Re: opaque pointers and metatype
- From: Richard Hundt <richardhundt@xxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Sun, 02 Mar 2014 14:05:34 +0100
On 3/2/14 3:39 AM, Cosmin Apreutesei wrote:
> Hi,
>
> What do you guys do when you have to use metatype on opaque pointers?
>
> Take the following example:
>
> struct OpaqueStruct * handle;
You should be able to:
ffi.cdef[[
typedef struct OpaqueStruct_ OpaqueStruct_t;
void create(OpaqueStruct_t*);
void destroy(OpaqueStruct_t*);
]]
now you can just say:
local handle = ffi.new('OpaqueStruct_t')
ffi.C.create(handle)
ffi.C.destroy(handle)
I did something similar with czmq, the main difference was that
`zctx_new` actually returns a `void*`, but should work in your case
(haven't tested it).
-R
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