4 * RtlTimeToTimeFields, RtlTimeFieldsToTime and defines are taken from ReactOS and
5 * adapted to wine with special permissions of the author. This code is
6 * Copyright 2002 Rex Jolliff (rex@lvcablemodem.com)
8 * Copyright 1999 Juergen Schmied
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "wine/port.h"
33 #ifdef HAVE_SYS_TIME_H
34 # include <sys/time.h>
40 #define NONAMELESSUNION
41 #define NONAMELESSSTRUCT
43 #define WIN32_NO_STATUS
46 #include "wine/unicode.h"
47 #include "wine/debug.h"
48 #include "ntdll_misc.h"
50 WINE_DEFAULT_DEBUG_CHANNEL(ntdll
);
52 static RTL_CRITICAL_SECTION TIME_GetBias_section
;
53 static RTL_CRITICAL_SECTION_DEBUG critsect_debug
=
55 0, 0, &TIME_GetBias_section
,
56 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
57 0, 0, { (DWORD_PTR
)(__FILE__
": TIME_GetBias_section") }
59 static RTL_CRITICAL_SECTION TIME_GetBias_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
61 /* TimeZone registry key values */
62 static const WCHAR TZInformationKeyW
[] = { 'M','a','c','h','i','n','e','\\',
63 'S','Y','S','T','E','M','\\','C','u','r','r','e','n','t','C','o','n','t','r',
64 'o','l','S','e','t','\\','C','o','n','t','r','o','l','\\','T','i','m','e','z',
65 'o','n','e','I','n','f','o','r','m','a','t','i','o','n', 0};
66 static const WCHAR TZStandardStartW
[] = {
67 'S','t','a','n','d','a','r','d','s','t','a','r','t', 0};
68 static const WCHAR TZDaylightStartW
[] = {
69 'D','a','y','l','i','g','h','t','s','t','a','r','t', 0};
70 static const WCHAR TZDaylightBiasW
[] = {
71 'D','a','y','l','i','g','h','t','B','i','a','s', 0};
72 static const WCHAR TZStandardBiasW
[] = {
73 'S','t','a','n','d','a','r','d','B','i','a','s', 0};
74 static const WCHAR TZBiasW
[] = {'B','i','a','s', 0};
75 static const WCHAR TZDaylightNameW
[] = {
76 'D','a','y','l','i','g','h','t','N','a','m','e', 0};
77 static const WCHAR TZStandardNameW
[] = {
78 'S','t','a','n','d','a','r','d','N','a','m','e', 0};
81 #define SETTIME_MAX_ADJUST 120
83 /* This structure is used to store strings that represent all of the time zones
84 * in the world. (This is used to help GetTimeZoneInformation)
88 const char *psTZFromUnix
;
89 WCHAR psTZWindows
[32];
94 static const struct tagTZ_INFO TZ_INFO
[] =
97 {'D','a','t','e','l','i','n','e',' ','S','t','a','n','d','a','r','d',' ',
98 'T','i','m','e','\0'}, -720, 0},
100 {'S','a','m','o','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
103 {'H','a','w','a','i','i','a','n',' ','S','t','a','n','d','a','r','d',' ',
104 'T','i','m','e','\0'}, 600, 0},
106 {'A','l','a','s','k','a','n',' ','S','t','a','n','d','a','r','d',' ',
107 'T','i','m','e',0}, 540, 0 },
109 {'A','l','a','s','k','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
110 'i','m','e','\0'}, 480, 1},
112 {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T',
113 'i','m','e','\0'}, 480, 0},
115 {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T',
116 'i','m','e','\0'}, 420, 1},
118 {'U','S',' ','M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a',
119 'r','d',' ','T','i','m','e','\0'}, 420, 0},
121 {'M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a','r','d',' ',
122 'T','i','m','e','\0'}, 360, 1},
124 {'C','e','n','t','r','a','l',' ','A','m','e','r','i','c','a',' ','S','t',
125 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, 360, 0},
127 {'C','e','n','t','r','a','l',' ','S','t','a','n','d','a','r','d',' ','T',
128 'i','m','e','\0'}, 300, 1},
130 {'S','A',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r',
131 'd',' ','T','i','m','e','\0'}, 300, 0},
133 {'S','A',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r',
134 'd',' ','T','i','m','e',0}, 300, 0 },
136 {'E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r','d',' ','T',
137 'i','m','e','\0'}, 240, 1},
139 {'U','S',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
140 'd',' ','T','i','m','e','\0'}, 300, 0},
142 {'E','a','s','t','e','r','n',' ','C','e','n','t','r','a','l',' ','S','t','a','n','d','a','r',
143 'd',' ','T','i','m','e','\0'}, 300, 0},
145 {'A','t','l','a','n','t','i','c',' ','S','t','a','n','d','a','r','d',' ',
146 'T','i','m','e','\0'}, 180, 1},
148 {'S','A',' ','W','e','s','t','e','r','n',' ','S','t','a','n','d','a','r',
149 'd',' ','T','i','m','e','\0'}, 240, 0},
151 {'P','a','c','i','f','i','c',' ','S','A',' ','S','t','a','n','d','a','r',
152 'd',' ','T','i','m','e','\0'}, 240, 0},
154 {'P','a','c','i','f','i','c',' ','S','A',' ','S','t','a','n','d','a','r',
155 'd',' ','T','i','m','e',0}, 180, 1},
