Ah I see what's up, poller() automatically wraps the arg in new_handle, but timer does not. In either case the callback author has to unbox the handle back into whatever it was they passed in. I'll push a PR.
-Michel On Wed, Nov 20, 2013 at 8:07 AM, Michel Pelletier < [email protected]> wrote: > Yes this is unfortunate, the arg can only be something fii thinks is a > pointer. You have to "box/unbox" it with ffi.new_handle/fii.from_handle > > http://cffi.readthedocs.org/en/release-0.8/#misc-methods-on-ffi > > -Michel > > > On Wed, Nov 20, 2013 at 4:09 AM, Michael Haberler <[email protected]>wrote: > >> I'm stuck at passing 'self' as a timer callback argument: >> >> Class Test: >> >> @ffi.callback('zloop_fn') >> def timer_event(loop, item, arg): >> print type(loop), type(item), type(arg) >> >> def __init__(self): >> ... >> zloop.timer(self.loop, msec, 1, self.timer_event, self) >> # this raises: TypeError: initializer for ctype 'void *' must be >> a cdata pointer, not instance >> >> how do I coerce this into action? >> >> - Michael >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> > >
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