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1042 lines
28 KiB
1042 lines
28 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#include <float.h> |
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#include "plUnifiedTime.h" |
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#include "hsStlUtils.h" |
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#if HS_BUILD_FOR_UNIX |
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#include <sys/time.h> |
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#include <unistd.h> |
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#endif |
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#if HS_BUILD_FOR_WIN32 |
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#include <sys/timeb.h> // for timeb |
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#endif |
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#include <time.h> |
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#include "hsStream.h" |
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#if HS_BUILD_FOR_WIN32 |
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// |
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// Converts Windows Time to Unified Time |
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// |
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#define MAGICWINDOWSOFFSET ((__int64)11644473600) // magic number, taken from Python Source |
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// |
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bool plUnifiedTime::SetFromWinFileTime(const FILETIME ft) |
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{ |
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// FILETIME resolution seems to be 0.01 sec |
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__int64 ff,ffsecs; |
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ff = *(__int64*)(&ft); |
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ffsecs = ff/(__int64)10000000; |
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if (ffsecs >= MAGICWINDOWSOFFSET) // make sure we won't end up negatice |
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{ |
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fSecs = (time_t)(ffsecs-MAGICWINDOWSOFFSET); |
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fMicros = (uint32_t)(ff % 10000000)/10; |
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return true; |
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} |
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else |
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// before the UNIX Epoch |
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return false; |
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} |
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// |
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// Sets the unified time to the current UTC time |
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// |
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bool plUnifiedTime::SetToUTC() |
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{ |
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FILETIME ft; |
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GetSystemTimeAsFileTime(&ft); /* 100 ns blocks since 01-Jan-1641 */ |
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return SetFromWinFileTime(ft); |
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} |
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#elif HS_BUILD_FOR_UNIX |
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// |
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// Sets the unified time to the current UTC time |
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// |
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bool plUnifiedTime::SetToUTC() |
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{ |
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struct timeval tv; |
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// get the secs and micros from Jan 1, 1970 |
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int ret = gettimeofday(&tv, nil); |
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if (ret == 0) |
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{ |
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fSecs = tv.tv_sec; |
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fMicros = tv.tv_usec; |
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return true; |
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} |
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else |
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{ |
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return false; |
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} |
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} |
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#else |
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#error "Unified Time Not Implemented on this platform!" |
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#endif |
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struct tm * plUnifiedTime::IGetTime(const time_t * timer) const |
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{ |
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struct tm * tm = nil; |
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switch (fMode) |
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{ |
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case kGmt: |
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tm = gmtime(timer); |
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break; |
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default: |
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tm = localtime(timer); |
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} |
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if ( tm ) |
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tm->tm_isdst = -1; |
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return tm; |
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} |
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plUnifiedTime::plUnifiedTime(plUnifiedTime_CtorNow,int mode) |
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{ |
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SetMode((Mode)mode); |
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ToCurrentTime(); |
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} |
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plUnifiedTime::plUnifiedTime(const timeval & tv) |
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: fMode(kGmt) |
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{ |
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*this = tv; |
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} |
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plUnifiedTime::plUnifiedTime(int mode, const struct tm & src) |
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: fMode((Mode)mode) |
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{ |
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*this = src; |
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} |
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plUnifiedTime::plUnifiedTime(time_t t) |
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: fMode(kGmt) |
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{ |
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*this = t; |
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} |
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plUnifiedTime::plUnifiedTime(unsigned long t) |
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: fMode(kGmt) |
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{ |
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*this = t; |
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} |
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plUnifiedTime::plUnifiedTime(int year, int month, int day, int hour, int min, int sec, unsigned long usec, int dst) |
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: fMode(kGmt) |
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{ |
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SetTime(year,month,day,hour,min,sec,usec,dst); |
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} |
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plUnifiedTime::plUnifiedTime(int mode, const char * buf, const char * fmt) |
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: fMode((Mode)mode) |
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{ |
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FromString(buf,fmt); |
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} |
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plUnifiedTime::plUnifiedTime(const plUnifiedTime & src) |
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: fMode(src.fMode) |
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{ |
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*this = src; |
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} |
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plUnifiedTime::plUnifiedTime(const plUnifiedTime * src) |
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: fMode(src->fMode) |
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{ |
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*this = *src; |
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} |
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plUnifiedTime plUnifiedTime::GetCurrentTime(Mode mode) |
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{ |
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plUnifiedTime t; |
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t.SetMode(mode); |
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t.ToCurrentTime(); |
