X-Git-Url: https://git.saurik.com/apple/system_cmds.git/blobdiff_plain/1a7e3f61d38d679bba59130891c2031b5a0092b6..bd6521f0fc816ab056bc71376f9706a69b3b52c1:/CPPUtil/UtilTimer.cpp?ds=inline

diff --git a/CPPUtil/UtilTimer.cpp b/CPPUtil/UtilTimer.cpp
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--- /dev/null
+++ b/CPPUtil/UtilTimer.cpp
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+//
+//  UtilTimer.cpp
+//  CPPUtil
+//
+//  Created by James McIlree on 10/9/13.
+//  Copyright (c) 2013 Apple. All rights reserved.
+//
+
+#include "CPPUtil.h"
+
+BEGIN_UTIL_NAMESPACE
+
+static mach_timebase_info_data_t timebase_info;
+
+Timer::Timer(const char* message) : _message(message) {
+	// C++ guarantees that static variable initialization is thread safe.
+	// We don't actually care what the returned value is, we just want to init timebase_info
+	// The pragma prevents spurious warnings.
+	static kern_return_t blah = mach_timebase_info(&timebase_info);
+#pragma unused(blah)
+
+	_start = AbsTime::now(); // Do this after the initialization check.
+}
+
+Timer::~Timer()
+{
+	_end = AbsTime::now();
+	printf("%s: %5.5f seconds\n", _message.c_str(), (double)(_end - _start).nano_time().value() / (double)NANOSECONDS_PER_SECOND);
+}
+
+END_UTIL_NAMESPACE