/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #include "system.h" #include #include #include #include #include #if defined(MACOSX) || defined(IOS) #include #endif /* FIXME: detection should be done in configure script */ #if defined(MACOSX) || defined(IOS) || defined(FREEBSD) || defined(NETBSD) || \ defined(LINUX) || defined(OPENBSD) || defined(DRAGONFLY) #define STRUCT_TM_HAS_GMTOFF 1 #elif defined(SOLARIS) #define HAS_ALTZONE 1 #endif #if defined(MACOSX) || defined(IOS) typedef sal_uInt64 osl_time_t; static double adjust_time_factor; #else #if defined(_POSIX_TIMERS) #define USE_CLOCK_GETTIME typedef struct timespec osl_time_t; #else typedef struct timeval osl_time_t; #endif #endif static osl_time_t startTime; /*-------------------------------------------------- * osl_getSystemTime *-------------------------------------------------*/ sal_Bool SAL_CALL osl_getSystemTime(TimeValue* tv) { #if defined(MACOSX) || defined(IOS) double diff = (double)(mach_absolute_time() - startTime) * adjust_time_factor; tv->Seconds = (sal_uInt32)diff; tv->Nanosec = (sal_uInt32)((diff - tv->Seconds) * 1e9); #else int res; osl_time_t tp; #if defined(USE_CLOCK_GETTIME) res = clock_gettime(CLOCK_REALTIME, &tp); #else res = gettimeofday(&tp, NULL); #endif if (res != 0) { return sal_False; } tv->Seconds = tp.tv_sec; #if defined(USE_CLOCK_GETTIME) tv->Nanosec = tp.tv_nsec; #else tv->Nanosec = tp.tv_usec * 1000; #endif #endif return sal_True; } /*-------------------------------------------------- * osl_getDateTimeFromTimeValue *-------------------------------------------------*/ sal_Bool SAL_CALL osl_getDateTimeFromTimeValue( TimeValue* pTimeVal, oslDateTime* pDateTime ) { struct tm *pSystemTime; struct tm tmBuf; time_t atime; atime = (time_t)pTimeVal->Seconds; /* Convert time from type time_t to struct tm */ pSystemTime = gmtime_r( &atime, &tmBuf ); /* Convert struct tm to struct oslDateTime */ if ( pSystemTime != NULL ) { pDateTime->NanoSeconds = pTimeVal->Nanosec; pDateTime->Seconds = pSystemTime->tm_sec; pDateTime->Minutes = pSystemTime->tm_min; pDateTime->Hours = pSystemTime->tm_hour; pDateTime->Day = pSystemTime->tm_mday; pDateTime->DayOfWeek = pSystemTime->tm_wday; pDateTime->Month = pSystemTime->tm_mon + 1; pDateTime->Year = pSystemTime->tm_year + 1900; return sal_True; } return sal_False; } /*-------------------------------------------------- * osl_getTimeValueFromDateTime *--------------------------------------------------*/ sal_Bool SAL_CALL osl_getTimeValueFromDateTime( oslDateTime* pDateTime, TimeValue* pTimeVal ) { struct tm aTime; time_t nSeconds; /* Convert struct oslDateTime to struct tm */ aTime.tm_sec = pDateTime->Seconds; aTime.tm_min = pDateTime->Minutes; aTime.tm_hour = pDateTime->Hours; aTime.tm_mday = pDateTime->Day; aTime.tm_wday = pDateTime->DayOfWeek; if ( pDateTime->Month > 0 ) aTime.tm_mon = pDateTime->Month - 1; else return sal_False; if ( pDateTime->Year >= 1900 ) aTime.tm_year = pDateTime->Year - 1900; else return sal_False; aTime.tm_isdst = -1; aTime.tm_wday = 0; aTime.tm_yday = 0; /* Convert time to calendar value */ nSeconds = mktime( &aTime ); /* * mktime expects the struct tm to be in local timezone, so we have to adjust * the returned value to be timezone neutral. */ if ( nSeconds != (time_t) -1 ) { time_t bias; /* timezone corrections */ tzset(); #if defined(STRUCT_TM_HAS_GMTOFF) /* members of struct tm are corrected by mktime */ bias = 0 - aTime.tm_gmtoff; #elif defined(HAS_ALTZONE) /* check if daylight saving time is in effect */ bias = aTime.tm_isdst > 0 ? altzone : timezone; #else /* exspect daylight saving time to be one hour */ bias = aTime.tm_isdst > 0 ? timezone - 3600 : timezone; #endif pTimeVal->Seconds = nSeconds; pTimeVal->Nanosec = pDateTime->NanoSeconds; if ( nSeconds > bias ) pTimeVal->Seconds -= bias; return sal_True; } return sal_False; } /*-------------------------------------------------- * osl_getLocalTimeFromSystemTime *--------------------------------------------------*/ sal_Bool SAL_CALL osl_getLocalTimeFromSystemTime( TimeValue* pSystemTimeVal, TimeValue* pLocalTimeVal ) { struct tm *pLocalTime; struct tm tmBuf; time_t bias; time_t atime; atime = (time_t) pSystemTimeVal->Seconds; pLocalTime = localtime_r( &atime, &tmBuf ); #if defined(STRUCT_TM_HAS_GMTOFF) /* members of struct tm are corrected by mktime */ bias = 0 - pLocalTime->tm_gmtoff; #elif defined(HAS_ALTZONE) /* check if daylight saving time is in effect */ bias = pLocalTime->tm_isdst > 0 ? altzone : timezone; #else /* exspect daylight saving time to be one hour */ bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone; #endif if ( (sal_Int64) pSystemTimeVal->Seconds > bias ) { pLocalTimeVal->Seconds = pSystemTimeVal->Seconds - bias; pLocalTimeVal->Nanosec = pSystemTimeVal->Nanosec; return sal_True; } return sal_False; } /*-------------------------------------------------- * osl_getSystemTimeFromLocalTime *--------------------------------------------------*/ sal_Bool SAL_CALL osl_getSystemTimeFromLocalTime( TimeValue* pLocalTimeVal, TimeValue* pSystemTimeVal ) { struct tm *pLocalTime; struct tm tmBuf; time_t bias; time_t atime; atime = (time_t) pLocalTimeVal->Seconds; /* Convert atime, which is a local time, to it's GMT equivalent. Then, get * the timezone offset for the local time for the GMT equivalent time. Note * that we cannot directly use local time to determine the timezone offset * because GMT is the only reliable time that we can determine timezone * offset from. */ atime = mktime( gmtime_r( &atime, &tmBuf ) ); pLocalTime = localtime_r( &atime, &tmBuf ); #if defined(STRUCT_TM_HAS_GMTOFF) /* members of struct tm are corrected by mktime */ bias = 0 - pLocalTime->tm_gmtoff; #elif defined(HAS_ALTZONE) /* check if daylight saving time is in effect */ bias = pLocalTime->tm_isdst > 0 ? altzone : timezone; #else /* exspect daylight saving time to be one hour */ bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone; #endif if ( (sal_Int64) pLocalTimeVal->Seconds + bias > 0 ) { pSystemTimeVal->Seconds = pLocalTimeVal->Seconds + bias; pSystemTimeVal->Nanosec = pLocalTimeVal->Nanosec; return sal_True; } return sal_False; } void sal_initGlobalTimer() { #if defined(MACOSX) || defined(IOS) mach_timebase_info_data_t timebase; mach_timebase_info(&timebase); adjust_time_factor = 1e-9 * (double)timebase.numer / (double)(timebase.denom); startTime = mach_absolute_time(); #else /* ! (MACOSX || IOS) */ int res; #if defined(USE_CLOCK_GETTIME) res = clock_gettime(CLOCK_REALTIME, &startTime); #else /* Ndef USE_CLOCK_GETTIME */ res = gettimeofday( &startTime, NULL ); #endif /* NDef USE_CLOCK_GETTIME */ assert(res == 0); (void) res; #endif /* ! (MACOSX || IOS) */ } sal_uInt32 SAL_CALL osl_getGlobalTimer() { sal_uInt32 nSeconds; #if defined(MACOSX) || defined(IOS) double diff = (double)(mach_absolute_time() - startTime) * adjust_time_factor * 1000; nSeconds = (sal_uInt32)diff; #else osl_time_t currentTime; int res; #if defined(USE_CLOCK_GETTIME) res = clock_gettime(CLOCK_REALTIME, ¤tTime); #else res = gettimeofday( ¤tTime, NULL ); #endif assert(res == 0); if (res != 0) return 0; nSeconds = (sal_uInt32)( currentTime.tv_sec - startTime.tv_sec ); #if defined(USE_CLOCK_GETTIME) nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 ); #else nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_usec - startTime.tv_usec) / 1000 ); #endif #endif return nSeconds; } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */