timespan.h

This software aims to create an applet and panel tools to manage a wireless interface card, such as

//
// Timespan.h
//
// $Id: //poco/Main/Foundation/include/Foundation/Timespan.h#5 $
//
// Definition of the Timespan class.
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// 3. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//


#ifndef Foundation_Timespan_INCLUDED
#define Foundation_Timespan_INCLUDED


#ifndef Foundation_Foundation_INCLUDED
#include "Foundation/Foundation.h"
#endif
#ifndef Foundation_Timestamp_INCLUDED
#include "Foundation/Timestamp.h"
#endif


Foundation_BEGIN


class Foundation_API Timespan
	/// A class that represents time spans up to microsecond resolution.
{
public:
	typedef Timestamp::TimeDiff TimeDiff;

	Timespan();
		/// Creates a zero Timespan.
		
	Timespan(TimeDiff microseconds);
		/// Creates a Timespan.
		
	Timespan(int days, int hours, int minutes, int seconds, int microseconds);
		/// Creates a Timespan.

	Timespan(const Timespan& timespan);
		/// Creates a Timespan from another one.

	~Timespan();
		/// Destroys the Timespan.

	Timespan& operator = (const Timespan& timespan);
		/// Assignment operator.

	Timespan& operator = (TimeDiff microseconds);
		/// Assignment operator.
		
	Timespan& assign(int days, int hours, int minutes, int seconds, int microseconds);
		/// Assigns a new span.

	bool operator == (const Timespan& ts) const;
	bool operator != (const Timespan& ts) const;
	bool operator >  (const Timespan& ts) const;
	bool operator >= (const Timespan& ts) const;
	bool operator <  (const Timespan& ts) const;
	bool operator <= (const Timespan& ts) const;

	bool operator == (TimeDiff microseconds) const;
	bool operator != (TimeDiff microseconds) const;
	bool operator >  (TimeDiff microseconds) const;
	bool operator >= (TimeDiff microseconds) const;
	bool operator <  (TimeDiff microseconds) const;
	bool operator <= (TimeDiff microseconds) const;
	
	Timespan operator + (const Timespan& d) const;
	Timespan operator - (const Timespan& d) const;
	Timespan& operator += (const Timespan& d);
	Timespan& operator -= (const Timespan& d);

	Timespan operator + (TimeDiff microseconds) const;
	Timespan operator - (TimeDiff microseconds) const;
	Timespan& operator += (TimeDiff microseconds);
	Timespan& operator -= (TimeDiff microseconds);

	int days() const;
		/// Returns the number of days.
		
	int hours() const;
		/// Returns the number of hours (0 to 23).
		
	int totalHours() const;
		/// Returns the total number of hours.
		
	int minutes() const;
		/// Returns the number of minutes (0 to 59).
		
	int totalMinutes() const;
		/// Returns the total number of minutes.
		
	int seconds() const;
		/// Returns the number of seconds (0 to 59).
		
	int totalSeconds() const;
		/// Returns the total number of seconds.
		
	int milliseconds() const;
		/// Returns the number of milliseconds (0 to 999).
		
	TimeDiff totalMilliseconds() const;
		/// Returns the total number of milliseconds.
		
	int microseconds() const;
		/// Returns the number of microseconds (0 to 999).
		
	TimeDiff totalMicroseconds() const;
		/// Returns the total number of microseconds.

	static const TimeDiff MILLISECONDS; /// The number of microseconds in a millisecond.
	static const TimeDiff SECONDS;      /// The number of microseconds in a second.
	static const TimeDiff MINUTES;      /// The number of microseconds in a minute.
	static const TimeDiff HOURS;        /// The number of microseconds in a hour.
	static const TimeDiff DAYS;         /// The number of microseconds in a day.

private:
	TimeDiff _span;
};


//
// inlines
//
inline int Timespan::days() const
{
	return int(_span/DAYS);
}


inline int Timespan::hours() const
{
	return int((_span/HOURS) % 24);
}

	
inline int Timespan::totalHours() const
{
	return int(_span/HOURS);
}

	
inline int Timespan::minutes() const
{
	return int((_span/MINUTES) % 60);
}

	
inline int Timespan::totalMinutes() const
{
	return int(_span/MINUTES);
}

	
inline int Timespan::seconds() const
{
	return int((_span/SECONDS) % 60);
}

	
inline int Timespan::totalSeconds() const
{
	return int(_span/SECONDS);
}

	
inline int Timespan::milliseconds() const
{
	return int((_span/MILLISECONDS) % 1000);
}

	
inline Timespan::TimeDiff Timespan::totalMilliseconds() const
{
	return _span/MILLISECONDS;
}

	
inline int Timespan::microseconds() const
{
	return int(_span % 1000);
}

	
inline Timespan::TimeDiff Timespan::totalMicroseconds() const
{
	return _span;
}


inline bool Timespan::operator == (const Timespan& ts) const
{
	return _span == ts._span;
}


inline bool Timespan::operator != (const Timespan& ts) const
{
	return _span != ts._span;
}


inline bool Timespan::operator >  (const Timespan& ts) const
{
	return _span > ts._span;
}


inline bool Timespan::operator >= (const Timespan& ts) const
{
	return _span >= ts._span;
}


inline bool Timespan::operator <  (const Timespan& ts) const
{
	return _span < ts._span;
}


inline bool Timespan::operator <= (const Timespan& ts) const
{
	return _span <= ts._span;
}


inline bool Timespan::operator == (TimeDiff microseconds) const
{
	return _span == microseconds;
}


inline bool Timespan::operator != (TimeDiff microseconds) const
{
	return _span != microseconds;
}


inline bool Timespan::operator >  (TimeDiff microseconds) const
{
	return _span > microseconds;
}


inline bool Timespan::operator >= (TimeDiff microseconds) const
{
	return _span >= microseconds;
}


inline bool Timespan::operator <  (TimeDiff microseconds) const
{
	return _span < microseconds;
}


inline bool Timespan::operator <= (TimeDiff microseconds) const
{
	return _span <= microseconds;
}


Foundation_END


#endif // Foundation_Timespan_INCLUDED