/// <summary>
/// 返回null表示发生了网络错误，或者应用服务器已经关闭。
/// </summary>
/// <param name="gkey"></param>
/// <param name="state"></param>
/// <returns></returns>
public Reduce ReduceWaitLater(GlobalTableKey gkey, int state)
{
try
{
lock (this)
{
if (global::Zeze.Util.Time.NowUnixMillis - LastErrorTime < ForbitPeriod)
{
return(null);
}
}
AsyncSocket peer = GlobalCacheManager.Instance.Server.GetSocket(SessionId);
if (null != peer)
{
Reduce reduce = new Reduce(gkey, state);
reduce.SendForWait(peer, 10000);
return(reduce);
}
}
catch (Exception ex)
{
// 这里的异常只应该是网络发送异常。
logger.Error(ex, "ReduceWaitLater Exception {0}", gkey);
}
SetError();
return(null);
}
public int Reduce(GlobalTableKey gkey, int state)
{
try
{
Reduce reduce = ReduceWaitLater(gkey, state);
if (null != reduce)
{
reduce.Future.Task.Wait();
// 如果rpc返回错误的值，外面能处理。
return(reduce.Result.State);
}
return(GlobalCacheManager.StateReduceNetError);
}
catch (RpcTimeoutException timeoutex)
{
// 等待超时，应该报告错误。
logger.Error(timeoutex, "Reduce RpcTimeoutException {0} target={1}", state, SessionId);
return(GlobalCacheManager.StateReduceRpcTimeout);
}
catch (Exception ex)
{
logger.Error(ex, "Reduce Exception {0} target={1}", state, SessionId);
return(GlobalCacheManager.StateReduceException);
}
}
public override void Decode(ByteBuffer bb)
{
if (null == GlobalTableKey)
{
GlobalTableKey = new GlobalTableKey();
}
GlobalTableKey.Decode(bb);
State = bb.ReadInt();
}
private void Release(CacheHolder holder, GlobalTableKey gkey)
{
CacheState cs = global.GetOrAdd(gkey, (tabkeKeyNotUsed) => new CacheState());
lock (cs)
{
if (cs.Modify == holder)
{
cs.Modify = null;
}
cs.Share.Remove(holder); // always try remove
if (cs.Modify == null &&
cs.Share.Count == 0 &&
cs.AcquireStatePending == StateInvalid)
{
// 安全的从global中删除，没有并发问题。
cs.AcquireStatePending = StateRemoved;
global.TryRemove(gkey, out var _);
}
holder.Acquired.TryRemove(gkey, out var _);
}
}
public Reduce(GlobalTableKey gkey, int state)
{
Argument.GlobalTableKey = gkey;
Argument.State = state;
}
public Acquire(GlobalTableKey gkey, int state)
{
Argument.GlobalTableKey = gkey;
Argument.State = state;
}
public override string ToString()
{
return(GlobalTableKey.ToString() + ":" + State);
}
public override void Encode(ByteBuffer bb)
{
GlobalTableKey.Encode(bb);
bb.WriteInt(State);
}
