Line data Source code
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 :
21 : #include "system.h"
22 :
23 : #include <osl/diagnose.h>
24 : #include <osl/time.h>
25 : #include <time.h>
26 : #include <assert.h>
27 : #include <unistd.h>
28 :
29 : #ifdef __MACH__
30 : #include <mach/clock.h>
31 : #include <mach/mach.h>
32 : #endif
33 :
34 : /* FIXME: detection should be done in configure script */
35 : #if defined(MACOSX) || defined(IOS) || defined(FREEBSD) || defined(NETBSD) || \
36 : defined(LINUX) || defined(OPENBSD) || defined(DRAGONFLY)
37 : #define STRUCT_TM_HAS_GMTOFF 1
38 :
39 : #elif defined(SOLARIS)
40 : #define HAS_ALTZONE 1
41 : #endif
42 :
43 : #ifdef __MACH__
44 : typedef mach_timespec_t osl_time_t;
45 : #else
46 : #if defined(_POSIX_TIMERS)
47 : #define USE_CLOCK_GETTIME
48 : typedef struct timespec osl_time_t;
49 : #else
50 : typedef struct timeval osl_time_t;
51 : #endif
52 : #endif
53 : static osl_time_t startTime;
54 :
55 :
56 : /*--------------------------------------------------
57 : * osl_getSystemTime
58 : *-------------------------------------------------*/
59 :
60 3206 : sal_Bool SAL_CALL osl_getSystemTime(TimeValue* tv)
61 : {
62 : #ifdef __MACH__
63 : clock_serv_t cclock;
64 : mach_timespec_t mts;
65 :
66 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
67 : clock_get_time(cclock, &mts);
68 : mach_port_deallocate(mach_task_self(), cclock);
69 :
70 : tv->Seconds = mts.tv_sec;
71 : tv->Nanosec = mts.tv_nsec;
72 : #else
73 : int res;
74 : osl_time_t tp;
75 : #if defined(USE_CLOCK_GETTIME)
76 3206 : res = clock_gettime(CLOCK_REALTIME, &tp);
77 : #else
78 : res = gettimeofday(&tp, NULL);
79 : #endif
80 :
81 3206 : if (res != 0)
82 : {
83 0 : return sal_False;
84 : }
85 :
86 3206 : tv->Seconds = tp.tv_sec;
87 : #if defined(USE_CLOCK_GETTIME)
88 3206 : tv->Nanosec = tp.tv_nsec;
89 : #else
90 : tv->Nanosec = tp.tv_usec * 1000;
91 : #endif
92 : #endif
93 3206 : return sal_True;
94 : }
95 :
96 :
97 : /*--------------------------------------------------
98 : * osl_getDateTimeFromTimeValue
99 : *-------------------------------------------------*/
100 :
101 23288 : sal_Bool SAL_CALL osl_getDateTimeFromTimeValue( const TimeValue* pTimeVal, oslDateTime* pDateTime )
102 : {
103 : struct tm *pSystemTime;
104 : struct tm tmBuf;
105 : time_t atime;
106 :
107 23288 : atime = (time_t)pTimeVal->Seconds;
108 :
109 : /* Convert time from type time_t to struct tm */
110 23288 : pSystemTime = gmtime_r( &atime, &tmBuf );
111 :
112 :
113 : /* Convert struct tm to struct oslDateTime */
114 23288 : if ( pSystemTime != NULL )
115 : {
116 23288 : pDateTime->NanoSeconds = pTimeVal->Nanosec;
117 23288 : pDateTime->Seconds = pSystemTime->tm_sec;
118 23288 : pDateTime->Minutes = pSystemTime->tm_min;
119 23288 : pDateTime->Hours = pSystemTime->tm_hour;
120 23288 : pDateTime->Day = pSystemTime->tm_mday;
121 23288 : pDateTime->DayOfWeek = pSystemTime->tm_wday;
122 23288 : pDateTime->Month = pSystemTime->tm_mon + 1;
123 23288 : pDateTime->Year = pSystemTime->tm_year + 1900;
124 :
125 23288 : return sal_True;
126 : }
127 :
128 0 : return sal_False;
129 : }
130 :
131 : /*--------------------------------------------------
132 : * osl_getTimeValueFromDateTime
133 : *--------------------------------------------------*/
134 :
135 0 : sal_Bool SAL_CALL osl_getTimeValueFromDateTime( const oslDateTime* pDateTime, TimeValue* pTimeVal )
136 : {
137 : struct tm aTime;
138 : time_t nSeconds;
139 :
140 : /* Convert struct oslDateTime to struct tm */
141 0 : aTime.tm_sec = pDateTime->Seconds;
