public void RedisLockTest()
{
int count = 0;
var tasklist = new List <Task>();
for (var i = 0; i < 200; ++i)
{
tasklist.Add(Task.Run(() =>
{
try
{
using (var @lock = new RedisDistributedLock(nameof(RedisLockTest)))
{
++count;
}
}
catch (Exception e)
{
//
}
}));
}
Task.WaitAll(tasklist.ToArray());
count.ToString();
}
public async ValueTask <IAcquiredLock> AcquireLock(string lockKey, CancellationToken cancellationToken)
{
var @lock = new RedisDistributedLock(lockKey, _database, builder => builder.Expiry(_options.LockExpiry));
var acquired = await @lock.AcquireAsync(null, cancellationToken);
return(new RedisAcquiredLockWrapper(acquired));
}
public void TestName()
{
const string Name = "\0🐉汉字\b\r\n\\";
var @lock = new RedisDistributedLock(Name, new Mock <IDatabase>(MockBehavior.Strict).Object);
@lock.Name.ShouldEqual(Name);
@lock.Key.ShouldEqual(new RedisKey(Name));
}
public bool Execute()
{
if (buyerId == null || (sellerId == null || amount < 0.0))
{
throw new InvalidTransactionException("This is an invalid transaction");
}
if (status == STATUS.EXECUTED)
{
return(true);
}
bool isLocked = false;
try
{
isLocked = RedisDistributedLock.GetSingletonInstance().Lock(id);
// 锁定未成功，返回false
if (!isLocked)
{
return(false);
}
if (status == STATUS.EXECUTED)
{
return(true); // double check
}
long executionInvokedTimestamp = DateTimeOffset.Now.ToUnixTimeMilliseconds();
// 交易超过20天
if (executionInvokedTimestamp - createdTimestamp > 1728000000)
{
this.status = STATUS.EXPIRED;
return(false);
}
IWalletService walletService = new WalletServiceImpl();
string walletTransactionId = walletService.MoveMoney(id, buyerId, sellerId, amount);
if (walletTransactionId != null)
{
this.walletTransactionId = walletTransactionId;
this.status = STATUS.EXECUTED;
return(true);
}
else
{
this.status = STATUS.FAILED;
return(false);
}
}
finally
{
if (isLocked)
{
RedisDistributedLock.GetSingletonInstance().Unlock(id);
}
}
}
public override IDistributedLock CreateLockWithExactName(string name)
{
var @lock = new RedisDistributedLock(name, this.Strategy.DatabaseProvider.Databases, this.Strategy.Options);
this.Strategy.RegisterKillHandleAction(
() => this.Strategy.DatabaseProvider.Databases.Take((this.Strategy.DatabaseProvider.Databases.Count / 2) + 1)
.ToList()
.ForEach(db => db.KeyDelete(@lock.Key))
);
return(@lock);
}
static void DistLock()
{
var connection = ConnectionMultiplexer.Connect("192.168.66.60"); // uses StackExchange.Redis
connection.GetDatabase().WithKeyPrefix("lock");
IDistributedLock dlock = new RedisDistributedLock("MyLockName", connection.GetDatabase(2));
using (var handle = dlock.TryAcquire())
{
if (handle != null)
{
Console.WriteLine("Locked");
Thread.Sleep(TimeSpan.FromSeconds(60));
/* I have the lock */
Console.WriteLine("Unlocked");
}
}
}
