| 1 | //===-- Timer.cpp --------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "Timer.h" |
| 10 | |
| 11 | #include <chrono> |
| 12 | #include <fstream> |
| 13 | |
| 14 | namespace LIBC_NAMESPACE { |
| 15 | namespace testing { |
| 16 | |
| 17 | struct TimerImplementation { |
| 18 | std::chrono::high_resolution_clock::time_point Start; |
| 19 | std::chrono::high_resolution_clock::time_point End; |
| 20 | }; |
| 21 | |
| 22 | Timer::Timer() : Impl(new TimerImplementation) {} |
| 23 | |
| 24 | Timer::~Timer() { delete reinterpret_cast<TimerImplementation *>(Impl); } |
| 25 | |
| 26 | void Timer::start() { |
| 27 | auto T = reinterpret_cast<TimerImplementation *>(Impl); |
| 28 | T->Start = std::chrono::high_resolution_clock::now(); |
| 29 | } |
| 30 | |
| 31 | void Timer::stop() { |
| 32 | auto T = reinterpret_cast<TimerImplementation *>(Impl); |
| 33 | T->End = std::chrono::high_resolution_clock::now(); |
| 34 | } |
| 35 | |
| 36 | uint64_t Timer::nanoseconds() const { |
| 37 | auto T = reinterpret_cast<TimerImplementation *>(Impl); |
| 38 | return std::chrono::nanoseconds(T->End - T->Start).count(); |
| 39 | } |
| 40 | |
| 41 | } // namespace testing |
| 42 | } // namespace LIBC_NAMESPACE |
| 43 |