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 : #include <sal/config.h>
21 :
22 : #include "saltime.hxx"
23 : #include "system.hxx"
24 :
25 : #include <osl/diagnose.h>
26 : #include <osl/time.h>
27 : #include <time.h>
28 : #include <unistd.h>
29 :
30 : #ifdef __MACH__
31 : #include <mach/clock.h>
32 : #include <mach/mach.h>
33 : #endif
34 :
35 : /* FIXME: detection should be done in configure script */
36 : #if defined(MACOSX) || defined(IOS) || defined(FREEBSD) || defined(NETBSD) || \
37 : defined(LINUX) || defined(OPENBSD) || defined(DRAGONFLY)
38 : #define STRUCT_TM_HAS_GMTOFF 1
39 :
40 : #elif defined(SOLARIS)
41 : #define HAS_ALTZONE 1
42 : #endif
43 :
44 : #ifdef __MACH__
45 : typedef mach_timespec_t osl_time_t;
46 : #else
47 : #if defined(_POSIX_TIMERS)
48 : #define USE_CLOCK_GETTIME
49 : typedef struct timespec osl_time_t;
50 : #else
51 : typedef struct timeval osl_time_t;
52 : #endif
53 : #endif
54 : static osl_time_t startTime;
55 :
56 17152 : sal_Bool SAL_CALL osl_getSystemTime(TimeValue* tv)
57 : {
58 : #ifdef __MACH__
59 : clock_serv_t cclock;
60 : mach_timespec_t mts;
61 :
62 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
63 : clock_get_time(cclock, &mts);
64 : mach_port_deallocate(mach_task_self(), cclock);
65 :
66 : tv->Seconds = mts.tv_sec;
67 : tv->Nanosec = mts.tv_nsec;
68 : #else
69 : int res;
70 : osl_time_t tp;
71 : #if defined(USE_CLOCK_GETTIME)
72 17152 : res = clock_gettime(CLOCK_REALTIME, &tp);
73 : #else
74 : res = gettimeofday(&tp, NULL);
75 : #endif
76 :
77 17152 : if (res != 0)
78 : {
79 0 : return sal_False;
80 : }
81 :
82 17152 : tv->Seconds = tp.tv_sec;
83 : #if defined(USE_CLOCK_GETTIME)
84 17152 : tv->Nanosec = tp.tv_nsec;
85 : #else
86 : tv->Nanosec = tp.tv_usec * 1000;
87 : #endif
88 : #endif
89 17152 : return sal_True;
90 : }
91 :
92 59401 : sal_Bool SAL_CALL osl_getDateTimeFromTimeValue( const TimeValue* pTimeVal, oslDateTime* pDateTime )
93 : {
94 : struct tm *pSystemTime;
95 : struct tm tmBuf;
96 : time_t atime;
97 :
98 59401 : atime = (time_t)pTimeVal->Seconds;
99 :
100 : /* Convert time from type time_t to struct tm */
101 59401 : pSystemTime = gmtime_r( &atime, &tmBuf );
102 :
103 : /* Convert struct tm to struct oslDateTime */
104 59401 : if ( pSystemTime != NULL )
105 : {
106 59401 : pDateTime->NanoSeconds = pTimeVal->Nanosec;
107 59401 : pDateTime->Seconds = pSystemTime->tm_sec;
108 59401 : pDateTime->Minutes = pSystemTime->tm_min;
109 59401 : pDateTime->Hours = pSystemTime->tm_hour;
110 59401 : pDateTime->Day = pSystemTime->tm_mday;
111 59401 : pDateTime->DayOfWeek = pSystemTime->tm_wday;
112 59401 : pDateTime->Month = pSystemTime->tm_mon + 1;
113 59401 : pDateTime->Year = pSystemTime->tm_year + 1900;
114 :
115 59401 : return sal_True;
116 : }
117 :
118 0 : return sal_False;
119 : }
120 :
121 0 : sal_Bool SAL_CALL osl_getTimeValueFromDateTime( const oslDateTime* pDateTime, TimeValue* pTimeVal )
122 : {
123 : struct tm aTime;
124 : time_t nSeconds;
125 :
126 : /* Convert struct oslDateTime to struct tm */
127 0 : aTime.tm_sec = pDateTime->Seconds;
128 0 : aTime.tm_min = pDateTime->Minutes;
129 0 : aTime.tm_hour = pDateTime->Hours;
130 0 : aTime.tm_mday = pDateTime->Day;
