On May 30, 2016 22:51, "Carsten Haitzler" <ras...@rasterman.com> wrote:
>
> the api for promises seems pretty confusing. just look at this:
>
>   job = efl_loop_job(obj, args);
>    eina_promise_then(job, _efl_loop_args_job_cb, NULL, args);
>
> why do i need to pass in args... TWICE? well ok - this specific way of
using
> promises for jobs... both promises in efl_loop.eo do this, and it's
confusing.
> the void *data when creating the job (first args) is not used at all. the
data
> for the promise is passed as data to the promise callback.
>
> why do this? value isn't used here in the promise -actually it's the
promise
> ptr itself for whatever reason.

They are both different. A promise deliver a value at some point in the
future to multiple callback couple. The data you give when creating the
promise is the one delivered in the future. The one you pass with your
couple of callbacks is obviously tied to that couple of callback. They are
clearly 2 different things. Obviously you don't need to pass any data at
all in both case.

Cedric

> why?
>
> --
> ------------- Codito, ergo sum - "I code, therefore I am" --------------
> The Rasterman (Carsten Haitzler)    ras...@rasterman.com
>
>
>
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