Impl setting the history-graph size

This commit is contained in:
Stephen Seo 2022-12-13 20:03:01 +09:00
parent 6bc6c1b38f
commit fb4d32e257
3 changed files with 65 additions and 9 deletions

View file

@ -27,6 +27,9 @@ pub fn get_args() -> ArgsResult {
map.insert("netgraph".into(), back.into());
} else if arg.starts_with("--netgraph_dyn_display") {
map.insert("netgraph-dyndisplay".into(), String::new());
} else if arg.starts_with("--netgraph_size=") {
let (_, back) = arg.split_at(16);
map.insert("netgraph-size".into(), back.into());
} else if arg.starts_with("--interval-sec=") {
let (_, back) = arg.split_at(15);
map.insert("interval-sec".into(), back.into());
@ -69,6 +72,9 @@ pub fn print_usage() {
stderr_handle
.write_all(b" \t\t\t\t (Set to \"dynamic\" instead of a byte count for dynamic sizing)\n")
.ok();
stderr_handle
.write_all(b" --netgraph_size=<size>\t\t\t\tSet the number of characters displayed in the net-graph (size of graph)\n")
.ok();
stderr_handle
.write_all(b" --netgraph_dyn_display\t\t\t\tEnable showing the current maximum value in the graph\n")
.ok();

View file

@ -50,8 +50,33 @@ fn main() {
let mut net_graph_show_dynamic_max: bool = false;
let mut interval: Duration = Duration::from_secs(5);
if args_result.map.contains_key("netdev") {
let mut net_graph_size: Option<usize> = None;
if let Some(size_str) = args_result.map.get("netgraph-size") {
if let Ok(size) = size_str.parse::<usize>() {
if size > 0 {
net_graph_size = Some(size);
} else {
let mut stderr_handle = io::stderr().lock();
stderr_handle
.write_all(
"WARNING: Invalid value passed to --netgraph_size=..., ignoring...\n"
.as_bytes(),
)
.ok();
}
} else {
let mut stderr_handle = io::stderr().lock();
stderr_handle
.write_all(
"WARNING: Invalid value passed to --netgraph_size=..., ignoring...\n"
.as_bytes(),
)
.ok();
}
}
net_obj = Some(proc::NetInfo::new(
args_result.map.get("netdev").unwrap().to_owned(),
net_graph_size,
));
}
if args_result.map.contains_key("netdevwidth") {

View file

@ -1,6 +1,7 @@
use std::fmt::Write;
use std::fmt::Write as FMTWrite;
use std::fs::File;
use std::io::prelude::*;
use std::io::Write as IOWrite;
#[derive(Debug)]
pub enum Error {
@ -59,7 +60,7 @@ impl std::error::Error for Error {
pub struct NetInfo {
dev_name: String,
graph: String,
graph_history: [f64; 10],
graph_history: Vec<f64>,
down: u64,
prev_down: u64,
up: u64,
@ -68,17 +69,39 @@ pub struct NetInfo {
}
impl NetInfo {
pub fn new(dev_name: String) -> Self {
Self {
pub fn new(dev_name: String, graph_size_opt: Option<usize>) -> Self {
let mut s = Self {
dev_name,
graph: String::from(" "),
graph_history: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
graph_history: Vec::new(),
down: 0,
prev_down: 0,
up: 0,
prev_up: 0,
first_iteration: true,
};
if let Some(graph_size) = graph_size_opt {
if graph_size > 0 {
s.graph_history.resize(graph_size, 0.0);
s.graph = s.graph.repeat(graph_size);
} else {
let mut stderr_handle = std::io::stderr().lock();
stderr_handle
.write_all(
"WARNING: Invalid graph_size value passed to NetInfo, ignoring...\n"
.as_bytes(),
)
.ok();
s.graph_history.resize(10, 0.0);
s.graph = s.graph.repeat(10);
}
} else {
s.graph_history.resize(10, 0.0);
s.graph = s.graph.repeat(10);
}
s
}
pub fn update(&mut self) -> Result<(), Error> {
@ -188,7 +211,10 @@ impl NetInfo {
}
} else {
self.graph_history.rotate_left(1);
self.graph_history[9] = diff_max;
{
let end_idx = self.graph_history.len() - 1;
self.graph_history[end_idx] = diff_max;
}
let mut history_max: f64 = 0.0;
for value in &self.graph_history {
@ -211,7 +237,7 @@ impl NetInfo {
self.graph.clear();
if history_max == 0.0 {
self.graph = String::from(" ");
self.graph = String::from(" ").repeat(self.graph_history.len());
} else {
for value in &self.graph_history {
match (8.0 * value / history_max).round() as u8 {
@ -227,7 +253,6 @@ impl NetInfo {
}
}
}
assert_eq!(self.graph_history.len(), 10);
}
Ok((output, self.graph.clone(), diff_max_string))