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
44 #include "wine/unicode.h"
45 #include "wine/debug.h"
46 #include "ntdll_misc.h"
48 WINE_DEFAULT_DEBUG_CHANNEL(ntdll
);
50 static RTL_CRITICAL_SECTION TIME_GetBias_section
;
51 static RTL_CRITICAL_SECTION_DEBUG critsect_debug
=
53 0, 0, &TIME_GetBias_section
,
54 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
55 0, 0, { (DWORD_PTR
)(__FILE__
": TIME_GetBias_section") }
57 static RTL_CRITICAL_SECTION TIME_GetBias_section
= { &critsect_debug
, -1, 0, 0, 0, 0 };
59 /* TimeZone registry key values */
60 static const WCHAR TZInformationKeyW
[] = { 'M','a','c','h','i','n','e','\\',
61 'S','Y','S','T','E','M','\\','C','u','r','r','e','n','t','C','o','n','t','r',
62 'o','l','S','e','t','\\','C','o','n','t','r','o','l','\\','T','i','m','e','z',
63 'o','n','e','I','n','f','o','r','m','a','t','i','o','n', 0};
64 static const WCHAR TZStandardStartW
[] = {
65 'S','t','a','n','d','a','r','d','s','t','a','r','t', 0};
66 static const WCHAR TZDaylightStartW
[] = {
67 'D','a','y','l','i','g','h','t','s','t','a','r','t', 0};
68 static const WCHAR TZDaylightBiasW
[] = {
69 'D','a','y','l','i','g','h','t','B','i','a','s', 0};
70 static const WCHAR TZStandardBiasW
[] = {
71 'S','t','a','n','d','a','r','d','B','i','a','s', 0};
72 static const WCHAR TZBiasW
[] = {'B','i','a','s', 0};
73 static const WCHAR TZDaylightNameW
[] = {
74 'D','a','y','l','i','g','h','t','N','a','m','e', 0};
75 static const WCHAR TZStandardNameW
[] = {
76 'S','t','a','n','d','a','r','d','N','a','m','e', 0};
79 #define SETTIME_MAX_ADJUST 120
81 /* This structure is used to store strings that represent all of the time zones
82 * in the world. (This is used to help GetTimeZoneInformation)
86 const char *psTZFromUnix
;
87 WCHAR psTZWindows
[32];
92 static const struct tagTZ_INFO TZ_INFO
[] =
95 {'D','a','t','e','l','i','n','e',' ','S','t','a','n','d','a','r','d',' ',
96 'T','i','m','e','\0'}, -720, 0},
98 {'S','a','m','o','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
101 {'H','a','w','a','i','i','a','n',' ','S','t','a','n','d','a','r','d',' ',
102 'T','i','m','e','\0'}, 600, 0},
104 {'A','l','a','s','k','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
105 'i','m','e','\0'}, 480, 1},
107 {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T',
108 'i','m','e','\0'}, 480, 0},
110 {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T',
111 'i','m','e','\0'}, 420, 1},
113 {'U','S',' ','M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a',
114 'r','d',' ','T','i','m','e','\0'}, 420, 0},
116 {'M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a','r','d',' ',
117 'T','i','m','e','\0'}, 360, 1},
119 {'C','e','n','t','r','a','l',' ','A','m','e','r','i','c','a',' ','S','t',
120 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, 360, 0},
122 {'C','e','n','t','r','a','l',' ','S','t','a','n','d','a','r','d',' ','T',
123 'i','m','e','\0'}, 300, 1},
125 {'S','A',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r',
126 'd',' ','T','i','m','e','\0'}, 300, 0},
128 {'E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r','d',' ','T',
129 'i','m','e','\0'}, 240, 1},
131 {'U','S',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
132 'd',' ','T','i','m','e','\0'}, 300, 0},
134 {'E','a','s','t','e','r','n',' ','C','e','n','t','r','a','l',' ','S','t','a','n','d','a','r',
135 'd',' ','T','i','m','e','\0'}, 300, 0},
137 {'A','t','l','a','n','t','i','c',' ','S','t','a','n','d','a','r','d',' ',
138 'T','i','m','e','\0'}, 180, 1},
140 {'S','A',' ','W','e','s','t','e','r','n',' ','S','t','a','n','d','a','r',
141 'd',' ','T','i','m','e','\0'}, 240, 0},
143 {'P','a','c','i','f','i','c',' ','S','A',' ','S','t','a','n','d','a','r',
144 'd',' ','T','i','m','e','\0'}, 240, 0},
146 {'N','e','w','f','o','u','n','d','l','a','n','d',' ','S','t','a','n','d',
147 'a','r','d',' ','T','i','m','e','\0'}, 150, 1},
149 {'B','r','a','z','i','l','i','a','n',' ','S','t','a','n','d','a','r','d',
150 ' ','T','i','m','e','\0'}, 180, 0},
152 {'B','r','a','z','i','l','i','a','n',' ','S','u','m','m','e','r',
153 ' ','T','i','m','e','\0'}, 120, 1},
155 {'S','A',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
156 'd',' ','T','i','m','e','\0'}, 180, 0},
