/// <summary>
///
/// </summary>
private static void TestRepeatSubmitDemo()
{
//客户端请求防重复key，实际业务因根据客户端的token,args,apiPath等诸多参数确定唯一key
var key = "mdkey001";
var value = "test1";
var expireSeconds = 100;
var csredis = new CSRedis.CSRedisClient(redisConnectionStr);
csredis.M5_SetNxRemove(key, value);
for (int i = 0; i < 200; i++)
{
//设置锁过期时间，未过期内禁止重复请求
var lockSuccess = csredis.M5_LockPE(key, value, expireSeconds);
Console.WriteLine(lockSuccess ? $"{i}请求成功" : $" {i} 请求失败，禁止重复请求");
Thread.Sleep(30);
}
}
/// <summary>
///
/// </summary>
private static void TestSeckillDemo()
{
//模拟线程数
var thredNumber = 32;
//模拟单线程请求数
var requestNumber = 5;
//秒杀库存数
var stockNumber = 10;
//秒杀成功队列key
var key = "order1";
//分布式锁key
var nxKey = "order1NX";
var csredis = new CSRedis.CSRedisClient(redisConnectionStr);
csredis.Del(key);
var isEnd = false;
List <ManualResetEvent> manualEvents = new List <ManualResetEvent>();
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
for (int i = 0; i < thredNumber; i++)
{
ManualResetEvent mre = new ManualResetEvent(false);
manualEvents.Add(mre);
Param pra = new Param();
pra.mrEvent = mre;
pra.praData = i;
ThreadPool.QueueUserWorkItem((object state) =>
{
Param pra = (Param)state;
var sets = pra.praData;
for (int i = 0; i < requestNumber; i++)
{
Thread.Sleep(50);
if (isEnd)
{
Console.WriteLine($"线程{sets} - 用户{i} 秒杀失败，抢完了。");
continue;
}
//设置客户端的标识，用于解锁
var nxSelfMarkvalue = $"thred{sets}_user{i}";
//加锁
var setnxResult = csredis.M5_LockPE(nxKey, nxSelfMarkvalue, 1000);
if (setnxResult)
{
var len = csredis.LLen(key);
//库存不足
if (len >= stockNumber)
{
isEnd = true;
stopwatch.Stop();
Console.WriteLine($"线程{sets} - 用户{i} 秒杀失败，抢完了。");
}
else
{
var value = $"线程{sets}-用户{i}";
csredis.LPush(key, value);
//解锁 nxSelfMarkvalue，防止误解锁
csredis.M5_UnLock(nxKey, nxSelfMarkvalue);
Console.WriteLine($"线程{sets} - 用户{i} 秒杀成功。");
}
}
else
{
Console.WriteLine($"线程{sets} - 用户{i} 系统繁忙，请稍后再试。 秒杀失败。");
}
}
pra.mrEvent.Set();
// Console.WriteLine($"线程{sets}已抢购完毕！");
}, pra);
}
WaitHandle.WaitAll(manualEvents.ToArray());
var lenALL = csredis.LLen(key);
Console.WriteLine($"\r\n秒杀成功人数：{lenALL} 人,用时：{stopwatch.ElapsedMilliseconds} 毫秒.");
Console.WriteLine($"\r\n是否超售：{(lenALL > stockNumber ? "是":"否")}");
Console.WriteLine("\r\n秒杀成功人员名单：");
for (int i = 0; i < stockNumber; i++)
{
Console.WriteLine(csredis.RPop(key));
}
}
