/************************************************************** * * 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 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ #include "system.h" #include #include /* FIXME: detection should be done in configure script */ #if defined(MACOSX) || defined(FREEBSD) || defined(NETBSD) || defined(LINUX) #define STRUCT_TM_HAS_GMTOFF 1 #elif defined(SOLARIS) #define HAS_ALTZONE 1 #endif /*-------------------------------------------------- * osl_getSystemTime *-------------------------------------------------*/ sal_Bool SAL_CALL osl_getSystemTime(TimeValue* TimeValue) { struct timeval tp; /* FIXME: use higher resolution */ gettimeofday(&tp, NULL); TimeValue->Seconds = tp.tv_sec; TimeValue->Nanosec = tp.tv_usec * 1000; 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; } static struct timeval startTime; static sal_Bool bGlobalTimer = sal_False; sal_uInt32 SAL_CALL osl_getGlobalTimer() { struct timeval currentTime; sal_uInt32 nSeconds; // FIXME: not thread safe !! if ( bGlobalTimer == sal_False ) { gettimeofday( &startTime, NULL ); bGlobalTimer=sal_True; } gettimeofday( ¤tTime, NULL ); nSeconds = (sal_uInt32)( currentTime.tv_sec - startTime.tv_sec ); return ( nSeconds * 1000 ) + (long) (( currentTime.tv_usec - startTime.tv_usec) / 1000 ); }