lxm_library_java/SnowFlake-IdGenerator
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yitter
2021-09-27 14:30:35 +08:00
parent 069cf45625
commit 1e2cd11be2
6 changed files with 138 additions and 17 deletions
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8
C#.NET/source/Yitter.IdGenTest/Program.cs
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@@ -11,7 +11,7 @@ namespace Yitter.OrgSystem.TestA
class Program
{
// 测试参数（默认配置下，最佳性能是10W/s）
static int genIdCount = 50000; // 计算ID数量（如果要验证50W效率，请将TopOverCostCount设置为20000或适当增加SeqBitLength）
static int genIdCount = 2;//50000; // 计算ID数量（如果要验证50W效率，请将TopOverCostCount设置为20000或适当增加SeqBitLength）
static short method = 1; // 1-漂移算法，2-传统算法
@@ -35,9 +35,12 @@ namespace Yitter.OrgSystem.TestA
WorkerIdBitLength = 6,
SeqBitLength = 6,
DataCenterIdBitLength = 10,
TopOverCostCount = 2000,
//MinSeqNumber = 1,
//TimestampType = 1,
// MinSeqNumber = 1,
// MaxSeqNumber = 200,
// BaseTime = DateTime.Now.AddYears(-10),
@@ -128,6 +131,7 @@ namespace Yitter.OrgSystem.TestA
MinSeqNumber = options.MinSeqNumber,
MaxSeqNumber = options.MaxSeqNumber,
Method = options.Method,
//TimestampType = 1,
};
Console.WriteLine("Gen：" + i);

16
C#.NET/source/Yitter.IdGenerator/Contract/IdGeneratorOptions.cs
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@@ -64,6 +64,22 @@ namespace Yitter.IdGenerator
public virtual int TopOverCostCount { get; set; } = 2000;
/// <summary>
/// 数据中心ID（默认0）
/// </summary>
public virtual uint DataCenterId { get; set; } = 0;
/// <summary>
/// 数据中心ID长度（默认0）
/// </summary>
public virtual byte DataCenterIdBitLength { get; set; } = 0;
/// <summary>
/// 时间戳类型（0-毫秒，1-秒），默认0
/// </summary>
public virtual byte TimestampType { get; set; } = 0;
public IdGeneratorOptions()
{

12
C#.NET/source/Yitter.IdGenerator/Core/SnowWorkerM1.cs
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@@ -51,9 +51,9 @@ namespace Yitter.IdGenerator
/// <summary>
/// 最大漂移次数（含）
/// </summary>
protected readonly int TopOverCostCount = 0;
protected int TopOverCostCount = 0;
protected readonly byte _TimestampShift = 0;
protected byte _TimestampShift = 0;
protected static object _SyncLock = new object();
protected ushort _CurrentSeqNumber;
@@ -215,7 +215,7 @@ namespace Yitter.IdGenerator
_TurnBackIndex));
}
private long NextOverCostId()
protected virtual long NextOverCostId()
{
long currentTimeTick = GetCurrentTimeTick();
@@ -262,7 +262,7 @@ namespace Yitter.IdGenerator
return CalcId(_LastTimeTick);
}
private long NextNormalId()
protected virtual long NextNormalId()
{
long currentTimeTick = GetCurrentTimeTick();
@@ -319,7 +319,7 @@ namespace Yitter.IdGenerator
return CalcId(_LastTimeTick);
}
private long CalcId(in long useTimeTick)
protected virtual long CalcId(in long useTimeTick)
{
var result = ((useTimeTick << _TimestampShift) +
((long)WorkerId << SeqBitLength) +
@@ -329,7 +329,7 @@ namespace Yitter.IdGenerator
return result;
}
private long CalcTurnBackId(in long useTimeTick)
protected virtual long CalcTurnBackId(in long useTimeTick)
{
var result = ((useTimeTick << _TimestampShift) +
((long)WorkerId << SeqBitLength) + _TurnBackIndex);

