ROOT_528-00b_version: include/redirguard.h Source File

00001 // @(#)root/proof:$Id: redirguard.h 33259 2010-04-28 06:54:00Z ganis $
00002 // Author: G. Ganis, Mar 2010
00003 
00004 /*************************************************************************
00005  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
00006  * All rights reserved.                                                  *
00007  *                                                                       *
00008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
00009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
00010  *************************************************************************/
00011 
00012 #ifndef PQ2_redirguard
00013 #define PQ2_redirguard
00014 
00015 //////////////////////////////////////////////////////////////////////////
00016 //                                                                      //
00017 // redirguard                                                        //
00018 //                                                                      //
00019 // Auxilliary class used in PQ2 functions to redirect the logs          //
00020 //                                                                      //
00021 //////////////////////////////////////////////////////////////////////////
00022 
00023 #include "TSystem.h"
00024 
00025 class redirguard {
00026 private:
00027    RedirectHandle_t fRH;
00028    Bool_t           fDoIt;
00029 public:
00030    redirguard(const char *fn, const char *mode = "a", Int_t doit = 0)
00031        { fDoIt = (doit == 0) ? kTRUE : kFALSE; 
00032          if (fDoIt) gSystem->RedirectOutput(fn, mode, &fRH); }
00033    ~redirguard() { if (fDoIt) gSystem->RedirectOutput(0, 0, &fRH); }
00034 };
00035 #endif