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FFI question

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Niko Schwarz

FFI question

Hi there, I'm trying to have a hold on Bonjour. I tried to convince FFI to apicall into the dll, but I failed, because I understand only little about C, and I have no idea, how to transfer this:

typedef struct _DNSServiceRef_t *DNSServiceRef;

into a smalltalk class. Note that _DNSServiceRef_t seems to be defined nowhere!

So what should "fields" return? I didn't bother to try #(()), because the method I'd like to invoke stores its result in the pointer of type DNSServiceRef*, which I'm supposed to give it, uninitialized.

niko
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Bert Freudenberg-3

Re: FFI question

Am 09.07.2006 um 17:02 schrieb Niko Schwarz:

> Hi there, I'm trying to have a hold on Bonjour. I tried to convince
> FFI to apicall into the dll, but I failed, because I understand
> only little about C, and I have no idea, how to transfer this:
>
> typedef struct _DNSServiceRef_t *DNSServiceRef;
>
> into a smalltalk class. Note that _DNSServiceRef_t seems to be
> defined nowhere!
>
> So what should "fields" return? I didn't bother to try #(()),
> because the method I'd like to invoke stores its result in the
> pointer of type DNSServiceRef*, which I'm supposed to give it,
> uninitialized.

Try
#(nil 'void*')

which compiles an alias (because there is no array in the array).

- Bert -