3 files changed, 1973 insertions, 0 deletions

diff --git a/core/launcher/qprocess.cpp b/core/launcher/qprocess.cpp
new file mode 100644
index 0000000..97bd539
--- a/dev/null
+++ b/core/launcher/qprocess.cpp
@@ -0,0 +1,639 @@
+/**********************************************************************
+** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
+**
+** This file is part of the Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "qprocess.h"
+
+#ifndef QT_NO_PROCESS
+
+#include "qapplication.h"
+
+
+//#define QT_QPROCESS_DEBUG
+
+
+/*!
+  \class QProcess qprocess.h
+
+  \brief The QProcess class is used to start external programs and to
+  communicate with them.
+
+  This is a temporary class. This will be replaced by Qt 3's QProcess class.
+
+  \ingroup qtopiaemb
+*/
+
+/*!
+  \enum QProcess::Communication
+
+  This enum type defines the communication channels connected to the
+  process.
+
+  \value Stdin  Data can be written to the process's standard input.
+
+  \value Stdout  Data can be read from the process's standard output.
+
+  \value Stderr  Data can be read from the process's standard error.
+
+  \value DupStderr  Duplicates standard error to standard output for new
+  processes; i.e.  everything that the process writes to standard error, is
+  reported by QProcess on standard output instead. This is especially useful if
+  your application requires that the output on standard output and standard
+  error is read in the same order as the process output it. Please note that
+  this is a binary flag, so if you want to activate this together with standard
+  input, output and error redirection (the default), you have to specify
+  \c{Stdin|Stdout|Stderr|DupStderr} for the setCommunication() call.
+
+  \sa setCommunication() communication()
+*/
+
+/*!
+  Constructs a QProcess object. The \a parent and \a name parameters are passed
+  to the QObject constructor.
+
+  \sa setArguments() addArgument() start()
+*/
+QProcess::QProcess( QObject *parent, const char *name )
+    : QObject( parent, name ), ioRedirection( FALSE ), notifyOnExit( FALSE ),
+    wroteToStdinConnected( FALSE ),
+    readStdoutCalled( FALSE ), readStderrCalled( FALSE ),
+    comms( Stdin|Stdout|Stderr )
+{
+    init();
+}
+
+/*!
+  Constructs a QProcess with \a arg0 as the command to be executed. The
+  \a parent and \a name parameters are passed to the QObject constructor.
+
+  The process is not started. You must call start() or launch()
+  to start the process.
+
+  \sa setArguments() addArgument() start()
+*/
+QProcess::QProcess( const QString& arg0, QObject *parent, const char *name )
+    : QObject( parent, name ), ioRedirection( FALSE ), notifyOnExit( FALSE ),
+    wroteToStdinConnected( FALSE ),
+    readStdoutCalled( FALSE ), readStderrCalled( FALSE ),
+    comms( Stdin|Stdout|Stderr )
+{
+    init();
+    addArgument( arg0 );
+}
+
+/*!
+  Constructs a QProcess with \a args as the arguments of the process. The first
+  element in the list is the command to be executed. The other elements in the
+  list are the arguments to this command. The \a parent and \a name
+  parameters are passed to the QObject constructor.
+
+  The process is not started. You must call start() or launch()
+  to start the process.
+
+  \sa setArguments() addArgument() start()
+*/
+QProcess::QProcess( const QStringList& args, QObject *parent, const char *name )
+    : QObject( parent, name ), ioRedirection( FALSE ), notifyOnExit( FALSE ),
+    wroteToStdinConnected( FALSE ),
+    readStdoutCalled( FALSE ), readStderrCalled( FALSE ),
+    comms( Stdin|Stdout|Stderr )
+{
+    init();
+    setArguments( args );
+}
+
+
+/*!
+  Returns the list of arguments that are set for the process. Arguments can be
+  specified with the constructor or with the functions setArguments() and
+  addArgument().
+
+  \sa setArguments() addArgument()
+*/
+QStringList QProcess::arguments() const
+{
+    return _arguments;
+}
+
+/*!
+  Clears the list of arguments that are set for the process.
+
+  \sa setArguments() addArgument()
+*/
+void QProcess::clearArguments()
+{
+    _arguments.clear();
+}
+
+/*!
+  Sets \a args as the arguments for the process. The first element in the list
+  is the command to be executed. The other elements in the list are the
+  arguments to the command. Any previous arguments are deleted.
