1/* Licensed to the Apache Software Foundation (ASF) under one or more 2 * contributor license agreements. See the NOTICE file distributed with 3 * this work for additional information regarding copyright ownership. 4 * The ASF licenses this file to You under the Apache License, Version 2.0 5 * (the "License"); you may not use this file except in compliance with 6 * the License. You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "apr_arch_atime.h" 18#include "apr_time.h" 19#include "apr_general.h" 20#include "apr_lib.h" 21#include "apr_portable.h" 22#if APR_HAVE_TIME_H 23#include <time.h> 24#endif 25#if APR_HAVE_ERRNO_H 26#include <errno.h> 27#endif 28#include <string.h> 29#include <winbase.h> 30#include "apr_arch_misc.h" 31 32/* Leap year is any year divisible by four, but not by 100 unless also 33 * divisible by 400 34 */ 35#define IsLeapYear(y) ((!(y % 4)) ? (((!(y % 400)) && (y % 100)) ? 1 : 0) : 0) 36 37static DWORD get_local_timezone(TIME_ZONE_INFORMATION **tzresult) 38{ 39 static TIME_ZONE_INFORMATION tz; 40 static DWORD result; 41 static int init = 0; 42 43 if (!init) { 44 result = GetTimeZoneInformation(&tz); 45 init = 1; 46 } 47 48 *tzresult = &tz; 49 return result; 50} 51 52static void SystemTimeToAprExpTime(apr_time_exp_t *xt, SYSTEMTIME *tm) 53{ 54 static const int dayoffset[12] = 55 {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334}; 56 57 /* Note; the caller is responsible for filling in detailed tm_usec, 58 * tm_gmtoff and tm_isdst data when applicable. 59 */ 60 xt->tm_usec = tm->wMilliseconds * 1000; 61 xt->tm_sec = tm->wSecond; 62 xt->tm_min = tm->wMinute; 63 xt->tm_hour = tm->wHour; 64 xt->tm_mday = tm->wDay; 65 xt->tm_mon = tm->wMonth - 1; 66 xt->tm_year = tm->wYear - 1900; 67 xt->tm_wday = tm->wDayOfWeek; 68 xt->tm_yday = dayoffset[xt->tm_mon] + (tm->wDay - 1); 69 xt->tm_isdst = 0; 70 xt->tm_gmtoff = 0; 71 72 /* If this is a leap year, and we're past the 28th of Feb. (the 73 * 58th day after Jan. 1), we'll increment our tm_yday by one. 74 */ 75 if (IsLeapYear(tm->wYear) && (xt->tm_yday > 58)) 76 xt->tm_yday++; 77} 78 79APR_DECLARE(apr_status_t) apr_time_ansi_put(apr_time_t *result, 80 time_t input) 81{ 82 *result = (apr_time_t) input * APR_USEC_PER_SEC; 83 return APR_SUCCESS; 84} 85 86/* Return micro-seconds since the Unix epoch (jan. 1, 1970) UTC */ 87APR_DECLARE(apr_time_t) apr_time_now(void) 88{ 89 LONGLONG aprtime = 0; 90 FILETIME time; 91#ifndef _WIN32_WCE 92 GetSystemTimeAsFileTime(&time); 93#else 94 SYSTEMTIME st; 95 GetSystemTime(&st); 96 SystemTimeToFileTime(&st, &time); 97#endif 98 FileTimeToAprTime(&aprtime, &time); 99 return aprtime; 100} 101 102APR_DECLARE(apr_status_t) apr_time_exp_gmt(apr_time_exp_t *result, 103 apr_time_t input) 104{ 105 FILETIME ft; 106 SYSTEMTIME st; 107 AprTimeToFileTime(&ft, input); 108 FileTimeToSystemTime(&ft, &st); 109 /* The Platform SDK documents that SYSTEMTIME/FILETIME are 110 * generally UTC, so no timezone info needed 111 */ 112 SystemTimeToAprExpTime(result, &st); 113 result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC); 114 return APR_SUCCESS; 115} 116 117APR_DECLARE(apr_status_t) apr_time_exp_tz(apr_time_exp_t *result, 118 apr_time_t input, 119 apr_int32_t offs) 120{ 121 FILETIME ft; 122 SYSTEMTIME st; 