Function parse_nettop_network_totals

packages/server/src/performance.rs:863–903

(output: &str)

}

fn parse_nettop_network_totals(output: &str) -> (Option<u64>, Option<u64>) {
    let mut lines = output.lines().filter(|line| !line.trim().is_empty());
    let Some(header) = lines.next() else {
        return (None, None);
    };
    let columns = split_nettop_csv_line(header);
    let Some(received_index) = columns.iter().position(|column| column == "bytes_in") else {
        return (None, None);
    };
    let Some(sent_index) = columns.iter().position(|column| column == "bytes_out") else {
        return (None, None);
    };

    let mut received_total = 0_u64;
    let mut sent_total = 0_u64;
    let mut saw_received = false;
    let mut saw_sent = false;

    for line in lines {
        let fields = split_nettop_csv_line(line);
        if let Some(value) = fields
            .get(received_index)
            .and_then(|field| parse_nettop_byte_value(field))
        {
            received_total = received_total.saturating_add(value);
            saw_received = true;
        }
        if let Some(value) = fields
            .get(sent_index)
            .and_then(|field| parse_nettop_byte_value(field))
        {
            sent_total = sent_total.saturating_add(value);
            saw_sent = true;
        }
    }

    (
        saw_received.then_some(received_total),
        saw_sent.then_some(sent_total),
    )
}

fn split_nettop_csv_line(line: &str) -> Vec<String> {
    line.split(',')