+
+  \sa arguments() addArgument()
+*/
+void QProcess::setArguments( const QStringList& args )
+{
+    _arguments = args;
+}
+
+/*!
+  Adds \a arg to the end of the list of arguments.
+
+  The first element in the list of arguments is the command to be
+  executed; the following elements are the arguments to the command.
+
+  \sa arguments() setArguments()
+*/
+void QProcess::addArgument( const QString& arg )
+{
+    _arguments.append( arg );
+}
+
+#ifndef QT_NO_DIR
+/*!
+  Returns the working directory that was set with
+  setWorkingDirectory(), or the current directory if none has been
+  set.
+
+  \sa setWorkingDirectory() QDir::current()
+*/
+QDir QProcess::workingDirectory() const
+{
+    return workingDir;
+}
+
+/*!
+  Sets \a dir as the working directory for a process. This does not affect
+  running processes; only processes that are started afterwards are affected.
+
+  Setting the working directory is especially useful for processes that try to
+  access files with relative filenames.
+
+  \sa workingDirectory() start()
+*/
+void QProcess::setWorkingDirectory( const QDir& dir )
+{
+    workingDir = dir;
+}
+#endif //QT_NO_DIR
+
+/*!
+  Returns the communication required with the process.
+
+  \sa setCommunication()
+*/
+int QProcess::communication() const
+{
+    return comms;
+}
+
+/*!
+  Sets \a commFlags as the communication required with the process.
+
+  \a commFlags is a bitwise OR between the flags defined in \c Communication.
+
+  The default is \c{Stdin|Stdout|Stderr}.
+
+  \sa communication()
+*/
+void QProcess::setCommunication( int commFlags )
+{
+    comms = commFlags;
+}
+
+/*!
+  Returns TRUE if the process has exited normally; otherwise returns
+  FALSE. This implies that this function returns FALSE if the process
+  is still running.
+
+  \sa isRunning() exitStatus() processExited()
+*/
+bool QProcess::normalExit() const
+{
+    // isRunning() has the side effect that it determines the exit status!
+    if ( isRunning() )
+        return FALSE;
+    else
+        return exitNormal;
+}
+
+/*!
+  Returns the exit status of the process or 0 if the process is still
+  running. This function returns immediately and does not wait until
+  the process is finished.
+
+  If normalExit() is FALSE (e.g. if the program was killed or
+  crashed), this function returns 0, so you should check the return
+  value of normalExit() before relying on this value.
+
+  \sa normalExit() processExited()
+*/
+int QProcess::exitStatus() const
+{
+    // isRunning() has the side effect that it determines the exit status!
+    if ( isRunning() )
+        return 0;
+    else
+        return exitStat;
+}
+
+
+/*!
+  Reads the data that the process has written to standard output. When
+  new data is written to standard output, the class emits the signal
+  readyReadStdout().
+
+  If there is no data to read, this function returns a QByteArray of
+  size 0: it does not wait until there is something to read.
+
+  \sa readyReadStdout() readLineStdout() readStderr() writeToStdin()
+*/
+QByteArray QProcess::readStdout()
+{
+    if ( readStdoutCalled ) {
+        return QByteArray();
+    }
+    readStdoutCalled = TRUE;
+
+    QByteArray buf = bufStdout()->copy();
+    consumeBufStdout( -1 ); // consume everything
+
+    readStdoutCalled = FALSE;
+    return buf;
+}
+
+/*!
+  Reads the data that the process has written to standard error. When
+  new data is written to standard error, the class emits the signal
+  readyReadStderr().
+
+  If there is no data to read, this function returns a QByteArray of
+  size 0: it does not wait until there is something to read.
+
+  \sa readyReadStderr() readLineStderr() readStdout() writeToStdin()
+*/
+QByteArray QProcess::readStderr()
+{
+    if ( readStderrCalled ) {
+        return QByteArray();
+    }
+    readStderrCalled = TRUE;
+
+    QByteArray buf = bufStderr()->copy();
+    consumeBufStderr( -1 ); // consume everything
+
+    readStderrCalled = FALSE;
+    return buf;
+}
+
+/*!
+  Returns TRUE if it's possible to read an entire line of text from
+  standard output at this time; otherwise returns FALSE.
+
+  \sa readLineStdout() canReadLineStderr()
+*/
+bool QProcess::canReadLineStdout() const
+{
+    QProcess *that = (QProcess*)this;
+    return that->scanNewline( TRUE, 0 );
+}
+
+/*!