142 0 : aTime.tm_min = pDateTime->Minutes;
143 0 : aTime.tm_hour = pDateTime->Hours;
144 0 : aTime.tm_mday = pDateTime->Day;
145 0 : aTime.tm_wday = pDateTime->DayOfWeek;
146 :
147 0 : if ( pDateTime->Month > 0 )
148 0 : aTime.tm_mon = pDateTime->Month - 1;
149 : else
150 0 : return sal_False;
151 :
152 0 : aTime.tm_year = pDateTime->Year - 1900;
153 :
154 0 : aTime.tm_isdst = -1;
155 0 : aTime.tm_wday = 0;
156 0 : aTime.tm_yday = 0;
157 :
158 : /* Convert time to calendar value */
159 0 : nSeconds = mktime( &aTime );
160 :
161 : /*
162 : * mktime expects the struct tm to be in local timezone, so we have to adjust
163 : * the returned value to be timezone neutral.
164 : */
165 :
166 0 : if ( nSeconds != (time_t) -1 )
167 : {
168 : time_t bias;
169 :
170 : /* timezone corrections */
171 0 : tzset();
172 :
173 : #if defined(STRUCT_TM_HAS_GMTOFF)
174 : /* members of struct tm are corrected by mktime */
175 0 : bias = 0 - aTime.tm_gmtoff;
176 :
177 : #elif defined(HAS_ALTZONE)
178 : /* check if daylight saving time is in effect */
179 : bias = aTime.tm_isdst > 0 ? altzone : timezone;
180 : #else
181 : /* exspect daylight saving time to be one hour */
182 : bias = aTime.tm_isdst > 0 ? timezone - 3600 : timezone;
183 : #endif
184 :
185 0 : pTimeVal->Seconds = nSeconds;
186 0 : pTimeVal->Nanosec = pDateTime->NanoSeconds;
187 :
188 0 : if ( nSeconds > bias )
189 0 : pTimeVal->Seconds -= bias;
190 :
191 0 : return sal_True;
192 : }
193 :
194 0 : return sal_False;
195 : }
196 :
197 :
198 : /*--------------------------------------------------
199 : * osl_getLocalTimeFromSystemTime
200 : *--------------------------------------------------*/
201 :
202 21831 : sal_Bool SAL_CALL osl_getLocalTimeFromSystemTime( const TimeValue* pSystemTimeVal, TimeValue* pLocalTimeVal )
203 : {
204 : struct tm *pLocalTime;
205 : struct tm tmBuf;
206 : time_t bias;
207 : time_t atime;
208 :
209 21831 : atime = (time_t) pSystemTimeVal->Seconds;
210 21831 : pLocalTime = localtime_r( &atime, &tmBuf );
211 :
212 : #if defined(STRUCT_TM_HAS_GMTOFF)
213 : /* members of struct tm are corrected by mktime */
214 21831 : bias = -pLocalTime->tm_gmtoff;
215 :
216 : #elif defined(HAS_ALTZONE)
217 : /* check if daylight saving time is in effect */
218 : bias = pLocalTime->tm_isdst > 0 ? altzone : timezone;
219 : #else
220 : /* expect daylight saving time to be one hour */
221 : bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone;
222 : #endif
223 :
224 21831 : if ( (sal_Int64) pSystemTimeVal->Seconds > bias )
225 : {
226 21831 : pLocalTimeVal->Seconds = pSystemTimeVal->Seconds - bias;
227 21831 : pLocalTimeVal->Nanosec = pSystemTimeVal->Nanosec;
228 :
229 21831 : return sal_True;
230 : }
231 :
232 0 : return sal_False;
233 : }
234 :
235 : /*--------------------------------------------------
236 : * osl_getSystemTimeFromLocalTime
237 : *--------------------------------------------------*/
238 :
239 0 : sal_Bool SAL_CALL osl_getSystemTimeFromLocalTime( const TimeValue* pLocalTimeVal, TimeValue* pSystemTimeVal )
240 : {
241 : struct tm *pLocalTime;
242 : struct tm tmBuf;
243 : time_t bias;
244 : time_t atime;
245 :
246 0 : atime = (time_t) pLocalTimeVal->Seconds;
247 :
248 : /* Convert atime, which is a local time, to it's GMT equivalent. Then, get
249 : * the timezone offset for the local time for the GMT equivalent time. Note
250 : * that we cannot directly use local time to determine the timezone offset
251 : * because GMT is the only reliable time that we can determine timezone
252 : * offset from.
