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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <sal/config.h>
21 :
22 : #include <cerrno>
23 :
24 : #if defined( WNT )
25 : #include <windows.h>
26 : #elif defined UNX
27 : #include <unistd.h>
28 : #include <limits.h>
29 : #include <math.h>
30 : #include <sys/time.h>
31 : #endif
32 :
33 : #include <time.h>
34 : #ifdef __MACH__
35 : #include <mach/clock.h>
36 : #include <mach/mach.h>
37 : #endif
38 :
39 : #include <sal/log.hxx>
40 : #include <tools/time.hxx>
41 : #include <osl/diagnose.h>
42 :
43 : #if defined(SOLARIS) && defined(__GNUC__)
44 : extern long altzone;
45 : #endif
46 :
47 : namespace {
48 :
49 : const sal_Int64 secMask = SAL_CONST_INT64(1000000000);
50 : const sal_Int64 minMask = SAL_CONST_INT64(100000000000);
51 : const sal_Int64 hourMask = SAL_CONST_INT64(10000000000000);
52 :
53 : const sal_Int64 nanoSecInSec = 1000000000;
54 : const sal_Int16 secInMin = 60;
55 : const sal_Int16 minInHour = 60;
56 :
57 1392 : sal_Int64 TimeToNanoSec( const tools::Time& rTime )
58 : {
59 1392 : short nSign = (rTime.GetTime() >= 0) ? +1 : -1;
60 1392 : sal_Int32 nHour = rTime.GetHour();
61 1392 : sal_Int32 nMin = rTime.GetMin();
62 1392 : sal_Int32 nSec = rTime.GetSec();
63 1392 : sal_Int32 nNanoSec = rTime.GetNanoSec();
64 :
65 1392 : sal_Int64 nRet = nNanoSec;
66 1392 : nRet += nSec * nanoSecInSec;
67 1392 : nRet += nMin * secInMin * nanoSecInSec;
68 1392 : nRet += nHour * minInHour * secInMin * nanoSecInSec;
69 :
70 1392 : return (nRet * nSign);
71 : }
72 :
73 696 : tools::Time NanoSecToTime( sal_Int64 nNanoSec )
74 : {
75 : short nSign;
76 696 : if ( nNanoSec < 0 )
77 : {
78 12 : nNanoSec *= -1;
79 12 : nSign = -1;
80 : }
81 : else
82 684 : nSign = 1;
83 :
84 696 : tools::Time aTime( 0, 0, 0, nNanoSec );
85 696 : aTime.SetTime( aTime.GetTime() * nSign );
86 696 : return aTime;
87 : }
88 :
89 : } // anonymous namespace
90 :
91 : namespace tools {
92 :
93 21546 : Time::Time( TimeInitSystem )
94 : {
95 : #if defined( WNT )
96 : SYSTEMTIME aDateTime;
97 : GetLocalTime( &aDateTime );
98 :
99 : // construct time
100 : nTime = aDateTime.wHour * hourMask +
101 : aDateTime.wMinute * minMask +
102 : aDateTime.wSecond * secMask +
103 : aDateTime.wMilliseconds * 1000000;
104 : #else
105 : // determine time
106 : struct timespec tsTime;
107 : #if defined( __MACH__ )
108 : // OS X does not have clock_gettime, use clock_get_time
109 : clock_serv_t cclock;
110 : mach_timespec_t mts;
111 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
112 : clock_get_time(cclock, &mts);
113 : mach_port_deallocate(mach_task_self(), cclock);
114 : tsTime.tv_sec = mts.tv_sec;
115 : tsTime.tv_nsec = mts.tv_nsec;
116 : #else
117 : // CLOCK_REALTIME should be supported
118 : // on any modern Unix, but be extra cautious
119 21546 : if (clock_gettime(CLOCK_REALTIME, &tsTime) != 0)
120 : {
121 : struct timeval tvTime;
122 0 : OSL_VERIFY( gettimeofday(&tvTime, NULL) != 0 );
123 0 : tsTime.tv_sec = tvTime.tv_sec;
124 0 : tsTime.tv_nsec = tvTime.tv_usec * 1000;
125 : }
126 : #endif // __MACH__
127 :
128 : // construct time
129 : struct tm aTime;
130 21546 : time_t nTmpTime = tsTime.tv_sec;