+  Returns TRUE if it's possible to read an entire line of text from
+  standard error at this time; otherwise returns FALSE.
+
+  \sa readLineStderr() canReadLineStdout()
+*/
+bool QProcess::canReadLineStderr() const
+{
+    QProcess *that = (QProcess*)this;
+    return that->scanNewline( FALSE, 0 );
+}
+
+/*!
+  Reads a line of text from standard output, excluding any trailing newline or
+  carriage return characters, and returns it. Returns QString::null if
+  canReadLineStdout() returns FALSE.
+
+  \sa canReadLineStdout() readyReadStdout() readStdout() readLineStderr()
+*/
+QString QProcess::readLineStdout()
+{
+    QByteArray a;
+    QString s;
+    if ( scanNewline( TRUE, &a ) ) {
+        if ( a.isEmpty() )
+            s = "";
+        else
+            s = QString( a );
+    }
+    return s;
+}
+
+/*!
+  Reads a line of text from standard error, excluding any trailing newline or
+  carriage return characters and returns it. Returns QString::null if
+  canReadLineStderr() returns FALSE.
+
+  \sa canReadLineStderr() readyReadStderr() readStderr() readLineStdout()
+*/
+QString QProcess::readLineStderr()
+{
+    QByteArray a;
+    QString s;
+    if ( scanNewline( FALSE, &a ) ) {
+        if ( a.isEmpty() )
+            s = "";
+        else
+            s = QString( a );
+    }
+    return s;
+}
+
+/*!
+  This private function scans for any occurrence of \n or \r\n in the
+  buffer \e buf. It stores the text in the byte array \a store if it is
+  non-null.
+*/
+bool QProcess::scanNewline( bool stdOut, QByteArray *store )
+{
+    QByteArray *buf;
+    if ( stdOut )
+        buf = bufStdout();
+    else
+        buf = bufStderr();
+    uint n = buf->size();
+    uint i;
+    for ( i=0; i<n; i++ ) {
+        if ( buf->at(i) == '\n' ) {
+            break;
+        }
+    }
+    if ( i >= n )
+        return FALSE;
+
+    if ( store ) {
+        uint lineLength = i;
+        if ( lineLength>0 && buf->at(lineLength-1) == '\r' )
+            lineLength--; // (if there are two \r, let one stay)
+        store->resize( lineLength );
+        memcpy( store->data(), buf->data(), lineLength );
+        if ( stdOut )
+            consumeBufStdout( i+1 );
+        else
+            consumeBufStderr( i+1 );
+    }
+    return TRUE;
+}
+
+/*!
+  \fn void QProcess::launchFinished()
+
+  This signal is emitted when the process was started with launch().
+  If the start was successful, this signal is emitted after all the
+  data has been written to standard input. If the start failed, then
+  this signal is emitted immediately.
+
+  \sa launch() QObject::deleteLater()
+*/
+
+/*!
+  Runs the process and writes the data \a buf to the process's standard input.
+  If all the data is written to standard input, standard input is
+  closed. The command is searched for in the path for executable programs;
+  you can also use an absolute path in the command itself.
+
+  If \a env is null, then the process is started with the same environment as
+  the starting process. If \a env is non-null, then the values in the
+  stringlist are interpreted as environment setttings of the form \c
+  {key=value} and the process is started with these environment settings. For
+  convenience, there is a small exception to this rule under Unix: if \a env
+  does not contain any settings for the environment variable \c
+  LD_LIBRARY_PATH, then this variable is inherited from the starting process.
+
+  Returns TRUE if the process could be started; otherwise returns FALSE.
+
+  Note that you should not use the slots writeToStdin() and closeStdin() on
+  processes started with launch(), since the result is not well-defined. If you
+  need these slots, use start() instead.
+
+  The process may or may not read the \a buf data sent to its standard
+  input.
+
+  You can call this function even when a process that was started with
+  this instance is still running. Be aware that if you do this the
+  standard input of the process that was launched first will be
+  closed, with any pending data being deleted, and the process will be
+  left to run out of your control. Similarly, if the process could not
+  be started the standard input will be closed and the pending data
+  deleted. (On operating systems that have zombie processes, Qt will
+  also wait() on the old process.)
+
+  The object emits the signal launchFinished() when this function
+  call is finished. If the start was successful, this signal is
+  emitted after all the data has been written to standard input. If
+  the start failed, then this signal is emitted immediately.
