public static void CleanupTags(this IRedisClient client)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
client.ExecLuaAsInt(Script(LuaResources.CleanupTags));
}
/// <summary>
/// Sets a key/value pair, and marks the key with one or more specified tags.
/// </summary>
public static int SetWithTags <T>(this IRedisClient client, string key, T value, IList <string> tags, TimeSpan?expiresIn = null)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
if (key == null)
{
throw new ArgumentNullException("key");
}
if (tags == null)
{
throw new ArgumentNullException("tags");
}
if (value == null)
{
throw new ArgumentNullException("value", "Use Remove(key) intead.");
}
if (tags.Count == 0)
{
if (expiresIn.HasValue)
{
client.Set(key, value, expiresIn.Value);
}
else
{
client.Set(key, value);
}
return(0);
}
string[] keys = new string[tags.Count + 1];
keys[0] = key;
tags.CopyTo(keys, 1);
string serializedValue = SerializeValue(value);
var args = new List <string> {
serializedValue
};
if (expiresIn.HasValue)
{
int seconds = (int)expiresIn.Value.TotalSeconds;
args.Add(seconds.ToString(CultureInfo.InvariantCulture));
}
CleanupByProbability(client);
// NOTE: Scripts should be executed by their SHA1 hash rather than by sending
// the full text across the wire each time. Left as an excercise for the reader.
int numberOfTagsAdded = (int)client.ExecLuaAsInt(Script(LuaResources.AddWithTags), keys, args.ToArray());
return(numberOfTagsAdded);
}
/**
* 释放分布式锁
* @param jedis Redis客户端
* @param lockKey 锁
* @param requestId 请求标识
* @return 是否释放成功
*/
public override bool ReleaseDistributedLock(String lockKey, String requestId)
{
long RELEASE_SUCCESS = 1L;
using (IRedisClient redis = GetRedisClient())
{
String script = "if redis.call('get', KEYS[1]) == ARGV[1] then return redis.call('del', KEYS[1]) else return 0 end";
Object result = redis.ExecLuaAsInt(script, lockKey, requestId);
if (RELEASE_SUCCESS.Equals(result))
{
return(true);
}
return(false);
}
}
public static int RemoveKeysByPattern(this IRedisClient client, string pattern)
{
return((int)client.ExecLuaAsInt(Script.RemoveKeysByPatternScript, pattern));
}