158 {'G','r','e','e','n','l','a','n','d',' ','S','t','a','n','d','a','r','d',
159 ' ','T','i','m','e','\0'}, 120, 1},
161 {'M','i','d','-','A','t','l','a','n','t','i','c',' ','S','t','a','n','d',
162 'a','r','d',' ','T','i','m','e','\0'}, 120, 0},
164 {'A','z','o','r','e','s',' ','S','t','a','n','d','a','r','d',' ','T','i',
165 'm','e','\0'}, 0, 1},
167 {'C','a','p','e',' ','V','e','r','d','e',' ','S','t','a','n','d','a','r',
168 'd',' ','T','i','m','e','\0'}, 60, 0},
170 {'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},
172 {'G','r','e','e','n','w','i','c','h',' ','S','t','a','n','d','a','r','d',
173 ' ','T','i','m','e','\0'}, 0, 0},
175 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
178 {'I','r','i','s','h',' ','S','u','m','m','e','r',' ','T','i','m','e','\0'},
181 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
184 {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
187 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e','a','n',' ',
188 'T','i','m','e','\0'}, -60, 0},
190 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a',
191 'n','d','a','r','d',' ','T','i','m','e','\0'}, -120, 1},
193 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a',
194 'n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0},
196 {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','D','a','y',
197 'l','i','g','h','t',' ','T','i','m','e','\0'}, -120, 1},
199 {'W','.',' ','C','e','n','t','r','a','l',' ','A','f','r','i','c','a',' ',
200 'S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0},
202 {'E','.',' ','E','u','r','o','p','e',' ','S','t','a','n','d','a','r','d',
203 ' ','T','i','m','e','\0'}, -180, 1},
205 {'E','g','y','p','t',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
208 {'C','e','n','t','r','a','l',' ','A','f','r','i','c','a','n',' '
209 ,'T','i','m','e','\0'}, -120, 0},
211 {'S','o','u','t','h',' ','A','f','r','i','c','a',' ','S','t','a','n','d',
212 'a','r','d',' ','T','i','m','e','\0'}, -120, 0},
214 {'I','s','r','a','e','l',' ','S','t','a','n','d','a','r','d',' ','T','i',
215 'm','e','\0'}, -120, 0},
217 {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
218 'i','m','e','\0'}, -180, 0},
220 {'A','r','a','b','i','c',' ','S','t','a','n','d','a','r','d',' ','T','i',
221 'm','e','\0'}, -240, 1},
223 {'A','r','a','b',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
226 {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
227 'i','m','e','\0'}, -240, 1},
229 {'E','.',' ','A','f','r','i','c','a',' ','S','t','a','n','d','a','r','d',
230 ' ','T','i','m','e','\0'}, -180, 0},
232 {'I','r','a','n',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
235 {'A','r','a','b','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
236 'i','m','e','\0'}, -240, 0},
238 {'C','a','u','c','a','s','u','s',' ','S','t','a','n','d','a','r','d',' ',
239 'T','i','m','e','\0'}, -300, 1},
241 {'A','f','g','h','a','n','i','s','t','a','n',' ','S','t','a','n','d','a',
242 'r','d',' ','T','i','m','e','\0'}, -270, 0},
244 {'S','a','m','a','r','a',' ','S','t','a','n','d','a','r','d',' ','T','i',
245 'm','e','\0'}, -270, 1},
247 {'E','k','a','t','e','r','i','n','b','u','r','g',' ','S','t','a','n','d',
248 'a','r','d',' ','T','i','m','e','\0'}, -360, 1},
250 {'W','e','s','t',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',
251 ' ','T','i','m','e','\0'}, -300, 0},
253 {'I','n','d','i','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
256 {'N','e','p','a','l',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
259 {'N','.',' ','C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t',
260 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -420, 1},
262 {'C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t','a','n','d',
263 'a','r','d',' ','T','i','m','e','\0'}, -360, 0},
265 {'S','r','i',' ','L','a','n','k','a',' ','S','t','a','n','d','a','r','d',
266 ' ','T','i','m','e','\0'}, -360, 0},
268 {'M','y','a','n','m','a','r',' ','S','t','a','n','d','a','r','d',' ','T',
269 'i','m','e','\0'}, -390, 0},
271 {'S','E',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',' ','T',
272 'i','m','e','\0'}, -420, 0},
274 {'N','o','r','t','h',' ','A','s','i','a',' ','S','t','a','n','d','a','r',
275 'd',' ','T','i','m','e','\0'}, -480, 1},
277 {'C','h','i','n','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
