A description of the global ID, snowflake (snowflake) algorithm

The last time simply said: Http://www.cnblogs.com/dunitian/p/6041745.html#uid

C # version of foreign friends have been encapsulated, we can go to see: https://github.com/ccollie/snowflake-net

powerful netizens come up with a simplified version:http://blog.csdn.net/***/article/details/*** (address I will not post, to the elders need the minimum respect)

At first I was using this simplified version and later found duplicates ... (Demo:https://github.com/dunitian/tempcode/tree/master/2016-11-16/twitter_snowflake)

Intense discussion of global IDs: https://q.cnblogs.com/q/53552/

later on the basis of the foreign Daniel rewrite the modified part of the content (Https://github.com/ccollie/snowflake-net), added some annotations and other "support core." Now it is possible to go to NuGet for direct download using:snowflake.net

Source Address: Https://github.com/dunitian/snowflake-net

Test Case:

Test code:

Using system;using system.collections.generic;using system.threading;using system.threading.tasks;using        Snowflake.net;namespace snowflake.zconsole{class Program {private static int N = 2000000;        private static hashset<long> set = new hashset<long> ();        private static Idworker worker = new Idworker (1, 1);        private static int taskcount = 0;            static void Main (string[] args) {Task.run (() = GetID ());            Task.run (() = GetID ());            Task.run (() = GetID ());            Task.run (() = Printf ());        Console.readkey (); } private static void Printf () {while (Taskcount! = 3) {Console.Write                Line ("...");            Thread.Sleep (1000); } Console.WriteLine (set.        Count = = N * taskcount);        } private static Object o = new Object (); private static void GetID () {for (var i = 0; I < N i++) {var id = worker.                NextID (); Lock (o) {if (set.                    Contains (ID)) {Console.WriteLine ("Discovery duplicates: {0}", id); } else {set.                    ADD (ID);        }}} Console.WriteLine ($ "Task {++taskcount} completed"); }    }}

　　

Maybe some people just care about how to use it later? = = "

Idworker worker = new Idworker (1, 1); //large concurrency, reducing the number of new times can effectively avoid the possibility of duplication

var id = worker. NextID ();

It is possible that the above reduction new some comrades do not quite understand, (⊙o⊙) ..., for example:

If the test code is not changed, change the following sentence:

Full call Demo: (Https://github.com/dunitian/snowflake-net/tree/master/Demo)

Core: (Https://github.com/dunitian/snowflake-net/tree/master/Demo.Core)

A description of the global ID, snowflake (snowflake) algorithm