536cd135cc
Former-commit-id: 5624ac747d633e885131e8349322922b6a59baaa
81 lines
2.8 KiB
C#
81 lines
2.8 KiB
C#
//------------------------------------------------------------------------------
|
|
// <copyright file="FileChangesMonitor.cs" company="Microsoft">
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
|
// </copyright>
|
|
//------------------------------------------------------------------------------
|
|
|
|
namespace System.Web.Util {
|
|
|
|
using System;
|
|
|
|
internal enum TimeUnit {
|
|
Unknown = 0,
|
|
Days,
|
|
Hours,
|
|
Minutes,
|
|
Seconds,
|
|
Milliseconds
|
|
};
|
|
|
|
internal sealed class DateTimeUtil {
|
|
private DateTimeUtil() {}
|
|
const long FileTimeOffset = 504911232000000000;
|
|
static readonly DateTime MinValuePlusOneDay = DateTime.MinValue.AddDays(1);
|
|
static readonly DateTime MaxValueMinusOneDay = DateTime.MaxValue.AddDays(-1);
|
|
|
|
static internal DateTime FromFileTimeToUtc(long filetime) {
|
|
long universalTicks = filetime + FileTimeOffset;
|
|
// Dev10 733288: Caching: behavior change for CacheDependency when using UseMemoryCache=1
|
|
// ObjectCacheHost converts DateTime to a DateTimeOffset, and the conversion requires
|
|
// that DateTimeKind be set correctly
|
|
return new DateTime(universalTicks, DateTimeKind.Utc);
|
|
}
|
|
|
|
static internal DateTime ConvertToUniversalTime(DateTime localTime) {
|
|
if (localTime < MinValuePlusOneDay) {
|
|
return DateTime.MinValue;
|
|
}
|
|
|
|
if (localTime > MaxValueMinusOneDay) {
|
|
return DateTime.MaxValue;
|
|
}
|
|
|
|
return localTime.ToUniversalTime();
|
|
}
|
|
|
|
static internal DateTime ConvertToLocalTime(DateTime utcTime) {
|
|
if (utcTime < MinValuePlusOneDay) {
|
|
return DateTime.MinValue;
|
|
}
|
|
|
|
if (utcTime > MaxValueMinusOneDay) {
|
|
return DateTime.MaxValue;
|
|
}
|
|
|
|
return utcTime.ToLocalTime();
|
|
}
|
|
|
|
static internal TimeSpan GetTimeoutFromTimeUnit(int timeoutValue, TimeUnit timeoutUnit) {
|
|
switch (timeoutUnit) {
|
|
case TimeUnit.Days:
|
|
return new TimeSpan(timeoutValue, 0, 0, 0);
|
|
case TimeUnit.Hours:
|
|
return new TimeSpan(timeoutValue, 0, 0);
|
|
case TimeUnit.Seconds:
|
|
return new TimeSpan(0, 0, timeoutValue);
|
|
case TimeUnit.Milliseconds:
|
|
return new TimeSpan(0, 0, 0, 0, timeoutValue);
|
|
case TimeUnit.Minutes:
|
|
return new TimeSpan(0, timeoutValue, 0);
|
|
case TimeUnit.Unknown:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
throw new ArgumentException(SR.GetString(SR.InvalidArgumentValue, "timeoutUnit"));
|
|
}
|
|
}
|
|
}
|
|
|
|
|