131 21546 : if ( localtime_r( &nTmpTime, &aTime ) )
132 : {
133 43092 : nTime = aTime.tm_hour * hourMask +
134 43092 : aTime.tm_min * minMask +
135 43092 : aTime.tm_sec * secMask +
136 21546 : tsTime.tv_nsec;
137 : }
138 : else
139 0 : nTime = 0;
140 : #endif // WNT
141 21546 : }
142 :
143 19228 : Time::Time( const tools::Time& rTime )
144 : {
145 19228 : nTime = rTime.nTime;
146 19228 : }
147 :
148 6088 : Time::Time( sal_uInt32 nHour, sal_uInt32 nMin, sal_uInt32 nSec, sal_uInt64 nNanoSec )
149 : {
150 6088 : init(nHour, nMin, nSec, nNanoSec);
151 6088 : }
152 110 : Time::Time( const ::com::sun::star::util::Time &_rTime )
153 : {
154 110 : init(_rTime.Hours, _rTime.Minutes, _rTime.Seconds, _rTime.NanoSeconds);
155 110 : }
156 8 : Time::Time( const ::com::sun::star::util::DateTime &_rDateTime )
157 : {
158 8 : init(_rDateTime.Hours, _rDateTime.Minutes, _rDateTime.Seconds, _rDateTime.NanoSeconds);
159 8 : }
160 :
161 6206 : void tools::Time::init( sal_uInt32 nHour, sal_uInt32 nMin, sal_uInt32 nSec, sal_uInt64 nNanoSec )
162 : {
163 : // normalize time
164 6206 : nSec += nNanoSec / nanoSecInSec;
165 6206 : nNanoSec %= nanoSecInSec;
166 6206 : nMin += nSec / secInMin;
167 6206 : nSec %= secInMin;
168 6206 : nHour += nMin / minInHour;
169 6206 : nMin %= minInHour;
170 :
171 : // construct time
172 : nTime = nNanoSec +
173 12412 : nSec * secMask +
174 12412 : nMin * minMask +
175 12412 : nHour * hourMask;
176 6206 : }
177 :
178 732 : void tools::Time::SetHour( sal_uInt16 nNewHour )
179 : {
180 732 : short nSign = (nTime >= 0) ? +1 : -1;
181 732 : sal_Int32 nMin = GetMin();
182 732 : sal_Int32 nSec = GetSec();
183 732 : sal_Int32 nNanoSec = GetNanoSec();
184 :
185 1464 : nTime = nSign *
186 1464 : ( nNanoSec +
187 1464 : nSec * secMask +
188 1464 : nMin * minMask +
189 1464 : nNewHour * hourMask );
190 732 : }
191 :
192 127 : void tools::Time::SetMin( sal_uInt16 nNewMin )
193 : {
194 127 : short nSign = (nTime >= 0) ? +1 : -1;
195 127 : sal_Int32 nHour = GetHour();
196 127 : sal_Int32 nSec = GetSec();
197 127 : sal_Int32 nNanoSec = GetNanoSec();
198 :
199 : // no overflow
200 127 : nNewMin = nNewMin % minInHour;
201 :
202 254 : nTime = nSign *
203 254 : ( nNanoSec +
204 254 : nSec * secMask +
205 254 : nNewMin * minMask +
206 254 : nHour * hourMask );
207 127 : }
208 :
209 2718 : void tools::Time::SetSec( sal_uInt16 nNewSec )
210 : {
211 2718 : short nSign = (nTime >= 0) ? +1 : -1;
212 2718 : sal_Int32 nHour = GetHour();
213 2718 : sal_Int32 nMin = GetMin();
214 2718 : sal_Int32 nNanoSec = GetNanoSec();
215 :
216 : // no overflow
217 2718 : nNewSec = nNewSec % secInMin;
218 :
219 5436 : nTime = nSign *
220 5436 : ( nNanoSec +
221 5436 : nNewSec * secMask +
222 5436 : nMin * minMask +
223 5436 : nHour * hourMask );
224 2718 : }
225 :
226 2645 : void tools::Time::SetNanoSec( sal_uInt32 nNewNanoSec )
227 : {
228 2645 : short nSign = (nTime >= 0) ? +1 : -1;
229 2645 : sal_Int32 nHour = GetHour();
230 2645 : sal_Int32 nMin = GetMin();
231 2645 : sal_Int32 nSec = GetSec();
232 :
233 : // no overflow
234 2645 : nNewNanoSec = nNewNanoSec % nanoSecInSec;
235 :
236 5290 : nTime = nSign *
237 5290 : ( nNewNanoSec +
238 5290 : nSec * secMask +
239 5290 : nMin * minMask +