280 {'N','o','r','t','h',' ','A','s','i','a',' ','E','a','s','t',' ','S','t',
281 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -540, 1},
283 {'M','a','l','a','y',' ','P','e','n','i','n','s','u','l','a',' ','S','t',
284 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -480, 0},
286 {'W','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
287 'a','r','d',' ','T','i','m','e','\0'}, -480, 0},
289 {'T','o','k','y','o',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
292 {'K','o','r','e','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
295 {'Y','a','k','u','t','s','k',' ','S','t','a','n','d','a','r','d',' ','T',
296 'i','m','e','\0'}, -600, 1},
298 {'C','e','n','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a',
299 'n','d','a','r','d',' ','T','i','m','e','\0'}, -570, 0},
301 {'C','e','n','.',' ','A','u','s','t','r','a','l','i','a',' ','D','a','y',
302 'l','i','g','h','t',' ','T','i','m','e','\0'}, -630, 1},
304 {'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
305 'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
307 {'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
308 'a','r','d',' ','T','i','m','e','\0'}, -660, 1},
310 {'W','e','s','t',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d',
311 'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
313 {'V','l','a','d','i','v','o','s','t','o','k',' ','S','t','a','n','d','a',
314 'r','d',' ','T','i','m','e','\0'}, -660, 1},
316 {'C','e','n','t','r','a','l',' ','P','a','c','i','f','i','c',' ','S','t',
317 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -720, 1},
319 {'N','e','w',' ','Z','e','a','l','a','n','d',' ','S','t','a','n','d','a',
320 'r','d',' ','T','i','m','e','\0'}, -720, 0},
322 {'N','e','w',' ','Z','e','a','l','a','n','d',' ','D','a','y','l','i','g',
323 'h','t',' ','T','i','m','e','\0'}, -780, 1},
325 {'F','i','j','i',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
328 {'T','o','n','g','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
331 {'N','o','v','o','s','i','b','i','r','s','k',' ','S','t','a','n','d','a',
332 'r','d',' ','T','i','m','e','\0'}, -360, 1},
334 {'A','n','a','d','y','r',' ','S','t','a','n','d','a','r','d',' ','T','i',
335 'm','e','\0'}, -720, 1},
337 {'H','o','n','g',' ','K','o','n','g',' ','S','t','a','n','d','a','r','d',
338 ' ','T','i','m','e','\0'}, -480, 0},
340 {'U','r','u','g','u','a','y','a','n',' ','T','i','m','e','\0'}, 180, 0},
342 {'M','a','l','a','y','s','i','a','n',' ','T','i','m','e','\0'}, -480, 0},
344 {'P','h','i','l','i','p','p','i','n','e',' ','T','i','m','e','\0'}, -480, 0},
346 {'N','o','v','o','s','i','b','i','r','s','k',' ','S','u','m','m','e','r',
347 ' ','T','i','m','e','\0'}, -480, 1}
350 #define TICKSPERSEC 10000000
351 #define TICKSPERMSEC 10000
352 #define SECSPERDAY 86400
353 #define SECSPERHOUR 3600
354 #define SECSPERMIN 60
355 #define MINSPERHOUR 60
356 #define HOURSPERDAY 24
357 #define EPOCHWEEKDAY 1 /* Jan 1, 1601 was Monday */
358 #define DAYSPERWEEK 7
359 #define EPOCHYEAR 1601
360 #define DAYSPERNORMALYEAR 365
361 #define DAYSPERLEAPYEAR 366
362 #define MONSPERYEAR 12
363 #define DAYSPERQUADRICENTENNIUM (365 * 400 + 97)
364 #define DAYSPERNORMALCENTURY (365 * 100 + 24)
365 #define DAYSPERNORMALQUADRENNIUM (365 * 4 + 1)
367 /* 1601 to 1970 is 369 years plus 89 leap days */
368 #define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
369 #define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC)
370 /* 1601 to 1980 is 379 years plus 91 leap days */
371 #define SECS_1601_TO_1980 ((379 * 365 + 91) * (ULONGLONG)SECSPERDAY)
372 #define TICKS_1601_TO_1980 (SECS_1601_TO_1980 * TICKSPERSEC)
373 /* max ticks that can be represented as Unix time */
374 #define TICKS_1601_TO_UNIX_MAX ((SECS_1601_TO_1970 + INT_MAX) * TICKSPERSEC)
377 static const int MonthLengths
[2][MONSPERYEAR
] =
379 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
380 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
383 static inline int IsLeapYear(int Year
)
385 return Year
% 4 == 0 && (Year
% 100 != 0 || Year
% 400 == 0) ? 1 : 0;
388 /***********************************************************************
389 * NTDLL_get_server_timeout
391 * Convert a NTDLL timeout into a timeval struct to send to the server.
