TGo4Queue.h

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// $Id: TGo4Queue.h 888 2012-11-11 18:34:35Z linev $
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum f�r Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#ifndef TGO4QUEUE_H
#define TGO4QUEUE_H

#include "TNamed.h"

class TCondition;
class TList;
class TMutex;

class TGo4Queue : public TNamed {
   public:
      TGo4Queue(const char* name = 0);

      virtual ~TGo4Queue();

      virtual void Clear(Option_t* opt="");

      virtual void Wake();

      Bool_t IsEmpty();

      Int_t GetEntries() const { return fiEntries; }

      void SetMaxEntries(Int_t max) { fiMaxEntries = max; }

   protected:
      TObject* Next();
      TObject* Wait();
      void Add(TObject* ob);

   private:
      TMutex* fxMutex;           
      TCondition* fxCondition;   
      TList* fxList;             
      Int_t fiEntries;           
      Int_t fiMaxEntries;        
      Bool_t fbWakeUpCall;       
};

#endif //TGO4QUEUE_H