public AsyncSendBufferManager(int bufferSize)
{
m_dynamicBufferManager = new DynamicBufferManager(bufferSize);
m_sendBufferList = new List<SendBufferPacket>();
m_sendBufferPacket.Offset = 0;
m_sendBufferPacket.Count = 0;
}
///// <summary>
///// 收集監視器數據之命令統計開始
///// </summary>
//private void CommandStatStart()
//{
// //命令當前并發數
// ServerStatistics.Concurrent_Commands++;
// //命令最高并發數
// if (ServerStatistics.MaxConcurrent_Commands < ServerStatistics.Concurrent_Commands)
// ServerStatistics.MaxConcurrent_Commands = ServerStatistics.Concurrent_Commands;
//}
///// <summary>
///// 收集監視器數據之命令統計結束
///// </summary>
//private void CommandStatEnd(long ElapsedMilliseconds)
//{
// //命令當前并發數
// ServerStatistics.Concurrent_Commands--;
// //命令當前執行時長(ms)
// ServerStatistics.DurationTime_Command = (int)ElapsedMilliseconds;
// //命令最大執行時長(ms)
// if (ServerStatistics.MaxDurationTime_Command < ServerStatistics.DurationTime_Command)
// ServerStatistics.MaxDurationTime_Command = ServerStatistics.DurationTime_Command;
//}
/// <summary>
/// 掃描所有可以發送的完整包
/// </summary>
/// <param name="userToken"></param>
/// <param name="receiveBuffer"></param>
/// <returns></returns>
private bool PreparePackages(SocketUserToken userToken, DynamicBufferManager receiveBuffer)
{
try
{
//error = false;
//Test
//System.Diagnostics.Debug.WriteLine("調用:PreparePackages...");
//System.Text.Encoding.UTF8.GetString(LxTcpServer.Protocol.ParseProtocol.GetByteBuffer(receiveBuffer.Buffer, 0, receiveBuffer.DataCount)).TrimEnd('\0')
bool CommandResult = false;
Stopwatch sw = new Stopwatch();
//判斷緩存中剩餘的數據是否足夠計算完整包
if (receiveBuffer.DataCount - m_packageOffset < MSGINFOHEAD.BodyLength)
{
if (m_readyPackage > 0)
{
//已經收集到所有可發送的完整包
//m_doProcessCommand = true;
//return true;
userToken.FirstPacket = true;
m_packageOffset = 0;
//收集監視器數據之命令統計開始
ServerStatistics.CommandStatStart();
//開始計時
sw.Start();
//開始發送
CommandResult = ProcessCommand(userToken);
//結束計時
sw.Stop();
//收集監視器數據之命令統計結束
ServerStatistics.CommandStatEnd(sw.ElapsedMilliseconds);
//重置計時器
sw.Reset();
return CommandResult;
}
else
{
//繼續收
return true;
}
}
int DataLen = 0;
// #Mark 5# <-不要刪除這個標記!!
//1.包體長度(16進制轉10進制)
byte[] DataLenBuffer = ParseProtocol.GetByteBuffer(receiveBuffer.Buffer, m_packageOffset, MSGINFOHEAD.BodyLength);
try
{
DataLen = ParseProtocol.Convert16To10(Encoding.UTF8.GetString(DataLenBuffer));
if (DataLen == 0)
{
//如果類別不是S(簽名為空),就說明數據錯誤.
if (Encoding.UTF8.GetString(receiveBuffer.Buffer, m_packageOffset + MSGINFOHEAD.BodyLength, 1) != "S")
{
//視為異常
DataLen = -1;
}
}
}
catch
{
//異常
DataLen = -1;
}
//如果是用戶修改簽名為空白，此處就是0.
//if (DataLen == 0)
if (DataLen < 0)
{
//if (userToken.BindingUser != null && userToken.ConnectSocket != null && userToken.ConnectSocket.Connected)
//{
// #region " 沒找到出錯原因,暫時特殊處理一下 "
// try
// {
// if (m_packageOffset == 1026 && !userToken.FirstPacket && receiveBuffer.DataCount == 1056)
// {
// //先針對1026 - 1056的錯誤特別處理一下
// //錯誤描述:客戶端:D026533信息異常,包頭: 的長度小於0. PackageOffset:1026.FirstPackage:False.
// // 完整信息(Bytes:1056):00016D026533
// //修正 PackageOffset 和 FirstPackage
// m_packageOffset = 0;
// userToken.FirstPacket = true;
// DataLen = 1;
// string msg = Encoding.UTF8.GetString(receiveBuffer.Buffer, 0, receiveBuffer.DataCount);
// LogHelper.WriteLog("BaseProcessor.PreparePackages", "發生1026-1056錯誤,數據已修正." + "\r\n完整信息(緩存Bytes:" + receiveBuffer.DataCount.ToString() + ",取出數據實際長度:" + msg.Length.ToString() + "):" + msg);
// }
// else if (m_packageOffset == 5121 && !userToken.FirstPacket && receiveBuffer.DataCount == 5131)
// {
// //先針對5121 - 5131的錯誤特別處理一下 ==>> 這個問題已經解了:因為未對簽名為空的情況進行處理,數據總長應該加上尾包長度,再去移除) <<==
// //錯誤描述:客戶端:D037198信息異常,包頭: 的長度小於0. PackageOffset:5121.FirstPackage:False.
