/usr/include/Poco/Stopwatch.h is in libpoco-dev 1.3.6p1-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | //
// Stopwatch.h
//
// $Id: //poco/1.3/Foundation/include/Poco/Stopwatch.h#3 $
//
// Library: Foundation
// Package: DateTime
// Module: Stopwatch
//
// Definition of the Stopwatch class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#ifndef Foundation_Stopwatch_INCLUDED
#define Foundation_Stopwatch_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Timestamp.h"
namespace Poco {
class Foundation_API Stopwatch
/// A simple facility to measure time intervals
/// with microsecond resolution.
///
/// Note that Stopwatch is based on the Timestamp
/// class. Therefore, if during a Stopwatch run,
/// the system time is changed, the measured time
/// will not be correct.
{
public:
Stopwatch();
~Stopwatch();
void start();
/// Starts (or restarts) the stopwatch.
void stop();
/// Stops or pauses the stopwatch.
void reset();
/// Resets the stopwatch.
void restart();
/// Resets and starts the stopwatch.
Timestamp::TimeDiff elapsed() const;
/// Returns the elapsed time in microseconds
/// since the stopwatch started.
int elapsedSeconds() const;
/// Returns the number of seconds elapsed
/// since the stopwatch started.
static Timestamp::TimeVal resolution();
/// Returns the resolution of the stopwatch.
private:
Stopwatch(const Stopwatch&);
Stopwatch& operator = (const Stopwatch&);
Timestamp _start;
Timestamp::TimeDiff _elapsed;
bool _running;
};
//
// inlines
//
inline void Stopwatch::start()
{
if (!_running)
{
_start.update();
_running = true;
}
}
inline void Stopwatch::stop()
{
if (_running)
{
Timestamp current;
_elapsed += current - _start;
_running = false;
}
}
inline int Stopwatch::elapsedSeconds() const
{
return int(elapsed()/resolution());
}
inline Timestamp::TimeVal Stopwatch::resolution()
{
return Timestamp::resolution();
}
} // namespace Poco
#endif // Foundation_Stopwatch_INCLUDED
|