240 5290 : nHour * hourMask );
241 2645 : }
242 :
243 7040 : sal_Int64 tools::Time::GetNSFromTime() const
244 : {
245 7040 : short nSign = (nTime >= 0) ? +1 : -1;
246 7040 : sal_Int32 nHour = GetHour();
247 7040 : sal_Int32 nMin = GetMin();
248 7040 : sal_Int32 nSec = GetSec();
249 7040 : sal_Int32 nNanoSec = GetNanoSec();
250 :
251 7040 : return nSign *
252 14080 : ( nNanoSec +
253 14080 : nSec * nanoSecInSec +
254 14080 : nMin * (secInMin * nanoSecInSec) +
255 14080 : nHour * (minInHour * secInMin * nanoSecInSec) );
256 : }
257 :
258 3 : void tools::Time::MakeTimeFromNS( sal_Int64 nNS )
259 : {
260 : short nSign;
261 3 : if ( nNS < 0 )
262 : {
263 0 : nNS *= -1;
264 0 : nSign = -1;
265 : }
266 : else
267 3 : nSign = 1;
268 :
269 : // avoid overflow when sal_uIntPtr is 32 bits
270 3 : tools::Time aTime( 0, 0, nNS/nanoSecInSec, nNS % nanoSecInSec );
271 3 : SetTime( aTime.GetTime() * nSign );
272 3 : }
273 :
274 0 : sal_Int32 tools::Time::GetMSFromTime() const
275 : {
276 0 : short nSign = (nTime >= 0) ? +1 : -1;
277 0 : sal_Int32 nHour = GetHour();
278 0 : sal_Int32 nMin = GetMin();
279 0 : sal_Int32 nSec = GetSec();
280 0 : sal_Int32 nNanoSec = GetNanoSec();
281 :
282 0 : return nSign *
283 0 : ( nNanoSec/1000000 +
284 0 : nSec * 1000 +
285 0 : nMin * 60000 +
286 0 : nHour * 360000 );
287 : }
288 :
289 2 : void tools::Time::MakeTimeFromMS( sal_Int32 nMS )
290 : {
291 : short nSign;
292 2 : if ( nMS < 0 )
293 : {
294 0 : nMS *= -1;
295 0 : nSign = -1;
296 : }
297 : else
298 2 : nSign = 1;
299 :
300 : // avoid overflow when sal_uIntPtr is 32 bits
301 2 : tools::Time aTime( 0, 0, nMS/1000, (nMS % 1000) * 1000000 );
302 2 : SetTime( aTime.GetTime() * nSign );
303 2 : }
304 :
305 0 : double tools::Time::GetTimeInDays() const
306 : {
307 0 : short nSign = (nTime >= 0) ? +1 : -1;
308 0 : double nHour = GetHour();
309 0 : double nMin = GetMin();
310 0 : double nSec = GetSec();
311 0 : double nNanoSec = GetNanoSec();
312 :
313 0 : return (nHour + (nMin / 60) + (nSec / (minInHour * secInMin)) + (nNanoSec / (minInHour * secInMin * nanoSecInSec))) / 24 * nSign;
314 : }
315 :
316 7543 : Time& tools::Time::operator =( const tools::Time& rTime )
317 : {
318 7543 : nTime = rTime.nTime;
319 7543 : return *this;
320 : }
321 :
322 457 : Time& tools::Time::operator +=( const tools::Time& rTime )
323 : {
324 457 : nTime = NanoSecToTime( TimeToNanoSec( *this ) +
325 457 : TimeToNanoSec( rTime ) ).GetTime();
326 457 : return *this;
327 : }
328 :
329 170 : Time& tools::Time::operator -=( const tools::Time& rTime )
330 : {
331 170 : nTime = NanoSecToTime( TimeToNanoSec( *this ) -
332 170 : TimeToNanoSec( rTime ) ).GetTime();
333 170 : return *this;
334 : }
335 :
336 12 : Time operator +( const tools::Time& rTime1, const tools::Time& rTime2 )
337 : {
338 12 : return NanoSecToTime( TimeToNanoSec( rTime1 ) +
339 12 : TimeToNanoSec( rTime2 ) );
340 : }
341 :
342 57 : Time operator -( const tools::Time& rTime1, const tools::Time& rTime2 )
343 : {
344 57 : return NanoSecToTime( TimeToNanoSec( rTime1 ) -
345 57 : TimeToNanoSec( rTime2 ) );
346 : }
347 :
348 0 : bool tools::Time::IsEqualIgnoreNanoSec( const tools::Time& rTime ) const
349 : {
