system_cmds-643.30.1.tar.gz

[apple/system_cmds.git] / CPPUtil / UtilAbsTime.cpp

diff --git a/CPPUtil/UtilAbsTime.cpp b/CPPUtil/UtilAbsTime.cpp
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+//
+//  UtilAbsTime.cpp
+//  CPPUtil
+//
+//  Created by James McIlree on 4/14/13.
+//  Copyright (c) 2013 Apple. All rights reserved.
+//
+
+#include "CPPUtil.h"
+
+BEGIN_UTIL_NAMESPACE
+
+const AbsTime AbsTime::BEGINNING_OF_TIME = AbsTime(0ULL);
+const AbsTime AbsTime::END_OF_TIME = AbsTime(UINT64_MAX);
+
+AbsTime AbsTime::now() {
+    return AbsTime(mach_absolute_time());
+}
+
+NanoTime AbsTime::nano_time() const {
+    mach_timebase_info_data_t timebase_info;
+    mach_timebase_info(&timebase_info);
+    return NanoTime(_time * timebase_info.numer  / timebase_info.denom);
+}
+
+NanoTime AbsTime::nano_time(mach_timebase_info_data_t timebase_info) const {
+    return NanoTime(_time * timebase_info.numer  / timebase_info.denom);
+}
+
+END_UTIL_NAMESPACE