// // 完整信息(Bytes:5131):100016D037198
// //將第一位無效數據移除
// receiveBuffer.Clear(1);
// //修正 PackageOffset 和 FirstPackage
// m_packageOffset = 0;
// userToken.FirstPacket = true;
// DataLen = 1;
// string msg = Encoding.UTF8.GetString(receiveBuffer.Buffer, 0, receiveBuffer.DataCount);
// LogHelper.WriteLog("BaseProcessor.PreparePackages", "發生5121-5131錯誤,數據已修正." + "\r\n完整信息(緩存Bytes:" + receiveBuffer.DataCount.ToString() + ",取出數據實際長度:" + msg.Length.ToString() + "):" + msg);
// }
// }
// catch(Exception ex)
// {
// LogHelper.WriteLog("BaseProcessor.PreparePackages", "嘗試修正數據時出錯:" + ex.Message);
// return false;
// }
// #endregion
//}
//else
//{
if (userToken.BindingUser != null)
LogHelper.WriteLog("BaseProcessor.PreparePackages", "客戶端:" + userToken.BindingUser.ID + "信息異常,包頭:" + Encoding.UTF8.GetString(DataLenBuffer) + "的長度小於0. PackageOffset:" + m_packageOffset.ToString() + ".FirstPackage:" + userToken.FirstPacket.ToString() + ".\r\n完整信息(Bytes:" + receiveBuffer.DataCount.ToString() + "):" + Encoding.UTF8.GetString(receiveBuffer.Buffer, 0, receiveBuffer.DataCount)); //.TrimEnd('\0')
else
LogHelper.WriteLog("BaseProcessor.PreparePackages", "UserToken.BindingUser為空.信息異常,包頭:" + Encoding.UTF8.GetString(DataLenBuffer) + "的長度小於0.");//.TrimEnd('\0')
return false;
//}
}
//$Mark 1$ <-不要刪除這個標記!!
//包頭+包體+包尾長度比當前已經收到的長度大.(需要加上包頭和包尾的長度)
if (ParseProtocol.GetHeadPacketLength(userToken.FirstPacket) + DataLen + MSGINFOEND.EofLength + m_packageOffset > receiveBuffer.DataCount)
{
if (m_readyPackage > 0)
{
//已經收集到所有可發送的完整包
//m_doProcessCommand = true;
//return true;
userToken.FirstPacket = true;
m_packageOffset = 0;
//收集監視器數據之命令統計開始
ServerStatistics.CommandStatStart();
//開始計時
sw.Start();
//開始發送
CommandResult = ProcessCommand(userToken);
//結束計時
sw.Stop();
//收集監視器數據之命令統計結束
ServerStatistics.CommandStatEnd(sw.ElapsedMilliseconds);
//重置計時器
sw.Reset();
return CommandResult;
}
else
{
//如果有續包就讀取完成再解包
//====================================================================================
//====== 以下是分析為什麼偶爾出現心跳包解包錯誤,而m_packageOffset永遠是6的問題 =======
//心跳標準長1024+1+1,如果此時receiveBuffer.DataCount沒收足夠(假設只收了1024).就會運行到這里.
//此時如果把FirstPacket標記為false并再次接收,就會進入 #Mark 1# 處.
//按下來m_packageOffset會被賦值為4+1+1,那麼tailData必然不是1,就進入 #Mark 2#
//因為之前一個完整包都沒收到,所以m_readyPackage是0,必然進入 #Mark 3#
//接下來按FirstPacket為false計算數據包標準長并與receiveBuffer.DataCount比效后,必然進入 #Mark 4#
//至此,m_packageOffset變成了6,執行 #Mark 5# 時就報錯了.
//====================================================================================
//userToken.FirstPacket = false;
//解決方案:
if (ParseProtocol.GetHeadPacketLength(userToken.FirstPacket) + DataLen + MSGINFOEND.EofLength > receiveBuffer.DataCount)
{
//目前收到的包還不夠一個標準包長,那就視為是首包
userToken.FirstPacket = true;
}
else
{
//目前收到的包超過了一個標準包長,那就視為是續包
userToken.FirstPacket = false;
}
return true;
}
}
else
{
// #Mark 1# <-不要刪除這個標記!!