393 void NTDLL_get_server_timeout( abs_time_t
*when
, const LARGE_INTEGER
*timeout
)
397 if (!timeout
) /* infinite timeout */
399 when
->sec
= when
->usec
= 0;
401 else if (timeout
->QuadPart
<= 0) /* relative timeout */
405 if (-timeout
->QuadPart
> (LONGLONG
)INT_MAX
* TICKSPERSEC
)
406 when
->sec
= when
->usec
= INT_MAX
;
409 ULONG sec
= RtlEnlargedUnsignedDivide( -timeout
->QuadPart
, TICKSPERSEC
, &remainder
);
410 gettimeofday( &tv
, 0 );
411 when
->sec
= tv
.tv_sec
+ sec
;
412 if ((when
->usec
= tv
.tv_usec
+ (remainder
/ 10)) >= 1000000)
414 when
->usec
-= 1000000;
417 if (when
->sec
< tv
.tv_sec
) /* overflow */
418 when
->sec
= when
->usec
= INT_MAX
;
421 else /* absolute time */
423 if (timeout
->QuadPart
< TICKS_1601_TO_1970
)
424 when
->sec
= when
->usec
= 0;
425 else if (timeout
->QuadPart
> TICKS_1601_TO_UNIX_MAX
)
426 when
->sec
= when
->usec
= INT_MAX
;
429 when
->sec
= RtlEnlargedUnsignedDivide( timeout
->QuadPart
- TICKS_1601_TO_1970
,
430 TICKSPERSEC
, &remainder
);
431 when
->usec
= remainder
/ 10;
437 /***********************************************************************
438 * NTDLL_from_server_timeout
440 * Convert a timeval struct from the server into an NTDLL timeout.
442 void NTDLL_from_server_timeout( LARGE_INTEGER
*timeout
, const abs_time_t
*when
)
444 timeout
->QuadPart
= when
->sec
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
445 timeout
->QuadPart
+= when
->usec
* 10;
449 /******************************************************************************
450 * RtlTimeToTimeFields [NTDLL.@]
452 * Convert a time into a TIME_FIELDS structure.
455 * liTime [I] Time to convert.
456 * TimeFields [O] Destination for the converted time.
461 VOID WINAPI
RtlTimeToTimeFields(
462 const LARGE_INTEGER
*liTime
,
463 PTIME_FIELDS TimeFields
)
466 long int cleaps
, years
, yearday
, months
;
470 /* Extract millisecond from time and convert time into seconds */
471 TimeFields
->Milliseconds
=
472 (CSHORT
) (( liTime
->QuadPart
% TICKSPERSEC
) / TICKSPERMSEC
);
473 Time
= liTime
->QuadPart
/ TICKSPERSEC
;
475 /* The native version of RtlTimeToTimeFields does not take leap seconds
478 /* Split the time into days and seconds within the day */
479 Days
= Time
/ SECSPERDAY
;
480 SecondsInDay
= Time
% SECSPERDAY
;
482 /* compute time of day */
483 TimeFields
->Hour
= (CSHORT
) (SecondsInDay
/ SECSPERHOUR
);
484 SecondsInDay
= SecondsInDay
% SECSPERHOUR
;
485 TimeFields
->Minute
= (CSHORT
) (SecondsInDay
/ SECSPERMIN
);
486 TimeFields
->Second
= (CSHORT
) (SecondsInDay
% SECSPERMIN
);
488 /* compute day of week */
489 TimeFields
->Weekday
= (CSHORT
) ((EPOCHWEEKDAY
+ Days
) % DAYSPERWEEK
);
491 /* compute year, month and day of month. */
492 cleaps
=( 3 * ((4 * Days
+ 1227) / DAYSPERQUADRICENTENNIUM
) + 3 ) / 4;
493 Days
+= 28188 + cleaps
;
494 years
= (20 * Days
- 2442) / (5 * DAYSPERNORMALQUADRENNIUM
);
495 yearday
= Days
- (years
* DAYSPERNORMALQUADRENNIUM
)/4;
496 months
= (64 * yearday
) / 1959;
497 /* the result is based on a year starting on March.
498 * To convert take 12 from Januari and Februari and
499 * increase the year by one. */
501 TimeFields
->Month
= months
- 1;
502 TimeFields
->Year
= years
+ 1524;
504 TimeFields
->Month
= months
- 13;
505 TimeFields
->Year
= years
+ 1525;
507 /* calculation of day of month is based on the wonderful
508 * sequence of INT( n * 30.6): it reproduces the
509 * 31-30-31-30-31-31 month lengths exactly for small n's */
510 TimeFields
->Day
= yearday
- (1959 * months
) / 64 ;
514 /******************************************************************************
515 * RtlTimeFieldsToTime [NTDLL.@]
517 * Convert a TIME_FIELDS structure into a time.
520 * ftTimeFields [I] TIME_FIELDS structure to convert.