157 {'A','t','l','a','n','t','i','c',' ','S','t','a','n','d','a','r','d',' ',
158 'T','i','m','e',0}, 240, 0 },
160 {'N','e','w','f','o','u','n','d','l','a','n','d',' ','S','t','a','n','d',
161 'a','r','d',' ','T','i','m','e','\0'}, 150, 1},
163 {'N','e','w','f','o','u','n','d','l','a','n','d',' ','S','t','a','n','d',
164 'a','r','d',' ','T','i','m','e',0}, 210, 0 },
166 {'B','r','a','z','i','l','i','a','n',' ','S','t','a','n','d','a','r','d',
167 ' ','T','i','m','e','\0'}, 180, 0},
169 {'B','r','a','z','i','l','i','a','n',' ','S','u','m','m','e','r',
170 ' ','T','i','m','e','\0'}, 120, 1},
172 {'S','A',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
173 'd',' ','T','i','m','e','\0'}, 180, 0},
175 {'G','r','e','e','n','l','a','n','d',' ','S','t','a','n','d','a','r','d',
176 ' ','T','i','m','e','\0'}, 120, 1},
178 {'M','i','d','-','A','t','l','a','n','t','i','c',' ','S','t','a','n','d',
179 'a','r','d',' ','T','i','m','e','\0'}, 120, 0},
181 {'A','z','o','r','e','s',' ','S','t','a','n','d','a','r','d',' ','T','i',
184 {'A','z','o','r','e','s',' ','S','t','a','n','d','a','r','d',' ','T','i',
185 'm','e','\0'}, 0, 1},
187 {'C','a','p','e',' ','V','e','r','d','e',' ','S','t','a','n','d','a','r',
188 'd',' ','T','i','m','e','\0'}, 60, 0},
190 {'W','e','s','t','e','r','n',' ','E','u','r','o','p','e','a','n',' ','S','u','m','m','e','r',' ','T','i','m','e','\0'}, -60, 1},
192 {'G','r','e','e','n','w','i','c','h',' ','S','t','a','n','d','a','r','d',
193 ' ','T','i','m','e','\0'}, 0, 0},
195 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
198 {'I','r','i','s','h',' ','S','u','m','m','e','r',' ','T','i','m','e','\0'},
201 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
204 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
207 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e','a','n',' ',
208 'T','i','m','e','\0'}, -60, 0},
210 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a',
211 'n','d','a','r','d',' ','T','i','m','e','\0'}, -120, 1},
213 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a',
214 'n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0},
216 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','D','a','y',
217 'l','i','g','h','t',' ','T','i','m','e','\0'}, -120, 1},
219 {'W','.',' ','C','e','n','t','r','a','l',' ','A','f','r','i','c','a',' ',
220 'S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0},
222 {'E','.',' ','E','u','r','o','p','e',' ','S','t','a','n','d','a','r','d',
223 ' ','T','i','m','e','\0'}, -180, 1},
225 {'E','g','y','p','t',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
228 {'C','e','n','t','r','a','l',' ','A','f','r','i','c','a','n',' '
229 ,'T','i','m','e','\0'}, -120, 0},
231 {'S','o','u','t','h',' ','A','f','r','i','c','a',' ','S','t','a','n','d',
232 'a','r','d',' ','T','i','m','e','\0'}, -120, 0},
234 {'I','s','r','a','e','l',' ','S','t','a','n','d','a','r','d',' ','T','i',
235 'm','e','\0'}, -120, 0},
237 {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
238 'i','m','e','\0'}, -180, 0},
240 {'A','r','a','b','i','c',' ','S','t','a','n','d','a','r','d',' ','T','i',
241 'm','e','\0'}, -240, 1},
243 {'A','r','a','b',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
246 {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
247 'i','m','e','\0'}, -240, 1},
249 {'E','.',' ','A','f','r','i','c','a',' ','S','t','a','n','d','a','r','d',
250 ' ','T','i','m','e','\0'}, -180, 0},
252 {'I','r','a','n',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
255 {'I','r','a','n',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
258 {'A','r','a','b','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
259 'i','m','e','\0'}, -240, 0},
261 {'C','a','u','c','a','s','u','s',' ','S','t','a','n','d','a','r','d',' ',
262 'T','i','m','e',0}, -240, 0 },
264 {'C','a','u','c','a','s','u','s',' ','S','t','a','n','d','a','r','d',' ',
265 'T','i','m','e','\0'}, -300, 1},
267 {'A','f','g','h','a','n','i','s','t','a','n',' ','S','t','a','n','d','a',
268 'r','d',' ','T','i','m','e','\0'}, -270, 0},
270 {'S','a','m','a','r','a',' ','S','t','a','n','d','a','r','d',' ','T','i',
271 'm','e','\0'}, -270, 1},
273 {'E','k','a','t','e','r','i','n','b','u','r','g',' ','S','t','a','n','d',
274 'a','r','d',' ','T','i','m','e','\0'}, -360, 1},
276 {'W','e','s','t',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',
277 ' ','T','i','m','e','\0'}, -300, 0},
279 {'I','n','d','i','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
