Function spinNodeMapPoll 

pub unsafe extern "C" fn spinNodeMapPoll(
    hNodeMap: spinNodeMapHandle,
    timestamp: i64,
) -> spinError

Fires nodes which have a polling time @see spinError

@param hNodeMap The nodemap to poll @param timestamp The timestamp

@return spinError The error code; returns SPINNAKER_ERR_SUCCESS (or 0) for no error