Quickfix錯誤：System.AccessViolationException

我有一個quickfix .net應用程序。我正在使用.net/c++ version of quickfix Quickfix錯誤：System.AccessViolationException

有時我的應用程序拋出這個錯誤，我無法用try catch塊捕獲它。修復信息的長度約爲3000.我不會每次都遇到這個錯誤。這是事件日誌：

Framework版本：v4.0.30319說明：該進程被終止由於未處理的異常。異常信息： System.AccessViolationException堆棧：在 System.String..ctor（爲SByte *）在 QuickFix.Group.getField（QuickFix.StringField）維持在 FixApplication.onMessage（QuickFix44.MarketDataIncrementalRefresh， QuickFix.SessionID） QuickFix44.MessageCracker.crack（QuickFix.Message，QuickFix.SessionID）在QuickFix.MessageCracker.crack（QuickFix.Message，QuickFix.SessionID， QuickFix.BeginString）在 QuickFix.MessageCracker.crack（QuickFix.Message，QuickFix.SessionID ）
at FixApplication.fromApp（QuickFix.Message， QuickFix.SessionID）at .Application.fromApp（Application *， FIX.Message *，FIX.Sessio的NID *）

會拋出錯誤行：

public override void onMessage(QuickFix44.MarketDataIncrementalRefresh msg, SessionID sessionID) 
{ 
    try 
    { 

     var mdReqId = new MDReqID(); 
     if (msg.isSet(mdReqId)) 
     msg.get(mdReqId); 
     var noMdEntries = new NoMDEntries(); 
     if (msg.isSet(noMdEntries)) 
     msg.get(noMdEntries); 
     int noMdEntriesInt; 
     if (Int32.TryParse(noMdEntries.ToString(), out noMdEntriesInt)) 
     { 
     for (uint i = 1; i <= noMdEntriesInt; i++) 
     { 
      var group = new MarketDataIncrementalRefresh.NoMDEntries(); 
      Group repeatedData; 
      if (msg.isSet(noMdEntries)) 
      { 
      repeatedData = msg.getGroup(i, group); 
      var mdUpdateAction = new MDUpdateAction(); 
      if (repeatedData.isSetField(mdUpdateAction)) 
       repeatedData.getField(mdUpdateAction); 
      var mdEntryType = new MDEntryType(); 
      if (repeatedData.isSetField(mdEntryType)) 
       repeatedData.getField(mdEntryType); 

      var symbol = new Symbol(); 
      if (repeatedData.isSetField(symbol)) 
       repeatedData.getField(symbol); 
      var mdEntryPx = new MDEntryPx(); 
      if (repeatedData.isSetField(mdEntryPx)) 
       repeatedData.getField(mdEntryPx); 
      var mdEntrySize = new MDEntrySize(); 
      if (repeatedData.isSetField(mdEntrySize)) 
       repeatedData.getField(mdEntrySize); 
      var numberOfOrders = new NumberOfOrders(); 
      if (repeatedData.isSetField(numberOfOrders)) 
       repeatedData.getField(numberOfOrders); 

      var mdEntryPositionNo = new MDEntryPositionNo(); 
      if (repeatedData.isSetField(mdEntryPositionNo)) 
       repeatedData.getField(mdEntryPositionNo); 

      var quoteCondition = new QuoteCondition(); 
      if (repeatedData.isSetField(quoteCondition)) 
       repeatedData.getField(quoteCondition); 


      var sysSymbolId = 0; 
      var mdEntryId = new MDEntryID(); 
      if (repeatedData.isSetField(mdEntryId)) 
      { 
       repeatedData.getField(mdEntryId);//THIS LINE THROWS ERROR 
       string strMdEntryId = mdEntryId.getValue(); 

      } 
      //} 
      } 
     } 
     } 
    } 
    Functions.WriteDebugLog("OK"); 
    } 
    catch (Win32Exception e) 
    { 
    Functions.WriteSystemLog("Ex Msg:" + e.ToString() + " Fix Msg : " + msg.ToString()); 
    } 
    catch (Exception ex) 
    { 
    Functions.WriteSystemLog("Ex Msg:" + ex.ToString() + " Fix Msg : " + msg.ToString()); 
    } 

