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//! Gets network data via sysinfo.
use std::time::Instant;
use super::NetworkHarvest;
use crate::app::filter::Filter;
// TODO: Eventually make it so that this thing also takes individual usage into account, so we can show per-interface!
pub fn get_network_data(
sys: &sysinfo::System, prev_net_access_time: Instant, prev_net_rx: &mut u64,
prev_net_tx: &mut u64, curr_time: Instant, filter: &Option<Filter>,
) -> NetworkHarvest {
use sysinfo::{NetworkExt, SystemExt};
let mut total_rx: u64 = 0;
let mut total_tx: u64 = 0;
let networks = sys.networks();
for (name, network) in networks {
let to_keep = if let Some(filter) = filter {
filter.keep_entry(name)
} else {
true
};
if to_keep {
total_rx += network.total_received() * 8;
total_tx += network.total_transmitted() * 8;
}
}
let elapsed_time = curr_time.duration_since(prev_net_access_time).as_secs_f64();
let (rx, tx) = if elapsed_time == 0.0 {
(0, 0)
} else {
(
((total_rx.saturating_sub(*prev_net_rx)) as f64 / elapsed_time) as u64,
((total_tx.saturating_sub(*prev_net_tx)) as f64 / elapsed_time) as u64,
)
};
*prev_net_rx = total_rx;
*prev_net_tx = total_tx;
NetworkHarvest {
rx,
tx,
total_rx,
total_tx,
}
}
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