282 {'N','e','p','a','l',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
285 {'N','.',' ','C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t',
286 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -420, 1},
288 {'C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t','a','n','d',
289 'a','r','d',' ','T','i','m','e','\0'}, -360, 0},
291 {'S','r','i',' ','L','a','n','k','a',' ','S','t','a','n','d','a','r','d',
292 ' ','T','i','m','e','\0'}, -360, 0},
294 {'M','y','a','n','m','a','r',' ','S','t','a','n','d','a','r','d',' ','T',
295 'i','m','e','\0'}, -390, 0},
297 {'S','E',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',' ','T',
298 'i','m','e','\0'}, -420, 0},
300 {'N','o','r','t','h',' ','A','s','i','a',' ','S','t','a','n','d','a','r',
301 'd',' ','T','i','m','e',0}, -420, 0},
303 {'N','o','r','t','h',' ','A','s','i','a',' ','S','t','a','n','d','a','r',
304 'd',' ','T','i','m','e','\0'}, -480, 1},
306 {'N','o','r','t','h',' ','A','s','i','a',' ','E','a','s','t',' ','S','t',
307 'a','n','d','a','r','d',' ','T','i','m','e',0}, -480, 0},
309 {'C','h','i','n','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
312 {'N','o','r','t','h',' ','A','s','i','a',' ','E','a','s','t',' ','S','t',
313 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -540, 1},
315 {'M','a','l','a','y',' ','P','e','n','i','n','s','u','l','a',' ','S','t',
316 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -480, 0},
318 {'W','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
319 'a','r','d',' ','T','i','m','e','\0'}, -480, 0},
321 {'T','o','k','y','o',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
324 {'K','o','r','e','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
327 {'Y','a','k','u','t','s','k',' ','S','t','a','n','d','a','r','d',' ','T',
328 'i','m','e','\0'}, -600, 1},
330 {'C','e','n','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a',
331 'n','d','a','r','d',' ','T','i','m','e','\0'}, -570, 0},
333 {'C','e','n','.',' ','A','u','s','t','r','a','l','i','a',' ','D','a','y',
334 'l','i','g','h','t',' ','T','i','m','e','\0'}, -630, 1},
336 {'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
337 'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
339 {'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
340 'a','r','d',' ','T','i','m','e','\0'}, -660, 1},
342 {'W','e','s','t',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d',
343 'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
345 {'V','l','a','d','i','v','o','s','t','o','k',' ','S','t','a','n','d','a',
346 'r','d',' ','T','i','m','e',0}, -600, 0 },
348 {'W','e','s','t',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d',
349 'a','r','d',' ','T','i','m','e',0}, -600, 0},
351 {'V','l','a','d','i','v','o','s','t','o','k',' ','S','t','a','n','d','a',
352 'r','d',' ','T','i','m','e','\0'}, -660, 1},
354 {'C','e','n','t','r','a','l',' ','P','a','c','i','f','i','c',' ','S','t',
355 'a','n','d','a','r','d',' ','T','i','m','e',0}, -660, 0},
357 {'C','e','n','t','r','a','l',' ','P','a','c','i','f','i','c',' ','S','t',
358 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -720, 1},
360 {'N','e','w',' ','Z','e','a','l','a','n','d',' ','S','t','a','n','d','a',
361 'r','d',' ','T','i','m','e','\0'}, -720, 0},
363 {'N','e','w',' ','Z','e','a','l','a','n','d',' ','D','a','y','l','i','g',
364 'h','t',' ','T','i','m','e','\0'}, -780, 1},
366 {'F','i','j','i',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
369 {'T','o','n','g','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
372 {'N','.',' ','C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t',
373 'a','n','d','a','r','d',' ','T','i','m','e',0 }, -360, 0},
375 {'N','o','v','o','s','i','b','i','r','s','k',' ','S','t','a','n','d','a',
376 'r','d',' ','T','i','m','e','\0'}, -360, 1},
378 {'A','n','a','d','y','r',' ','S','t','a','n','d','a','r','d',' ','T','i',
379 'm','e','\0'}, -720, 1},
381 {'H','o','n','g',' ','K','o','n','g',' ','S','t','a','n','d','a','r','d',
382 ' ','T','i','m','e','\0'}, -480, 0},
384 {'U','r','u','g','u','a','y','a','n',' ','T','i','m','e','\0'}, 180, 0},
386 {'M','a','l','a','y','s','i','a','n',' ','T','i','m','e','\0'}, -480, 0},
388 {'P','h','i','l','i','p','p','i','n','e',' ','T','i','m','e','\0'}, -480, 0},
390 {'N','o','v','o','s','i','b','i','r','s','k',' ','S','u','m','m','e','r',
391 ' ','T','i','m','e','\0'}, -480, 1}
394 #define TICKSPERSEC 10000000
395 #define TICKSPERMSEC 10000
396 #define SECSPERDAY 86400
