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DEFINITIONS
This source file includes following definitions.
- get_local_timezone
- SystemTimeToAprExpTime
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- APR_DECLARE
- clock_restore
- APR_DECLARE
/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apr_arch_atime.h"
#include "apr_time.h"
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_portable.h"
#if APR_HAVE_TIME_H
#include <time.h>
#endif
#if APR_HAVE_ERRNO_H
#include <errno.h>
#endif
#include <string.h>
#include <winbase.h>
#include "apr_arch_misc.h"
/* Leap year is any year divisible by four, but not by 100 unless also
* divisible by 400
*/
#define IsLeapYear(y) ((!(y % 4)) ? (((!(y % 400)) && (y % 100)) ? 1 : 0) : 0)
static DWORD get_local_timezone(TIME_ZONE_INFORMATION **tzresult)
{
static TIME_ZONE_INFORMATION tz;
static DWORD result;
static int init = 0;
if (!init) {
result = GetTimeZoneInformation(&tz);
init = 1;
}
*tzresult = &tz;
return result;
}
static void SystemTimeToAprExpTime(apr_time_exp_t *xt, SYSTEMTIME *tm)
{
static const int dayoffset[12] =
{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
/* Note; the caller is responsible for filling in detailed tm_usec,
* tm_gmtoff and tm_isdst data when applicable.
*/
xt->tm_usec = tm->wMilliseconds * 1000;
xt->tm_sec = tm->wSecond;
xt->tm_min = tm->wMinute;
xt->tm_hour = tm->wHour;
xt->tm_mday = tm->wDay;
xt->tm_mon = tm->wMonth - 1;
xt->tm_year = tm->wYear - 1900;
xt->tm_wday = tm->wDayOfWeek;
xt->tm_yday = dayoffset[xt->tm_mon] + (tm->wDay - 1);
xt->tm_isdst = 0;
xt->tm_gmtoff = 0;
/* If this is a leap year, and we're past the 28th of Feb. (the
* 58th day after Jan. 1), we'll increment our tm_yday by one.
*/
if (IsLeapYear(tm->wYear) && (xt->tm_yday > 58))
xt->tm_yday++;
}
APR_DECLARE(apr_status_t) apr_time_ansi_put(apr_time_t *result,
time_t input)
{
*result = (apr_time_t) input * APR_USEC_PER_SEC;
return APR_SUCCESS;
}
/* Return micro-seconds since the Unix epoch (jan. 1, 1970) UTC */
APR_DECLARE(apr_time_t) apr_time_now(void)
{
LONGLONG aprtime = 0;
FILETIME time;
#ifndef _WIN32_WCE
GetSystemTimeAsFileTime(&time);
#else
SYSTEMTIME st;
GetSystemTime(&st);
SystemTimeToFileTime(&st, &time);
#endif
FileTimeToAprTime(&aprtime, &time);
return aprtime;
}
APR_DECLARE(apr_status_t) apr_time_exp_gmt(apr_time_exp_t *result,
apr_time_t input)
{
FILETIME ft;
SYSTEMTIME st;
AprTimeToFileTime(&ft, input);
FileTimeToSystemTime(&ft, &st);
/* The Platform SDK documents that SYSTEMTIME/FILETIME are
* generally UTC, so no timezone info needed
*/
SystemTimeToAprExpTime(result, &st);
result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_time_exp_tz(apr_time_exp_t *result,
apr_time_t input,
apr_int32_t offs)
{
FILETIME ft;
SYSTEMTIME st;
AprTimeToFileTime(&ft, input + (offs * APR_USEC_PER_SEC));
FileTimeToSystemTime(&ft, &st);
/* The Platform SDK documents that SYSTEMTIME/FILETIME are
* generally UTC, so we will simply note the offs used.
*/
SystemTimeToAprExpTime(result, &st);
result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC);
result->tm_gmtoff = offs;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_time_exp_lt(apr_time_exp_t *result,
apr_time_t input)
{
SYSTEMTIME st;
FILETIME ft, localft;
AprTimeToFileTime(&ft, input);
#if APR_HAS_UNICODE_FS && !defined(_WIN32_WCE)
IF_WIN_OS_IS_UNICODE
{
TIME_ZONE_INFORMATION *tz;
SYSTEMTIME localst;
apr_time_t localtime;
get_local_timezone(&tz);
FileTimeToSystemTime(&ft, &st);
/* The Platform SDK documents that SYSTEMTIME/FILETIME are
* generally UTC. We use SystemTimeToTzSpecificLocalTime
* because FileTimeToLocalFileFime is documented that the
* resulting time local file time would have DST relative
* to the *present* date, not the date converted.
*/
SystemTimeToTzSpecificLocalTime(tz, &st, &localst);
SystemTimeToAprExpTime(result, &localst);
result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC);
/* Recover the resulting time as an apr time and use the
* delta for gmtoff in seconds (and ignore msec rounding)
*/
SystemTimeToFileTime(&localst, &localft);
FileTimeToAprTime(&localtime, &localft);
result->tm_gmtoff = (int)apr_time_sec(localtime)
- (int)apr_time_sec(input);
/* To compute the dst flag, we compare the expected
* local (standard) timezone bias to the delta.
