Added router benchmarks

Server.go

@@ -8,9 +8,6 @@ import (
 	"git.akyoto.dev/go/router"
 )
 
-// Handler is a function that deals with the given request/response context.
-type Handler func(Context) error
-
 // Server represents a single web service.
 type Server struct {
 	router *router.Router[Handler]
@@ -43,15 +40,21 @@ func (server *Server) Put(path string, handler Handler) {
 	server.router.Add(http.MethodPut, path, handler)
 }
 
+// Router returns the router used by the server.
+func (server *Server) Router() *router.Router[Handler] {
+	return server.router
+}
+
 // ServeHTTP responds to the given request.
 func (server *Server) ServeHTTP(response http.ResponseWriter, request *http.Request) {
 	ctx := newContext(request, response)
+	defer contextPool.Put(ctx)
+
 	handler := server.router.LookupNoAlloc(request.Method, request.URL.Path, ctx.addParameter)
 
 	if handler == nil {
 		response.WriteHeader(http.StatusNotFound)
 		response.(io.StringWriter).WriteString(http.StatusText(http.StatusNotFound))
-		contextPool.Put(ctx)
 		return
 	}
 
@@ -61,6 +64,4 @@ func (server *Server) ServeHTTP(response http.ResponseWriter, request *http.Requ
 		response.(io.StringWriter).WriteString(err.Error())
 		log.Println(request.URL, err)
 	}
-
-	contextPool.Put(ctx)
 }