private RedLock(
ILogger <RedLock> logger,
ICollection <RedisConnection> redisCaches,
string resource,
TimeSpan expiryTime,
TimeSpan?waitTime = null,
TimeSpan?retryTime = null,
RedLockRetryConfiguration retryConfiguration = null,
CancellationToken?cancellationToken = null)
{
this.logger = logger;
if (expiryTime < minimumExpiryTime)
{
logger.LogWarning($"Expiry time {expiryTime.TotalMilliseconds}ms too low, setting to {minimumExpiryTime.TotalMilliseconds}ms");
expiryTime = minimumExpiryTime;
}
if (retryTime != null && retryTime.Value < minimumRetryTime)
{
logger.LogWarning($"Retry time {retryTime.Value.TotalMilliseconds}ms too low, setting to {minimumRetryTime.TotalMilliseconds}ms");
retryTime = minimumRetryTime;
}
this.redisCaches = redisCaches;
quorum = redisCaches.Count / 2 + 1;
quorumRetryCount = retryConfiguration?.RetryCount ?? 3;
quorumRetryDelayMs = retryConfiguration?.RetryDelayMs ?? 400;
clockDriftFactor = 0.01;
Resource = resource;
LockId = Guid.NewGuid().ToString();
this.expiryTime = expiryTime;
this.waitTime = waitTime;
this.retryTime = retryTime;
this.cancellationToken = cancellationToken ?? CancellationToken.None;
}
internal static async Task <RedLock> CreateAsync(
ILogger <RedLock> logger,
ICollection <RedisConnection> redisCaches,
string resource,
TimeSpan expiryTime,
TimeSpan?waitTime = null,
TimeSpan?retryTime = null,
RedLockRetryConfiguration retryConfiguration = null,
CancellationToken?cancellationToken = null)
{
var redisLock = new RedLock(
logger,
redisCaches,
resource,
expiryTime,
waitTime,
retryTime,
retryConfiguration,
cancellationToken);
await redisLock.StartAsync().ConfigureAwait(false);
return(redisLock);
}
/// <summary>
/// Create a RedLockFactory using existing StackExchange.Redis ConnectionMultiplexers
/// </summary>
public static RedLockFactory Create(IList <RedLockMultiplexer> existingMultiplexers, ILoggerFactory loggerFactory = null, RedLockRetryConfiguration retryConfiguration = null)
{
var configuration = new RedLockConfiguration(
new ExistingMultiplexersRedLockConnectionProvider
{
Multiplexers = existingMultiplexers
},
loggerFactory)
{
RetryConfiguration = retryConfiguration
};
return(new RedLockFactory(configuration));
}
/// <summary>
/// Create a RedLockFactory using a list of RedLockEndPoints (ConnectionMultiplexers will be internally managed by RedLock.net)
/// </summary>
public static RedLockFactory Create(IList <RedLockEndPoint> endPoints, ILoggerFactory loggerFactory = null, RedLockRetryConfiguration retryConfiguration = null)
{
var configuration = new RedLockConfiguration(endPoints, loggerFactory)
{
RetryConfiguration = retryConfiguration
};
return(new RedLockFactory(configuration));
}