+
+  \sa start() launchFinished();
+*/
+bool QProcess::launch( const QByteArray& buf, QStringList *env )
+{
+    if ( start( env ) ) {
+        if ( !buf.isEmpty() ) {
+            connect( this, SIGNAL(wroteToStdin()),
+                    this, SLOT(closeStdinLaunch()) );
+            writeToStdin( buf );
+        } else {
+            closeStdin();
+            emit launchFinished();
+        }
+        return TRUE;
+    } else {
+        emit launchFinished();
+        return FALSE;
+    }
+}
+
+/*! \overload
+
+  The data \a buf is written to standard input with writeToStdin()
+  using the QString::local8Bit() representation of the strings.
+*/
+bool QProcess::launch( const QString& buf, QStringList *env )
+{
+    if ( start( env ) ) {
+        if ( !buf.isEmpty() ) {
+            connect( this, SIGNAL(wroteToStdin()),
+                    this, SLOT(closeStdinLaunch()) );
+            writeToStdin( buf );
+        } else {
+            closeStdin();
+            emit launchFinished();
+        }
+        return TRUE;
+    } else {
+        emit launchFinished();
+        return FALSE;
+    }
+}
+
+/*!
+  This private slot is used by the launch() functions to close standard input.
+*/
+void QProcess::closeStdinLaunch()
+{
+    disconnect( this, SIGNAL(wroteToStdin()),
+            this, SLOT(closeStdinLaunch()) );
+    closeStdin();
+    emit launchFinished();
+}
+
+
+/*!
+  \fn void QProcess::readyReadStdout()
+
+  This signal is emitted when the process has written data to standard output.
+  You can read the data with readStdout().
+
+  Note that this signal is only emitted when there is new data and not
+  when there is old, but unread data. In the slot connected to this signal, you
+  should always read everything that is available at that moment to make sure
+  that you don't lose any data.
+
+  \sa readStdout() readLineStdout() readyReadStderr()
+*/
+/*!
+  \fn void QProcess::readyReadStderr()
+
+  This signal is emitted when the process has written data to standard error.
+  You can read the data with readStderr().
+
+  Note that this signal is only emitted when there is new data and not
+  when there is old, but unread data. In the slot connected to this signal, you
+  should always read everything that is available at that moment to make sure
+  that you don't lose any data.
+
+  \sa readStderr() readLineStderr() readyReadStdout()
+*/
+/*!
+  \fn void QProcess::processExited()
+
+  This signal is emitted when the process has exited.
+
+  \sa isRunning() normalExit() exitStatus() start() launch()
+*/
+/*!
+  \fn void QProcess::wroteToStdin()
+
+  This signal is emitted if the data sent to standard input (via
+  writeToStdin()) was actually written to the process. This does not
+  imply that the process really read the data, since this class only detects
+  when it was able to write the data to the operating system. But it is now
+  safe to close standard input without losing pending data.
+
+  \sa writeToStdin() closeStdin()
+*/
+
+
+/*! \overload
+
+  The string \a buf is handled as text using
+  the QString::local8Bit() representation.
+*/
+void QProcess::writeToStdin( const QString& buf )
+{
+    QByteArray tmp = buf.local8Bit();
+    tmp.resize( buf.length() );
+    writeToStdin( tmp );
+}
+
+
+/*
+ * Under Windows the implementation is not so nice: it is not that easy to
+ * detect when one of the signals should be emitted; therefore there are some
+ * timers that query the information.
+ * To keep it a little efficient, use the timers only when they are needed.
+ * They are needed, if you are interested in the signals. So use
+ * connectNotify() and disconnectNotify() to keep track of your interest.