397 #define SECSPERHOUR 3600
398 #define SECSPERMIN 60
399 #define MINSPERHOUR 60
400 #define HOURSPERDAY 24
401 #define EPOCHWEEKDAY 1 /* Jan 1, 1601 was Monday */
402 #define DAYSPERWEEK 7
403 #define EPOCHYEAR 1601
404 #define DAYSPERNORMALYEAR 365
405 #define DAYSPERLEAPYEAR 366
406 #define MONSPERYEAR 12
407 #define DAYSPERQUADRICENTENNIUM (365 * 400 + 97)
408 #define DAYSPERNORMALCENTURY (365 * 100 + 24)
409 #define DAYSPERNORMALQUADRENNIUM (365 * 4 + 1)
411 /* 1601 to 1970 is 369 years plus 89 leap days */
412 #define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
413 #define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC)
414 /* 1601 to 1980 is 379 years plus 91 leap days */
415 #define SECS_1601_TO_1980 ((379 * 365 + 91) * (ULONGLONG)SECSPERDAY)
416 #define TICKS_1601_TO_1980 (SECS_1601_TO_1980 * TICKSPERSEC)
417 /* max ticks that can be represented as Unix time */
418 #define TICKS_1601_TO_UNIX_MAX ((SECS_1601_TO_1970 + INT_MAX) * TICKSPERSEC)
421 static const int MonthLengths
[2][MONSPERYEAR
] =
423 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
424 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
427 static inline int IsLeapYear(int Year
)
429 return Year
% 4 == 0 && (Year
% 100 != 0 || Year
% 400 == 0) ? 1 : 0;
432 /***********************************************************************
433 * NTDLL_get_server_timeout
435 * Convert a NTDLL timeout into a timeval struct to send to the server.
437 void NTDLL_get_server_timeout( abs_time_t
*when
, const LARGE_INTEGER
*timeout
)
441 if (!timeout
) /* infinite timeout */
443 when
->sec
= when
->usec
= 0;
445 else if (timeout
->QuadPart
<= 0) /* relative timeout */
449 if (-timeout
->QuadPart
> (LONGLONG
)INT_MAX
* TICKSPERSEC
)
450 when
->sec
= when
->usec
= INT_MAX
;
453 ULONG sec
= RtlEnlargedUnsignedDivide( -timeout
->QuadPart
, TICKSPERSEC
, &remainder
);
454 gettimeofday( &tv
, 0 );
455 when
->sec
= tv
.tv_sec
+ sec
;
456 if ((when
->usec
= tv
.tv_usec
+ (remainder
/ 10)) >= 1000000)
458 when
->usec
-= 1000000;
461 if (when
->sec
< tv
.tv_sec
) /* overflow */
462 when
->sec
= when
->usec
= INT_MAX
;
465 else /* absolute time */
467 if (timeout
->QuadPart
< TICKS_1601_TO_1970
)
468 when
->sec
= when
->usec
= 0;
469 else if (timeout
->QuadPart
> TICKS_1601_TO_UNIX_MAX
)
470 when
->sec
= when
->usec
= INT_MAX
;
473 when
->sec
= RtlEnlargedUnsignedDivide( timeout
->QuadPart
- TICKS_1601_TO_1970
,
474 TICKSPERSEC
, &remainder
);
475 when
->usec
= remainder
/ 10;
481 /***********************************************************************
482 * NTDLL_from_server_timeout
484 * Convert a timeval struct from the server into an NTDLL timeout.
486 void NTDLL_from_server_timeout( LARGE_INTEGER
*timeout
, const abs_time_t
*when
)
488 timeout
->QuadPart
= when
->sec
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
489 timeout
->QuadPart
+= when
->usec
* 10;
493 /******************************************************************************
494 * RtlTimeToTimeFields [NTDLL.@]
496 * Convert a time into a TIME_FIELDS structure.
499 * liTime [I] Time to convert.
500 * TimeFields [O] Destination for the converted time.
505 VOID WINAPI
RtlTimeToTimeFields(
506 const LARGE_INTEGER
*liTime
,
507 PTIME_FIELDS TimeFields
)
510 long int cleaps
, years
, yearday
, months
;
514 /* Extract millisecond from time and convert time into seconds */
515 TimeFields
->Milliseconds
=
516 (CSHORT
) (( liTime
->QuadPart
% TICKSPERSEC
) / TICKSPERMSEC
);
517 Time
= liTime
->QuadPart
/ TICKSPERSEC
;
519 /* The native version of RtlTimeToTimeFields does not take leap seconds
522 /* Split the time into days and seconds within the day */
523 Days
= Time
/ SECSPERDAY
;
524 SecondsInDay
= Time
% SECSPERDAY
;
526 /* compute time of day */
527 TimeFields
->Hour
= (CSHORT
) (SecondsInDay
/ SECSPERHOUR
);
528 SecondsInDay
= SecondsInDay
% SECSPERHOUR
;
529 TimeFields
->Minute
= (CSHORT
) (SecondsInDay
/ SECSPERMIN
);
530 TimeFields
->Second
= (CSHORT
) (SecondsInDay
% SECSPERMIN
);
532 /* compute day of week */
533 TimeFields
->Weekday
= (CSHORT
) ((EPOCHWEEKDAY
+ Days
) % DAYSPERWEEK
);
535 /* compute year, month and day of month. */
536 cleaps
=( 3 * ((4 * Days
+ 1227) / DAYSPERQUADRICENTENNIUM
) + 3 ) / 4;
537 Days
+= 28188 + cleaps
;
538 years
= (20 * Days
- 2442) / (5 * DAYSPERNORMALQUADRENNIUM
);
539 yearday
= Days
- (years
* DAYSPERNORMALQUADRENNIUM
)/4;
540 months
= (64 * yearday
) / 1959;
541 /* the result is based on a year starting on March.