}

這是修復味精（你可以用這個在線工具對其進行分析：http://fixloganalyzer.com/）：

8 = FIX。 4.4 | 9 = 2254 | 35 = X | 34 = 21998 | 49 = * | 50 = * | 52 = 20140411-07：52：52.472 | 56 = ** | 262 = 1397202772472 | 268 = 42 | 279 = 1 | 278 = 25500 | 270 = 2.11636 | 271 = 3500000 | 276 = A | 290 = 1 | 279 = 1 | 278 = 25501 | 270 = 2.11626 | 271 = 2000000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 25502 | 270 = 2.11616 | 271 = 3000000 | 276 = A | 290 = 3 | 279 = 1 | 278 = 25504 | 270 = 2.11596 | 271 = 7000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 25510 | 270 = 2.11716 | 271 = 3500000 | 276 = A | 290 = 1 | 279 = 1 | 278 = 25512 | 270 = 2.11736 | 271 = 5000000 | 276 = A | 290 = 3 | 279 = 1 | 278 = 25513 | 270 = 2.11746 | 271 = 5000000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 25514 | 270 = 2.11756 | 271 = 6000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 204 | 270 = 1.38947 | 271 = 1500000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 600 | 270 = 0.93834 | 271 = 1000000 | 276 = A | 290 = 1 | 279 = 1 | 278 = 601 | 270 = 0.93833 | 271 = 1000000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 602 | 270 = 0.93832 | 271 = 1000000 | 276 = A | 290 = 3 | 279 = 1 | 278 = 603 | 270 = 0.93831 | 271 = 2000000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 604 | 270 = 0.93821 | 271 = 2000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 610 | 270 = 0.93839 | 271 = 1000000 | 276 = A | 290 = 1 | 279 = 1 | 278 = 611 | 270 = 0.9384 | 271 = 1500000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 613 | 270 = 0.93843 | 271 = 3500000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 614 | 270 = 0.93844 | 271 = 3000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 2200 | 270 = 1.09337 | 271 = 10000 00 | 276 = A | 290 = 1 | 279 = 1 | 278 = 2201 | 270 = 1.09336 | 271 = 1000000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 2203 | 270 = 1.09334 | 271 = 4000000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 2204 | 270 = 1.09333 | 271 = 1000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 2211 | 270 = 1.09344 | 271 = 2000000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 2214 | 270 = 1.09356 | 271 = 3000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 19600 | 270 = 1.08182 | 271 = 1000000 | 276 = A | 290 = 1 | 279 = 1 | 278 = 19601 | 270 = 1.08181 | 271 = 1000000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 19602 | 270 = 1.0818 | 271 = 1000000 | 276 = A | 290 = 3 | 279 = 1 | 278 = 19603 | 270 = 1.08179 | 271 = 1000000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 19604 | 270 = 1.08178 | 271 = 1000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 19612 | 270 = 1.08205 | 271 = 1000000 | 276 = A | 290 = 3 | 279 = 1 | 278 = 19613 | 270 = 1.08206 | 271 = 1000000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 19614 | 270 = 1.08216 | 271 = 2000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 23600 | 270 = 1.51927 | 271 = 2000000 | 276 = A | 290 = 1 | 279 = 1 | 278 = 23601 | 270 = 1.51926 | 271 = 1000000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 23602 | 270 = 1.51925 | 271 = 1000000 | 276 = A | 290 = 3 | 279 = 1 | 278 = 23603 | 270 = 1.51915 | 271 = 3000000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 23604 | 270 = 1.51905 | 271 = 4000000 | 276 = A | 290 = 5 | 279 = 1 | 278 = 23610 | 270 = 1.51945 | 271 = 1500000 | 276 = A | 290 = 1 | 279 = 1 | 278 = 23611 | 270 = 1.51946 | 271 = 1000000 | 276 = A | 290 = 2 | 279 = 1 | 278 = 23612 | 270 = 1。51947 | 271 = 1000000 | 276 = A | 290 = 3 | 279 = 1 | 278 = 23613 | 270 = 1.51957 | 271 = 2000000 | 276 = A | 290 = 4 | 279 = 1 | 278 = 23614 | 270 = 1.51967 | 271 = 3000000 | 276 = A | 290 = 5 | 10 = 142 |

來源

2014-04-11 Seçkin Durgay

機會是你正在試圖提取一'field'這是不存在於原始FIX消息。你可以粘貼你正在解析的FIX messgae，當發生錯誤時。 – DumbCoder

我已經粘貼了修復程序msg。 –

你是否嘗試調試？沒有人會通過你發佈的那個大FIX消息來拖網。 – DumbCoder

This看起來有關。

這是關於Group對象中的爭用條件，它在被引用之前獲取垃圾收集。

你想要的東西像gcnew每：.Net garbage collection

來源

2014-04-11 15:12:27 rupweb

我解決這個問題提出的要求清單。實施例：

public void RequisitarMarketData(List<String> _lstAtivo, String _mercado, String _id, SessionID sessionId) 
    { 
     QuickFix44.MarketDataRequest _marketDataRequest = new QuickFix44.MarketDataRequest(); 

     _marketDataRequest.set(new MDReqID(_id)); 

     _marketDataRequest.set(new SubscriptionRequestType('1')); 


     var anoMDEntryTypes = new QuickFix44.MarketDataRequest.NoMDEntryTypes(); 
     var amdEntryType_bid = new MDEntryType('2'); 


     anoMDEntryTypes.set(amdEntryType_bid); 
     _marketDataRequest.addGroup(anoMDEntryTypes); 

     _marketDataRequest.set(new MarketDepth(0)); 

     foreach (String _ativo in _lstAtivo) 
     { 
      var relatedSymbol = new QuickFix44.MarketDataRequest.NoRelatedSym(); 
      relatedSymbol.set(new Symbol(_ativo)); 
      _marketDataRequest.addGroup(relatedSymbol); 
     } 


     var relatedSymbola = new QuickFix44.MarketDataRequest.NoRelatedSym(); 
     relatedSymbola.set(new SecurityExchange(_mercado)); 
     _marketDataRequest.addGroup(relatedSymbola); 

     //Send message 
     Session.sendToTarget(_marketDataRequest, sessionId); 
    }`

來源

2017-10-20 10:36:19 Junio

Quickfix錯誤：System.AccessViolationException

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