kprocctrl.h

/* This file is part of the KDE libraries
    Copyright (C) 1997 Christian Czezakte (e9025461@student.tuwien.ac.at)
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/
 
#ifndef __KPROCCTRL_H__
#define __KPROCCTRL_H__
 
#include <tqvaluelist.h>
 
#include "kprocess.h"
 
class TQSocketNotifier;

class TDECORE_EXPORT TDEProcessController : public TQObject
{
  TQ_OBJECT
 
public:
  static void ref();

  static void deref();

  static TDEProcessController *theTDEProcessController; // kde4: rename: instance

  static void theSigCHLDHandler(int signal); // KDE4: private

  bool waitForProcessExit(int timeout);

  void unscheduleCheck();

  void rescheduleCheck();
 
  /*
   * Obtain the file descriptor TDEProcessController uses to get notified
   * about process exits. select() or poll() on it if you create a custom
   * event loop that needs to act upon SIGCHLD.
   * @return the file descriptor of the reading end of the notification pipe
   * @since 3.2
   */
  int notifierFd() const;

  void addTDEProcess( TDEProcess* );
  void removeTDEProcess( TDEProcess* );
  void addProcess( int pid );
 
private slots:
  void slotDoHousekeeping();
 
private:
  friend class I_just_love_gcc;
 
  int fd[2];
  bool needcheck;
  TQSocketNotifier *notifier;
  TQValueList<TDEProcess*> kProcessList;
  TQValueList<int> unixProcessList;
 
  static void setupHandlers();
  static void resetHandlers();
  static struct sigaction oldChildHandlerData;
  static bool handlerSet;
 
  static int refCount;
 
  // Disallow instantiation
  TDEProcessController();
  ~TDEProcessController();
 
  // Disallow assignment and copy-construction
  TDEProcessController( const TDEProcessController& );
  TDEProcessController& operator= ( const TDEProcessController& );
};
 
 
 
#endif