make sampling period configurable

config.toml

@@ -1,3 +1,6 @@
+[global]
+period = 1
+
 [[graph]]
 name = "cpu load"
 path = "cpu.png"

waybar-collectd/src/config.rs

@@ -4,9 +4,15 @@ use serde::Deserialize;
 
 #[derive(Debug, Deserialize)]
 pub struct Config {
+    pub global: Global,
     pub graph: Vec<GraphConfig>,
 }
 
+#[derive(Debug, Deserialize)]
+pub struct Global {
+    pub period: f32,
+}
+
 #[derive(Debug, Deserialize)]
 pub struct GraphConfig {
     pub name: String,

waybar-collectd/src/main.rs

@@ -34,7 +34,7 @@ fn main() {
             if let Err(e) = r {
                 println!("{}", e.to_string());
             }
-            thread::sleep(time::Duration::from_secs(1));
+            thread::sleep(time::Duration::from_secs_f32(config.global.period));
         }
     } else {
         panic!("sock not found!");