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+/* 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+//
+// KPROCESSCONTROLLER -- A helper class for KProcess
+//
+// version 0.3.1, Jan 8th 1997
+//
+// (C) Christian Czezatke
+// e9025461@student.tuwien.ac.at
+// Ported by Holger Freyther
+//
+
+#ifndef __KPROCCTRL_H__
+#define __KPROCCTRL_H__
+
+#include <qvaluelist.h>
+#include <qtimer.h>
+
+#include "oprocess.h"
+
+class OProcessControllerPrivate;
+class QSocketNotifier;
+
+/**
+ * @short Used internally by @ref OProcess
+ * @internal
+ * @author Christian Czezakte <e9025461@student.tuwien.ac.at>
+ *
+ * A class for internal use by OProcess only. -- Exactly one instance
+ * of this class is generated by the first instance of OProcess that is
+ * created (a pointer to it gets stored in @ref theOProcessController ).
+ *
+ * This class takes care of the actual (UN*X) signal handling.
+*/
+class OProcessController : public QObject
+{
+ Q_OBJECT
+
+public:
+ OProcessController();
+ ~OProcessController();
+ //CC: WARNING! Destructor Not virtual (but you don't derive classes from this anyhow...)
+
+public:
+
+ /**
+ * Only a single instance of this class is allowed at a time,
+ * and this static variable is used to track the one instance.
+ */
+ static OProcessController *theOProcessController;
+
+ /**
+ * Automatically called upon SIGCHLD.
+ *
+ * Normally you do not need to do anything with this function but
+ * if your application needs to disable SIGCHLD for some time for
+ * reasons beyond your control, you should call this function afterwards
+ * to make sure that no SIGCHLDs where missed.
+ */
+ static void theSigCHLDHandler(int signal);
+ // handler for sigchld
+
+ /**
+ * @internal
+ */
+ static void setupHandlers();
+ /**
+ * @internal
+ */
+ static void resetHandlers();
+ /**
+ * @internal
+ */
+ void addOProcess( OProcess* );
+ /**
+ * @internal
+ */
+ void removeOProcess( OProcess* );
+ public slots:
+ /**
+ * @internal
+ */
+ void slotDoHousekeeping(int socket);
+
+ private slots:
+ void delayedChildrenCleanup();
+private:
+ int fd[2];
+ QSocketNotifier *notifier;
+ static struct sigaction oldChildHandlerData;
+ static bool handlerSet;
+ QValueList<OProcess*> processList;
+ QTimer delayedChildrenCleanupTimer;
+
+ // Disallow assignment and copy-construction
+ OProcessController( const OProcessController& );
+ OProcessController& operator= ( const OProcessController& );
+
+ OProcessControllerPrivate *d;
+};
+
+
+
+#endif
+