*_handler.go -> serve_*.go

server/serve_stats.go

@@ -0,0 +1,39 @@
+// Copyright 2013 The Chihaya Authors. All rights reserved.
+// Use of this source code is governed by the BSD 2-Clause license,
+// which can be found in the LICENSE file.
+
+package server
+
+import (
+	"encoding/json"
+	"net/http"
+	"sync/atomic"
+	"time"
+
+	"github.com/chihaya/chihaya/config"
+)
+
+type stats struct {
+	Uptime config.Duration `json:"uptime"`
+	RPM    int64           `json:"req_per_min"`
+}
+
+func (s *Server) serveStats(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+
+	stats, _ := json.Marshal(&stats{
+		config.Duration{time.Now().Sub(s.startTime)},
+		s.rpm,
+	})
+
+	length, _ := w.Write(stats)
+	w.Header().Set("Content-Length", string(length))
+	w.(http.Flusher).Flush()
+}
+
+func (s *Server) updateStats() {
+	for _ = range time.NewTicker(time.Minute).C {
+		s.rpm = s.deltaRequests
+		atomic.StoreInt64(&s.deltaRequests, 0)
+	}
+}