Function k_poll_signal_raise 

pub unsafe extern "C" fn k_poll_signal_raise(
    sig: *mut k_poll_signal,
    result: i32,
) -> i32

@brief Signal a poll signal object.

This routine makes ready a poll signal, which is basically a poll event of type K_POLL_TYPE_SIGNAL. If a thread was polling on that event, it will be made ready to run. A @a result value can be specified.

The poll signal contains a ‘signaled’ field that, when set by k_poll_signal_raise(), stays set until the user sets it back to 0 with k_poll_signal_reset(). It thus has to be reset by the user before being passed again to k_poll() or k_poll() will consider it being signaled, and will return immediately.

@note The result is stored and the ‘signaled’ field is set even when the polling thread’s timeout is already expiring and the poll is therefore not notified directly. The next k_poll() will detect the missed raise.

@param sig A poll signal. @param result The value to store in the result field of the signal.

@retval 0 The signal was delivered successfully.