542 * To convert take 12 from Januari and Februari and
543 * increase the year by one. */
545 TimeFields
->Month
= months
- 1;
546 TimeFields
->Year
= years
+ 1524;
548 TimeFields
->Month
= months
- 13;
549 TimeFields
->Year
= years
+ 1525;
551 /* calculation of day of month is based on the wonderful
552 * sequence of INT( n * 30.6): it reproduces the
553 * 31-30-31-30-31-31 month lengths exactly for small n's */
554 TimeFields
->Day
= yearday
- (1959 * months
) / 64 ;
558 /******************************************************************************
559 * RtlTimeFieldsToTime [NTDLL.@]
561 * Convert a TIME_FIELDS structure into a time.
564 * ftTimeFields [I] TIME_FIELDS structure to convert.
565 * Time [O] Destination for the converted time.
571 BOOLEAN WINAPI
RtlTimeFieldsToTime(
572 PTIME_FIELDS tfTimeFields
,
575 int month
, year
, cleaps
, day
;
577 /* FIXME: normalize the TIME_FIELDS structure here */
578 /* No, native just returns 0 (error) if the fields are not */
579 if( tfTimeFields
->Milliseconds
< 0 || tfTimeFields
->Milliseconds
> 999 ||
580 tfTimeFields
->Second
< 0 || tfTimeFields
->Second
> 59 ||
581 tfTimeFields
->Minute
< 0 || tfTimeFields
->Minute
> 59 ||
582 tfTimeFields
->Hour
< 0 || tfTimeFields
->Hour
> 23 ||
583 tfTimeFields
->Month
< 1 || tfTimeFields
->Month
> 12 ||
584 tfTimeFields
->Day
< 1 ||
585 tfTimeFields
->Day
> MonthLengths
586 [ tfTimeFields
->Month
==2 || IsLeapYear(tfTimeFields
->Year
)]
587 [ tfTimeFields
->Month
- 1] ||
588 tfTimeFields
->Year
< 1601 )
591 /* now calculate a day count from the date
592 * First start counting years from March. This way the leap days
593 * are added at the end of the year, not somewhere in the middle.
594 * Formula's become so much less complicate that way.
595 * To convert: add 12 to the month numbers of Jan and Feb, and
596 * take 1 from the year */
597 if(tfTimeFields
->Month
< 3) {
598 month
= tfTimeFields
->Month
+ 13;
599 year
= tfTimeFields
->Year
- 1;
601 month
= tfTimeFields
->Month
+ 1;
602 year
= tfTimeFields
->Year
;
604 cleaps
= (3 * (year
/ 100) + 3) / 4; /* nr of "century leap years"*/
605 day
= (36525 * year
) / 100 - cleaps
+ /* year * dayperyr, corrected */
606 (1959 * month
) / 64 + /* months * daypermonth */
607 tfTimeFields
->Day
- /* day of the month */
608 584817 ; /* zero that on 1601-01-01 */
611 Time
->QuadPart
= (((((LONGLONG
) day
* HOURSPERDAY
+
612 tfTimeFields
->Hour
) * MINSPERHOUR
+
613 tfTimeFields
->Minute
) * SECSPERMIN
+
614 tfTimeFields
->Second
) * 1000 +
615 tfTimeFields
->Milliseconds
) * TICKSPERMSEC
;
620 /***********************************************************************
621 * TIME_GetBias [internal]
623 * Helper function calculates delta local time from UTC.
626 * utc [I] The current utc time.
627 * pdaylight [I] Local daylight.
630 * The bias for the current timezone.
632 static int TIME_GetBias(time_t utc
, int *pdaylight
)
635 static time_t last_utc
;
636 static int last_bias
;
637 static int last_daylight
;
640 RtlEnterCriticalSection( &TIME_GetBias_section
);
643 *pdaylight
= last_daylight
;
647 ptm
= localtime(&utc
);
648 *pdaylight
= last_daylight
=
649 ptm
->tm_isdst
; /* daylight for local timezone */
651 ptm
->tm_isdst
= *pdaylight
; /* use local daylight, not that of Greenwich */
653 ret
= last_bias
= (int)(utc
-mktime(ptm
));
655 RtlLeaveCriticalSection( &TIME_GetBias_section
);
659 /******************************************************************************
660 * RtlLocalTimeToSystemTime [NTDLL.@]
662 * Convert a local time into system time.
665 * LocalTime [I] Local time to convert.
666 * SystemTime [O] Destination for the converted time.
669 * Success: STATUS_SUCCESS.