* [Note, in war time or double daylight time the
* resulting tm_isdst is, desireably, 2 hours]
*/
result->tm_isdst = (result->tm_gmtoff / 3600)
- (-(tz->Bias + tz->StandardBias) / 60);
}
#endif
#if APR_HAS_ANSI_FS || defined(_WIN32_WCE)
ELSE_WIN_OS_IS_ANSI
{
TIME_ZONE_INFORMATION tz;
/* XXX: This code is simply *wrong*. The time converted will always
* map to the *now current* status of daylight savings time.
*/
FileTimeToLocalFileTime(&ft, &localft);
FileTimeToSystemTime(&localft, &st);
SystemTimeToAprExpTime(result, &st);
result->tm_usec = (apr_int32_t) (input % APR_USEC_PER_SEC);
switch (GetTimeZoneInformation(&tz)) {
case TIME_ZONE_ID_UNKNOWN:
result->tm_isdst = 0;
/* Bias = UTC - local time in minutes
* tm_gmtoff is seconds east of UTC
*/
result->tm_gmtoff = tz.Bias * -60;
break;
case TIME_ZONE_ID_STANDARD:
result->tm_isdst = 0;
result->tm_gmtoff = (tz.Bias + tz.StandardBias) * -60;
break;
case TIME_ZONE_ID_DAYLIGHT:
result->tm_isdst = 1;
result->tm_gmtoff = (tz.Bias + tz.DaylightBias) * -60;
break;
default:
/* noop */;
}
}
#endif
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_time_exp_get(apr_time_t *t,
apr_time_exp_t *xt)
{
apr_time_t year = xt->tm_year;
apr_time_t days;
static const int dayoffset[12] =
{306, 337, 0, 31, 61, 92, 122, 153, 184, 214, 245, 275};
/* shift new year to 1st March in order to make leap year calc easy */
if (xt->tm_mon < 2)
year--;
/* Find number of days since 1st March 1900 (in the Gregorian calendar). */
days = year * 365 + year / 4 - year / 100 + (year / 100 + 3) / 4;
days += dayoffset[xt->tm_mon] + xt->tm_mday - 1;
days -= 25508; /* 1 jan 1970 is 25508 days since 1 mar 1900 */
days = ((days * 24 + xt->tm_hour) * 60 + xt->tm_min) * 60 + xt->tm_sec;
if (days < 0) {
return APR_EBADDATE;
}
*t = days * APR_USEC_PER_SEC + xt->tm_usec;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_time_exp_gmt_get(apr_time_t *t,
apr_time_exp_t *xt)
{
apr_status_t status = apr_time_exp_get(t, xt);
if (status == APR_SUCCESS)
*t -= (apr_time_t) xt->tm_gmtoff * APR_USEC_PER_SEC;
return status;
}
APR_DECLARE(apr_status_t) apr_os_imp_time_get(apr_os_imp_time_t **ostime,
apr_time_t *aprtime)
{
/* TODO: Consider not passing in pointer to apr_time_t (e.g., call by value) */
AprTimeToFileTime(*ostime, *aprtime);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_exp_time_get(apr_os_exp_time_t **ostime,
apr_time_exp_t *aprexptime)
{
(*ostime)->wYear = aprexptime->tm_year + 1900;
(*ostime)->wMonth = aprexptime->tm_mon + 1;
(*ostime)->wDayOfWeek = aprexptime->tm_wday;
(*ostime)->wDay = aprexptime->tm_mday;
(*ostime)->wHour = aprexptime->tm_hour;
(*ostime)->wMinute = aprexptime->tm_min;
(*ostime)->wSecond = aprexptime->tm_sec;
(*ostime)->wMilliseconds = aprexptime->tm_usec / 1000;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_imp_time_put(apr_time_t *aprtime,
apr_os_imp_time_t **ostime,
apr_pool_t *cont)
{
/* XXX: sanity failure, what is file time, gmt or local ?
*/
FileTimeToAprTime(aprtime, *ostime);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_exp_time_put(apr_time_exp_t *aprtime,
apr_os_exp_time_t **ostime,
apr_pool_t *cont)
{
/* The Platform SDK documents that SYSTEMTIME/FILETIME are
* generally UTC, so no timezone info needed
*/
SystemTimeToAprExpTime(aprtime, *ostime);
return APR_SUCCESS;
}
APR_DECLARE(void) apr_sleep(apr_interval_time_t t)
{
/* One of the few sane situations for a cast, Sleep
* is in ms, not us, and passed as a DWORD value
*/
Sleep((DWORD)(t / 1000));
}
#if defined(_WIN32_WCE)
/* A noop on WinCE, like Unix implementation */
APR_DECLARE(void) apr_time_clock_hires(apr_pool_t *p)
{
return;
}
#else
static apr_status_t clock_restore(void *unsetres)
{
ULONG newRes;
SetTimerResolution((ULONG)(apr_ssize_t)unsetres, FALSE, &newRes);
return APR_SUCCESS;
}
APR_DECLARE(void) apr_time_clock_hires(apr_pool_t *p)
{
ULONG newRes;
/* Timer resolution is stated in 100ns units. Note that TRUE requests the
* new clock resolution, FALSE above releases the request.
*/
if (SetTimerResolution(10000, TRUE, &newRes) == 0 /* STATUS_SUCCESS */) {
/* register the cleanup... */
apr_pool_cleanup_register(p, (void*)10000, clock_restore,
apr_pool_cleanup_null);
}
}
#endif