public async static System.Threading.Tasks.Task <bool> Back(Env env)
{
while (true)
{
var bl = new BL();
bl.id = ID;
foreach (var r in cache.ToList())
{
bl.v.Add(r.Key, r.Value);
}
foreach (var r in kw)
{
bl.off.Add(r.Key, r.Value.AbsoluteExpiration);
}
var doc = BsonMapper.Global.ToDocument <BL>(bl);
env.Engine.Upsert("ky", doc);
await System.Threading.Tasks.Task.Delay(1000);
}
}