253 : */
254 :
255 0 : atime = mktime( gmtime_r( &atime, &tmBuf ) );
256 0 : pLocalTime = localtime_r( &atime, &tmBuf );
257 :
258 : #if defined(STRUCT_TM_HAS_GMTOFF)
259 : /* members of struct tm are corrected by mktime */
260 0 : bias = 0 - pLocalTime->tm_gmtoff;
261 :
262 : #elif defined(HAS_ALTZONE)
263 : /* check if daylight saving time is in effect */
264 : bias = pLocalTime->tm_isdst > 0 ? altzone : timezone;
265 : #else
266 : /* exspect daylight saving time to be one hour */
267 : bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone;
268 : #endif
269 :
270 0 : if ( (sal_Int64) pLocalTimeVal->Seconds + bias > 0 )
271 : {
272 0 : pSystemTimeVal->Seconds = pLocalTimeVal->Seconds + bias;
273 0 : pSystemTimeVal->Nanosec = pLocalTimeVal->Nanosec;
274 :
275 0 : return sal_True;
276 : }
277 :
278 0 : return sal_False;
279 : }
280 :
281 1735 : void sal_initGlobalTimer()
282 : {
283 : #ifdef __MACH__
284 : clock_serv_t cclock;
285 :
286 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
287 : clock_get_time(cclock, &startTime);
288 : mach_port_deallocate(mach_task_self(), cclock);
289 : #else /* ! (MACOSX || IOS) */
290 : int res;
291 : #if defined(USE_CLOCK_GETTIME)
292 1735 : res = clock_gettime(CLOCK_REALTIME, &startTime);
293 : #else /* Ndef USE_CLOCK_GETTIME */
294 : res = gettimeofday( &startTime, NULL );
295 : #endif /* NDef USE_CLOCK_GETTIME */
296 : assert(res == 0);
297 : (void) res;
298 : #endif /* ! (MACOSX || IOS) */
299 1735 : }
300 :
301 6520 : sal_uInt32 SAL_CALL osl_getGlobalTimer()
302 : {
303 : sal_uInt32 nSeconds;
304 :
305 : #ifdef __MACH__
306 : clock_serv_t cclock;
307 : mach_timespec_t currentTime;
308 :
309 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
310 : clock_get_time(cclock, ¤tTime);
311 : mach_port_deallocate(mach_task_self(), cclock);
312 :
313 : nSeconds = ( currentTime.tv_sec - startTime.tv_sec );
314 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 );
315 : #else
316 : osl_time_t currentTime;
317 : int res;
318 :
319 : #if defined(USE_CLOCK_GETTIME)
320 6520 : res = clock_gettime(CLOCK_REALTIME, ¤tTime);
321 : #else
322 : res = gettimeofday( ¤tTime, NULL );
323 : #endif
324 : assert(res == 0);
325 :
326 6520 : if (res != 0)
327 0 : return 0;
328 :
329 6520 : nSeconds = (sal_uInt32)( currentTime.tv_sec - startTime.tv_sec );
330 : #if defined(USE_CLOCK_GETTIME)
331 6520 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 );
332 : #else
333 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_usec - startTime.tv_usec) / 1000 );
334 : #endif
335 : #endif
336 6520 : return nSeconds;
337 : }
338 :
339 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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