator");
return _Py_INIT_USER_ERR("Unknown PYTHONMALLOC allocator");
}
if (_PyRuntime.initialized) {