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Doxygenize class comments. Add new NamedRegionTimer class

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8888 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-10-06 15:02:16 +00:00
parent 378b524ba0
commit aacd3c8d86
2 changed files with 64 additions and 40 deletions
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52
include/Support/Timer.h
View File

@ -1,24 +1,7 @@
//===-- Support/Timer.h - Interval Timing Support ---------------*- C++ -*-===//
//
// This file defines three classes: Timer, TimeRegion, and TimerGroup.
//
// The Timer class is used to track the amount of time spent between invocations
// of it's startTimer()/stopTimer() methods. Given appropriate OS 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 if they are
// never started.
//
// The TimeRegion class is used as a helper class to call the startTimer() and
// stopTimer() methods of the Timer class. When the object is constructed, it
// starts the timer specified as it's argument. When it is destroyed, it stops
// the relevant timer. This makes it easy to time a region of code.
//
// The TimerGroup class is used to group together related timers into a single
// report that is printed when the TimerGroup is destroyed. It is illegal to
// destroy a TimerGroup object before all of the Timers in it are gone. A
// TimerGroup can be specified for a newly created timer in its constructor.
// This file defines three classes: Timer, TimeRegion, and TimerGroup,
// documented below.
//
//===----------------------------------------------------------------------===//
@ -32,6 +15,14 @@
class TimerGroup;
/// Timer - This class is used to track the amount of time spent between
/// invocations of it's startTimer()/stopTimer() methods. Given appropriate OS
/// 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
/// if they are never started.
///
class Timer {
double Elapsed; // Wall clock time elapsed in seconds
double UserTime; // User time elapsed
@ -52,7 +43,7 @@ public:
double getWallTime() const { return Elapsed; }
long getMemUsed() const { return MemUsed; }
long getPeakMem() const { return PeakMem; }
std::string getName() const { return Name; }
std::string getName() const { return Name; }
const Timer &operator=(const Timer &T) {
Elapsed = T.Elapsed;
@ -106,6 +97,11 @@ private:
};
/// The TimeRegion class is used as a helper class to call the startTimer() and
/// stopTimer() methods of the Timer class. When the object is constructed, it
/// starts the timer specified as it's argument. When it is destroyed, it stops
/// the relevant timer. This makes it easy to time a region of code.
///
class TimeRegion {
Timer &T;
TimeRegion(const TimeRegion &); // DO NOT IMPLEMENT
@ -118,6 +114,22 @@ public:
}
};
/// NamedRegionTimer - This class is basically a combination of TimeRegion and
/// Timer. It allows you to declare a new timer, AND specify the region to
/// time, all in one statement. All timers with the same name are merged. This
/// is primarily used for debugging and for hunting performance problems.
///
struct NamedRegionTimer : public TimeRegion {
NamedRegionTimer(const std::string &Name);
};
/// The TimerGroup class is used to group together related timers into a single
/// report that is printed when the TimerGroup is destroyed. It is illegal to
/// destroy a TimerGroup object before all of the Timers in it are gone. A
/// TimerGroup can be specified for a newly created timer in its constructor.
///
class TimerGroup {
std::string Name;
unsigned NumTimers;

52
include/llvm/Support/Timer.h
View File

@ -1,24 +1,7 @@
//===-- Support/Timer.h - Interval Timing Support ---------------*- C++ -*-===//
//
// This file defines three classes: Timer, TimeRegion, and TimerGroup.
//
// The Timer class is used to track the amount of time spent between invocations
// of it's startTimer()/stopTimer() methods. Given appropriate OS 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 if they are
// never started.
//
// The TimeRegion class is used as a helper class to call the startTimer() and
// stopTimer() methods of the Timer class. When the object is constructed, it
// starts the timer specified as it's argument. When it is destroyed, it stops
// the relevant timer. This makes it easy to time a region of code.
//
// The TimerGroup class is used to group together related timers into a single
// report that is printed when the TimerGroup is destroyed. It is illegal to
// destroy a TimerGroup object before all of the Timers in it are gone. A
// TimerGroup can be specified for a newly created timer in its constructor.
// This file defines three classes: Timer, TimeRegion, and TimerGroup,
// documented below.
//
//===----------------------------------------------------------------------===//
@ -32,6 +15,14 @@
class TimerGroup;
/// Timer - This class is used to track the amount of time spent between
/// invocations of it's startTimer()/stopTimer() methods. Given appropriate OS
/// 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
/// if they are never started.
///
class Timer {
double Elapsed; // Wall clock time elapsed in seconds
double UserTime; // User time elapsed
@ -52,7 +43,7 @@ public:
double getWallTime() const { return Elapsed; }
long getMemUsed() const { return MemUsed; }
long getPeakMem() const { return PeakMem; }
std::string getName() const { return Name; }
std::string getName() const { return Name; }
const Timer &operator=(const Timer &T) {
Elapsed = T.Elapsed;
@ -106,6 +97,11 @@ private:
};
/// The TimeRegion class is used as a helper class to call the startTimer() and
/// stopTimer() methods of the Timer class. When the object is constructed, it
/// starts the timer specified as it's argument. When it is destroyed, it stops
/// the relevant timer. This makes it easy to time a region of code.
///
class TimeRegion {
Timer &T;
TimeRegion(const TimeRegion &); // DO NOT IMPLEMENT
@ -118,6 +114,22 @@ public:
}
};
/// NamedRegionTimer - This class is basically a combination of TimeRegion and
/// Timer. It allows you to declare a new timer, AND specify the region to
/// time, all in one statement. All timers with the same name are merged. This
/// is primarily used for debugging and for hunting performance problems.
///
struct NamedRegionTimer : public TimeRegion {
NamedRegionTimer(const std::string &Name);
};
/// The TimerGroup class is used to group together related timers into a single
/// report that is printed when the TimerGroup is destroyed. It is illegal to
/// destroy a TimerGroup object before all of the Timers in it are gone. A
/// TimerGroup can be specified for a newly created timer in its constructor.
///
class TimerGroup {
std::string Name;
unsigned NumTimers;