Re: cdata finalizer called twice
- From: Peter Colberg <peter@xxxxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Thu, 13 Nov 2014 10:14:17 -0500
On Thu, Nov 13, 2014 at 11:47:43AM +0100, Mike Pall wrote:
> This looks suspicious: 'event' is not anchored and you create a
> new cdata pointer object from it with 'event[0]', which has the
> finalizer attached.
event[0] is of type pointer, so LuaJIT implicitly makes a copy.
To be sure I replaced that code with
local cl_event = ffi.typeof("cl_event")
local cl_event_1 = ffi.typeof("cl_event[1]")
function queue.enqueue_marker(queue)
local event = cl_event_1()
local status = C.clEnqueueMarker(queue, event)
if status ~= C.CL_SUCCESS then return error(errors[status]) end
return ffi.gc(cl_event(event[0]), release_event)
end
and LuaJIT still finalizes some objects twice as described.
Thanks,
Peter
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