131 0 : aTime.tm_wday = pDateTime->DayOfWeek;
132 :
133 0 : if ( pDateTime->Month > 0 )
134 0 : aTime.tm_mon = pDateTime->Month - 1;
135 : else
136 0 : return sal_False;
137 :
138 0 : aTime.tm_year = pDateTime->Year - 1900;
139 :
140 0 : aTime.tm_isdst = -1;
141 0 : aTime.tm_wday = 0;
142 0 : aTime.tm_yday = 0;
143 :
144 : #if defined(STRUCT_TM_HAS_GMTOFF)
145 0 : aTime.tm_gmtoff = 0;
146 : #endif
147 :
148 : /* Convert time to calendar value */
149 0 : nSeconds = mktime( &aTime );
150 :
151 : /*
152 : * mktime expects the struct tm to be in local timezone, so we have to adjust
153 : * the returned value to be timezone neutral.
154 : */
155 :
156 0 : if ( nSeconds != (time_t) -1 )
157 : {
158 : time_t bias;
159 :
160 : /* timezone corrections */
161 0 : tzset();
162 :
163 : #if defined(STRUCT_TM_HAS_GMTOFF)
164 : /* members of struct tm are corrected by mktime */
165 0 : bias = 0 - aTime.tm_gmtoff;
166 :
167 : #elif defined(HAS_ALTZONE)
168 : /* check if daylight saving time is in effect */
169 : bias = aTime.tm_isdst > 0 ? altzone : timezone;
170 : #else
171 : /* exspect daylight saving time to be one hour */
172 : bias = aTime.tm_isdst > 0 ? timezone - 3600 : timezone;
173 : #endif
174 :
175 0 : pTimeVal->Seconds = nSeconds;
176 0 : pTimeVal->Nanosec = pDateTime->NanoSeconds;
177 :
178 0 : if ( nSeconds > bias )
179 0 : pTimeVal->Seconds -= bias;
180 :
181 0 : return sal_True;
182 : }
183 :
184 0 : return sal_False;
185 : }
186 :
187 47368 : sal_Bool SAL_CALL osl_getLocalTimeFromSystemTime( const TimeValue* pSystemTimeVal, TimeValue* pLocalTimeVal )
188 : {
189 : struct tm *pLocalTime;
190 : struct tm tmBuf;
191 : time_t bias;
192 : time_t atime;
193 :
194 47368 : atime = (time_t) pSystemTimeVal->Seconds;
195 47368 : pLocalTime = localtime_r( &atime, &tmBuf );
196 :
197 : #if defined(STRUCT_TM_HAS_GMTOFF)
198 : /* members of struct tm are corrected by mktime */
199 47368 : bias = -pLocalTime->tm_gmtoff;
200 :
201 : #elif defined(HAS_ALTZONE)
202 : /* check if daylight saving time is in effect */
203 : bias = pLocalTime->tm_isdst > 0 ? altzone : timezone;
204 : #else
205 : /* expect daylight saving time to be one hour */
206 : bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone;
207 : #endif
208 :
209 47368 : if ( (sal_Int64) pSystemTimeVal->Seconds > bias )
210 : {
211 47368 : pLocalTimeVal->Seconds = pSystemTimeVal->Seconds - bias;
212 47368 : pLocalTimeVal->Nanosec = pSystemTimeVal->Nanosec;
213 :
214 47368 : return sal_True;
215 : }
216 :
217 0 : return sal_False;
218 : }
219 :
220 0 : sal_Bool SAL_CALL osl_getSystemTimeFromLocalTime( const TimeValue* pLocalTimeVal, TimeValue* pSystemTimeVal )
221 : {
222 : struct tm *pLocalTime;
223 : struct tm tmBuf;
224 : time_t bias;
225 : time_t atime;
226 :
227 0 : atime = (time_t) pLocalTimeVal->Seconds;
228 :
229 : /* Convert atime, which is a local time, to it's GMT equivalent. Then, get
230 : * the timezone offset for the local time for the GMT equivalent time. Note
231 : * that we cannot directly use local time to determine the timezone offset
232 : * because GMT is the only reliable time that we can determine timezone
233 : * offset from.