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return t; |
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} |
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const plUnifiedTime & plUnifiedTime::operator=(const plUnifiedTime & src) |
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{ |
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fSecs = src.fSecs; |
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fMicros = src.fMicros; |
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fMode = src.fMode; |
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return *this; |
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} |
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const plUnifiedTime & plUnifiedTime::operator=(const plUnifiedTime * src) |
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{ |
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return operator=(*src); |
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} |
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const plUnifiedTime & plUnifiedTime::operator=(time_t src) |
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{ |
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fSecs = src; |
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fMicros = 0; |
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return *this; |
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} |
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const plUnifiedTime & plUnifiedTime::operator=(unsigned long src) |
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{ |
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fSecs = (time_t)src; |
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fMicros = 0; |
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return *this; |
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} |
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const plUnifiedTime & plUnifiedTime::operator=(const struct timeval & src) |
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{ |
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fSecs = src.tv_sec; |
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fMicros = src.tv_usec; |
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return *this; |
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} |
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const plUnifiedTime & plUnifiedTime::operator=(const struct tm & src) |
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{ |
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struct tm atm = src; |
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fSecs = mktime(&atm); |
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return *this; |
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} |
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void plUnifiedTime::SetSecsDouble(double secs) |
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{ |
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hsAssert(secs>=0, "plUnifiedTime::SetSecsDouble negative time"); |
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double x,y; |
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x = modf(secs,&y); |
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fSecs = (time_t)y; |
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fMicros = (uint32_t)(x*1000000); |
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} |
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void plUnifiedTime::ToCurrentTime() |
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{ |
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SetToUTC(); |
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} |
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bool plUnifiedTime::SetGMTime(short year, short month, short day, short hour, short minute, short second, unsigned long usec) |
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{ |
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if( !SetTime( year, month, day, hour, minute, second, usec, 0 ) ) |
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return false; |
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fSecs -= IGetLocalTimeZoneOffset(); |
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fMode = kGmt; |
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return true; |
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} |
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bool plUnifiedTime::SetTime(short year, short month, short day, short hour, short minute, short second, unsigned long usec, int dst) |
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{ |
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struct tm atm; |
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atm.tm_sec = second; |
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atm.tm_min = minute; |
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atm.tm_hour = hour; |
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atm.tm_mday = day; |
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atm.tm_mon = month - 1; |
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atm.tm_year = year - 1900; |
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atm.tm_isdst = dst; |
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fSecs = mktime(&atm); |
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if (fSecs == -1) |
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return false; |
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if (fMicros >= 1000000) |
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return false; |
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fMicros = usec; |
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fMode = kLocal; |
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return true; |
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} |
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bool plUnifiedTime::GetTime(short &year, short &month, short &day, short &hour, short &minute, short &second) const |
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{ |
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struct tm* time = IGetTime(&fSecs); |
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if (!time) |
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return false; |
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year = time->tm_year+1900; |
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month = time->tm_mon+1; |
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day = time->tm_mday; |
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hour = time->tm_hour; |
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minute = time->tm_min; |
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second = time->tm_sec; |
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return true; |
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} |
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const char* plUnifiedTime::Print() const |
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{ |
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static std::string s; |
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// short year, month, day, hour, minute, second; |
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// GetTime(year, month, day, hour, minute, second); |
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// |
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// xtl::format(s,"yr %d mo %d day %d hour %d min %d sec %d", |
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// year, month, day, hour, minute, second); |
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s = Format("%c"); |
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return s.c_str(); |
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} |
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const char* plUnifiedTime::PrintWMillis() const |
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{ |
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static std::string s; |
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xtl::format(s,"%s,s:%lu,ms:%d", |
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Print(), (unsigned long)GetSecs(), GetMillis() ); |
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return s.c_str(); |
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} |
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struct tm * plUnifiedTime::GetTm(struct tm * ptm) const |
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{ |
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if (ptm != nil) |
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{ |
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*ptm = *IGetTime(&fSecs); |
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return ptm; |
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} |
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else |
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return IGetTime(&fSecs); |
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} |
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int plUnifiedTime::GetYear() const |
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{ |
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return GetTm() ? GetTm()->tm_year + 1900 : 0; |
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} |
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int plUnifiedTime::GetMonth() const |
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{ |
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return GetTm() ? GetTm()->tm_mon + 1 : 0; |
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} |
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int plUnifiedTime::GetDay() const |
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{ |
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return GetTm() ? GetTm()->tm_mday : 0; |
