[zeromq-dev] pyczmq: zloop callback arguments?
pelletier.michel at gmail.com
Wed Nov 20 19:10:56 CET 2013
On Wed, Nov 20, 2013 at 8:14 AM, Michel Pelletier <
pelletier.michel at gmail.com> wrote:
> 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.
> On Wed, Nov 20, 2013 at 8:07 AM, Michel Pelletier <
> pelletier.michel at gmail.com> 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
>> On Wed, Nov 20, 2013 at 4:09 AM, Michael Haberler <mail17 at mah.priv.at>wrote:
>>> I'm stuck at passing 'self' as a timer callback argument:
>>> Class Test:
>>> 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
>>> zeromq-dev at lists.zeromq.org
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