88 lines
3.7 KiB
C#
88 lines
3.7 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Date
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{
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public static class DateTimeUtilities
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{
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || _UNITY_2021_2_OR_NEWER_
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public static readonly DateTime UnixEpoch = DateTime.UnixEpoch;
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#else
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public static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
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#endif
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public static readonly long MaxUnixMs =
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(DateTime.MaxValue.Ticks - UnixEpoch.Ticks) / TimeSpan.TicksPerMillisecond;
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public static readonly long MinUnixMs = 0L;
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/// <summary>
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/// Return the number of milliseconds since the Unix epoch (1 Jan., 1970 UTC) for a given DateTime value.
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/// </summary>
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/// <remarks>The DateTime value will be converted to UTC (using <see cref="DateTime.ToUniversalTime"/> before
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/// conversion.</remarks>
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/// <param name="dateTime">A DateTime value not before the epoch.</param>
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/// <returns>Number of whole milliseconds after epoch.</returns>
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/// <exception cref="ArgumentOutOfRangeException">'dateTime' is before the epoch.</exception>
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public static long DateTimeToUnixMs(DateTime dateTime)
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{
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DateTime utc = dateTime.ToUniversalTime();
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if (utc.CompareTo(UnixEpoch) < 0)
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throw new ArgumentOutOfRangeException(nameof(dateTime), "DateTime value may not be before the epoch");
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return (utc.Ticks - UnixEpoch.Ticks) / TimeSpan.TicksPerMillisecond;
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}
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/// <summary>
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/// Create a UTC DateTime value from the number of milliseconds since the Unix epoch (1 Jan., 1970 UTC).
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/// </summary>
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/// <param name="unixMs">Number of milliseconds since the epoch.</param>
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/// <returns>A UTC DateTime value</returns>
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/// <exception cref="ArgumentOutOfRangeException">'unixMs' is before 'MinUnixMs' or after 'MaxUnixMs'.
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/// </exception>
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public static DateTime UnixMsToDateTime(long unixMs)
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{
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if (unixMs < MinUnixMs || unixMs > MaxUnixMs)
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throw new ArgumentOutOfRangeException(nameof(unixMs));
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return new DateTime(unixMs * TimeSpan.TicksPerMillisecond + UnixEpoch.Ticks, DateTimeKind.Utc);
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}
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/// <summary>
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/// Return the current number of milliseconds since the Unix epoch (1 Jan., 1970 UTC).
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/// </summary>
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public static long CurrentUnixMs()
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{
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return DateTimeToUnixMs(DateTime.UtcNow);
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}
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public static DateTime WithPrecisionCentisecond(DateTime dateTime)
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{
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int millisecond = dateTime.Millisecond - (dateTime.Millisecond % 10);
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return new DateTime(dateTime.Year, dateTime.Month, dateTime.Day,
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dateTime.Hour, dateTime.Minute, dateTime.Second, millisecond, dateTime.Kind);
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}
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public static DateTime WithPrecisionDecisecond(DateTime dateTime)
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{
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int millisecond = dateTime.Millisecond - (dateTime.Millisecond % 100);
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return new DateTime(dateTime.Year, dateTime.Month, dateTime.Day,
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dateTime.Hour, dateTime.Minute, dateTime.Second, millisecond, dateTime.Kind);
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}
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public static DateTime WithPrecisionMillisecond(DateTime dateTime)
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{
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return new DateTime(dateTime.Year, dateTime.Month, dateTime.Day,
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dateTime.Hour, dateTime.Minute, dateTime.Second, dateTime.Millisecond, dateTime.Kind);
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}
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public static DateTime WithPrecisionSecond(DateTime dateTime)
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{
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return new DateTime(dateTime.Year, dateTime.Month, dateTime.Day,
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dateTime.Hour, dateTime.Minute, dateTime.Second, dateTime.Kind);
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}
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}
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}
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#pragma warning restore
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#endif
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