You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
2.5 KiB
113 lines
2.5 KiB
/*
|
|
|
|
Copyright (C) 2002 Stefan Westerfeld
|
|
stefan@space.twc.de
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with this library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
|
|
*/
|
|
|
|
#include "timestampmath.h"
|
|
#include <arts/debug.h>
|
|
#include <stdio.h>
|
|
|
|
using namespace std;
|
|
|
|
namespace Arts {
|
|
void timeStampInc(TimeStamp& t, const TimeStamp& delta)
|
|
{
|
|
/* expect a normalized t, delta */
|
|
arts_return_if_fail(t.usec >= 0 && t.usec < 1000000);
|
|
arts_return_if_fail(delta.usec >= 0 && delta.usec < 1000000);
|
|
|
|
t.sec += delta.sec;
|
|
t.usec += delta.usec;
|
|
|
|
if (t.usec >= 1000000)
|
|
{
|
|
t.usec -= 1000000;
|
|
t.sec += 1;
|
|
}
|
|
|
|
arts_assert (t.usec >= 0 && t.usec < 1000000);
|
|
}
|
|
|
|
void timeStampDec(TimeStamp& t, const TimeStamp& delta)
|
|
{
|
|
/* expect a normalized t, delta */
|
|
arts_return_if_fail(t.usec >= 0 && t.usec < 1000000);
|
|
arts_return_if_fail(delta.usec >= 0 && delta.usec < 1000000);
|
|
|
|
t.sec -= delta.sec;
|
|
t.usec -= delta.usec;
|
|
|
|
if(t.usec < 0)
|
|
{
|
|
t.usec += 1000000;
|
|
t.sec -= 1;
|
|
}
|
|
|
|
arts_assert(t.usec >= 0 && t.usec < 1000000);
|
|
}
|
|
|
|
string timeStampToString(const TimeStamp& t)
|
|
{
|
|
arts_return_val_if_fail(t.usec >= 0 && t.usec < 1000000, "");
|
|
|
|
char buffer[1024];
|
|
if(t.sec < 0 && t.usec != 0)
|
|
{
|
|
sprintf(buffer, "-%d.%06d", -t.sec-1, 1000000-t.usec);
|
|
}
|
|
else
|
|
{
|
|
sprintf(buffer, "%d.%06d", t.sec, t.usec);
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
double timeStampToDouble(const TimeStamp& t)
|
|
{
|
|
arts_return_val_if_fail(t.usec >= 0 && t.usec < 1000000, 0.0);
|
|
|
|
return double(t.sec) + double(t.usec)/1000000.0;
|
|
}
|
|
|
|
TimeStamp timeStampFromDouble(double d)
|
|
{
|
|
TimeStamp t;
|
|
|
|
arts_return_val_if_fail(d >= 0, t);
|
|
|
|
t.sec = int(d);
|
|
d -= t.sec;
|
|
t.usec = int(d * 1000000.0);
|
|
|
|
return t;
|
|
}
|
|
|
|
TimeStamp timeStampMax(const TimeStamp& t1, const TimeStamp& t2)
|
|
{
|
|
if(t1.sec > t2.sec)
|
|
return t1;
|
|
else if((t1.sec == t2.sec) && (t1.usec > t2.usec))
|
|
return t1;
|
|
else
|
|
return t2;
|
|
}
|
|
|
|
}
|