521 * Time [O] Destination for the converted time.
527 BOOLEAN WINAPI
RtlTimeFieldsToTime(
528 PTIME_FIELDS tfTimeFields
,
531 int month
, year
, cleaps
, day
;
533 /* FIXME: normalize the TIME_FIELDS structure here */
534 /* No, native just returns 0 (error) if the fields are not */
535 if( tfTimeFields
->Milliseconds
< 0 || tfTimeFields
->Milliseconds
> 999 ||
536 tfTimeFields
->Second
< 0 || tfTimeFields
->Second
> 59 ||
537 tfTimeFields
->Minute
< 0 || tfTimeFields
->Minute
> 59 ||
538 tfTimeFields
->Hour
< 0 || tfTimeFields
->Hour
> 23 ||
539 tfTimeFields
->Month
< 1 || tfTimeFields
->Month
> 12 ||
540 tfTimeFields
->Day
< 1 ||
541 tfTimeFields
->Day
> MonthLengths
542 [ tfTimeFields
->Month
==2 || IsLeapYear(tfTimeFields
->Year
)]
543 [ tfTimeFields
->Month
- 1] ||
544 tfTimeFields
->Year
< 1601 )
547 /* now calculate a day count from the date
548 * First start counting years from March. This way the leap days
549 * are added at the end of the year, not somewhere in the middle.
550 * Formula's become so much less complicate that way.
551 * To convert: add 12 to the month numbers of Jan and Feb, and
552 * take 1 from the year */
553 if(tfTimeFields
->Month
< 3) {
554 month
= tfTimeFields
->Month
+ 13;
555 year
= tfTimeFields
->Year
- 1;
557 month
= tfTimeFields
->Month
+ 1;
558 year
= tfTimeFields
->Year
;
560 cleaps
= (3 * (year
/ 100) + 3) / 4; /* nr of "century leap years"*/
561 day
= (36525 * year
) / 100 - cleaps
+ /* year * dayperyr, corrected */
562 (1959 * month
) / 64 + /* months * daypermonth */
563 tfTimeFields
->Day
- /* day of the month */
564 584817 ; /* zero that on 1601-01-01 */
567 Time
->QuadPart
= (((((LONGLONG
) day
* HOURSPERDAY
+
568 tfTimeFields
->Hour
) * MINSPERHOUR
+
569 tfTimeFields
->Minute
) * SECSPERMIN
+
570 tfTimeFields
->Second
) * 1000 +
571 tfTimeFields
->Milliseconds
) * TICKSPERMSEC
;
576 /***********************************************************************
577 * TIME_GetBias [internal]
579 * Helper function calculates delta local time from UTC.
582 * utc [I] The current utc time.
583 * pdaylight [I] Local daylight.
586 * The bias for the current timezone.
588 static int TIME_GetBias(time_t utc
, int *pdaylight
)
591 static time_t last_utc
;
592 static int last_bias
;
593 static int last_daylight
;
596 RtlEnterCriticalSection( &TIME_GetBias_section
);
599 *pdaylight
= last_daylight
;
603 ptm
= localtime(&utc
);
604 *pdaylight
= last_daylight
=
605 ptm
->tm_isdst
; /* daylight for local timezone */
607 ptm
->tm_isdst
= *pdaylight
; /* use local daylight, not that of Greenwich */
609 ret
= last_bias
= (int)(utc
-mktime(ptm
));
611 RtlLeaveCriticalSection( &TIME_GetBias_section
);
615 /******************************************************************************
616 * RtlLocalTimeToSystemTime [NTDLL.@]
618 * Convert a local time into system time.
621 * LocalTime [I] Local time to convert.
622 * SystemTime [O] Destination for the converted time.
625 * Success: STATUS_SUCCESS.
626 * Failure: An NTSTATUS error code indicating the problem.
628 NTSTATUS WINAPI
RtlLocalTimeToSystemTime( const LARGE_INTEGER
*LocalTime
,
629 PLARGE_INTEGER SystemTime
)
634 TRACE("(%p, %p)\n", LocalTime
, SystemTime
);
637 bias
= TIME_GetBias(gmt
, &daylight
);
639 SystemTime
->QuadPart
= LocalTime
->QuadPart
- bias
* (LONGLONG
)TICKSPERSEC
;
640 return STATUS_SUCCESS
;
643 /******************************************************************************
644 * RtlSystemTimeToLocalTime [NTDLL.@]
646 * Convert a system time into a local time.
649 * SystemTime [I] System time to convert.
650 * LocalTime [O] Destination for the converted time.
653 * Success: STATUS_SUCCESS.
654 * Failure: An NTSTATUS error code indicating the problem.