83
C#.NET/source/Yitter.IdGenerator/Core/SnowWorkerM3.cs Normal file
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@@ -0,0 +1,83 @@
/*
* 版权属于：yitter(yitter@126.com)
* 开源地址：https://github.com/yitter/idgenerator
* 版权协议：MIT
* 版权说明：只要保留本版权，你可以免费使用、修改、分发本代码。
* 免责条款：任何因为本代码产生的系统、法律、政治、宗教问题，均与版权所有者无关。
*
*/
using System;
using System.Threading;
using System.Threading.Tasks;
namespace Yitter.IdGenerator
{
/// <summary>
/// 雪花漂移算法（支持数据中心ID和秒级时间戳）
/// </summary>
internal class SnowWorkerM3 : SnowWorkerM1
{
/// <summary>
/// 数据中心ID（默认0）
/// </summary>
protected readonly uint DataCenterId = 0;
/// <summary>
/// 数据中心ID长度（默认0）
/// </summary>
protected readonly byte DataCenterIdBitLength = 0;
/// <summary>
/// 时间戳类型（0-毫秒，1-秒），默认0
/// </summary>
protected readonly byte TimestampType = 0;
public SnowWorkerM3(IdGeneratorOptions options) : base(options)
{
// 秒级时间戳类型
TimestampType = options.TimestampType;
// DataCenter相关
DataCenterId = options.DataCenterId;
DataCenterIdBitLength = options.DataCenterIdBitLength;
if (TimestampType == 1)
{
TopOverCostCount = 0;
}
_TimestampShift = (byte)(DataCenterIdBitLength + WorkerIdBitLength + SeqBitLength);
}
protected override long CalcId(in long useTimeTick)
{
var result = ((useTimeTick << _TimestampShift) +
((long)DataCenterId << DataCenterIdBitLength) +
((long)WorkerId << SeqBitLength) +
(long)_CurrentSeqNumber);
_CurrentSeqNumber++;
return result;
}
protected override long CalcTurnBackId(in long useTimeTick)
{
var result = ((useTimeTick << _TimestampShift) +
((long)DataCenterId << DataCenterIdBitLength) +
((long)WorkerId << SeqBitLength) +
_TurnBackIndex);
_TurnBackTimeTick--;
return result;
}
protected override long GetCurrentTimeTick()
{
return TimestampType == 0 ?
(long)(DateTime.UtcNow - BaseTime).TotalMilliseconds :
(long)(DateTime.UtcNow - BaseTime).TotalSeconds;
}
}
}

26
C#.NET/source/Yitter.IdGenerator/DefaultIdGenerator.cs
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@@ -46,12 +46,12 @@ namespace Yitter.IdGenerator
{
throw new ApplicationException("WorkerIdBitLength error.(range:[1, 21])");
}
if (options.SeqBitLength + options.WorkerIdBitLength > 22)
if (options.DataCenterIdBitLength + options.WorkerIdBitLength + options.SeqBitLength > 22)
{
throw new ApplicationException("error：WorkerIdBitLength + SeqBitLength <= 22");
throw new ApplicationException("error：DataCenterIdBitLength + WorkerIdBitLength + SeqBitLength <= 22");
}
// 3.WorkerId
// 3.WorkerId & DataCenterId
var maxWorkerIdNumber = (1 << options.WorkerIdBitLength) - 1;
if (maxWorkerIdNumber == 0)
{
@@ -62,6 +62,12 @@ namespace Yitter.IdGenerator
throw new ApplicationException("WorkerId error. (range:[0, " + maxWorkerIdNumber + "]");
}
var maxDataCenterIdNumber = (1 << options.DataCenterIdBitLength) - 1;
if (options.DataCenterId < 0 || options.DataCenterId > maxDataCenterIdNumber)
{
throw new ApplicationException("DataCenterId error. (range:[0, " + maxDataCenterIdNumber + "]");
}
// 4.SeqBitLength
if (options.SeqBitLength < 2 || options.SeqBitLength > 21)
{
@@ -87,18 +93,22 @@ namespace Yitter.IdGenerator
switch (options.Method)
{
case 1:
_SnowWorker = new SnowWorkerM1(options);
break;
case 2:
_SnowWorker = new SnowWorkerM2(options);
break;
default:
_SnowWorker = new SnowWorkerM1(options);
if (options.DataCenterIdBitLength == 0 && options.TimestampType == 0)
{
_SnowWorker = new SnowWorkerM1(options);
}
else
{
_SnowWorker = new SnowWorkerM3(options);
}
break;
}
if (options.Method == 1)
if (options.Method != 2)
{
Thread.Sleep(500);
}