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} |
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int plUnifiedTime::GetHour() const |
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{ |
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return GetTm() ? GetTm()->tm_hour : 0; |
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} |
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int plUnifiedTime::GetMinute() const |
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{ |
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return GetTm() ? GetTm()->tm_min : 0; |
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} |
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int plUnifiedTime::GetSecond() const |
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{ |
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return GetTm() ? GetTm()->tm_sec : 0; |
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} |
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int plUnifiedTime::GetDayOfWeek() const |
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{ |
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return GetTm() ? GetTm()->tm_wday : 0; |
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} |
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int plUnifiedTime::GetMillis() const |
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{ |
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return fMicros/1000; |
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} |
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#pragma optimize( "g", off ) // disable global optimizations |
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double plUnifiedTime::GetSecsDouble() const |
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{ |
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double ret = GetSecs() + GetMicros() / 1000000.0; |
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return ret; |
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} |
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#pragma optimize( "", on ) // restore optimizations to their defaults |
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void plUnifiedTime::Read(hsStream* s) |
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{ |
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s->LogSubStreamStart("UnifiedTime"); |
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uint32_t secs; |
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s->LogReadLE(&secs,"Seconds"); |
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fSecs = (time_t)secs; |
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s->LogReadLE(&fMicros,"MicroSeconds"); |
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s->LogSubStreamEnd(); |
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// preserve fMode |
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} |
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void plUnifiedTime::Write(hsStream* s) const |
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{ |
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s->WriteLE((uint32_t)fSecs); |
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s->WriteLE(fMicros); |
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// preserve fMode |
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} |
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const plUnifiedTime & plUnifiedTime::operator-=(const plUnifiedTime & rhs) |
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{ |
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// carry if needed |
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if ((*this).fMicros < rhs.fMicros) |
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{ |
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(*this).fSecs--; |
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(*this).fMicros += 1000000; |
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} |
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(*this).fMicros -= rhs.fMicros; |
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(*this).fSecs -= rhs.fSecs; |
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return *this; |
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} |
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const plUnifiedTime & plUnifiedTime::operator+=(const plUnifiedTime & rhs) |
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{ |
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(*this).fMicros += rhs.fMicros; |
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// carry if needed |
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if ((*this).fMicros >= 1000000) |
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{ |
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(*this).fSecs++; |
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(*this).fMicros -= 1000000; |
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} |
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(*this).fSecs += rhs.fSecs; |
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return *this; |
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} |
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bool plUnifiedTime::operator==(const plUnifiedTime & rhs) const |
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{ |
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return ((fSecs == rhs.fSecs) && (fMicros == rhs.fMicros)); |
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} |
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bool plUnifiedTime::operator!=(const plUnifiedTime & rhs) const |
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{ |
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return ((fSecs != rhs.fSecs) || (fMicros != rhs.fMicros)); |
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} |
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bool plUnifiedTime::operator <(const plUnifiedTime & rhs) const |
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{ |
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return ((fSecs < rhs.fSecs) || ((fSecs == rhs.fSecs) && (fMicros < rhs.fMicros))); |
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} |
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bool plUnifiedTime::operator >(const plUnifiedTime & rhs) const |
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{ |
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return ((fSecs > rhs.fSecs) || ((fSecs == rhs.fSecs) && (fMicros > rhs.fMicros))); |
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} |
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bool plUnifiedTime::operator<=(const plUnifiedTime & rhs) const |
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{ |
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return (*this<rhs) || (*this==rhs); |
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} |
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bool plUnifiedTime::operator>=(const plUnifiedTime & rhs) const |
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{ |
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return (*this>rhs) || (*this==rhs); |
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} |
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plUnifiedTime::operator timeval() const |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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// tv_secs should be a time_t, but on Windows it is a long |
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struct timeval t = {(long)fSecs, (long)fMicros}; |
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#else |
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struct timeval t = {fSecs, fMicros}; |
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#endif |
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return t; |
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} |
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plUnifiedTime::operator struct tm() const |
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{ |
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return *GetTm(); |
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} |
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std::string plUnifiedTime::Format(const char * fmt) const |
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{ |
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char buf[128]; |
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struct tm * t = IGetTime(&fSecs); |
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if (t == nil || |
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!strftime(buf, sizeof(buf), fmt, t)) |
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buf[0] = '\0'; |
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return std::string(buf); |
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} |
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plUnifiedTime operator -(const plUnifiedTime & left, const plUnifiedTime & right) |
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{ |
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plUnifiedTime ans = left; |
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ans -= right; |
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return ans; |
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} |
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plUnifiedTime operator +(const plUnifiedTime & left, const plUnifiedTime & right) |
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{ |
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plUnifiedTime ans = left; |
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ans += right; |
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return ans; |
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} |