//收取完整,開始分析是否是完全數據(尾包為1)
//記錄下一個包的起始位置
m_packageOffset += ParseProtocol.GetHeadPacketLength(userToken.FirstPacket) + DataLen + MSGINFOEND.EofLength;
string tailData = Encoding.UTF8.GetString(userToken.ReceiveBuffer.Buffer, m_packageOffset - MSGINFOEND.EofLength, MSGINFOEND.EofLength).TrimEnd('\0');
if (tailData == "1")
{
//當前包收取結束
//Test
//System.Diagnostics.Debug.WriteLine("發出:" + m_packageLength.ToString());
//System.Diagnostics.Debug.WriteLine("Buffer Total:" + receiveBuffer.DataCount.ToString());
//收好了(至少有一個完整的包可以發送),開始解包并處理命令
userToken.FirstPacket = true;
//累計待發送的包個數(由ProcessCommand清除)
m_readyPackage++;
//後面達不到最小包長度就放棄掃描
DataLen = 1;
if (ParseProtocol.GetHeadPacketLength(userToken.FirstPacket) + DataLen + MSGINFOEND.EofLength + m_packageOffset > receiveBuffer.DataCount)
{
//m_doProcessCommand = true;
m_packageOffset = 0;
//收集監視器數據之命令統計開始
ServerStatistics.CommandStatStart();
//開始計時
sw.Start();
//開始發送
CommandResult = ProcessCommand(userToken);
//結束計時
sw.Stop();
//收集監視器數據之命令統計結束
ServerStatistics.CommandStatEnd(sw.ElapsedMilliseconds);
//重置計時器
sw.Reset();
return CommandResult;
}
else
{
//Test
//LogHelper.WriteLog("BaseProcessor.PreparePackages", "尾包值為1(位置:" + (m_packageOffset - 1).ToString() + "),FirstPacket:" + userToken.FirstPacket.ToString() + ",下次將從" + m_packageOffset.ToString() + "開始檢查首包長度.\r\n完整信息(Bytes:" + receiveBuffer.DataCount.ToString() + "):" + Encoding.UTF8.GetString(receiveBuffer.Buffer, 0, receiveBuffer.DataCount).TrimEnd('\0'));
//再掃描一次(不用再去接收)
return PreparePackages(userToken, receiveBuffer);
}
}
else
{
// #Mark 2# <-不要刪除這個標記!!
//接下來的一個包一定是續包
userToken.FirstPacket = false;
if (m_readyPackage > 0)
{
//雖然是續包，已經收集到所有可發送的完整包，剩下來的數據0位置就是首包
userToken.FirstPacket = true;//<-- 2016/04/20 19:51 被1029問題坑得發瘋的時候加的,之前這句沒加...
//=============================== 以下是1029錯誤的故事 ===============================
//如果這里不賦為true，那麼m_packageOffset被置0后執行ProcessCommand,完成后執行到 #Mark 1#，
//然后m_packageOffset會被設置為1029(4+1024+1), 隨後來到 #Mark 2#, 最後 #Mark 3#. 無論此處走哪邊,
//都會重新進入PreparePackages,並且此時m_packageOffset為1029,userToken.FirstPacket為false.
//但Buffer剩下的卻是一個以首包開始完整數據,結果崩壞!
//====================================================================================
m_packageOffset = 0;
//收集監視器數據之命令統計開始
ServerStatistics.CommandStatStart();
//開始計時
sw.Start();
//開始發送
CommandResult = ProcessCommand(userToken);
//結束計時
sw.Stop();
//收集監視器數據之命令統計結束
ServerStatistics.CommandStatEnd(sw.ElapsedMilliseconds);
//重置計時器
sw.Reset();
return CommandResult;
}
else
{
// #Mark 3# <-不要刪除這個標記!!
//如果剩餘已接收數據還可以檢查一次就直接比較
DataLen = 1;
if (ParseProtocol.GetHeadPacketLength(userToken.FirstPacket) + DataLen + MSGINFOEND.EofLength + m_packageOffset <= receiveBuffer.DataCount)
{
// #Mark 4# <-不要刪除這個標記!!
return PreparePackages(userToken, receiveBuffer);
}
else
{
//繼續接收數據(有效位置就從m_packageOffset開始)
return true;
}
}
}
}
}
catch
{
//error = true;
//主動關閉連接
//userToken.Closing = true;
return false;
}
}
public SocketUserToken(int receiveBufferSize)
{
m_connectSocket = null;
m_asyncSendAgent = null;
m_receiveEventArgs = new SocketAsyncEventArgs();
m_receiveEventArgs.UserToken = this;
m_asyncReceiveBuffer = new byte[receiveBufferSize];
m_receiveEventArgs.SetBuffer(m_asyncReceiveBuffer, 0, m_asyncReceiveBuffer.Length);
m_sendEventArgs = new SocketAsyncEventArgs();
m_sendEventArgs.UserToken = this;
m_receiveBuffer = new DynamicBufferManager(ServerConst.InitBufferSize);
m_sendBuffer = new AsyncSendBufferManager(ServerConst.InitBufferSize);
//存放接收到的待處理的數據
//m_receiveQueue = Queue.Synchronized(new Queue());
//0表示沒有續包
//m_restPacketLength = 0;
//默認為首包
m_firstPacket = true;
m_user = new Core.User();
m_closing = false;
}