//===-- llvm/Support/Timer.h - Interval Timing Support ----------*- C++ -*-===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// This file defines three classes: Timer, TimeRegion, and TimerGroup,
#ifndef LLVM_SUPPORT_TIMER_H
#define LLVM_SUPPORT_TIMER_H
+#include "llvm/Support/DataTypes.h"
#include <string>
#include <vector>
#include <iosfwd>
/// support it can also keep track of the RSS of the program at various points.
/// By default, the Timer will print the amount of time it has captured to
/// standard error when the laster timer is destroyed, otherwise it is printed
-/// when it's TimerGroup is destroyed. Timer's do not print their information
+/// when its TimerGroup is destroyed. Timers do not print their information
/// if they are never started.
///
class Timer {
double Elapsed; // Wall clock time elapsed in seconds
double UserTime; // User time elapsed
double SystemTime; // System time elapsed
- size_t MemUsed; // Memory allocated (in bytes)
+ ssize_t MemUsed; // Memory allocated (in bytes)
size_t PeakMem; // Peak memory used
size_t PeakMemBase; // Temporary for peak calculation...
std::string Name; // The name of this time variable
bool Started; // Has this time variable ever been started?
TimerGroup *TG; // The TimerGroup this Timer is in.
public:
- Timer(const std::string &N);
+ explicit Timer(const std::string &N);
Timer(const std::string &N, TimerGroup &tg);
Timer(const Timer &T);
~Timer();
double getProcessTime() const { return UserTime+SystemTime; }
double getWallTime() const { return Elapsed; }
- size_t getMemUsed() const { return MemUsed; }
+ ssize_t getMemUsed() const { return MemUsed; }
size_t getPeakMem() const { return PeakMem; }
std::string getName() const { return Name; }
return Elapsed < T.Elapsed;
}
bool operator>(const Timer &T) const { return T.operator<(*this); }
-
+
/// startTimer - Start the timer running. Time between calls to
/// startTimer/stopTimer is counted by the Timer class. Note that these calls
/// must be correctly paired.
Timer &T;
TimeRegion(const TimeRegion &); // DO NOT IMPLEMENT
public:
- TimeRegion(Timer &t) : T(t) {
+ explicit TimeRegion(Timer &t) : T(t) {
T.startTimer();
}
~TimeRegion() {
/// is primarily used for debugging and for hunting performance problems.
///
struct NamedRegionTimer : public TimeRegion {
- NamedRegionTimer(const std::string &Name);
+ explicit NamedRegionTimer(const std::string &Name);
+ explicit NamedRegionTimer(const std::string &Name,
+ const std::string &GroupName);
};
unsigned NumTimers;
std::vector<Timer> TimersToPrint;
public:
- TimerGroup(const std::string &name) : Name(name), NumTimers(0) {}
+ explicit TimerGroup(const std::string &name) : Name(name), NumTimers(0) {}
~TimerGroup() {
assert(NumTimers == 0 &&
"TimerGroup destroyed before all contained timers!");