[systemd-devel] why the function don't have the parameter of 'value'

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Dear Lennart，


Thank you very much for your help.


thanks，
Byron







At 2019-08-13 15:44:59, "Lennart Poettering" <lennart at poettering.net> wrote:
>On Di, 13.08.19 09:21, www (ouyangxuan10 at 163.com) wrote:
>
>> I am looking forward to your reply.
>> thanks，
>
>It expects that you registered an object vtable first, which lists
>properties. The getters in that vtable are then called for the values.
>
>This is unfortunately a bit under-documented, but basically everything
>defined via the SD_BUS_PROPERTY() macro for the same object path is
>included (given the right flags) in the message.
>
>Lennart
>
>--
>Lennart Poettering, Berlin
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