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51 lines
1.6 KiB
51 lines
1.6 KiB
#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 class DateTimeUtilities |
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{ |
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public static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1); |
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private DateTimeUtilities() |
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{ |
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} |
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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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/// <param name="dateTime">A UTC DateTime value not before epoch.</param> |
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/// <returns>Number of whole milliseconds after epoch.</returns> |
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/// <exception cref="ArgumentException">'dateTime' is before epoch.</exception> |
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public static long DateTimeToUnixMs( |
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DateTime dateTime) |
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{ |
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if (dateTime.CompareTo(UnixEpoch) < 0) |
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throw new ArgumentException("DateTime value may not be before the epoch", "dateTime"); |
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return (dateTime.Ticks - UnixEpoch.Ticks) / TimeSpan.TicksPerMillisecond; |
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} |
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/// <summary> |
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/// Create a 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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public static DateTime UnixMsToDateTime( |
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long unixMs) |
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{ |
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return new DateTime(unixMs * TimeSpan.TicksPerMillisecond + UnixEpoch.Ticks); |
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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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} |
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} |
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#pragma warning restore |
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#endif
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