+ */
+/*!  \reimp
+*/
+void QProcess::connectNotify( const char * signal )
+{
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcess::connectNotify(): signal %s has been connected", signal );
+#endif
+    if ( !ioRedirection )
+        if ( qstrcmp( signal, SIGNAL(readyReadStdout()) )==0 ||
+                qstrcmp( signal, SIGNAL(readyReadStderr()) )==0
+           ) {
+#if defined(QT_QPROCESS_DEBUG)
+            qDebug( "QProcess::connectNotify(): set ioRedirection to TRUE" );
+#endif
+            setIoRedirection( TRUE );
+            return;
+        }
+    if ( !notifyOnExit && qstrcmp( signal, SIGNAL(processExited()) )==0 ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::connectNotify(): set notifyOnExit to TRUE" );
+#endif
+        setNotifyOnExit( TRUE );
+        return;
+    }
+    if ( !wroteToStdinConnected && qstrcmp( signal, SIGNAL(wroteToStdin()) )==0 ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::connectNotify(): set wroteToStdinConnected to TRUE" );
+#endif
+        setWroteStdinConnected( TRUE );
+        return;
+    }
+}
+
+/*!  \reimp
+*/
+void QProcess::disconnectNotify( const char * )
+{
+    if ( ioRedirection &&
+            receivers( SIGNAL(readyReadStdout()) ) ==0 &&
+            receivers( SIGNAL(readyReadStderr()) ) ==0
+            ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::disconnectNotify(): set ioRedirection to FALSE" );
+#endif
+        setIoRedirection( FALSE );
+    }
+    if ( notifyOnExit && receivers( SIGNAL(processExited()) ) == 0 ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::disconnectNotify(): set notifyOnExit to FALSE" );
+#endif
+        setNotifyOnExit( FALSE );
+    }
+    if ( wroteToStdinConnected && receivers( SIGNAL(wroteToStdin()) ) == 0 ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::disconnectNotify(): set wroteToStdinConnected to FALSE" );
+#endif
+        setWroteStdinConnected( FALSE );
+    }
+}
+
+#endif // QT_NO_PROCESS
diff --git a/core/launcher/qprocess.h b/core/launcher/qprocess.h
new file mode 100644
index 0000000..0162234
--- a/dev/null
+++ b/core/launcher/qprocess.h
@@ -0,0 +1,163 @@
+/**********************************************************************
+** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
+**
+** This file is part of the Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#ifndef QPROCESS_H
+#define QPROCESS_H
+
+#include <qtopia/global.h>
+
+#ifndef QT_H
+#include "qobject.h"
+#include "qstringlist.h"
+#include "qdir.h"
+#endif // QT_H
+
+#ifndef QT_NO_PROCESS
+
+class QProcessPrivate;
+
+
+class Q_EXPORT QProcess : public QObject
+{
+    Q_OBJECT
+public:
+    QProcess( QObject *parent=0, const char *name=0 );
+    QProcess( const QString& arg0, QObject *parent=0, const char *name=0 );
+    QProcess( const QStringList& args, QObject *parent=0, const char *name=0 );
+    ~QProcess();
+
+    // set and get the arguments and working directory
+    QStringList arguments() const;
+    void clearArguments();
+    virtual void setArguments( const QStringList& args );
+    virtual void addArgument( const QString& arg );
+#ifndef QT_NO_DIR
+    QDir workingDirectory() const;
+    virtual void setWorkingDirectory( const QDir& dir );
+#endif
+
+    // priority
+    int priority() const;
+    void setPriority(int);
+
+    // set and get the comms wanted
+    enum Communication { Stdin=0x01, Stdout=0x02, Stderr=0x04, DupStderr=0x08 };
+    void setCommunication( int c );
+    int communication() const;
+
+    // start the execution
+    virtual bool start( QStringList *env=0 );
+    virtual bool launch( const QString& buf, QStringList *env=0  );
+    virtual bool launch( const QByteArray& buf, QStringList *env=0  );
+
+    // inquire the status
+    bool isRunning() const;
+    bool normalExit() const;
+    int exitStatus() const;
+
+    // reading
+    virtual QByteArray readStdout();
+    virtual QByteArray readStderr();
+    bool canReadLineStdout() const;
+    bool canReadLineStderr() const;
+    virtual QString readLineStdout();
+    virtual QString readLineStderr();
+
+    // get platform dependent process information
+#if defined(Q_OS_WIN32)
+    typedef void* PID;
+#else
+    typedef long Q_LONG;
+    typedef Q_LONG PID;
+#endif
+    PID processIdentifier();
+
+    void flushStdin();
+
+signals:
+    void readyReadStdout();
+    void readyReadStderr();
+    void processExited();
+    void wroteToStdin();
+    void launchFinished();
+
+public slots:
+    // end the execution
+    void tryTerminate() const;
+    void kill() const;
+
+    // input
+    virtual void writeToStdin( const QByteArray& buf );
+    virtual void writeToStdin( const QString& buf );
+    virtual void closeStdin();
+
+protected: // ### or private?
