From 7ab5c2d0380a4c9f32e8141def7d9e41bfdb315d Mon Sep 17 00:00:00 2001
From: Alex Zolotarev <deathbaba@gmail.com>
Date: Sun, 12 Jun 2011 18:47:00 +0300
Subject: [PATCH] Replaced boost timer implementation with gettimeofday and
 GetSystemTimeAsFileTime

---
 base/base.pro  |  1 +
 base/timer.cpp | 41 +++++++++++++++++++++++++++++++++++++++++
 base/timer.hpp | 30 ++++++++++++------------------
 3 files changed, 54 insertions(+), 18 deletions(-)
 create mode 100644 base/timer.cpp

diff --git a/base/base.pro b/base/base.pro
index ae2dd355fc..bbc5bbfa6d 100644
--- a/base/base.pro
+++ b/base/base.pro
@@ -23,6 +23,7 @@ SOURCES += \
     lower_case.cpp \
     normalize_unicode.cpp \
     runner.cpp \
+    timer.cpp \
 
 HEADERS += \
     SRC_FIRST.hpp \
diff --git a/base/timer.cpp b/base/timer.cpp
new file mode 100644
index 0000000000..c544447624
--- /dev/null
+++ b/base/timer.cpp
@@ -0,0 +1,41 @@
+#include "timer.hpp"
+
+#include "../std/target_os.hpp"
+#include "../std/time.hpp"
+
+namespace my
+{
+
+Timer::Timer()
+{
+  Reset();
+}
+
+double Timer::LocalTime() const
+{
+#ifdef OMIM_OS_WINDOWS
+  FILETIME ft;
+  GetSystemTimeAsFileTime(&ft);
+  uint64_t val = ft.dwHighDateTime;
+  val <<= 32;
+  val += ft.dwLowDateTime;
+  return val / 10000000.0;
+
+#else
+  timeval tv;
+  gettimeofday(&tv, 0);
+  return tv.tv_sec + tv.tv_usec / 1000000.0;
+#endif
+}
+
+double Timer::ElapsedSeconds() const
+{
+  return LocalTime() - m_startTime;
+}
+
+void Timer::Reset()
+{
+  m_startTime = LocalTime();
+}
+
+}
diff --git a/base/timer.hpp b/base/timer.hpp
index e74f2d81e0..d08c5eb30e 100644
--- a/base/timer.hpp
+++ b/base/timer.hpp
@@ -1,25 +1,19 @@
 #pragma once
-#include "base.hpp"
-
-#define BOOST_DATE_TIME_NO_LIB
-#include <boost/date_time/posix_time/posix_time.hpp>
 
 namespace my
 {
-  /// Cross platform timer
-  class Timer
-  {
-  public:
-    Timer() { Reset(); }
-    double ElapsedSeconds() const
-    {
-      return (boost::posix_time::microsec_clock::local_time() - m_StartTime).total_milliseconds()
-          / 1000.0;
-    }
 
-    void Reset() { m_StartTime = boost::posix_time::microsec_clock::local_time(); }
-  private:
-    boost::posix_time::ptime m_StartTime;
-  };
+/// Cross platform timer
+class Timer
+{
+  double m_startTime;
+
+  double LocalTime() const;
+
+public:
+  Timer();
+  double ElapsedSeconds() const;
+  void Reset();
+};
 
 }