tjprocess.h

/***************************************************************************
                          tjprocess.h  -  description
                             -------------------
    begin                : Sat May 5 2007
    copyright            : (C) 2001 by Thies H. Jochimsen
    email                : jochimse@cns.mpg.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef TJPROCESS_H
#define TJPROCESS_H

#include <tjutils/tjstring.h>
#include <tjutils/tjarray.h>



// for debugging
class ProcessComponent {
 public:
  static const char* get_compName();
};



class Process {

 public:

  Process() {reset();}

  bool start(const STD_string& cmdline, bool block_till_finished=false, bool log_std_streams=true);

  bool finished(int& proc_return_value, STD_string& stdout_result, STD_string& stderr_result, bool block_till_finished=false);

  bool finished(int& proc_return_value, bool block_till_finished=false);

  bool kill(const svector& extra_kill=svector());

  static int system(const STD_string& cmdline, STD_string& stdout_result, STD_string& stderr_result);


  // Comparison operators for list of processes with STL replacement
  bool operator == (const Process& op) const {return pid==op.pid;}
  bool operator <  (const Process& op) const {return pid!=op.pid;}
  bool operator != (const Process& op) const {return !(*this==op);}

 private:

  static bool read_pipe(int fd, STD_string& result);
  void reset() {pid=0; stdout_child=-1; stderr_child=-1;}

  int pid;
  int stdout_child;
  int stderr_child;
};



#endif

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