max-age should be an integer + docs

examples/config.nru

@@ -3,6 +3,25 @@
 # Iodine can run both Rack and NeoRack applications.
 # 
 # In this case the `on_http` implementation will be prioritized over the `call` implementation.
+# 
+# Benchmark with keep-alive:
+#
+#     ab -c 200 -t 4 -n 1000000 -k http://127.0.0.1:3000/
+#     wrk -c200 -d4 -t2 http://localhost:3000/
+#
+# Connect to chat server with WebSockets:
+#
+#     ws = new WebSocket("ws://" + document.location.host + document.location.pathname);
+#     ws.onmessage = function(e) {console.log("Got message!"); console.log(e.data);};
+#     ws.onclose = function(e) {console.log("closed")};
+#     ws.onopen = function(e) {ws.send("hi");};
+#
+# Listen to chat messages with Server Sent Events (EventSource / SSE):
+#
+#     const listener = new EventSource(document.location.href);
+#     listener.onmessage = (e) => { console.log(e); }
+#     listener.onevent = (e) => { console.log(e); }
+#
 module App
 	def self.call(e)
 		txt = []
@@ -23,6 +42,7 @@ module App
 		e.write "method:  #{e.method}\r\n"
 		e.write "version: #{e.version}\r\n"
 		e.write "from:    #{e.from} (real: #{e.peer_addr})\r\n"
+		# e.write "thread:  #{Thread.current.to_s}\r\n"
 		e.headers.each {|k,v| e.write "#{k}: #{v}\r\n" }
 		# echo request body to the response
 		while(l = e.gets)
@@ -35,6 +55,7 @@ module App
 		# this should optimally result in `content-length` being set by the server
 		out =  "path:    #{e.path}\r\nquery:   #{e.query}\r\nmethod:  #{e.method}\r\nversion: #{e.version}\r\n"
 		out += "from:    #{e.from} (#{e.peer_addr})\r\n"
+		# out += "thread:  #{Thread.current.to_s}\r\n"
 		e.headers.each {|k,v| out += "#{k}: #{v}\r\n" }
 		# echo request body to the response
 		while(l = e.gets)

ext/iodine/iodine_cli.h

@@ -143,8 +143,8 @@ static VALUE iodine_cli_parse(VALUE self, VALUE required) {
       FIO_CLI_INT("--keep-alive -k (" FIO_MACRO2STR(
           FIO_HTTP_DEFAULT_TIMEOUT) ") HTTP keep-alive timeout in seconds "
                                     "(0..255)"),
-      FIO_CLI_BOOL("--max-age -maxage (3600) default Max-Age header value for "
-                   "static files."),
+      FIO_CLI_INT("--max-age -maxage (3600) default Max-Age header value for "
+                  "static files."),
       FIO_CLI_BOOL("--log -v log HTTP messages."),
 
       FIO_CLI_PRINT_HEADER("WebSocket / SSE"),