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/* -*- 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 <sal/config.h>
#include "saltime.h"
#include "system.h"
#include <osl/diagnose.h>
#include <osl/time.h>
#include <time.h>
#include <assert.h>
#include <unistd.h>
#ifdef __MACH__
#include <mach/clock.h>
#include <mach/mach.h>
#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
#ifdef __MACH__
typedef mach_timespec_t osl_time_t;
#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;
sal_Bool SAL_CALL osl_getSystemTime(TimeValue* tv)
{
#ifdef __MACH__
clock_serv_t cclock;
mach_timespec_t mts;
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, &mts);
mach_port_deallocate(mach_task_self(), cclock);
tv->Seconds = mts.tv_sec;
tv->Nanosec = mts.tv_nsec;
#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;
}
sal_Bool SAL_CALL osl_getDateTimeFromTimeValue( const 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;
}
sal_Bool SAL_CALL osl_getTimeValueFromDateTime( const 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;
aTime.tm_year = pDateTime->Year - 1900;
aTime.tm_isdst = -1;
aTime.tm_wday = 0;
aTime.tm_yday = 0;
#if defined(STRUCT_TM_HAS_GMTOFF)
aTime.tm_gmtoff = 0;
#endif
/* 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;
}
sal_Bool SAL_CALL osl_getLocalTimeFromSystemTime( const 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 = -pLocalTime->tm_gmtoff;
#elif defined(HAS_ALTZONE)
/* check if daylight saving time is in effect */
bias = pLocalTime->tm_isdst > 0 ? altzone : timezone;
#else
/* expect 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;
}
sal_Bool SAL_CALL osl_getSystemTimeFromLocalTime( const 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()
{
#ifdef __MACH__
clock_serv_t cclock;
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, &startTime);
mach_port_deallocate(mach_task_self(), cclock);
#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;
#ifdef __MACH__
clock_serv_t cclock;
mach_timespec_t currentTime;
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, ¤tTime);
mach_port_deallocate(mach_task_self(), cclock);
nSeconds = ( currentTime.tv_sec - startTime.tv_sec );
nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 );
#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: */
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