Line data    Source code

       1             : #ifndef ALIGENEXTEXEC_H
       2             : #define ALIGENEXTEXEC_H
       3             : 
       4             : /* Copyright(c) 1998-2015, ALICE Experiment at CERN, All rights reserved. *
       5             :  * See cxx source for full Copyright notice                               */
       6             : 
       7             : // Event generator that can runs an external executable
       8             : // to produce events which are read as HepMC.
       9             : // 
      10             : // Author: Jochen Klein <Jochen.Klein@cern.ch>
      11             : 
      12             : #include "AliGenExtFile.h"
      13             : 
      14             : class AliGenReader;
      15             : class TTree;
      16             : 
      17             : class AliGenExtExec : public AliGenExtFile
      18             : {
      19             : public:
      20             :   AliGenExtExec(const TString &scriptpath = "./gen.sh");
      21             :   AliGenExtExec(Int_t npart, const TString &scriptpath = "./gen.sh");
      22             : 
      23             :   virtual ~AliGenExtExec();
      24             : 
      25             :   enum GenExtMode_t {
      26             :     kFIFO = 0,
      27             :     kAlternatingFiles
      28             :   };
      29             : 
      30             :   enum GenExtInput_t {
      31             :     kHepMC = 0,
      32             :     kEPOSroot
      33             :   };
      34             : 
      35             :   virtual void SetPathScript(const TString &path = "./gen.sh");
      36             :   virtual void SetPathFIFO(const TString &path = "gen.hepmc");
      37             :   virtual void SetPathFile1(const TString &path = "gen1.root");
      38             :   virtual void SetPathFile2(const TString &path = "gen2.root");
      39           0 :   virtual void SetMode(GenExtMode_t mode) { fMode = mode; }
      40           0 :   virtual void SetInput(GenExtInput_t input) { fInput = input; }
      41             : 
      42             :   virtual void Init();
      43             :   virtual void Generate();
      44             : 
      45             : protected:
      46             :   Bool_t StartGen();
      47             :   Bool_t StopGen();
      48             : 
      49             :   // configuration settings
      50             :   TString fPathScript;           // path to executable script
      51             :   TString fPathFIFO;             // path used for FIFO
      52             :   TString fPathFile1;            // path used for file 1
      53             :   TString fPathFile2;            // path used for file 2
      54             :   Int_t fEventNumberInFileMax;   // max number of events in file
      55             :   GenExtMode_t fMode;            // mode for external generator
      56             :   GenExtInput_t fInput;          // input type to choose reader
      57             : 
      58             :   // transient variables
      59             :   Int_t fPID;                    //! PID of running generator
      60             :   Int_t fFileConnected;          //! which file is connected (for alternating files)
      61             :   Int_t fEventNumberInFile;      //! event number in file
      62             : 
      63             : private:
      64             :   AliGenExtExec(const AliGenExtExec &ext);              // not implemented
      65             :   AliGenExtExec & operator=(const AliGenExtExec & rhs); // not implemented
      66             : 
      67           6 :   ClassDef(AliGenExtExec, 2)
      68             : };
      69             : 
      70             : #endif