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[Python-Dev] PEP 445: Add new APIs to customize Python memory allocators (second round)

Antoine Pitrou solipsis at pitrou.net
Thu Jun 20 14:16:48 CEST 2013 
Le Thu, 20 Jun 2013 13:26:52 +0200,
Victor Stinner <victor.stinner at gmail.com> a écrit :

> Hi,
> 
> I changed the PEP 445 according to the discussing on python-dev.
> 
> Read it online:
> http://www.python.org/dev/peps/pep-0445/
> 
> Changes:
> 
>  * add PyMemAllocatorDomain enum: PYALLOC_PYMEM_RAW, PYALLOC_PYMEM or
> PYALLOC_PYOBJECT

PYMEM_DOMAIN_RAW?


>  * rename:
> 
>    - PyMemBlockAllocator structure => PyMemAllocator
>    - PyMemMappingAllocator structure => PyObjectArenaAllocator
>    - PyMem_GetMappingAllocator() => PyObject_GetArenaAllocator()
>    - PyMem_SetMappingAllocator() => PyObject_SetArenaAllocator()
> 
>  * group get/set functions to only keep 2 functions:
>    PyMem_GetAllocator() and PyMem_SetAllocator()
>  * PyMem_RawMalloc(0) now calls malloc(1) to have a well defined
> behaviour
>  * PYALLOC_PYMEM_RAW and PYALLOC_PYMEM are now using exactly the same
> allocator
>  * Add more references for external libraries
> 
> As expected, most changes occurred in the Proposal section.
> 
> Full diff:
> http://hg.python.org/peps/rev/a17ebebe52ca
> 
> I also updated the implementation attached to:
> http://bugs.python.org/issue3329
> 
> Who is going give the final decision on this PEP? Guido? Another
> candidate?
> 
> Victor
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