[ROOT] TRint::Run return and QuitOpt()

From: Mark Messier (messier@huhepl.harvard.edu)
Date: Fri Jun 01 2001 - 19:47:17 MEST 

Hello,

I was wondering if it would be possible to change the behavior of
TRint::Run(Bool_t retrn) when retrn=kTRUE and the TRint object was created
with the "-q" option so that TApplication::QuitOpt() is true. Right now
the result is that under these conditions a call to:

TRint::Run(kTRUE)

will exit the program via exit(0), which means that objects still
in existence will not be deleted before exiting the program. Please see
the example program below. I am using ROOT 3.01/03, 25 May 2001.

Specifically, the change I would like is in the following lines of code in
TRint.cxx:

void TRint::Run(Bool_t retrn)
{
...
//     if (QuitOpt())
//         Terminate(0);
// Changed to:
//
     if (QuitOpt()) {
	if (retrn == kTRUE) return
        Terminate(0);
     }
//
// And likewise a few lines down prior to Terminate(0)
//
}

I'll attach a simple test program which demonstrates this behavior:

//=== begin test program
#include <iostream>
#include "TROOT.h"
#include "TRint.h"
class DeleteMe 
{
public:
  DeleteMe()  { cerr << "vvvvv Object Created vvvvv\n"; }
  ~DeleteMe() { cerr << "^^^^^ Object Deleted ^^^^^\n"; }
};
int main(int argc, char** argv) {
  TROOT troot("troot","troot");
  TRint* app = new TRint("app",&argc,argv,0,0,kTRUE);
  DeleteMe x;
  app->Run(kTRUE);
  return 0;
}
//=== end test program

heplminos2% g++ example.cxx `root-config --cflags --libs`
heplminos2% ./a.out
vvvvv Object Created vvvvv
root [0] .q
root [1] ^^^^^ Object Deleted ^^^^^
heplminos2% ./a.out -q
vvvvv Object Created vvvvv
root [0] 

Notice that the second case using the -q option has no message indicating
that the object x was deleted. However, I think these two cases should
behave identically.

Thank you,
Mark
========================================================================
Mark Messier                          e-mail: messier@huhepl.harvard.edu
Harvard University                  http://www.hepl.harvard.edu/~messier
42 Oxford Street                                     Tel. (617) 496-2361
Cambridge, MA 02138

This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:50:47 MET