Function systemd_journal_logger::init_with_extra_fields

pub fn init_with_extra_fields<K, V>(
    extra_fields: Vec<(K, V)>
) -> Result<(), SetLoggerError> where
    K: AsRef<str> + Sync + Send + 'static,
    V: AsRef<str> + Sync + Send + 'static, 

Initialize journal logging with extra journal fields.

Create a new JournalLog with the given fields and set it as logger with log::set_boxed_logger.

This function can only be called once during the lifetime of a program.

See init for more information about log levels and error behaviour, and JournalLog::with_extra_fields for details about extra_fields.