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.h"
23 : #include "system.h"
24 :
25 : #include <osl/diagnose.h>
26 : #include <osl/time.h>
27 : #include <time.h>
28 : #include <assert.h>
29 : #include <unistd.h>
30 :
31 : #ifdef __MACH__
32 : #include <mach/clock.h>
33 : #include <mach/mach.h>
34 : #endif
35 :
36 : /* FIXME: detection should be done in configure script */
37 : #if defined(MACOSX) || defined(IOS) || defined(FREEBSD) || defined(NETBSD) || \
38 : defined(LINUX) || defined(OPENBSD) || defined(DRAGONFLY)
39 : #define STRUCT_TM_HAS_GMTOFF 1
40 :
41 : #elif defined(SOLARIS)
42 : #define HAS_ALTZONE 1
43 : #endif
44 :
45 : #ifdef __MACH__
46 : typedef mach_timespec_t osl_time_t;
47 : #else
48 : #if defined(_POSIX_TIMERS)
49 : #define USE_CLOCK_GETTIME
50 : typedef struct timespec osl_time_t;
51 : #else
52 : typedef struct timeval osl_time_t;
53 : #endif
54 : #endif
55 : static osl_time_t startTime;
56 :
57 0 : sal_Bool SAL_CALL osl_getSystemTime(TimeValue* tv)
58 : {
59 : #ifdef __MACH__
60 : clock_serv_t cclock;
61 : mach_timespec_t mts;
62 :
63 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
64 : clock_get_time(cclock, &mts);
65 : mach_port_deallocate(mach_task_self(), cclock);
66 :
67 : tv->Seconds = mts.tv_sec;
68 : tv->Nanosec = mts.tv_nsec;
69 : #else
70 : int res;
71 : osl_time_t tp;
72 : #if defined(USE_CLOCK_GETTIME)
73 0 : res = clock_gettime(CLOCK_REALTIME, &tp);
74 : #else
75 : res = gettimeofday(&tp, NULL);
76 : #endif
77 :
78 0 : if (res != 0)
79 : {
80 0 : return sal_False;
81 : }
82 :
83 0 : tv->Seconds = tp.tv_sec;
84 : #if defined(USE_CLOCK_GETTIME)
85 0 : tv->Nanosec = tp.tv_nsec;
86 : #else
87 : tv->Nanosec = tp.tv_usec * 1000;
88 : #endif
89 : #endif
90 0 : return sal_True;
91 : }
92 :
93 0 : sal_Bool SAL_CALL osl_getDateTimeFromTimeValue( const TimeValue* pTimeVal, oslDateTime* pDateTime )
94 : {
95 : struct tm *pSystemTime;
96 : struct tm tmBuf;
97 : time_t atime;
98 :
99 0 : atime = (time_t)pTimeVal->Seconds;
100 :
101 : /* Convert time from type time_t to struct tm */
102 0 : pSystemTime = gmtime_r( &atime, &tmBuf );
103 :
104 : /* Convert struct tm to struct oslDateTime */
105 0 : if ( pSystemTime != NULL )
106 : {
107 0 : pDateTime->NanoSeconds = pTimeVal->Nanosec;
108 0 : pDateTime->Seconds = pSystemTime->tm_sec;
109 0 : pDateTime->Minutes = pSystemTime->tm_min;
110 0 : pDateTime->Hours = pSystemTime->tm_hour;
111 0 : pDateTime->Day = pSystemTime->tm_mday;
112 0 : pDateTime->DayOfWeek = pSystemTime->tm_wday;
113 0 : pDateTime->Month = pSystemTime->tm_mon + 1;
114 0 : pDateTime->Year = pSystemTime->tm_year + 1900;
115 :
116 0 : return sal_True;
117 : }
118 :
119 0 : return sal_False;
120 : }
121 :
122 0 : sal_Bool SAL_CALL osl_getTimeValueFromDateTime( const oslDateTime* pDateTime, TimeValue* pTimeVal )
123 : {
124 : struct tm aTime;
125 : time_t nSeconds;
126 :
127 : /* Convert struct oslDateTime to struct tm */
128 0 : aTime.tm_sec = pDateTime->Seconds;
129 0 : aTime.tm_min = pDateTime->Minutes;
130 0 : aTime.tm_hour = pDateTime->Hours;
131 0 : aTime.tm_mday = pDateTime->Day;
