Go4-Taskhandlerv4.04-2: Go4Queue/TGo4Queue.h Source File

00001 // $Id: TGo4Queue.h 478 2009-10-29 12:26:09Z linev $
00002 //-----------------------------------------------------------------------
00003 //       The GSI Online Offline Object Oriented (Go4) Project
00004 //         Experiment Data Processing at EE department, GSI
00005 //-----------------------------------------------------------------------
00006 // Copyright (C) 2000- GSI Helmholtzzentrum f�r Schwerionenforschung GmbH
00007 //                     Planckstr. 1, 64291 Darmstadt, Germany
00008 // Contact:            http://go4.gsi.de
00009 //-----------------------------------------------------------------------
00010 // This software can be used under the license agreements as stated
00011 // in Go4License.txt file which is part of the distribution.
00012 //-----------------------------------------------------------------------
00013 
00014 #ifndef TGO4QUEUE_H
00015 #define TGO4QUEUE_H
00016 
00017 #include "TNamed.h"
00018 
00019 class TCondition;
00020 class TList;
00021 class TMutex;
00022 
00031 class TGo4Queue : public TNamed {
00032    public:
00033       TGo4Queue();
00034 
00035       TGo4Queue(const char* name);
00036 
00037       virtual ~TGo4Queue();
00038 
00039       virtual void Clear(Option_t* opt="");
00040 
00041       virtual void Wake();
00042 
00043       Bool_t IsEmpty();
00044 
00045 
00046       Int_t GetEntries() const { return fiEntries; }
00047 
00048       void SetMaxEntries(Int_t max) { fiMaxEntries = max; }
00049 
00050    protected:
00051       TObject* Next();
00052       TObject* Wait();
00053       void Add(TObject* ob);
00054 
00055 
00056 
00057    private:
00058       TMutex* fxMutex;           
00059       TCondition* fxCondition;   
00060       TList* fxList;             
00061       Int_t fiEntries;           
00062       Int_t fiMaxEntries;        
00063       Bool_t fbWakeUpCall;       
00064 };
00065 
00066 #endif //TGO4QUEUE_H