begin Titan protocol implementation

src/tool.rs

@@ -0,0 +1,23 @@
+//! Some shared helpers collection
+
+/// Format bytes to KB/MB/GB presentation
+pub fn format_bytes(value: usize) -> String {
+    const KB: f32 = 1024.0;
+    const MB: f32 = KB * KB;
+    const GB: f32 = MB * KB;
+
+    let f = value as f32;
+
+    if f < KB {
+        format!(
+            "{value} {}",
+            plurify::ns(value, &["byte", "bytes", "bytes"])
+        )
+    } else if f < MB {
+        format!("{:.2} KB", f / KB)
+    } else if f < GB {
+        format!("{:.2} MB", f / MB)
+    } else {
+        format!("{:.2} GB", f / GB)
+    }
+}