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bool operator <(const plUnifiedTime & time, int secs) |
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{ |
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return (time.GetSecs()<secs); |
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} |
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//////////////////////////////////////////////////////////////////// |
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// FromString |
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#if !defined(HS_BUILD_FOR_UNIX) |
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namespace pvt_strptime |
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{ |
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// |
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// based on glibc's strptime |
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// |
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#define __isleap(year) \ |
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((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) |
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#define match_char(ch1, ch2) if (ch1 != ch2) return NULL |
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#define match_string(cs1, s2) \ |
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(strnicmp((cs1), (s2), strlen (cs1)) ? 0 : ((s2) += strlen (cs1), 1)) |
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#define get_number(from, to, n) \ |
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do { \ |
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int __n = n; \ |
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val = 0; \ |
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while (*rp == ' ') \ |
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++rp; \ |
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if (*rp < '0' || *rp > '9') \ |
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return NULL; \ |
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do { \ |
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val *= 10; \ |
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val += *rp++ - '0'; \ |
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} while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \ |
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if (val < from || val > to) \ |
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return NULL; \ |
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} while (0) |
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#define recursive(new_fmt) \ |
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(*(new_fmt) != '\0' \ |
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&& (rp = strptime_internal (rp, (new_fmt), tm, mode)) != NULL) |
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|
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static char const weekday_name[][10] = |
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{ |
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"Sunday", "Monday", "Tuesday", "Wednesday", |
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"Thursday", "Friday", "Saturday" |
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}; |
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static char const ab_weekday_name[][4] = |
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{ |
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"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" |
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}; |
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static char const month_name[][10] = |
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{ |
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"January", "February", "March", "April", "May", "June", |
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"July", "August", "September", "October", "November", "December" |
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}; |
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static char const ab_month_name[][4] = |
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{ |
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"Jan", "Feb", "Mar", "Apr", "May", "Jun", |
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec" |
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}; |
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#define HERE_D_T_FMT "%m/%d/%y %H:%M:%S" |
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#define HERE_D_FMT "%m/%d/%y" |
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#define HERE_AM_STR "AM" |
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#define HERE_PM_STR "PM" |
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#define HERE_T_FMT_AMPM "%I:%M:%S %p" |
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#define HERE_T_FMT "%H:%M:%S" |
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|
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const unsigned short int __mon_yday[2][13] = |
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{ |
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/* Normal years. */ |
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{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, |
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/* Leap years. */ |
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{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } |
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}; |
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|
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static struct tm * |
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time_r( |
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const time_t *t, |
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struct tm *tp, |
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int mode) |
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{ |
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struct tm *l = 0; |
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switch (mode) |
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{ |
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case plUnifiedTime::kGmt: |
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l = gmtime(t); |
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break; |
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default: |
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l = localtime(t); |
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} |
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if (! l) |
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return 0; |
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*tp = *l; |
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tp->tm_isdst = -1; |
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return tp; |
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} |
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|
|
/* Compute the day of the week. */ |
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static void |
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day_of_the_week (struct tm *tm) |
|
{ |
|
/* We know that January 1st 1970 was a Thursday (= 4). Compute the |
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the difference between this data in the one on TM and so determine |
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the weekday. */ |
|
int corr_year = 1900 + tm->tm_year - (tm->tm_mon < 2); |
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int wday = (-473 |
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+ (365 * (tm->tm_year - 70)) |
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+ (corr_year / 4) |
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- ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0) |
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+ (((corr_year / 4) / 25) / 4) |
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+ __mon_yday[0][tm->tm_mon] |
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+ tm->tm_mday - 1); |
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tm->tm_wday = ((wday % 7) + 7) % 7; |
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} |
|
|
|
/* Compute the day of the year. */ |
|
static void |
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day_of_the_year (struct tm *tm) |
|
{ |
|
tm->tm_yday = (__mon_yday[__isleap (1900 + tm->tm_year)][tm->tm_mon] |
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+ (tm->tm_mday - 1)); |
|
} |
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|
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|
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static char * strptime_internal( |
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const char * rp, |
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const char * fmt, |
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struct tm * tm, |
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int mode) |
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{ |
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const char *rp_backup; |
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int cnt; |
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size_t val; |
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int have_I, is_pm; |
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int century, want_century; |
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int have_wday, want_xday; |
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int have_yday; |
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int have_mon, have_mday; |
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|
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have_I = is_pm = 0; |