132 0 : aTime.tm_wday = pDateTime->DayOfWeek;
133 :
134 0 : if ( pDateTime->Month > 0 )
135 0 : aTime.tm_mon = pDateTime->Month - 1;
136 : else
137 0 : return sal_False;
138 :
139 0 : aTime.tm_year = pDateTime->Year - 1900;
140 :
141 0 : aTime.tm_isdst = -1;
142 0 : aTime.tm_wday = 0;
143 0 : aTime.tm_yday = 0;
144 :
145 : #if defined(STRUCT_TM_HAS_GMTOFF)
146 0 : aTime.tm_gmtoff = 0;
147 : #endif
148 :
149 : /* Convert time to calendar value */
150 0 : nSeconds = mktime( &aTime );
151 :
152 : /*
153 : * mktime expects the struct tm to be in local timezone, so we have to adjust
154 : * the returned value to be timezone neutral.
155 : */
156 :
157 0 : if ( nSeconds != (time_t) -1 )
158 : {
159 : time_t bias;
160 :
161 : /* timezone corrections */
162 0 : tzset();
163 :
164 : #if defined(STRUCT_TM_HAS_GMTOFF)
165 : /* members of struct tm are corrected by mktime */
166 0 : bias = 0 - aTime.tm_gmtoff;
167 :
168 : #elif defined(HAS_ALTZONE)
169 : /* check if daylight saving time is in effect */
170 : bias = aTime.tm_isdst > 0 ? altzone : timezone;
171 : #else
172 : /* exspect daylight saving time to be one hour */
173 : bias = aTime.tm_isdst > 0 ? timezone - 3600 : timezone;
174 : #endif
175 :
176 0 : pTimeVal->Seconds = nSeconds;
177 0 : pTimeVal->Nanosec = pDateTime->NanoSeconds;
178 :
179 0 : if ( nSeconds > bias )
180 0 : pTimeVal->Seconds -= bias;
181 :
182 0 : return sal_True;
183 : }
184 :
185 0 : return sal_False;
186 : }
187 :
188 0 : sal_Bool SAL_CALL osl_getLocalTimeFromSystemTime( const TimeValue* pSystemTimeVal, TimeValue* pLocalTimeVal )
189 : {
190 : struct tm *pLocalTime;
191 : struct tm tmBuf;
192 : time_t bias;
193 : time_t atime;
194 :
195 0 : atime = (time_t) pSystemTimeVal->Seconds;
196 0 : pLocalTime = localtime_r( &atime, &tmBuf );
197 :
198 : #if defined(STRUCT_TM_HAS_GMTOFF)
199 : /* members of struct tm are corrected by mktime */
200 0 : bias = -pLocalTime->tm_gmtoff;
201 :
202 : #elif defined(HAS_ALTZONE)
203 : /* check if daylight saving time is in effect */
204 : bias = pLocalTime->tm_isdst > 0 ? altzone : timezone;
205 : #else
206 : /* expect daylight saving time to be one hour */
207 : bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone;
208 : #endif
209 :
210 0 : if ( (sal_Int64) pSystemTimeVal->Seconds > bias )
211 : {
212 0 : pLocalTimeVal->Seconds = pSystemTimeVal->Seconds - bias;
213 0 : pLocalTimeVal->Nanosec = pSystemTimeVal->Nanosec;
214 :
215 0 : return sal_True;
216 : }
217 :
218 0 : return sal_False;
219 : }
220 :
221 0 : sal_Bool SAL_CALL osl_getSystemTimeFromLocalTime( const TimeValue* pLocalTimeVal, TimeValue* pSystemTimeVal )
222 : {
223 : struct tm *pLocalTime;
224 : struct tm tmBuf;
225 : time_t bias;
226 : time_t atime;
227 :
228 0 : atime = (time_t) pLocalTimeVal->Seconds;
229 :
230 : /* Convert atime, which is a local time, to it's GMT equivalent. Then, get
231 : * the timezone offset for the local time for the GMT equivalent time. Note
232 : * that we cannot directly use local time to determine the timezone offset
233 : * because GMT is the only reliable time that we can determine timezone
234 : * offset from.