+    void connectNotify( const char * signal );
+    void disconnectNotify( const char * signal );
+private:
+    void setIoRedirection( bool value );
+    void setNotifyOnExit( bool value );
+    void setWroteStdinConnected( bool value );
+
+    void init();
+    void reset();
+#if defined(Q_OS_WIN32)
+    uint readStddev( HANDLE dev, char *buf, uint bytes );
+#endif
+    bool scanNewline( bool stdOut, QByteArray *store );
+
+    QByteArray* bufStdout();
+    QByteArray* bufStderr();
+    void consumeBufStdout( int consume );
+    void consumeBufStderr( int consume );
+
+private slots:
+    void socketRead( int fd );
+    void socketWrite( int fd );
+    void timeout();
+    void closeStdinLaunch();
+
+private:
+    QProcessPrivate *d;
+#ifndef QT_NO_DIR
+    QDir        workingDir;
+#endif
+    QStringList _arguments;
+
+    int  exitStat; // exit status
+    bool exitNormal; // normal exit?
+    bool ioRedirection; // automatically set be (dis)connectNotify
+    bool notifyOnExit; // automatically set be (dis)connectNotify
+    bool wroteToStdinConnected; // automatically set be (dis)connectNotify
+
+    bool readStdoutCalled;
+    bool readStderrCalled;
+    int comms;
+
+    friend class QProcessPrivate;
+#if defined(Q_OS_UNIX) || defined(_OS_UNIX) || defined(UNIX)
+    friend class QProcessManager;
+    friend class QProc;
+#endif
+};
+
+#endif // QT_NO_PROCESS
+
+#endif // QPROCESS_H
diff --git a/core/launcher/qprocess_unix.cpp b/core/launcher/qprocess_unix.cpp
new file mode 100644
index 0000000..a07bf64
--- a/dev/null
+++ b/core/launcher/qprocess_unix.cpp
@@ -0,0 +1,1171 @@
+/**********************************************************************
+** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
+**
+** This file is part of the Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+//#include "qplatformdefs.h"
+
+// Solaris redefines connect -> __xnet_connect with _XOPEN_SOURCE_EXTENDED.
+#if defined(connect)
+#undef connect
+#endif
+
+#include "qprocess.h"
+
+#ifndef QT_NO_PROCESS
+
+#include "qapplication.h"
+#include "qqueue.h"
+#include "qlist.h"
+#include "qsocketnotifier.h"
+#include "qtimer.h"
+#include "qregexp.h"
+
+#include "qcleanuphandler_p.h"
+
+#include <stdlib.h>
+
+// ### FOR Qt 2.3 compat
+#include <unistd.h>
+#include <signal.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <sys/fcntl.h>
+
+#include <errno.h>
+
+#include <sys/resource.h>
+
+#ifdef __MIPSEL__
+# ifndef SOCK_DGRAM
+#  define SOCK_DGRAM 1
+# endif
+# ifndef SOCK_STREAM
+#  define SOCK_STREAM 2
+# endif
+#endif
+
+//#define QT_QPROCESS_DEBUG
+
+
+#ifdef Q_C_CALLBACKS
+extern "C" {
+#endif // Q_C_CALLBACKS
+
+#define QT_SIGNAL_RETTYPE       void
+#define QT_SIGNAL_ARGS          int
+#define QT_SIGNAL_IGNORE        SIG_IGN
+
+  QT_SIGNAL_RETTYPE qt_C_sigchldHnd(QT_SIGNAL_ARGS);
+  QT_SIGNAL_RETTYPE qt_C_sigpipeHnd(QT_SIGNAL_ARGS);
+
+#ifdef Q_C_CALLBACKS
+}
+#endif // Q_C_CALLBACKS
+
+
+class QProc;
+class QProcessManager;
+class QProcessPrivate
+{
+public:
+    QProcessPrivate();
+    ~QProcessPrivate();
+
+    void closeOpenSocketsForChild();
+    void newProc( pid_t pid, QProcess *process );
+
+    QByteArray bufStdout;
+    QByteArray bufStderr;
+
+    QQueue<QByteArray> stdinBuf;
+
+    QSocketNotifier *notifierStdin;
+    QSocketNotifier *notifierStdout;
+    QSocketNotifier *notifierStderr;
+
+    ssize_t stdinBufRead;
+    QProc *proc;
+
+    bool exitValuesCalculated;
+    bool socketReadCalled;
+
+    static QProcessManager *procManager;
+};
+
+
+/***********************************************************************
+ *
+ * QProc
+ *
+ **********************************************************************/
+/*
+  The class QProcess does not necessarily map exactly to the running
+  child processes: if the process is finished, the QProcess class may still be
+  there; furthermore a user can use QProcess to start more than one process.