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century = -1; |
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want_century = 0; |
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|
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have_wday = want_xday = have_yday = have_mon = have_mday = 0; |
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|
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while (*fmt != '\0') |
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{ |
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/* A white space in the format string matches 0 more or white |
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space in the input string. */ |
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if (isspace (*fmt)) |
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{ |
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while (isspace (*rp)) |
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++rp; |
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++fmt; |
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continue; |
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} |
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|
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/* Any character but `%' must be matched by the same character |
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in the iput string. */ |
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if (*fmt != '%') |
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{ |
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match_char (*fmt++, *rp++); |
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continue; |
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} |
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|
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++fmt; |
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/* We need this for handling the `E' modifier. */ |
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start_over: |
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|
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/* Make back up of current processing pointer. */ |
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rp_backup = rp; |
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|
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switch (*fmt++) |
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{ |
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case '%': |
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/* Match the `%' character itself. */ |
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match_char ('%', *rp++); |
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break; |
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case 'a': |
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case 'A': |
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/* Match day of week. */ |
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for (cnt = 0; cnt < 7; ++cnt) |
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{ |
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if (match_string (weekday_name[cnt], rp) |
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|| match_string (ab_weekday_name[cnt], rp)) |
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{ |
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break; |
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} |
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} |
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if (cnt == 7) |
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/* Does not match a weekday name. */ |
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return NULL; |
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tm->tm_wday = cnt; |
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have_wday = 1; |
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break; |
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case 'b': |
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case 'B': |
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case 'h': |
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/* Match month name. */ |
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for (cnt = 0; cnt < 12; ++cnt) |
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{ |
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if (match_string (month_name[cnt], rp) |
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|| match_string (ab_month_name[cnt], rp)) |
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{ |
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break; |
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} |
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} |
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if (cnt == 12) |
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/* Does not match a month name. */ |
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return NULL; |
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tm->tm_mon = cnt; |
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want_xday = 1; |
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break; |
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case 'c': |
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/* Match locale's date and time format. */ |
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if (!recursive (HERE_D_T_FMT)) |
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return NULL; |
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want_xday = 1; |
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break; |
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case 'C': |
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/* Match century number. */ |
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get_number (0, 99, 2); |
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century = val; |
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want_xday = 1; |
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break; |
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case 'd': |
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case 'e': |
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/* Match day of month. */ |
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get_number (1, 31, 2); |
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tm->tm_mday = val; |
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have_mday = 1; |
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want_xday = 1; |
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break; |
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case 'F': |
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if (!recursive ("%Y-%m-%d")) |
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return NULL; |
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want_xday = 1; |
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break; |
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case 'x': |
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/* Fall through. */ |
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case 'D': |
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/* Match standard day format. */ |
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if (!recursive (HERE_D_FMT)) |
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return NULL; |
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want_xday = 1; |
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break; |
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case 'k': |
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case 'H': |
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/* Match hour in 24-hour clock. */ |
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get_number (0, 23, 2); |
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tm->tm_hour = val; |
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have_I = 0; |
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break; |
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case 'I': |
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/* Match hour in 12-hour clock. */ |
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get_number (1, 12, 2); |
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tm->tm_hour = val % 12; |
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have_I = 1; |
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break; |
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case 'j': |
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/* Match day number of year. */ |
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get_number (1, 366, 3); |
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tm->tm_yday = val - 1; |
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have_yday = 1; |
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break; |
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case 'm': |
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/* Match number of month. */ |
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get_number (1, 12, 2); |
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tm->tm_mon = val - 1; |
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have_mon = 1; |
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want_xday = 1; |
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break; |
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case 'M': |
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/* Match minute. */ |
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get_number (0, 59, 2); |
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tm->tm_min = val; |
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break; |
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case 'n': |
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case 't': |