123 AprTimeToFileTime(&ft, input + (offs * APR_USEC_PER_SEC)); 124 FileTimeToSystemTime(&ft, &st); 125 /* The Platform SDK documents that SYSTEMTIME/FILETIME are 126 * generally UTC, so we will simply note the offs used. 127 */ 128 SystemTimeToAprExpTime(result, &st); 129 result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC); 130 result->tm_gmtoff = offs; 131 return APR_SUCCESS; 132} 133 134APR_DECLARE(apr_status_t) apr_time_exp_lt(apr_time_exp_t *result, 135 apr_time_t input) 136{ 137 SYSTEMTIME st; 138 FILETIME ft, localft; 139 140 AprTimeToFileTime(&ft, input); 141 142#if APR_HAS_UNICODE_FS && !defined(_WIN32_WCE) 143 IF_WIN_OS_IS_UNICODE 144 { 145 TIME_ZONE_INFORMATION *tz; 146 SYSTEMTIME localst; 147 apr_time_t localtime; 148 149 get_local_timezone(&tz); 150 151 FileTimeToSystemTime(&ft, &st); 152 153 /* The Platform SDK documents that SYSTEMTIME/FILETIME are 154 * generally UTC. We use SystemTimeToTzSpecificLocalTime 155 * because FileTimeToLocalFileFime is documented that the 156 * resulting time local file time would have DST relative 157 * to the *present* date, not the date converted. 158 */ 159 SystemTimeToTzSpecificLocalTime(tz, &st, &localst); 160 SystemTimeToAprExpTime(result, &localst); 161 result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC); 162 163 164 /* Recover the resulting time as an apr time and use the 165 * delta for gmtoff in seconds (and ignore msec rounding) 166 */ 167 SystemTimeToFileTime(&localst, &localft); 168 FileTimeToAprTime(&localtime, &localft); 169 result->tm_gmtoff = (int)apr_time_sec(localtime) 170 - (int)apr_time_sec(input); 171 172 /* To compute the dst flag, we compare the expected 173 * local (standard) timezone bias to the delta. 174 * [Note, in war time or double daylight time the 175 * resulting tm_isdst is, desireably, 2 hours] 176 */ 177 result->tm_isdst = (result->tm_gmtoff / 3600) 178 - (-(tz->Bias + tz->StandardBias) / 60); 179 } 180#endif 181#if APR_HAS_ANSI_FS || defined(_WIN32_WCE) 182 ELSE_WIN_OS_IS_ANSI 183 { 184 TIME_ZONE_INFORMATION tz; 185 /* XXX: This code is simply *wrong*. The time converted will always 186 * map to the *now current* status of daylight savings time. 187 */ 188 189 FileTimeToLocalFileTime(&ft, &localft); 190 FileTimeToSystemTime(&localft, &st); 191 SystemTimeToAprExpTime(result, &st); 192 result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC); 193 194 switch (GetTimeZoneInformation(&tz)) { 195 case TIME_ZONE_ID_UNKNOWN: 196 result->tm_isdst = 0; 197 /* Bias = UTC - local time in minutes 198 * tm_gmtoff is seconds east of UTC 199 */ 200 result->tm_gmtoff = tz.Bias * -60; 201 break; 202 case TIME_ZONE_ID_STANDARD: 203 result->tm_isdst = 0; 204 result->tm_gmtoff = (tz.Bias + tz.StandardBias) * -60; 205 break; 206 case TIME_ZONE_ID_DAYLIGHT: 207 result->tm_isdst = 1; 208 result->tm_gmtoff = (tz.Bias + tz.DaylightBias) * -60; 209 break; 210 default: 211 /* noop */; 212 } 213 } 214#endif 215 216 return APR_SUCCESS; 217} 218 219APR_DECLARE(apr_status_t) apr_time_exp_get(apr_time_t *t, 220 apr_time_exp_t *xt) 221{ 222 apr_time_t year = xt->tm_year; 223 apr_time_t days; 224 static const int dayoffset[12] = 225 {306, 337, 0, 31, 61, 92, 122, 153, 184, 214, 245, 275}; 226 227 /* shift new year to 1st