+
+  The helper-class QProc has the semantics that one instance of this class maps
+  directly to a running child process.
+*/
+class QProc
+{
+public:
+    QProc( pid_t p, QProcess *proc=0 ) : pid(p), process(proc)
+    {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProc: Constructor for pid %d and QProcess %p", pid, process );
+#endif
+        socketStdin = 0;
+        socketStdout = 0;
+        socketStderr = 0;
+    }
+    ~QProc()
+    {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProc: Destructor for pid %d and QProcess %p", pid, process );
+#endif
+        if ( process != 0 ) {
+            if ( process->d->notifierStdin )
+              process->d->notifierStdin->setEnabled( FALSE );
+            if ( process->d->notifierStdout )
+                process->d->notifierStdout->setEnabled( FALSE );
+            if ( process->d->notifierStderr )
+                process->d->notifierStderr->setEnabled( FALSE );
+            process->d->proc = 0;
+        }
+        if( socketStdin != 0 )
+          ::close( socketStdin );
+        // ### close these sockets even on parent exit or is it better only on
+        // sigchld (but what do I have to do with them on exit then)?
+        if( socketStdout != 0 )
+            ::close( socketStdout );
+        if( socketStderr != 0 )
+            ::close( socketStderr );
+    }
+
+    pid_t pid;
+    int socketStdin;
+    int socketStdout;
+    int socketStderr;
+    QProcess *process;
+};
+
+/***********************************************************************
+ *
+ * QProcessManager
+ *
+ **********************************************************************/
+class QProcessManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    QProcessManager();
+    ~QProcessManager();
+
+    void append( QProc *p );
+    void remove( QProc *p );
+
+    void cleanup();
+
+public slots:
+    void removeMe();
+    void sigchldHnd( int );
+
+public:
+    struct sigaction oldactChld;
+    struct sigaction oldactPipe;
+    QList<QProc> *procList;
+    int sigchldFd[2];
+};
+
+QCleanupHandler<QProcessManager> qprocess_cleanup_procmanager;
+
+QProcessManager::QProcessManager()
+{
+    procList = new QList<QProc>;
+    procList->setAutoDelete( TRUE );
+
+    // The SIGCHLD handler writes to a socket to tell the manager that
+    // something happened. This is done to get the processing in sync with the
+    // event reporting.
+    if ( ::socketpair( AF_UNIX, SOCK_STREAM, 0, sigchldFd ) ) {
+        sigchldFd[0] = 0;
+        sigchldFd[1] = 0;
+    } else {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcessManager: install socket notifier (%d)", sigchldFd[1] );
+#endif
+        QSocketNotifier *sn = new QSocketNotifier( sigchldFd[1],
+                QSocketNotifier::Read, this );
+        connect( sn, SIGNAL(activated(int)),
+                this, SLOT(sigchldHnd(int)) );
+        sn->setEnabled( TRUE );
+    }
+
+    // install a SIGCHLD handler and ignore SIGPIPE
+    struct sigaction act;
+
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessManager: install a SIGCHLD handler" );
+#endif
+    act.sa_handler = qt_C_sigchldHnd;
+    sigemptyset( &(act.sa_mask) );
+    sigaddset( &(act.sa_mask), SIGCHLD );
+    act.sa_flags = SA_NOCLDSTOP;
+#if defined(SA_RESTART)
+    act.sa_flags |= SA_RESTART;
+#endif
+    if ( sigaction( SIGCHLD, &act, &oldactChld ) != 0 )
+        qWarning( "Error installing SIGCHLD handler" );
+
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessManager: install a SIGPIPE handler (SIG_IGN)" );
+#endif
+    /*
+        Using qt_C_sigpipeHnd rather than SIG_IGN is a workaround
+        for a strange problem where GNU tar (called by backuprestore)
+        would hang on filesystem-full. Strangely, the qt_C_sigpipeHnd
+        is never even called, yet this avoids the hang.
