[Ovmsdev] Event task

[Michael Balzer]

Am 07.04.2018 um 15:23 schrieb Michael Balzer:
> Another idea that can solve both issues: SignalEvent(event, data, [DoneCallback])
>
> DoneCallback(event, data) would be called by the EventTask after listener execution has finished. The callback can implement memory cleanup and/or synchronous
> processing (i.e. by a semaphore or task signal) as needed.

C++ now also has a nice lambda construct with very simple capturing of arbitrary scope parts by copy or reference. That enables nice inline callback definitions
like this:

    char *data = strdup(message);
    MyEvents.SignalEvent("simple.event", (void*)data, [data](){ free(data); });

…or…

    SomeObject *clone = new SomeObject(original);
    MyEvents.SignalEvent("object.event", (void*)clone, [clone](){ delete clone; });

Regards,
Michael

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