lq_utils: Move packet scaling routines to library

This moves the packet scaling routines for g/m/k gps and
g/m/k bytes to a shared library.

src/rust/Cargo.lock

@@ -1459,6 +1459,7 @@ dependencies = [
  "anyhow",
  "crossterm 0.19.0",
  "lqos_bus",
+ "lqos_utils",
  "tokio",
  "tui",
 ]

src/rust/lqos_utils/src/lib.rs

@@ -1,2 +1,3 @@
-mod string_table_enum;
 mod commands;
+pub mod packet_scale;
+mod string_table_enum;

src/rust/lqos_utils/src/packet_scale.rs

@@ -0,0 +1,23 @@
+pub fn scale_packets(n: u64) -> String {
+  if n > 1_000_000_000 {
+    format!("{:.2} gpps", n as f32 / 1_000_000_000.0)
+  } else if n > 1_000_000 {
+    format!("{:.2} mpps", n as f32 / 1_000_000.0)
+  } else if n > 1_000 {
+    format!("{:.2} kpps", n as f32 / 1_000.0)
+  } else {
+    format!("{n} pps")
+  }
+}
+
+pub fn scale_bits(n: u64) -> String {
+  if n > 1_000_000_000 {
+    format!("{:.2} gbit/s", n as f32 / 1_000_000_000.0)
+  } else if n > 1_000_000 {
+    format!("{:.2} mbit/s", n as f32 / 1_000_000.0)
+  } else if n > 1_000 {
+    format!("{:.2} kbit/s", n as f32 / 1_000.0)
+  } else {
+    format!("{n} bit/s")
+  }
+}

src/rust/lqtop/Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 [dependencies]
 tokio = { version = "1.22", features = [ "rt", "macros", "net", "io-util", "time" ] }
 lqos_bus = { path = "../lqos_bus" }
+lqos_utils = { path = "../lqos_utils" }
 anyhow = "1"
 tui = "0.19"
 crossterm = { version = "0.19", features = [ "serde" ] }

src/rust/lqtop/src/main.rs

@@ -4,6 +4,7 @@ use crossterm::{
   terminal::{enable_raw_mode, size},
 };
 use lqos_bus::{BusClient, BusRequest, BusResponse, IpStats};
+use lqos_utils::packet_scale::{scale_bits,scale_packets};
 use std::{io, time::Duration};
 use tui::{
   backend::CrosstermBackend,
@@ -75,30 +76,6 @@ fn draw_menu<'a>(is_connected: bool) -> Paragraph<'a> {
     para
 }
 
-fn scale_packets(n: u64) -> String {
-  if n > 1_000_000_000 {
-    format!("{:.2} gpps", n as f32 / 1_000_000_000.0)
-  } else if n > 1_000_000 {
-    format!("{:.2} mpps", n as f32 / 1_000_000.0)
-  } else if n > 1_000 {
-    format!("{:.2} kpps", n as f32 / 1_000.0)
-  } else {
-    format!("{n} pps")
-  }
-}
-
-fn scale_bits(n: u64) -> String {
-  if n > 1_000_000_000 {
-    format!("{:.2} gbit/s", n as f32 / 1_000_000_000.0)
-  } else if n > 1_000_000 {
-    format!("{:.2} mbit/s", n as f32 / 1_000_000.0)
-  } else if n > 1_000 {
-    format!("{:.2} kbit/s", n as f32 / 1_000.0)
-  } else {
-    format!("{n} bit/s")
-  }
-}
-
 fn draw_pps<'a>(
   packets_per_second: (u64, u64),
   bits_per_second: (u64, u64),