tlby commented on a change in pull request #12038: MXNET-776 [Perl] Better
documentation/bug fixes.
URL: https://github.com/apache/incubator-mxnet/pull/12038#discussion_r208260635
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File path: perl-package/AI-MXNetCAPI/mxnet_typemaps.i
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@@ -1215,5 +1215,5 @@
%typemap(in) (void* callback_handle)
{
- $1 = (void*)$input;
+ $1 = (void*)newSVsv($input);
Review comment:
I suspect you had to do this because you found`$input` was getting freed?
newSVsv() will return a copy with a refcount of 1 preventing that, but
`SvREFCNT_inc($input)` would likely have worked here as well with less effort.
But in both cases, we probably need an `SvREFCNT_dec(...)` somewhere to avoid a
(small) memory leak.
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