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/* Match any white space. */ |
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while (isspace (*rp)) |
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++rp; |
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break; |
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case 'p': |
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/* Match locale's equivalent of AM/PM. */ |
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if (!match_string (HERE_AM_STR, rp)) |
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if (match_string (HERE_PM_STR, rp)) |
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is_pm = 1; |
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else |
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return NULL; |
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break; |
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case 'r': |
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if (!recursive (HERE_T_FMT_AMPM)) |
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return NULL; |
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break; |
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case 'R': |
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if (!recursive ("%H:%M")) |
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return NULL; |
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break; |
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case 's': |
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{ |
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/* The number of seconds may be very high so we cannot use |
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the `get_number' macro. Instead read the number |
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character for character and construct the result while |
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doing this. */ |
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time_t secs = 0; |
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if (*rp < '0' || *rp > '9') |
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/* We need at least one digit. */ |
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return NULL; |
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do |
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{ |
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secs *= 10; |
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secs += *rp++ - '0'; |
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} |
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while (*rp >= '0' && *rp <= '9'); |
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|
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if (time_r (&secs, tm, mode) == NULL) |
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/* Error in function. */ |
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return NULL; |
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} |
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break; |
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case 'S': |
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get_number (0, 61, 2); |
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tm->tm_sec = val; |
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break; |
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case 'X': |
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/* Fall through. */ |
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case 'T': |
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if (!recursive (HERE_T_FMT)) |
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return NULL; |
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break; |
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case 'u': |
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get_number (1, 7, 1); |
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tm->tm_wday = val % 7; |
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have_wday = 1; |
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break; |
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case 'g': |
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get_number (0, 99, 2); |
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/* XXX This cannot determine any field in TM. */ |
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break; |
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case 'G': |
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if (*rp < '0' || *rp > '9') |
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return NULL; |
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/* XXX Ignore the number since we would need some more |
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information to compute a real date. */ |
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do |
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++rp; |
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while (*rp >= '0' && *rp <= '9'); |
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break; |
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case 'U': |
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case 'V': |
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case 'W': |
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get_number (0, 53, 2); |
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/* XXX This cannot determine any field in TM without some |
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information. */ |
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break; |
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case 'w': |
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/* Match number of weekday. */ |
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get_number (0, 6, 1); |
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tm->tm_wday = val; |
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have_wday = 1; |
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break; |
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case 'y': |
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/* Match year within century. */ |
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get_number (0, 99, 2); |
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/* The "Year 2000: The Millennium Rollover" paper suggests that |
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values in the range 69-99 refer to the twentieth century. */ |
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tm->tm_year = val >= 69 ? val : val + 100; |
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/* Indicate that we want to use the century, if specified. */ |
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want_century = 1; |
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want_xday = 1; |
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break; |
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case 'Y': |
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/* Match year including century number. */ |
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get_number (0, 9999, 4); |
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tm->tm_year = val - 1900; |
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want_century = 0; |
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want_xday = 1; |
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break; |
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goto start_over; |
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|
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case 'O': |
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switch (*fmt++) |
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{ |
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case 'd': |
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case 'e': |
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/* Match day of month using alternate numeric symbols. */ |
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get_number (1, 31, 2); |
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tm->tm_mday = val; |
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have_mday = 1; |
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want_xday = 1; |
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break; |
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case 'H': |
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/* Match hour in 24-hour clock using alternate numeric |
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symbols. */ |
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get_number (0, 23, 2); |
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tm->tm_hour = val; |
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have_I = 0; |
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break; |
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case 'I': |
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/* Match hour in 12-hour clock using alternate numeric |
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symbols. */ |
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get_number (1, 12, 2); |
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tm->tm_hour = val - 1; |
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have_I = 1; |
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break; |
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case 'm': |
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/* Match month using alternate numeric symbols. */ |
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get_number (1, 12, 2); |
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tm->tm_mon = val - 1; |
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have_mon = 1; |
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want_xday = 1; |
