Impl From<usize> and From<Option<usize>> for KeepAlive

src/server/mod.rs

@@ -44,6 +44,22 @@ pub enum KeepAlive {
     Disabled,
 }
 
+impl From<usize> for KeepAlive {
+    fn from(keepalive: usize) -> Self {
+        KeepAlive::Timeout(keepalive)
+    }
+}
+
+impl From<Option<usize>> for KeepAlive {
+    fn from(keepalive: Option<usize>) -> Self {
+        if let Some(keepalive) = keepalive {
+            KeepAlive::Timeout(keepalive)
+        } else {
+            KeepAlive::Disabled
+        }
+    }
+}
+
 /// Pause accepting incoming connections
 ///
 /// If socket contains some pending connection, they might be dropped.

src/server/srv.rs

@@ -124,8 +124,8 @@ impl<H> HttpServer<H> where H: IntoHttpHandler + 'static
     /// Set server keep-alive setting.
     ///
     /// By default keep alive is set to a `Os`.
-    pub fn keep_alive(mut self, val: KeepAlive) -> Self {
-        self.keep_alive = val;
+    pub fn keep_alive<T: Into<KeepAlive>>(mut self, val: T) -> Self {
+        self.keep_alive = val.into();
         self
     }