656 NTSTATUS WINAPI
RtlSystemTimeToLocalTime( const LARGE_INTEGER
*SystemTime
,
657 PLARGE_INTEGER LocalTime
)
662 TRACE("(%p, %p)\n", SystemTime
, LocalTime
);
665 bias
= TIME_GetBias(gmt
, &daylight
);
667 LocalTime
->QuadPart
= SystemTime
->QuadPart
+ bias
* (LONGLONG
)TICKSPERSEC
;
668 return STATUS_SUCCESS
;
671 /******************************************************************************
672 * RtlTimeToSecondsSince1970 [NTDLL.@]
674 * Convert a time into a count of seconds since 1970.
677 * Time [I] Time to convert.
678 * Seconds [O] Destination for the converted time.
682 * Failure: FALSE, if the resulting value will not fit in a DWORD.
684 BOOLEAN WINAPI
RtlTimeToSecondsSince1970( const LARGE_INTEGER
*Time
, LPDWORD Seconds
)
686 ULONGLONG tmp
= ((ULONGLONG
)Time
->u
.HighPart
<< 32) | Time
->u
.LowPart
;
687 tmp
= RtlLargeIntegerDivide( tmp
, TICKSPERSEC
, NULL
);
688 tmp
-= SECS_1601_TO_1970
;
689 if (tmp
> 0xffffffff) return FALSE
;
690 *Seconds
= (DWORD
)tmp
;
694 /******************************************************************************
695 * RtlTimeToSecondsSince1980 [NTDLL.@]
697 * Convert a time into a count of seconds since 1980.
700 * Time [I] Time to convert.
701 * Seconds [O] Destination for the converted time.
705 * Failure: FALSE, if the resulting value will not fit in a DWORD.
707 BOOLEAN WINAPI
RtlTimeToSecondsSince1980( const LARGE_INTEGER
*Time
, LPDWORD Seconds
)
709 ULONGLONG tmp
= ((ULONGLONG
)Time
->u
.HighPart
<< 32) | Time
->u
.LowPart
;
710 tmp
= RtlLargeIntegerDivide( tmp
, TICKSPERSEC
, NULL
);
711 tmp
-= SECS_1601_TO_1980
;
712 if (tmp
> 0xffffffff) return FALSE
;
713 *Seconds
= (DWORD
)tmp
;
717 /******************************************************************************
718 * RtlSecondsSince1970ToTime [NTDLL.@]
720 * Convert a count of seconds since 1970 to a time.
723 * Seconds [I] Time to convert.
724 * Time [O] Destination for the converted time.
729 void WINAPI
RtlSecondsSince1970ToTime( DWORD Seconds
, LARGE_INTEGER
*Time
)
731 ULONGLONG secs
= Seconds
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
732 Time
->u
.LowPart
= (DWORD
)secs
;
733 Time
->u
.HighPart
= (DWORD
)(secs
>> 32);
736 /******************************************************************************
737 * RtlSecondsSince1980ToTime [NTDLL.@]
739 * Convert a count of seconds since 1980 to a time.
742 * Seconds [I] Time to convert.
743 * Time [O] Destination for the converted time.
748 void WINAPI
RtlSecondsSince1980ToTime( DWORD Seconds
, LARGE_INTEGER
*Time
)
750 ULONGLONG secs
= Seconds
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1980
;
751 Time
->u
.LowPart
= (DWORD
)secs
;
752 Time
->u
.HighPart
= (DWORD
)(secs
>> 32);
755 /******************************************************************************
756 * RtlTimeToElapsedTimeFields [NTDLL.@]
758 * Convert a time to a count of elapsed seconds.
761 * Time [I] Time to convert.
762 * TimeFields [O] Destination for the converted time.
767 void WINAPI
RtlTimeToElapsedTimeFields( const LARGE_INTEGER
*Time
, PTIME_FIELDS TimeFields
)
772 time
= RtlExtendedLargeIntegerDivide( Time
->QuadPart
, TICKSPERSEC
, &rem
);
773 TimeFields
->Milliseconds
= rem
/ TICKSPERMSEC
;
775 /* time is now in seconds */
776 TimeFields
->Year
= 0;
777 TimeFields
->Month
= 0;
778 TimeFields
->Day
= RtlExtendedLargeIntegerDivide( time
, SECSPERDAY
, &rem
);
780 /* rem is now the remaining seconds in the last day */
781 TimeFields
->Second
= rem
% 60;
783 TimeFields
->Minute
= rem
% 60;
784 TimeFields
->Hour
= rem
/ 60;
787 /***********************************************************************
788 * NtQuerySystemTime [NTDLL.@]
789 * ZwQuerySystemTime [NTDLL.@]
791 * Get the current system time.
794 * Time [O] Destination for the current system time.
797 * Success: STATUS_SUCCESS.
798 * Failure: An NTSTATUS error code indicating the problem.
