56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
|
//===----------------------------------------------------------------------===////
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
||
|
|
// Source Licenses. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===////
|
||
|
|
|
||
|
|
#ifndef TIMER_HPP
|
||
|
|
#define TIMER_HPP
|
||
|
|
|
||
|
|
// Define LIBCXXABI_NO_TIMER to disable testing with a timer.
|
||
|
|
#ifndef LIBCXXABI_NO_TIMER
|
||
|
|
|
||
|
|
#include <chrono>
|
||
|
|
#include <iostream>
|
||
|
|
|
||
|
|
class timer
|
||
|
|
{
|
||
|
|
typedef std::chrono::high_resolution_clock Clock;
|
||
|
|
typedef Clock::time_point TimePoint;
|
||
|
|
typedef std::chrono::microseconds MicroSeconds;
|
||
|
|
public:
|
||
|
|
timer() : m_start(Clock::now()) {}
|
||
|
|
|
||
|
|
timer(timer const &) = delete;
|
||
|
|
timer & operator=(timer const &) = delete;
|
||
|
|
|
||
|
|
~timer()
|
||
|
|
{
|
||
|
|
using std::chrono::duration_cast;
|
||
|
|
TimePoint end = Clock::now();
|
||
|
|
MicroSeconds us = duration_cast<MicroSeconds>(end - m_start);
|
||
|
|
std::cout << us.count() << " microseconds\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
TimePoint m_start;
|
||
|
|
};
|
||
|
|
|
||
|
|
#else /* LIBCXXABI_NO_TIMER */
|
||
|
|
|
||
|
|
class timer
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
timer() {}
|
||
|
|
timer(timer const &) = delete;
|
||
|
|
timer & operator=(timer const &) = delete;
|
||
|
|
~timer() {}
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* LIBCXXABI_NO_TIMER */
|
||
|
|
|
||
|
|
#endif /* TIMER_HPP */
|