670 * Failure: An NTSTATUS error code indicating the problem.
672 NTSTATUS WINAPI
RtlLocalTimeToSystemTime( const LARGE_INTEGER
*LocalTime
,
673 PLARGE_INTEGER SystemTime
)
678 TRACE("(%p, %p)\n", LocalTime
, SystemTime
);
681 bias
= TIME_GetBias(gmt
, &daylight
);
683 SystemTime
->QuadPart
= LocalTime
->QuadPart
- bias
* (LONGLONG
)TICKSPERSEC
;
684 return STATUS_SUCCESS
;
687 /******************************************************************************
688 * RtlSystemTimeToLocalTime [NTDLL.@]
690 * Convert a system time into a local time.
693 * SystemTime [I] System time to convert.
694 * LocalTime [O] Destination for the converted time.
697 * Success: STATUS_SUCCESS.
698 * Failure: An NTSTATUS error code indicating the problem.
700 NTSTATUS WINAPI
RtlSystemTimeToLocalTime( const LARGE_INTEGER
*SystemTime
,
701 PLARGE_INTEGER LocalTime
)
706 TRACE("(%p, %p)\n", SystemTime
, LocalTime
);
709 bias
= TIME_GetBias(gmt
, &daylight
);
711 LocalTime
->QuadPart
= SystemTime
->QuadPart
+ bias
* (LONGLONG
)TICKSPERSEC
;
712 return STATUS_SUCCESS
;
715 /******************************************************************************
716 * RtlTimeToSecondsSince1970 [NTDLL.@]
718 * Convert a time into a count of seconds since 1970.
721 * Time [I] Time to convert.
722 * Seconds [O] Destination for the converted time.
726 * Failure: FALSE, if the resulting value will not fit in a DWORD.
728 BOOLEAN WINAPI
RtlTimeToSecondsSince1970( const LARGE_INTEGER
*Time
, LPDWORD Seconds
)
730 ULONGLONG tmp
= ((ULONGLONG
)Time
->u
.HighPart
<< 32) | Time
->u
.LowPart
;
731 tmp
= RtlLargeIntegerDivide( tmp
, TICKSPERSEC
, NULL
);
732 tmp
-= SECS_1601_TO_1970
;
733 if (tmp
> 0xffffffff) return FALSE
;
734 *Seconds
= (DWORD
)tmp
;
738 /******************************************************************************
739 * RtlTimeToSecondsSince1980 [NTDLL.@]
741 * Convert a time into a count of seconds since 1980.
744 * Time [I] Time to convert.
745 * Seconds [O] Destination for the converted time.
749 * Failure: FALSE, if the resulting value will not fit in a DWORD.
751 BOOLEAN WINAPI
RtlTimeToSecondsSince1980( const LARGE_INTEGER
*Time
, LPDWORD Seconds
)
753 ULONGLONG tmp
= ((ULONGLONG
)Time
->u
.HighPart
<< 32) | Time
->u
.LowPart
;
754 tmp
= RtlLargeIntegerDivide( tmp
, TICKSPERSEC
, NULL
);
755 tmp
-= SECS_1601_TO_1980
;
756 if (tmp
> 0xffffffff) return FALSE
;
757 *Seconds
= (DWORD
)tmp
;
761 /******************************************************************************
762 * RtlSecondsSince1970ToTime [NTDLL.@]
764 * Convert a count of seconds since 1970 to a time.
767 * Seconds [I] Time to convert.
768 * Time [O] Destination for the converted time.
773 void WINAPI
RtlSecondsSince1970ToTime( DWORD Seconds
, LARGE_INTEGER
*Time
)
775 ULONGLONG secs
= Seconds
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
776 Time
->u
.LowPart
= (DWORD
)secs
;
777 Time
->u
.HighPart
= (DWORD
)(secs
>> 32);
780 /******************************************************************************
781 * RtlSecondsSince1980ToTime [NTDLL.@]
783 * Convert a count of seconds since 1980 to a time.
786 * Seconds [I] Time to convert.
787 * Time [O] Destination for the converted time.
792 void WINAPI
RtlSecondsSince1980ToTime( DWORD Seconds
, LARGE_INTEGER
*Time
)
794 ULONGLONG secs
= Seconds
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1980
;
795 Time
->u
.LowPart
= (DWORD
)secs
;
796 Time
->u
.HighPart
= (DWORD
)(secs
>> 32);
799 /******************************************************************************
800 * RtlTimeToElapsedTimeFields [NTDLL.@]
802 * Convert a time to a count of elapsed seconds.
805 * Time [I] Time to convert.
806 * TimeFields [O] Destination for the converted time.
811 void WINAPI
RtlTimeToElapsedTimeFields( const LARGE_INTEGER
*Time
, PTIME_FIELDS TimeFields
)
816 time
= RtlExtendedLargeIntegerDivide( Time
->QuadPart
, TICKSPERSEC
, &rem
);
817 TimeFields
->Milliseconds
= rem
/ TICKSPERMSEC
;
819 /* time is now in seconds */
820 TimeFields
->Year
= 0;
821 TimeFields
->Month
= 0;
822 TimeFields
->Day
= RtlExtendedLargeIntegerDivide( time
, SECSPERDAY
, &rem
);
824 /* rem is now the remaining seconds in the last day */
825 TimeFields
->Second
= rem
% 60;
827 TimeFields
->Minute
= rem
% 60;
828 TimeFields
->Hour
= rem
/ 60;
831 /***********************************************************************
832 * NtQuerySystemTime [NTDLL.@]
833 * ZwQuerySystemTime [NTDLL.@]
835 * Get the current system time.