350 0 : sal_Int32 n1 = (nTime < 0 ? -static_cast<sal_Int32>(GetNanoSec()) : GetNanoSec() );
351 0 : sal_Int32 n2 = (rTime.nTime < 0 ? -static_cast<sal_Int32>(rTime.GetNanoSec()) : rTime.GetNanoSec() );
352 0 : return (nTime - n1) == (rTime.nTime - n2);
353 : }
354 :
355 610 : Time tools::Time::GetUTCOffset()
356 : {
357 : #if defined( WNT )
358 : TIME_ZONE_INFORMATION aTimeZone;
359 : aTimeZone.Bias = 0;
360 : DWORD nTimeZoneRet = GetTimeZoneInformation( &aTimeZone );
361 : sal_Int32 nTempTime = aTimeZone.Bias;
362 : if ( nTimeZoneRet == TIME_ZONE_ID_STANDARD )
363 : nTempTime += aTimeZone.StandardBias;
364 : else if ( nTimeZoneRet == TIME_ZONE_ID_DAYLIGHT )
365 : nTempTime += aTimeZone.DaylightBias;
366 : tools::Time aTime( 0, (sal_uInt16)abs( nTempTime ) );
367 : if ( nTempTime > 0 )
368 : aTime = -aTime;
369 : return aTime;
370 : #else
371 : static sal_uInt64 nCacheTicks = 0;
372 : static sal_Int32 nCacheSecOffset = -1;
373 610 : sal_uInt64 nTicks = tools::Time::GetSystemTicks();
374 : time_t nTime;
375 : tm aTM;
376 : sal_Int32 nLocalTime;
377 : sal_Int32 nUTC;
378 : short nTempTime;
379 :
380 : // determine value again if needed
381 1204 : if ( (nCacheSecOffset == -1) ||
382 1188 : ((nTicks - nCacheTicks) > 360000) ||
383 594 : ( nTicks < nCacheTicks ) // handle overflow
384 : )
385 : {
386 16 : nTime = time( 0 );
387 16 : localtime_r( &nTime, &aTM );
388 16 : nLocalTime = mktime( &aTM );
389 : #if defined( SOLARIS )
390 : // Solaris gmtime_r() seems not to handle daylight saving time
391 : // flags correctly
392 : nUTC = nLocalTime + ( aTM.tm_isdst == 0 ? timezone : altzone );
393 : #elif defined( LINUX )
394 : // Linux mktime() seems not to handle tm_isdst correctly
395 16 : nUTC = nLocalTime - aTM.tm_gmtoff;
396 : #else
397 : gmtime_r( &nTime, &aTM );
398 : nUTC = mktime( &aTM );
399 : #endif
400 16 : nCacheTicks = nTicks;
401 16 : nCacheSecOffset = (nLocalTime-nUTC) / 60;
402 : }
403 :
404 610 : nTempTime = abs( nCacheSecOffset );
405 610 : tools::Time aTime( 0, (sal_uInt16)nTempTime );
406 610 : if ( nCacheSecOffset < 0 )
407 0 : aTime = -aTime;
408 610 : return aTime;
409 : #endif
410 : }
411 :
412 162810122 : sal_uInt64 tools::Time::GetSystemTicks()
413 : {
414 : #if defined WNT
415 : static LARGE_INTEGER nTicksPerSecond;
416 : static bool bTicksPerSecondInitialized = false;
417 : if (!bTicksPerSecondInitialized)
418 : {
419 : QueryPerformanceFrequency(&nTicksPerSecond);
420 : bTicksPerSecondInitialized = true;
421 : }
422 :
423 : LARGE_INTEGER nPerformanceCount;
424 : QueryPerformanceCounter(&nPerformanceCount);
425 :
426 : return static_cast<sal_uInt64>(
427 : (nPerformanceCount.QuadPart*1000)/nTicksPerSecond.QuadPart);
428 : #else
429 : timeval tv;
430 162810122 : int n = gettimeofday (&tv, 0);
431 162810122 : if (n == -1) {
432 0 : int e = errno;
433 : SAL_WARN("tools.datetime", "gettimeofday failed: " << e);
434 : }
435 162810122 : return static_cast<sal_uInt64>(tv.tv_sec) * 1000
436 162810122 : + (static_cast<sal_uInt64>(tv.tv_usec) + 500) / 1000;
437 : #endif
438 : }
439 :
440 : } /* namespace tools */
441 :
442 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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