235 : */
236 :
237 0 : atime = mktime( gmtime_r( &atime, &tmBuf ) );
238 0 : pLocalTime = localtime_r( &atime, &tmBuf );
239 :
240 : #if defined(STRUCT_TM_HAS_GMTOFF)
241 : /* members of struct tm are corrected by mktime */
242 0 : bias = 0 - pLocalTime->tm_gmtoff;
243 :
244 : #elif defined(HAS_ALTZONE)
245 : /* check if daylight saving time is in effect */
246 : bias = pLocalTime->tm_isdst > 0 ? altzone : timezone;
247 : #else
248 : /* exspect daylight saving time to be one hour */
249 : bias = pLocalTime->tm_isdst > 0 ? timezone - 3600 : timezone;
250 : #endif
251 :
252 0 : if ( (sal_Int64) pLocalTimeVal->Seconds + bias > 0 )
253 : {
254 0 : pSystemTimeVal->Seconds = pLocalTimeVal->Seconds + bias;
255 0 : pSystemTimeVal->Nanosec = pLocalTimeVal->Nanosec;
256 :
257 0 : return sal_True;
258 : }
259 :
260 0 : return sal_False;
261 : }
262 :
263 85011 : void sal_initGlobalTimer()
264 : {
265 : #ifdef __MACH__
266 : clock_serv_t cclock;
267 :
268 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
269 : clock_get_time(cclock, &startTime);
270 : mach_port_deallocate(mach_task_self(), cclock);
271 : #else /* ! (MACOSX || IOS) */
272 : int res;
273 : #if defined(USE_CLOCK_GETTIME)
274 85011 : res = clock_gettime(CLOCK_REALTIME, &startTime);
275 : #else /* Ndef USE_CLOCK_GETTIME */
276 : res = gettimeofday( &startTime, NULL );
277 : #endif /* NDef USE_CLOCK_GETTIME */
278 : assert(res == 0);
279 : (void) res;
280 : #endif /* ! (MACOSX || IOS) */
281 85011 : }
282 :
283 85011 : sal_uInt32 SAL_CALL osl_getGlobalTimer()
284 : {
285 : sal_uInt32 nSeconds;
286 :
287 : #ifdef __MACH__
288 : clock_serv_t cclock;
289 : mach_timespec_t currentTime;
290 :
291 : host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
292 : clock_get_time(cclock, ¤tTime);
293 : mach_port_deallocate(mach_task_self(), cclock);
294 :
295 : nSeconds = ( currentTime.tv_sec - startTime.tv_sec );
296 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 );
297 : #else
298 : osl_time_t currentTime;
299 : int res;
300 :
301 : #if defined(USE_CLOCK_GETTIME)
302 85011 : res = clock_gettime(CLOCK_REALTIME, ¤tTime);
303 : #else
304 : res = gettimeofday( ¤tTime, NULL );
305 : #endif
306 : assert(res == 0);
307 :
308 85011 : if (res != 0)
309 0 : return 0;
310 :
311 85011 : nSeconds = (sal_uInt32)( currentTime.tv_sec - startTime.tv_sec );
312 : #if defined(USE_CLOCK_GETTIME)
313 85011 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_nsec - startTime.tv_nsec) / 1000000 );
314 : #else
315 : nSeconds = ( nSeconds * 1000 ) + (long) (( currentTime.tv_usec - startTime.tv_usec) / 1000 );
316 : #endif
317 : #endif
318 85011 : return nSeconds;
319 : }
320 :
321 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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