800 NTSTATUS WINAPI
NtQuerySystemTime( PLARGE_INTEGER Time
)
804 gettimeofday( &now
, 0 );
805 Time
->QuadPart
= now
.tv_sec
* (ULONGLONG
)TICKSPERSEC
+ TICKS_1601_TO_1970
;
806 Time
->QuadPart
+= now
.tv_usec
* 10;
807 return STATUS_SUCCESS
;
810 /******************************************************************************
811 * NtQueryPerformanceCounter [NTDLL.@]
813 * Note: Windows uses a timer clocked at a multiple of 1193182 Hz. There is a
814 * good number of applications that crash when the returned frequency is either
815 * lower or higher then what Windows gives. Also too high counter values are
816 * reported to give problems.
818 NTSTATUS WINAPI
NtQueryPerformanceCounter( PLARGE_INTEGER Counter
, PLARGE_INTEGER Frequency
)
822 if (!Counter
) return STATUS_ACCESS_VIOLATION
;
823 gettimeofday( &now
, 0 );
824 /* convert a counter that increments at a rate of 1 MHz
825 * to one of 1.193182 MHz, with some care for arithmetic
826 * overflow ( will not overflow for 5000 years ) and
827 * good accuracy ( 105/88 = 1.19318182) */
828 Counter
->QuadPart
= (((now
.tv_sec
- server_start_time
) * (ULONGLONG
)1000000 + now
.tv_usec
) * 105) / 88;
829 if (Frequency
) Frequency
->QuadPart
= 1193182;
830 return STATUS_SUCCESS
;
833 /***********************************************************************
834 * TIME_GetTZAsStr [internal]
836 * Helper function that returns the given timezone as a string.
839 * utc [I] The current utc time.
840 * bias [I] The bias of the current timezone.
847 * This could be done with a hash table instead of merely iterating through a
848 * table, however with the small amount of entries (60 or so) I didn't think
851 static const WCHAR
* TIME_GetTZAsStr (time_t utc
, int bias
, int dst
)
854 struct tm
*ptm
= localtime(&utc
);
857 if (!strftime (psTZName
, 7, "%Z", ptm
))
860 for (i
=0; i
<(sizeof(TZ_INFO
) / sizeof(struct tagTZ_INFO
)); i
++)
862 if ( strcmp(TZ_INFO
[i
].psTZFromUnix
, psTZName
) == 0 &&
863 TZ_INFO
[i
].bias
== bias
&&
864 TZ_INFO
[i
].dst
== dst
866 return TZ_INFO
[i
].psTZWindows
;
868 FIXME("Can't match system time zone name \"%s\", bias=%d and dst=%d "
869 "to an entry in TZ_INFO. Please add appropriate entry to "
870 "TZ_INFO and submit as patch to wine-patches\n",psTZName
,bias
,dst
);
874 /*** TIME_GetTimeZoneInfoFromReg: helper for GetTimeZoneInformation ***/
877 static int TIME_GetTimeZoneInfoFromReg(RTL_TIME_ZONE_INFORMATION
*tzinfo
)
880 KEY_VALUE_PARTIAL_INFORMATION
* KpInfo
=
881 (KEY_VALUE_PARTIAL_INFORMATION
*) buf
;
884 OBJECT_ATTRIBUTES attr
;
885 UNICODE_STRING nameW
;
887 attr
.Length
= sizeof(attr
);
888 attr
.RootDirectory
= 0;
889 attr
.ObjectName
= &nameW
;
891 attr
.SecurityDescriptor
= NULL
;
892 attr
.SecurityQualityOfService
= NULL
;
893 RtlInitUnicodeString( &nameW
, TZInformationKeyW
);
894 if (!NtOpenKey( &hkey
, KEY_ALL_ACCESS
, &attr
)) {
896 #define GTZIFR_N( valkey, tofield) \
897 RtlInitUnicodeString( &nameW, valkey );\
898 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\
899 sizeof(buf), &size )) { \
900 if( size >= (sizeof((tofield)) + \
901 offsetof(KEY_VALUE_PARTIAL_INFORMATION,Data))) { \
903 KpInfo->Data, sizeof(tofield)); \
906 #define GTZIFR_S( valkey, tofield) \
907 RtlInitUnicodeString( &nameW, valkey );\
908 if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\
909 sizeof(buf), &size )) { \
910 size_t len = (strlenW( (WCHAR*)KpInfo->Data ) + 1) * sizeof(WCHAR); \
911 if (len > sizeof(tofield)) len = sizeof(tofield); \
912 memcpy( tofield, KpInfo->Data, len ); \
913 tofield[(len/sizeof(WCHAR))-1] = 0; \
916 GTZIFR_N( TZStandardStartW
, tzinfo
->StandardDate
)
917 GTZIFR_N( TZDaylightStartW
, tzinfo
->DaylightDate
)
918 GTZIFR_N( TZBiasW
, tzinfo
->Bias
)
919 GTZIFR_N( TZStandardBiasW
, tzinfo
->StandardBias
)
920 GTZIFR_N( TZDaylightBiasW
, tzinfo
->DaylightBias
)
921 GTZIFR_S( TZStandardNameW
, tzinfo
->StandardName
)
922 GTZIFR_S( TZDaylightNameW
, tzinfo
->DaylightName
)
932 /***********************************************************************
933 * RtlQueryTimeZoneInformation [NTDLL.@]
935 * Get information about the current timezone.
