Thank you all guys for your replies! it helps me to understand how it
works! really helpful! :)
On Friday, June 17, 2016 at 8:32:53 PM UTC+6, Andrey Salnikov wrote:
>
> Hello,
>
> Could you guys please help me.
>
> I can't find how to export method function which belongs to some go-struct
> to C-code (cgo part) as callback. I know how to export simple function
> which not belongs to any type and use it as callback for C-function, but is
> it possibly to export method of concrete struct instance? since I need
> additional info when callback will be called from C-code. As example what
> I'm trying to explain:
>
> // extern int goCallbackHandler(int, int);//// static int doAdd(int a, int b)
> {// return goCallbackHandler(a, b);// }
>
> import "C"
>
> type A struct {
> ... some data which used to process callback from C-side
> }
>
> // export cgo_callback
> func (a *A) cgo_callback(...){ <-----main problem here
> }
>
> main {
> C.doAdd(...)
> }
>
> I can't modify c-side - I have only compiled library, so I don't know how
> to identify which instance of struct should be used to properly process
> C-call of go-side callback.
>
> Thanks,
> Andrey
>
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