public void Load <T>(string key, LoadCallback <T> cb)
where T : IMessage
{
uint dsMsgId = MessageMapping.Query(typeof(T));
if (dsMsgId == uint.MaxValue)
{
cb(DSLoadResult.PrepError, string.Format("unknown data message: {0}", typeof(T).Name), default(T));
return;
}
string timeoutKey = string.Format("{0}:{1}", dsMsgId, key);
if (loadOpt_timeout_.Exists(timeoutKey))
{
cb(DSLoadResult.PrepError, "Load operation are too frequent", default(T));
}
else
{
LNReq_Load.Builder loadBuilder = LNReq_Load.CreateBuilder();
loadBuilder.SetDsMsgId(dsMsgId);
loadBuilder.SetKey(key);
LNReq_Load loadData = loadBuilder.Build();
if (!channel_.Send(loadData))
{
cb(DSLoadResult.PrepError, "Create protobuf data error.", default(T));
}
else
{
LoadCBBox cbbox = new LoadCBBoxI <T>(cb);
string timeoutTip = string.Format("DataStore load request timeout. MsgId:{0}, Key:{1}", dsMsgId, key);
loadOpt_timeout_.Set(timeoutKey, cbbox, () => cbbox.Invoke(DSLoadResult.TimeoutError, timeoutTip, null));
}
}
}
private void LoadHandler(LNReq_Load msg, PBChannel channel, int handle, uint seq)
{
if (!Enable)
{
LogSys.Log(LOG_TYPE.ERROR, "Load a message while DataOperator is Disable");
return;
}
try
{
DataCacheSystem.Instance.LoadActionQueue.QueueAction((MyAction <uint, string, MyAction <DSLoadResult, string, IMessage> >)DataCacheSystem.Instance.Load,
msg.DsMsgId,
msg.Key,
(ret, error, data) =>
{
//这段代码必须保证线程安全，会在不同线程调用！！！
var reply = NLRep_Load.CreateBuilder();
reply.SetDsMsgId(msg.DsMsgId);
reply.SetKey(msg.Key);
if (ret == DSLoadResult.Success)
{
reply.SetResult(NLRep_Load.Types.LoadResult.Success);
reply.SetData(ByteString.Unsafe.FromBytes(channel_.Encode(data)));
}
else if (ret == DSLoadResult.Undone)
{
reply.SetResult(NLRep_Load.Types.LoadResult.Undone);
reply.SetData(ByteString.Unsafe.FromBytes(channel_.Encode(data)));
}
else if (ret == DSLoadResult.NotFound)
{
reply.SetResult(NLRep_Load.Types.LoadResult.NotFound);
reply.SetError(error);
}
else
{
reply.SetResult(NLRep_Load.Types.LoadResult.Error);
reply.SetError(error);
}
NLRep_Load replyData = reply.Build();
channel.Send(replyData);
LogSys.Log(LOG_TYPE.INFO, "Load data finished. msgId:({0}) key:({1}) result:({2}) ", msg.DsMsgId, msg.Key, ret);
});
}
catch (Exception e)
{
var errorReply = NLRep_Load.CreateBuilder();
errorReply.SetResult(NLRep_Load.Types.LoadResult.Error);
errorReply.SetError(e.Message);
channel.Send(errorReply.Build());
LogSys.Log(LOG_TYPE.ERROR, "DataStore load data failed. msgId:({0}) key:({1}) seq:({2}) error:({3} detail:{4})",
msg.DsMsgId, msg.Key, seq, e.Message, e.StackTrace);
}
}
