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C# Instant.ToUnixTimeTicks方法代码示例

本文整理汇总了C#中Instant.ToUnixTimeTicks方法的典型用法代码示例。如果您正苦于以下问题:C# Instant.ToUnixTimeTicks方法的具体用法?C# Instant.ToUnixTimeTicks怎么用?C# Instant.ToUnixTimeTicks使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Instant的用法示例。


在下文中一共展示了Instant.ToUnixTimeTicks方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: WriteZoneIntervalTransition

        public void WriteZoneIntervalTransition(Instant? previous, Instant value)
        {
            if (previous != null)
            {
                Preconditions.CheckArgument(value >= previous.Value, nameof(value), "Transition must move forward in time");
            }

            unchecked
            {
                if (value == Instant.BeforeMinValue)
                {
                    WriteCount(ZoneIntervalConstants.MarkerMinValue);
                    return;
                }
                if (value == Instant.AfterMaxValue)
                {
                    WriteCount(ZoneIntervalConstants.MarkerMaxValue);
                    return;
                }

                // In practice, most zone interval transitions will occur within 4000-6000 hours of the previous one
                // (i.e. about 5-8 months), and at an integral number of hours difference. We therefore gain a
                // significant reduction in output size by encoding transitions as the whole number of hours since the
                // previous, if possible.
                // If the previous value was "the start of time" then there's no point in trying to use it.
                if (previous != null && previous.Value != Instant.BeforeMinValue)
                {
                    // Note that the difference might exceed the range of a long, so we can't use a Duration here.
                    ulong ticks = (ulong) (value.ToUnixTimeTicks() - previous.Value.ToUnixTimeTicks());
                    if (ticks % TicksPerHour == 0)
                    {
                        ulong hours = ticks / TicksPerHour;
                        // As noted above, this will generally fall within the 4000-6000 range, although values up to
                        // ~700,000 exist in TZDB.
                        if (ZoneIntervalConstants.MinValueForHoursSincePrevious <= hours &&
                            hours < ZoneIntervalConstants.MinValueForMinutesSinceEpoch)
                        {
                            WriteCount((int) hours);
                            return;
                        }
                    }
                }

                // We can't write the transition out relative to the previous transition, so let's next try writing it
                // out as a whole number of minutes since an (arbitrary, known) epoch.
                if (value >= ZoneIntervalConstants.EpochForMinutesSinceEpoch)
                {
                    ulong ticks = (ulong) (value.ToUnixTimeTicks() - ZoneIntervalConstants.EpochForMinutesSinceEpoch.ToUnixTimeTicks());
                    if (ticks % TicksPerMinute == 0)
                    {
                        ulong minutes = ticks / TicksPerMinute;
                        // We typically have a count on the order of 80M here.
                        if (ZoneIntervalConstants.MinValueForMinutesSinceEpoch < minutes && minutes <= int.MaxValue)
                        {
                            WriteCount((int) minutes);
                            return;
                        }
                    }
                }
                // Otherwise, just write out a marker followed by the instant as a 64-bit number of ticks.  Note that
                // while most of the values we write here are actually whole numbers of _seconds_, optimising for that
                // case will save around 2KB (with tzdb 2012j), so doesn't seem worthwhile.
                WriteCount(ZoneIntervalConstants.MarkerRaw);
                WriteInt64(value.ToUnixTimeTicks());
            }
        }
开发者ID:ivandrofly,项目名称:nodatime,代码行数:66,代码来源:DateTimeZoneWriter.cs


注:本文中的Instant.ToUnixTimeTicks方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。