public static async Task <bool> SafedUnLockAsync(this IDatabase redisDb, string cacheKey, string lockValue)
{
ArgumentCheck.NotNullOrWhiteSpace(cacheKey, nameof(cacheKey));
ArgumentCheck.NotNullOrWhiteSpace(lockValue, nameof(lockValue));
var lockKey = GetLockKey(cacheKey);
AutoDelayTimers.Instance.CloseTimer(lockKey);
var script = @"local invalue = @value
local currvalue = redis.call('get',@key)
if(invalue==currvalue) then redis.call('del',@key)
return 1
else
return 0
end";
var parameters = new { key = lockKey, value = lockValue };
var prepared = LuaScript.Prepare(script);
var result = (int)await redisDb.ScriptEvaluateAsync(prepared, parameters);
return(result == 1);
}
internal static void Delay(IDatabase redisDb, string key, string value, int milliseconds)
{
if (!AutoDelayTimers.Instance.ContainsKey(key))
{
return;
}
// local ttltime = redis.call('PTTL', @key)
var script = @"local val = redis.call('GET', @key)
if val==@value then
redis.call('PEXPIRE', @key, @milliseconds)
return 1
end
return 0";
object parameters = new { key, value, milliseconds };
var prepared = LuaScript.Prepare(script);
var result = redisDb.ScriptEvaluateAsync(prepared, parameters, CommandFlags.None).GetAwaiter().GetResult();
if ((int)result == 0)
{
AutoDelayTimers.Instance.CloseTimer(key);
}
return;
}