838 * Time [O] Destination for the current system time.
841 * Success: STATUS_SUCCESS.
842 * Failure: An NTSTATUS error code indicating the problem.
844 NTSTATUS WINAPI
NtQuerySystemTime( PLARGE_INTEGER Time
)
848 gettimeofday( &now
, 0 );
849 Time
->QuadPart
= now
.tv_sec
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
850 Time
->QuadPart
+= now
.tv_usec
* 10;
851 return STATUS_SUCCESS
;
854 /******************************************************************************
855 * NtQueryPerformanceCounter [NTDLL.@]
857 * Note: Windows uses a timer clocked at a multiple of 1193182 Hz. There is a
858 * good number of applications that crash when the returned frequency is either
859 * lower or higher then what Windows gives. Also too high counter values are
860 * reported to give problems.
862 NTSTATUS WINAPI
NtQueryPerformanceCounter( PLARGE_INTEGER Counter
, PLARGE_INTEGER Frequency
)
866 if (!Counter
) return STATUS_ACCESS_VIOLATION
;
867 gettimeofday( &now
, 0 );
868 /* convert a counter that increments at a rate of 1 MHz
869 * to one of 1.193182 MHz, with some care for arithmetic
870 * overflow ( will not overflow for 5000 years ) and
871 * good accuracy ( 105/88 = 1.19318182) */
872 Counter
->QuadPart
= (((now
.tv_sec
- server_start_time
) * (ULONGLONG
)1000000 + now
.tv_usec
) * 105) / 88;
873 if (Frequency
) Frequency
->QuadPart
= 1193182;
874 return STATUS_SUCCESS
;
877 /***********************************************************************
878 * TIME_GetTZAsStr [internal]
880 * Helper function that returns the given timezone as a string.
883 * utc [I] The current utc time.
884 * bias [I] The bias of the current timezone.
891 * This could be done with a hash table instead of merely iterating through a
892 * table, however with the small amount of entries (60 or so) I didn't think
895 static const WCHAR
* TIME_GetTZAsStr (time_t utc
, int bias
, int dst
)
898 struct tm
*ptm
= localtime(&utc
);
901 if (!strftime (psTZName
, 7, "%Z", ptm
))
904 for (i
=0; i
<(sizeof(TZ_INFO
) / sizeof(struct tagTZ_INFO
)); i
++)
906 if ( strcmp(TZ_INFO
[i
].psTZFromUnix
, psTZName
) == 0 &&
907 TZ_INFO
[i
].bias
== bias
&&
908 TZ_INFO
[i
].dst
== dst
910 return TZ_INFO
[i
].psTZWindows
;
912 FIXME("Can't match system time zone name \"%s\", bias=%d and dst=%d "
913 "to an entry in TZ_INFO. Please add appropriate entry to "
914 "TZ_INFO and submit as patch to wine-patches\n",psTZName
,bias
,dst
);
918 /*** TIME_GetTimeZoneInfoFromReg: helper for GetTimeZoneInformation ***/
921 static int TIME_GetTimeZoneInfoFromReg(RTL_TIME_ZONE_INFORMATION
*tzinfo
)
924 KEY_VALUE_PARTIAL_INFORMATION
* KpInfo
=
925 (KEY_VALUE_PARTIAL_INFORMATION
*) buf
;
928 OBJECT_ATTRIBUTES attr
;
929 UNICODE_STRING nameW
;
931 attr
.Length
= sizeof(attr
);
932 attr
.RootDirectory
= 0;
933 attr
.ObjectName
= &nameW
;
935 attr
.SecurityDescriptor
= NULL
;
936 attr
.SecurityQualityOfService
= NULL
;
937 RtlInitUnicodeString( &nameW
, TZInformationKeyW
);
938 if (!NtOpenKey( &hkey
, KEY_ALL_ACCESS
, &attr
)) {
940 #define GTZIFR_N( valkey, tofield) \
941 RtlInitUnicodeString( &nameW, valkey );\
942 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\
943 sizeof(buf), &size )) { \
944 if( size >= (sizeof((tofield)) + \
945 offsetof(KEY_VALUE_PARTIAL_INFORMATION,Data))) { \
947 KpInfo->Data, sizeof(tofield)); \
950 #define GTZIFR_S( valkey, tofield) \
951 RtlInitUnicodeString( &nameW, valkey );\
952 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\
953 sizeof(buf), &size )) { \
954 size_t len = (strlenW( (WCHAR*)KpInfo->Data ) + 1) * sizeof(WCHAR); \
955 if (len > sizeof(tofield)) len = sizeof(tofield); \
956 memcpy( tofield, KpInfo->Data, len ); \
957 tofield[(len/sizeof(WCHAR))-1] = 0; \
960 GTZIFR_N( TZStandardStartW
, tzinfo
->StandardDate
)
961 GTZIFR_N( TZDaylightStartW
, tzinfo
->DaylightDate
)
962 GTZIFR_N( TZBiasW
, tzinfo
->Bias
)
963 GTZIFR_N( TZStandardBiasW
, tzinfo
->StandardBias
)
964 GTZIFR_N( TZDaylightBiasW
, tzinfo
->DaylightBias
)
965 GTZIFR_S( TZStandardNameW
, tzinfo
->StandardName
)
966 GTZIFR_S( TZDaylightNameW
, tzinfo
->DaylightName
)
976 /***********************************************************************
977 * RtlQueryTimeZoneInformation [NTDLL.@]
979 * Get information about the current timezone.