938 * tzinfo [O] Destination for the retrieved timezone info.
941 * Success: STATUS_SUCCESS.
942 * Failure: An NTSTATUS error code indicating the problem.
944 NTSTATUS WINAPI
RtlQueryTimeZoneInformation(RTL_TIME_ZONE_INFORMATION
*tzinfo
)
950 memset(tzinfo
, 0, sizeof(RTL_TIME_ZONE_INFORMATION
));
952 if( !TIME_GetTimeZoneInfoFromReg(tzinfo
)) {
955 bias
= TIME_GetBias(gmt
, &daylight
);
957 tzinfo
->Bias
= -bias
/ 60;
958 tzinfo
->StandardBias
= 0;
959 tzinfo
->DaylightBias
= -60;
960 tzinfo
->StandardName
[0]='\0';
961 tzinfo
->DaylightName
[0]='\0';
962 psTZ
= TIME_GetTZAsStr (gmt
, (-bias
/60), daylight
);
963 if (psTZ
) strcpyW( tzinfo
->StandardName
, psTZ
);
965 return STATUS_SUCCESS
;
968 /***********************************************************************
969 * RtlSetTimeZoneInformation [NTDLL.@]
971 * Set the current time zone information.
974 * tzinfo [I] Timezone information to set.
977 * Success: STATUS_SUCCESS.
978 * Failure: An NTSTATUS error code indicating the problem.
981 * Uses the obsolete unix timezone structure and tz_dsttime member.
983 NTSTATUS WINAPI
RtlSetTimeZoneInformation( const RTL_TIME_ZONE_INFORMATION
*tzinfo
)
985 #ifdef HAVE_SETTIMEOFDAY
988 tz
.tz_minuteswest
= tzinfo
->Bias
;
990 tz
.tz_dsttime
= DST_NONE
;
994 if(!settimeofday(NULL
, &tz
))
995 return STATUS_SUCCESS
;
997 return STATUS_PRIVILEGE_NOT_HELD
;
1000 /***********************************************************************
1001 * NtSetSystemTime [NTDLL.@]
1002 * ZwSetSystemTime [NTDLL.@]
1004 * Set the system time.
1007 * NewTime [I] The time to set.
1008 * OldTime [O] Optional destination for the previous system time.
1011 * Success: STATUS_SUCCESS.
1012 * Failure: An NTSTATUS error code indicating the problem.
1014 NTSTATUS WINAPI
NtSetSystemTime(const LARGE_INTEGER
*NewTime
, LARGE_INTEGER
*OldTime
)
1024 /* Return the old time if necessary */
1026 NtQuerySystemTime(OldTime
);
1028 RtlTimeToTimeFields(NewTime
, &tf
);
1030 /* call gettimeofday to get the current timezone */
1031 gettimeofday(&tv
, &tz
);
1033 /* get delta local time from utc */
1034 bias
= TIME_GetBias(oldsec
, &dst
);
1036 /* get the number of seconds */
1037 t
.tm_sec
= tf
.Second
;
1038 t
.tm_min
= tf
.Minute
;
1039 t
.tm_hour
= tf
.Hour
;
1041 t
.tm_mon
= tf
.Month
- 1;
1042 t
.tm_year
= tf
.Year
- 1900;
1045 /* correct for timezone and daylight */
1048 /* set the new time */
1050 tv
.tv_usec
= tf
.Milliseconds
* 1000;
1052 /* error and sanity check*/
1053 if(sec
== (time_t)-1 || abs((int)(sec
-oldsec
)) > SETTIME_MAX_ADJUST
) {
1056 #ifdef HAVE_SETTIMEOFDAY
1057 err
= settimeofday(&tv
, NULL
); /* 0 is OK, -1 is error */
1059 return STATUS_SUCCESS
;
1065 ERR("Cannot set time to %d/%d/%d %d:%d:%d Time adjustment %ld %s\n",
1066 tf
.Year
, tf
.Month
, tf
.Day
, tf
.Hour
, tf
.Minute
, tf
.Second
,
1068 err
== -1 ? "No Permission"
1069 : sec
== (time_t)-1 ? "" : "is too large." );
1072 return STATUS_INVALID_PARAMETER
;
1074 return STATUS_PRIVILEGE_NOT_HELD
;
1076 return STATUS_NOT_IMPLEMENTED
;