khanat-opennel-code/code/ryzom/server/src/pd_lib/timestamp.cpp
2013-07-27 04:03:05 +02:00

127 lines
3.1 KiB
C++

// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "timestamp.h"
/*
* Constructor
*/
CTimestamp::CTimestamp()
{
//setToCurrent();
//memset(&_Timestamp, 0, sizeof(_Timestamp));
_Time = 0;
}
uint gmtTime(uint year, uint month, uint day, uint hour, uint minute, uint second)
{
const uint nbisyear = 365*86400; // non bissextile years
const uint bisyear = 366*86400; // bissextile years
const uint nbismonths[] = {
86400*31, // jan
86400*28, // feb
86400*31, // mar
86400*30, // apr
86400*31, // may
86400*30, // jun
86400*31, // jul
86400*31, // aug
86400*30, // sep
86400*31, // oct
86400*30, // nov
86400*31 // dec
};
const uint bismonths[] = {
86400*31, // jan
86400*29, // feb
86400*31, // mar
86400*30, // apr
86400*31, // may
86400*30, // jun
86400*31, // jul
86400*31, // aug
86400*30, // sep
86400*31, // oct
86400*30, // nov
86400*31 // dec
};
uint gmt = 0;
uint i;
for (i=1970; i<year; ++i)
gmt += ( ((i&3) == 0 && ((i%100) != 0 || (i%400) == 0)) ? bisyear : nbisyear );
bool bissext = ( (year&3) == 0 && ((year%100) != 0 || (year%400) == 0));
for (i=0; i<month-1; ++i)
gmt += (bissext ? bismonths[i] : nbismonths[i]);
gmt += 86400*(day-1);
gmt += 3600*hour;
gmt += 60*minute;
gmt += second;
return gmt;
}
bool CTimestamp::fromString(const char* str)
{
uint year = 0, month = 0, day = 0, hour = 0, minute = 0, second = 0;
uint t;
if (str[0] == '#' || str[0] == '+' || str[0] == '-')
{
if (str[0] == '#')
{
setToCurrent();
++str;
}
if (_Time == 0)
setToCurrent();
sint dt;
NLMISC::fromString(std::string(str), dt);
++str;
while (*str >= '0' && *str <= '9')
++str;
if (*str == 'd' || *str == 'D')
dt *= 86400;
else if (*str == 'h' || *str == 'H')
dt *= 3600;
else if (*str == 'm' || *str == 'M')
dt *= 60;
_Time += dt;
}
else if (sscanf(str, "%d.%d.%d.%d.%d.%d", &year, &month, &day, &hour, &minute, &second) == 6 ||
sscanf(str, "%d.%d.%d.%d.%d", &year, &month, &day, &hour, &minute) == 5)
{
_Time = gmtTime(year, month, day, hour, minute, second);
}
else if (sscanf(str, "%8X", &t) == 1)
{
_Time = t;
}
return validate();
}