From 25a3fcf731e61e252f27735689bd1c2779225aac Mon Sep 17 00:00:00 2001
From: Bradley Cicenas <bradley@vektor.nyc>
Date: Wed, 28 Jun 2017 12:12:24 +0000
Subject: [PATCH] add runtimestats, stack logging to debug

---
 debug.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/debug.go b/debug.go
index bbcab06..683c8e8 100644
--- a/debug.go
+++ b/debug.go
@@ -3,11 +3,14 @@ package main
 import (
 	"fmt"
 	"reflect"
+	"runtime"
 
 	"github.com/bcicen/ctop/container"
 	ui "github.com/gizak/termui"
 )
 
+var mstats = &runtime.MemStats{}
+
 func logEvent(e ui.Event) {
 	var s string
 	s += fmt.Sprintf("Type=%s", quote(e.Type))
@@ -19,6 +22,22 @@ func logEvent(e ui.Event) {
 	log.Debugf("new event: %s", s)
 }
 
+func runtimeStats() {
+	var msg string
+	msg += fmt.Sprintf("cgo calls=%v", runtime.NumCgoCall())
+	msg += fmt.Sprintf(" routines=%v", runtime.NumGoroutine())
+	runtime.ReadMemStats(mstats)
+	msg += fmt.Sprintf(" numgc=%v", mstats.NumGC)
+	msg += fmt.Sprintf(" alloc=%v", mstats.Alloc)
+	log.Debugf("runtime: %v", msg)
+}
+
+func runtimeStack() {
+	buf := make([]byte, 32768)
+	buf = buf[:runtime.Stack(buf, true)]
+	log.Infof(fmt.Sprintf("stack:\n%v", string(buf)))
+}
+
 // log container, metrics, and widget state
 func dumpContainer(c *container.Container) {
 	msg := fmt.Sprintf("logging state for container: %s\n", c.Id)