[Cuis-dev] [FFI] Passing a GC collected record to C Code
philip.bernhart at posteo.de
Mon Jun 24 22:46:03 PDT 2019
thanks for the link. One question regarding the FFI tests,
is FFIPluginTests>>testPointers leaking memory? As the
ffiTestPointers function mallocs a result pointer structure
and returns the pointer to it back to the vm.
And if not, how does the VM know if the pointer it receives
can be freed / garbage collected?
I assume that my approach of creating an ExternalAddress with
gcallocate is atleast to me clearer.
ken.dickey at whidbey.com writes:
> On 2019-06-23 11:51, Philip Bernhart via Cuis-dev wrote:
>> how do I pass a struct, which is supposed to be
>> fully lying in the memory space of the VM to some
>> external C code which then copies data into that
>> struct and does nothing with it afterwards?
> Feature require: #'FFITests'.
> Then browse, e.g. FFIPluginTests>>testBiggerStruct
> C code corresponding to the tests is in the OpenSmalltalk git
> repository, e.g.:
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