The header file

[purschke@phoncsa]$ cat p_ex1.h

#ifndef __P_EX1_H__

#define __P_EX1_H__

#include <Event.h>

int process_event (Event *e); //++CINT

#endif /* __P_EX1_H__ */

By making the process_event routine cint-visible, we give ourselves the possibility to call it “by hand” for debugging purposes.

This what I typed yesterday:

CINT/ROOT C/C++ Interpreter version 5.14.10, Jul 20 1999

Type ? for help. Commands must be C++ statements.

Enclose multiple statements between { }.

root [0] gSystem->Load("libp_ex1.so");

root [1] Eventiterator *xx = new fileEventiterator("test.evt");

root [2] Event *evt = xx->getNextEvent();

root [3] evt->identify();

-- Event 1 Run: 1331 length: 68 frames: 1 type: 1 (Data Event)

root [4] process_event(evt);

root [5] delete evt;

root [6]

Then, without recompiling or changing anything, you can run it as a background thread.