234 : */
235 :
236 0 : atime = mktime( gmtime_r( &atime, &tmBuf ) );
237 0 : pLocalTime = localtime_r( &atime, &tmBuf );
238 :
239 : #if defined(STRUCT_TM_HAS_GMTOFF)
240 : /* members of struct tm are corrected by mktime */
241 0 : bias = 0 - pLocalTime->tm_gmtoff;
242 :
243 : #elif defined(HAS_ALTZONE)
244 : /* check if daylight saving time is in effect */
245 : bias = pLocalTime->tm_isdst > 0 ? altzone : timezone;
246 : #else
247 : /* exspect daylight saving time to be one hour */
248 : bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone;
249 : #endif
250 :
251 0 : if ( (sal_Int64) pLocalTimeVal->Seconds + bias > 0 )
252 : {
253 0 : pSystemTimeVal->Seconds = pLocalTimeVal->Seconds + bias;
254 0 : pSystemTimeVal->Nanosec = pLocalTimeVal->Nanosec;
255 :
256 0 : return sal_True;
257 : }
258 :
259 0 : return sal_False;
260 : }
261 :
262 1847 : void sal_initGlobalTimer()
263 : {
264 : #ifdef __MACH__
265 : clock_serv_t cclock;
266 :
267 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
268 : clock_get_time(cclock, &startTime);
269 : mach_port_deallocate(mach_task_self(), cclock);
270 : #else /* ! (MACOSX || IOS) */
271 : #if defined(USE_CLOCK_GETTIME)
272 1847 : clock_gettime(CLOCK_REALTIME, &startTime);
273 : #else /* Ndef USE_CLOCK_GETTIME */
274 : gettimeofday( &startTime, NULL );
275 : #endif /* NDef USE_CLOCK_GETTIME */
276 : #endif /* ! (MACOSX || IOS) */
277 1847 : }
278 :
279 17202 : sal_uInt32 SAL_CALL osl_getGlobalTimer()
280 : {
281 : sal_uInt32 nSeconds;
282 :
283 : #ifdef __MACH__
284 : clock_serv_t cclock;
285 : mach_timespec_t currentTime;
286 :
287 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
288 : clock_get_time(cclock, ¤tTime);
289 : mach_port_deallocate(mach_task_self(), cclock);
290 :
291 : nSeconds = ( currentTime.tv_sec - startTime.tv_sec );
292 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 );
293 : #else
294 : osl_time_t currentTime;
295 :
296 : #if defined(USE_CLOCK_GETTIME)
297 17202 : clock_gettime(CLOCK_REALTIME, ¤tTime);
298 : #else
299 : gettimeofday( ¤tTime, NULL );
300 : #endif
301 :
302 17202 : nSeconds = (sal_uInt32)( currentTime.tv_sec - startTime.tv_sec );
303 : #if defined(USE_CLOCK_GETTIME)
304 17202 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 );
305 : #else
306 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_usec - startTime.tv_usec) / 1000 );
307 : #endif
308 : #endif
309 17202 : return nSeconds;
310 : }
311 :
312 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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