From 17a6fefc3b4b8de08661f706545e289453001120 Mon Sep 17 00:00:00 2001
From: Cooper Lees <cooper@fb.com>
Date: Thu, 25 Sep 2014 08:34:27 -0700
Subject: [PATCH] Go routine stat

---
 http/routes.go | 3 +++
 stats/stats.go | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/http/routes.go b/http/routes.go
index dbc0eeb..925e591 100644
--- a/http/routes.go
+++ b/http/routes.go
@@ -9,6 +9,7 @@ import (
 	"io/ioutil"
 	"net/http"
 	"net/url"
+	"runtime"
 
 	"github.com/julienschmidt/httprouter"
 
@@ -43,6 +44,8 @@ func (s *Server) stats(w http.ResponseWriter, r *http.Request, p httprouter.Para
 	var val interface{}
 	query := r.URL.Query()
 
+	stats.DefaultStats.GoRoutines = runtime.NumGoroutine()
+
 	if _, flatten := query["flatten"]; flatten {
 		val = stats.DefaultStats.Flattened()
 	} else {
diff --git a/stats/stats.go b/stats/stats.go
index 44a788e..49df774 100644
--- a/stats/stats.go
+++ b/stats/stats.go
@@ -73,6 +73,8 @@ type Stats struct {
 	ConnectionsAccepted uint64 `json:"Connections.Accepted"`
 	BytesTransmitted    uint64 `json:"BytesTransmitted"`
 
+	GoRoutines int `json:"Runtime.GoRoutines"`
+
 	RequestsHandled uint64 `json:"Requests.Handled"`
 	RequestsErrored uint64 `json:"Requests.Errored"`
 	ClientErrors    uint64 `json:"Requests.Bad"`
@@ -105,6 +107,8 @@ func New(cfg config.StatsConfig) *Stats {
 		Started: time.Now(),
 		events:  make(chan int, cfg.BufferSize),
 
+		GoRoutines: 0,
+
 		ipv4PeerEvents:     make(chan int, cfg.BufferSize),
 		ipv6PeerEvents:     make(chan int, cfg.BufferSize),
 		responseTimeEvents: make(chan time.Duration, cfg.BufferSize),