forked from OSchip/llvm-project
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
//===-- Timer.cpp --------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Timer.h"
|
|
|
|
#include <chrono>
|
|
#include <fstream>
|
|
|
|
namespace __llvm_libc {
|
|
namespace testing {
|
|
|
|
struct TimerImplementation {
|
|
std::chrono::high_resolution_clock::time_point Start;
|
|
std::chrono::high_resolution_clock::time_point End;
|
|
};
|
|
|
|
Timer::Timer() : Impl(new TimerImplementation) {}
|
|
|
|
Timer::~Timer() { delete reinterpret_cast<TimerImplementation *>(Impl); }
|
|
|
|
void Timer::start() {
|
|
auto T = reinterpret_cast<TimerImplementation *>(Impl);
|
|
T->Start = std::chrono::high_resolution_clock::now();
|
|
}
|
|
|
|
void Timer::stop() {
|
|
auto T = reinterpret_cast<TimerImplementation *>(Impl);
|
|
T->End = std::chrono::high_resolution_clock::now();
|
|
}
|
|
|
|
uint64_t Timer::nanoseconds() const {
|
|
auto T = reinterpret_cast<TimerImplementation *>(Impl);
|
|
return std::chrono::nanoseconds(T->End - T->Start).count();
|
|
}
|
|
|
|
} // namespace testing
|
|
} // namespace __llvm_libc
|