982 * tzinfo [O] Destination for the retrieved timezone info.
985 * Success: STATUS_SUCCESS.
986 * Failure: An NTSTATUS error code indicating the problem.
988 NTSTATUS WINAPI
RtlQueryTimeZoneInformation(RTL_TIME_ZONE_INFORMATION
*tzinfo
)
994 memset(tzinfo
, 0, sizeof(RTL_TIME_ZONE_INFORMATION
));
996 if( !TIME_GetTimeZoneInfoFromReg(tzinfo
)) {
999 bias
= TIME_GetBias(gmt
, &daylight
);
1001 tzinfo
->Bias
= -bias
/ 60;
1002 tzinfo
->StandardBias
= 0;
1003 tzinfo
->DaylightBias
= -60;
1004 tzinfo
->StandardName
[0]='\0';
1005 tzinfo
->DaylightName
[0]='\0';
1006 psTZ
= TIME_GetTZAsStr (gmt
, (-bias
/60), daylight
);
1007 if (psTZ
) strcpyW( tzinfo
->StandardName
, psTZ
);
1009 return STATUS_SUCCESS
;
1012 /***********************************************************************
1013 * RtlSetTimeZoneInformation [NTDLL.@]
1015 * Set the current time zone information.
1018 * tzinfo [I] Timezone information to set.
1021 * Success: STATUS_SUCCESS.
1022 * Failure: An NTSTATUS error code indicating the problem.
1025 * Uses the obsolete unix timezone structure and tz_dsttime member.
1027 NTSTATUS WINAPI
RtlSetTimeZoneInformation( const RTL_TIME_ZONE_INFORMATION
*tzinfo
)
1029 #ifdef HAVE_SETTIMEOFDAY
1032 tz
.tz_minuteswest
= tzinfo
->Bias
;
1034 tz
.tz_dsttime
= DST_NONE
;
1038 if(!settimeofday(NULL
, &tz
))
1039 return STATUS_SUCCESS
;
1041 return STATUS_PRIVILEGE_NOT_HELD
;
1044 /***********************************************************************
1045 * NtSetSystemTime [NTDLL.@]
1046 * ZwSetSystemTime [NTDLL.@]
1048 * Set the system time.
1051 * NewTime [I] The time to set.
1052 * OldTime [O] Optional destination for the previous system time.
1055 * Success: STATUS_SUCCESS.
1056 * Failure: An NTSTATUS error code indicating the problem.
1058 NTSTATUS WINAPI
NtSetSystemTime(const LARGE_INTEGER
*NewTime
, LARGE_INTEGER
*OldTime
)
1068 /* Return the old time if necessary */
1070 NtQuerySystemTime(OldTime
);
1072 RtlTimeToTimeFields(NewTime
, &tf
);
1074 /* call gettimeofday to get the current timezone */
1075 gettimeofday(&tv
, &tz
);
1077 /* get delta local time from utc */
1078 bias
= TIME_GetBias(oldsec
, &dst
);
1080 /* get the number of seconds */
1081 t
.tm_sec
= tf
.Second
;
1082 t
.tm_min
= tf
.Minute
;
1083 t
.tm_hour
= tf
.Hour
;
1085 t
.tm_mon
= tf
.Month
- 1;
1086 t
.tm_year
= tf
.Year
- 1900;
1089 /* correct for timezone and daylight */
1092 /* set the new time */
1094 tv
.tv_usec
= tf
.Milliseconds
* 1000;
1096 /* error and sanity check*/
1097 if(sec
== (time_t)-1 || abs((int)(sec
-oldsec
)) > SETTIME_MAX_ADJUST
) {
1100 #ifdef HAVE_SETTIMEOFDAY
1101 err
= settimeofday(&tv
, NULL
); /* 0 is OK, -1 is error */
1103 return STATUS_SUCCESS
;
1109 ERR("Cannot set time to %d/%d/%d %d:%d:%d Time adjustment %ld %s\n",
1110 tf
.Year
, tf
.Month
, tf
.Day
, tf
.Hour
, tf
.Minute
, tf
.Second
,
1112 err
== -1 ? "No Permission"
1113 : sec
== (time_t)-1 ? "" : "is too large." );
1116 return STATUS_INVALID_PARAMETER
;
1118 return STATUS_PRIVILEGE_NOT_HELD
;
1120 return STATUS_NOT_IMPLEMENTED
;