Go4TaskHandler/TGo4Task.h

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// $Id: TGo4Task.h 478 2009-10-29 12:26:09Z linev $
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum für 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 TGO4TASK_H
#define TGO4TASK_H

#include "TGo4ThreadManager.h"
#include "TGo4CommandReceiver.h"
#include "Go4EmergencyCommands.h"

#include "TString.h"

class TMutex;
class TGo4TaskOwner;
class TGo4Slave;
class TGo4Master;
class TGo4BufferQueue;
class TGo4ObjectQueue;
class TGo4TaskHandler;
class TGo4TaskHandlerCommandList;
class TGo4CommandProtoList;
class TGo4Command;
class TGo4Status;
class TGo4TaskStatus;

class TGo4Task : public TGo4ThreadManager, public TGo4CommandReceiver {

public:
    friend class TGo4LocalCommandRunnable; // access to command queue
    friend class TGo4Slave; // access to UpdateStatus
    friend class TGo4TaskOwner; // set workisstopped flag

    TGo4Task(const char* name, Bool_t blockingmode,
                               Bool_t autostart=kFALSE,
                               Bool_t autocreate=kTRUE,
                               Bool_t ismaster=kFALSE);

    virtual ~TGo4Task();

    virtual void Start();

    virtual void Stop();

    virtual void Quit();

    virtual void KillMain();

    virtual void RestartMain();

    virtual void Terminate (Bool_t termapp=kTRUE);

    virtual void TerminateFast ();

    virtual void ExecuteString(const char* command);

    Bool_t IsMaster() { return fbCommandMaster; }

    void SetOwner(TGo4TaskOwner* owner);

    virtual TGo4TaskHandler* GetTaskHandler();

    virtual TGo4BufferQueue* GetCommandQueue(const char* task=0);

    virtual TGo4BufferQueue* GetStatusQueue(const char* task=0);

    virtual TGo4BufferQueue* GetDataQueue(const char* task=0);

    void AddUserCommand(TGo4Command* com);

    void AddUserCommandList(TGo4CommandProtoList * comlist);

    TGo4Status* NextStatus(Bool_t wait=kTRUE);

    TObject * NextObject(Bool_t wait=kTRUE);

    virtual TGo4Command* NextCommand();

    void SendObject(TObject * obj, const char* receiver=0);

    virtual void SendStatus(TGo4Status * stat, const char* receiver=0);

    virtual void SendStatusBuffer();

    TMutex* GetStatusBufferMutex(){return fxStatusMutex;}

    void SendStatusMessage(Int_t level, Bool_t printout, const char* text, ...);

    void UpdateStatusBuffer();

    virtual Int_t Initialization();

    virtual TGo4TaskStatus* CreateStatus();

    Bool_t SubmitCommand(const char* name);

    Bool_t SubmitEmergencyCommand(Go4EmergencyCommand_t val);

    Bool_t SubmitEmergencyData(Go4EmergencyCommand_t val, const char* receiver=0);


    Bool_t SubmitLocalCommand(TGo4Command* com);

    Bool_t SubmitCommand(TGo4Command* com);

    TGo4Command* MakeCommand(const char* name);

    void WakeCommandQueue(Int_t id=0);

    virtual Int_t StartWorkThreads();

    virtual Int_t StopWorkThreads();

    Bool_t IsWorkStopped(){return fbWorkIsStopped;}

    virtual void LockAll();

    virtual void UnLockAll();


    virtual void GetStatus();

    const char* GetCommanderName() const { return fxCommanderName.Data(); }

    TGo4Master* GetMaster() { return fxMaster; }

    TGo4Slave* GetSlave() { return fxSlave; }

    void SendStopBuffers(const char* taskname=0);

    TBuffer* GetAbortBuffer(){return fxAbortBuffer;}

    static Int_t Get_fgiTERMID();

  protected:

    virtual TGo4TaskHandlerCommandList*  CreateCommandList();

    TGo4TaskHandlerCommandList * GetPrototype();

    virtual void UpdateStatus(TGo4TaskStatus* state);

    TGo4ObjectQueue* GetLocalCommandQueue() { return fxLocalCommandQueue; }

    void SetMaster(Bool_t on=kTRUE) { fbCommandMaster=on; }

    void SetWorkIsStopped(Bool_t on) { fbWorkIsStopped=on; }

    TMutex * fxStatusMutex; 

    TBuffer* fxStatusBuffer; 

  private:

    void SetMaster(TGo4Master* m);

    void SetSlave(TGo4Slave* s);

    TGo4TaskHandlerCommandList * fxCommandPrototype; 

    TGo4ObjectQueue* fxLocalCommandQueue; 

    Bool_t fbCommandMaster;

    TString fxCommanderName;

    TGo4Master * fxMaster; 

    TGo4Slave * fxSlave; 

    TGo4TaskOwner * fxOwner;

    Bool_t fbWorkIsStopped;


    TBuffer* fxStopBuffer; 

    TBuffer* fxQuitBuffer; 

    TBuffer* fxAbortBuffer; 

    static const Int_t fgiTERMID;


  ClassDef(TGo4Task,1)
};

#endif //TGO4TASK_H

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