Function gnunet_sys::GNUNET_MQ_set_handlers_closure

pub unsafe extern "C" fn GNUNET_MQ_set_handlers_closure(
    mq: *mut GNUNET_MQ_Handle, 
    handlers_cls: *mut c_void
)

Change the closure argument in all of the handlers of the @a mq.

@param mq to modify @param handlers_cls new closure to use