//===- Timer.h ----------------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLD_COMMON_TIMER_H
#define LLD_COMMON_TIMER_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringRef.h"
#include <assert.h>
#include <atomic>
#include <chrono>
#include <map>
#include <memory>
#include <vector>
namespace lld {
class Timer;
struct ScopedTimer {
explicit ScopedTimer(Timer &t);
~ScopedTimer();
void stop();
std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
Timer *t = nullptr;
};
class Timer {
public:
Timer(llvm::StringRef name, Timer &parent);
// Creates the root timer.
explicit Timer(llvm::StringRef name);
void addToTotal(std::chrono::nanoseconds time) { total += time.count(); }
void print();
double millis() const;
private:
void print(int depth, double totalDuration, bool recurse = true) const;
std::atomic<std::chrono::nanoseconds::rep> total;
std::vector<Timer *> children;
std::string name;
};
} // namespace lld
#endif