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break; |
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case 'M': |
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/* Match minutes using alternate numeric symbols. */ |
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get_number (0, 59, 2); |
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tm->tm_min = val; |
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break; |
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case 'S': |
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/* Match seconds using alternate numeric symbols. */ |
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get_number (0, 61, 2); |
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tm->tm_sec = val; |
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break; |
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case 'U': |
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case 'V': |
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case 'W': |
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get_number (0, 53, 2); |
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/* XXX This cannot determine any field in TM without |
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further information. */ |
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break; |
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case 'w': |
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/* Match number of weekday using alternate numeric symbols. */ |
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get_number (0, 6, 1); |
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tm->tm_wday = val; |
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have_wday = 1; |
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break; |
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case 'y': |
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/* Match year within century using alternate numeric symbols. */ |
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get_number (0, 99, 2); |
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tm->tm_year = val >= 69 ? val : val + 100; |
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want_xday = 1; |
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break; |
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default: |
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return NULL; |
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} |
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break; |
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default: |
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return NULL; |
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} |
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} |
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if (have_I && is_pm) |
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tm->tm_hour += 12; |
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|
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if (century != -1) |
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{ |
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if (want_century) |
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tm->tm_year = tm->tm_year % 100 + (century - 19) * 100; |
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else |
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/* Only the century, but not the year. Strange, but so be it. */ |
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tm->tm_year = (century - 19) * 100; |
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} |
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if (want_xday && !have_wday) |
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{ |
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if ( !(have_mon && have_mday) && have_yday) |
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{ |
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/* We don't have tm_mon and/or tm_mday, compute them. */ |
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int t_mon = 0; |
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while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday) |
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t_mon++; |
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if (!have_mon) |
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tm->tm_mon = t_mon - 1; |
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if (!have_mday) |
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tm->tm_mday = |
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(tm->tm_yday |
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- __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1); |
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} |
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day_of_the_week (tm); |
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} |
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if (want_xday && !have_yday) |
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day_of_the_year (tm); |
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return (char *) rp; |
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} |
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} // namespace pvt_strptime |
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#endif |
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|
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bool plUnifiedTime::FromString(const char * buf, const char * fmt) |
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{ |
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struct tm tm; |
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tm.tm_isdst = -1; |
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#if !defined(HS_BUILD_FOR_UNIX) |
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bool result = (pvt_strptime::strptime_internal(buf, fmt, &tm, fMode)!=nil); |
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#else |
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bool result = (strptime(buf, fmt, &tm)!=nil); |
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#endif |
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if (result) |
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*this = tm; |
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return result; |
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} |
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|
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/// Local time zone offset stuff |
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|
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int32_t plUnifiedTime::fLocalTimeZoneOffset = -1; |
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|
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int32_t plUnifiedTime::IGetLocalTimeZoneOffset( void ) |
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{ |
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static bool inited = false; |
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|
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if( !inited ) |
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{ |
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inited = true; |
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|
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// Calculate the difference between local time and GMT for this system currently |
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// Taken from devx.com from an article written by Danny Kalev |
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// http://gethelp.devx.com/techtips/cpp_pro/10min/2001/10min1200-3.asp |
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|
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time_t currLocalTime = time( 0 ); // current local time |
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|
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struct tm local = *gmtime( &currLocalTime ); // convert curr to GMT, store as tm |
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|
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time_t utc = mktime( &local ); // convert GMT tm to GMT time_t |
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|
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double diffInSecs = difftime( utc, currLocalTime ); |
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|
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fLocalTimeZoneOffset = (int32_t)diffInSecs; |
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} |
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|
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return fLocalTimeZoneOffset; |
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} |
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|
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// |
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// static helper, return difference timeA-timeB, may be negative |
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// |
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double plUnifiedTime::GetTimeDifference(const plUnifiedTime& timeA, const plUnifiedTime& timeB) |
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{ |
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bool neg = (timeB > timeA); |
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plUnifiedTime timeDiff = neg ? (timeB - timeA) : (timeA - timeB); // always positive |
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double t = (float)(neg ? timeDiff.GetSecsDouble() * -1. : timeDiff.GetSecsDouble()); |
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return t; |
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}
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