March in order to make leap year calc easy */ 228 229 if (xt->tm_mon < 2) 230 year--; 231 232 /* Find number of days since 1st March 1900 (in the Gregorian calendar). */ 233 234 days = year * 365 + year / 4 - year / 100 + (year / 100 + 3) / 4; 235 days += dayoffset[xt->tm_mon] + xt->tm_mday - 1; 236 days -= 25508; /* 1 jan 1970 is 25508 days since 1 mar 1900 */ 237 238 days = ((days * 24 + xt->tm_hour) * 60 + xt->tm_min) * 60 + xt->tm_sec; 239 240 if (days < 0) { 241 return APR_EBADDATE; 242 } 243 *t = days * APR_USEC_PER_SEC + xt->tm_usec; 244 return APR_SUCCESS; 245} 246 247APR_DECLARE(apr_status_t) apr_time_exp_gmt_get(apr_time_t *t, 248 apr_time_exp_t *xt) 249{ 250 apr_status_t status = apr_time_exp_get(t, xt); 251 if (status == APR_SUCCESS) 252 *t -= (apr_time_t) xt->tm_gmtoff * APR_USEC_PER_SEC; 253 return status; 254} 255 256APR_DECLARE(apr_status_t) apr_os_imp_time_get(apr_os_imp_time_t **ostime, 257 apr_time_t *aprtime) 258{ 259 /* TODO: Consider not passing in pointer to apr_time_t (e.g., call by value) */ 260 AprTimeToFileTime(*ostime, *aprtime); 261 return APR_SUCCESS; 262} 263 264APR_DECLARE(apr_status_t) apr_os_exp_time_get(apr_os_exp_time_t **ostime, 265 apr_time_exp_t *aprexptime) 266{ 267 (*ostime)->wYear = aprexptime->tm_year + 1900; 268 (*ostime)->wMonth = aprexptime->tm_mon + 1; 269 (*ostime)->wDayOfWeek = aprexptime->tm_wday; 270 (*ostime)->wDay = aprexptime->tm_mday; 271 (*ostime)->wHour = aprexptime->tm_hour; 272 (*ostime)->wMinute = aprexptime->tm_min; 273 (*ostime)->wSecond = aprexptime->tm_sec; 274 (*ostime)->wMilliseconds = aprexptime->tm_usec / 1000; 275 return APR_SUCCESS; 276} 277 278APR_DECLARE(apr_status_t) apr_os_imp_time_put(apr_time_t *aprtime, 279 apr_os_imp_time_t **ostime, 280 apr_pool_t *cont) 281{ 282 /* XXX: sanity failure, what is file time, gmt or local ? 283 */ 284 FileTimeToAprTime(aprtime, *ostime); 285 return APR_SUCCESS; 286} 287 288APR_DECLARE(apr_status_t) apr_os_exp_time_put(apr_time_exp_t *aprtime, 289 apr_os_exp_time_t **ostime, 290 apr_pool_t *cont) 291{ 292 /* The Platform SDK documents that SYSTEMTIME/FILETIME are 293 * generally UTC, so no timezone info needed 294 */ 295 SystemTimeToAprExpTime(aprtime, *ostime); 296 return APR_SUCCESS; 297} 298 299APR_DECLARE(void) apr_sleep(apr_interval_time_t t) 300{ 301 /* One of the few sane situations for a cast, Sleep 302 * is in ms, not us, and passed as a DWORD value 303 */ 304 Sleep((DWORD)(t / 1000)); 305} 306 307#if defined(_WIN32_WCE) 308/* A noop on WinCE, like Unix implementation */ 309APR_DECLARE(void) apr_time_clock_hires(apr_pool_t *p) 310{ 311 return; 312} 313#else 314static apr_status_t clock_restore(void *unsetres) 315{ 316 ULONG newRes; 317 SetTimerResolution((ULONG)(apr_ssize_t)unsetres, FALSE, &newRes); 318 return APR_SUCCESS; 319} 320 321APR_DECLARE(void) apr_time_clock_hires(apr_pool_t *p) 322{ 323 ULONG newRes; 324 /* Timer resolution is stated in 100ns units. Note that TRUE requests the 325 * new clock resolution, FALSE above releases the request. 326 */ 327 if (SetTimerResolution(10000, TRUE, &newRes) == 0 /* STATUS_SUCCESS */) { 328 /* register the cleanup... */ 329 apr_pool_cleanup_register(p, (void*)10000, clock_restore, 330 apr_pool_cleanup_null); 331 } 332} 333#endif 334