From 5973e7ebe16d4c35078ddac1a5c8150f56cb6463 Mon Sep 17 00:00:00 2001
From: Thulinma <jaron@vietors.com>
Date: Fri, 16 May 2014 19:45:02 +0200
Subject: [PATCH] Added Util::bootSecs() for reliable time since boot
 measurements.

---
 lib/timing.cpp | 7 +++++++
 lib/timing.h   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/lib/timing.cpp b/lib/timing.cpp
index b1cc7ca8..b253f194 100644
--- a/lib/timing.cpp
+++ b/lib/timing.cpp
@@ -4,6 +4,7 @@
 #include "timing.h"
 #include <sys/time.h>//for gettimeofday
 #include <time.h>//for time and nanosleep
+#include <sys/sysinfo.h> //forsysinfo
 
 //emulate clock_gettime() for OSX compatibility
 #if defined(__APPLE__) || defined(__MACH__)
@@ -48,6 +49,12 @@ long long int Util::getMS(){
   return ((long long int)t.tv_sec) * 1000 + t.tv_nsec / 1000000;
 }
 
+long long int Util::bootSecs(){
+  struct sysinfo sinfo;
+  sysinfo(&sinfo);
+  return sinfo.uptime;
+}
+
 /// Gets the current time in microseconds.
 long long unsigned int Util::getMicros(){
   struct timespec t;
diff --git a/lib/timing.h b/lib/timing.h
index 4e141e50..e2a4313b 100644
--- a/lib/timing.h
+++ b/lib/timing.h
@@ -6,6 +6,7 @@
 namespace Util {
   void sleep(int ms); ///< Sleeps for the indicated amount of milliseconds or longer.
   long long int getMS(); ///< Gets the current time in milliseconds.
+  long long int bootSecs(); ///< Gets the current system uptime in seconds.
   long long unsigned int getMicros();///<Gets the current time in microseconds.
   long long unsigned int getMicros(long long unsigned int previous);///<Gets the time difference in microseconds.
   long long int getNTP();