/// <summary>
/// 按value倒序获取一个hash中的对象
/// </summary>
/// <param name="client"></param>
/// <param name="hashKey"></param>
/// <param name="start">获取的第一个对象index（从1开始算,含）</param>
/// <param name="stop">获取的最后一个对象index（从1开始算,含）</param>
/// <returns></returns>
public static Dictionary <string, string> GetDescendingValueFromHash(this IRedisClient client, string hashKey, int start, int stop)
{
var sha1 = client.GetSha1(get_descending_hash_start_stop_text);
var result = client.ExecLuaShaAsList(sha1, hashKey, start.ToString(), stop.ToString());
var dic = new Dictionary <string, string>(result.Count / 2);
for (var i = 0; i < result.Count; i += 2)
{
dic.Add(result[i], result[i + 1]);
}
return(dic);
}
public static List <string> HashScan(this IRedisClient redis, string hashId, long cursor = 0, int pageSize = 500)
{
var sha1 = redis.GetSha1(RedisScanLua.HSCAN);
return(redis.ExecLuaShaAsList(sha1, hashId, cursor.ToString(), pageSize.ToString()));
}
/// <summary>
/// 需要覆盖一个大Key时，请用本方法，注意需要定期清除gc:keys:*
/// </summary>
public static void RenameFast(this IRedisClient redis, string key, string newKey)
{
var sha1 = redis.GetSha1(Script.RenameFast);
redis.ExecLuaShaAsList(sha1, key, newKey);
}
/// <summary>
/// 需要删除一个大Key时，请用本方法，注意需要定期清除gc:keys:*
/// </summary>
public static void RemoveKeyByRename(this IRedisClient redis, string key)
{
var sha1 = redis.GetSha1(Script.DeleteKeyByRename);
redis.ExecLuaShaAsList(sha1, key);
}
public static List <string> SearchKeysSafe(this IRedisClient redis, string pattern, long cursor = 0, int pageSize = 500)
{
var sha1 = redis.GetSha1(RedisScanLua.SCAN);
return(redis.ExecLuaShaAsList(sha1, pattern, cursor.ToString(), pageSize.ToString()));
}
public static List <string> GetSlowLog(this IRedisClient client)
{
var sha1 = client.GetSha1(slow_log_command_text);
return(client.ExecLuaShaAsList(sha1));
}
/// <summary>
/// 获取多个hash中的相同项的值
/// </summary>
/// <param name="redis"></param>
/// <param name="keyInHash">比如房间id</param>
/// <param name="hashKeys">比如r:gift:exp,r:live:exp</param>
/// <returns></returns>
public static List <string> GetMiltiHashValueWithSameKey(this IRedisClient redis, string keyInHash, params string[] hashKeys)
{
var sha1 = redis.GetSha1(get_multi_hash_value_with_same_key);
return(redis.ExecLuaShaAsList(sha1, hashKeys, new[] { keyInHash }));
}
