Message 371198 - Python tracker

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Author	vstinner
Recipients	remi.lapeyre, ronaldoussoren, skrah, vstinner
Date	2020-06-10.13:40:53
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1591796453.5.0.721171654126.issue40928@roundup.psfhosted.org>
In-reply-to

Content
> Would it be possible to wrap malloc_print_configure() (https://github.com/PureDarwin/libmalloc/blob/e37056265821cd6e014ab911d9fe3b9d0da88e22/src/malloc_printf.c#L59) in a context manager that we put in test.support? or to override https://github.com/PureDarwin/libmalloc/blob/e37056265821cd6e014ab911d9fe3b9d0da88e22/src/malloc_printf.c#L36? I don't see much benefit of having a feature which only works on macOS. You can put a hook on memory allocations using PyMem_SetAllocator() to trigger any action you want when any memory allocation done by Python fails. But is it really an use case to log any memory allocation failure? Python is very likely to raise a MemoryError exception in this case. It's well defined, no?

> Would it be possible to wrap malloc_print_configure() (https://github.com/PureDarwin/libmalloc/blob/e37056265821cd6e014ab911d9fe3b9d0da88e22/src/malloc_printf.c#L59) in a context manager that we put in test.support? or to override https://github.com/PureDarwin/libmalloc/blob/e37056265821cd6e014ab911d9fe3b9d0da88e22/src/malloc_printf.c#L36?

I don't see much benefit of having a feature which only works on macOS.

You can put a hook on memory allocations using PyMem_SetAllocator() to trigger any action you want when any memory allocation done by Python fails.

But is it really an use case to log any memory allocation failure? Python is very likely to raise a MemoryError exception in this case. It's well defined, no?

History
Date	User	Action	Args
2020-06-10 13:40:53	vstinner	set	recipients: + vstinner, ronaldoussoren, skrah, remi.lapeyre
2020-06-10 13:40:53	vstinner	set	messageid: <1591796453.5.0.721171654126.issue40928@roundup.psfhosted.org>
2020-06-10 13:40:53	vstinner	link	issue40928 messages
2020-06-10 13:40:53	vstinner	create