+    */
+    act.sa_handler = qt_C_sigpipeHnd;
+    sigemptyset( &(act.sa_mask) );
+    sigaddset( &(act.sa_mask), SIGPIPE );
+    act.sa_flags = 0;
+    if ( sigaction( SIGPIPE, &act, &oldactPipe ) != 0 )
+        qWarning( "Error installing SIGPIPE handler" );
+}
+
+QProcessManager::~QProcessManager()
+{
+    delete procList;
+
+    if ( sigchldFd[0] != 0 )
+        ::close( sigchldFd[0] );
+    if ( sigchldFd[1] != 0 )
+        ::close( sigchldFd[1] );
+
+    // restore SIGCHLD handler
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessManager: restore old sigchild handler" );
+#endif
+    if ( sigaction( SIGCHLD, &oldactChld, 0 ) != 0 )
+        qWarning( "Error restoring SIGCHLD handler" );
+
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessManager: restore old sigpipe handler" );
+#endif
+    if ( sigaction( SIGPIPE, &oldactPipe, 0 ) != 0 )
+        qWarning( "Error restoring SIGPIPE handler" );
+}
+
+void QProcessManager::append( QProc *p )
+{
+    procList->append( p );
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessManager: append process (procList.count(): %d)", procList->count() );
+#endif
+}
+
+void QProcessManager::remove( QProc *p )
+{
+    procList->remove( p );
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessManager: remove process (procList.count(): %d)", procList->count() );
+#endif
+    cleanup();
+}
+
+void QProcessManager::cleanup()
+{
+    if ( procList->count() == 0 ) {
+        QTimer::singleShot( 0, this, SLOT(removeMe()) );
+    }
+}
+
+void QProcessManager::removeMe()
+{
+    if ( procList->count() == 0 ) {
+        qprocess_cleanup_procmanager.remove( &QProcessPrivate::procManager );
+        QProcessPrivate::procManager = 0;
+        delete this;
+    }
+}
+
+void QProcessManager::sigchldHnd( int fd )
+{
+    char tmp;
+    ::read( fd, &tmp, sizeof(tmp) );
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessManager::sigchldHnd()" );
+#endif
+    QProc *proc;
+    QProcess *process;
+    bool removeProc;
+    proc = procList->first();
+    while ( proc != 0 ) {
+        removeProc = FALSE;
+        process = proc->process;
+        QProcess *process_exit_notify=0;
+        if ( process != 0 ) {
+            if ( !process->isRunning() ) {
+#if defined(QT_QPROCESS_DEBUG)
+                qDebug( "QProcessManager::sigchldHnd() (PID: %d): process exited (QProcess available)", proc->pid );
+#endif
+                // read pending data
+                int nbytes = 0;
+                if ( ::ioctl(proc->socketStdout, FIONREAD, (char*)&nbytes)==0 && nbytes>0 ) {
+#if defined(QT_QPROCESS_DEBUG)
+                qDebug( "QProcessManager::sigchldHnd() (PID: %d): reading %d bytes of pending data on stdout", proc->pid, nbytes );
+#endif
+                    process->socketRead( proc->socketStdout );
+                }
+                nbytes = 0;
+                if ( ::ioctl(proc->socketStderr, FIONREAD, (char*)&nbytes)==0 && nbytes>0 ) {
+#if defined(QT_QPROCESS_DEBUG)
+                qDebug( "QProcessManager::sigchldHnd() (PID: %d): reading %d bytes of pending data on stderr", proc->pid, nbytes );
+#endif
+                    process->socketRead( proc->socketStderr );
+                }
+
+                if ( process->notifyOnExit )
+                    process_exit_notify = process;
+
+                removeProc = TRUE;
+            }
+        } else {
+            int status;
+            if ( ::waitpid( proc->pid, &status, WNOHANG ) == proc->pid ) {
+#if defined(QT_QPROCESS_DEBUG)
+                qDebug( "QProcessManager::sigchldHnd() (PID: %d): process exited (QProcess not available)", proc->pid );
+#endif
+                removeProc = TRUE;
+            }
+        }
+        if ( removeProc ) {
+            QProc *oldproc = proc;
+            proc = procList->next();
+            remove( oldproc );
+        } else {
+            proc = procList->next();
+        }
+        if ( process_exit_notify )
+            emit process_exit_notify->processExited();
+    }
+}
+
+#include "qprocess_unix.moc"
+
+
+/***********************************************************************
+ *
+ * QProcessPrivate
+ *
+ **********************************************************************/
+QProcessManager *QProcessPrivate::procManager = 0;
+
+QProcessPrivate::QProcessPrivate()
+{
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessPrivate: Constructor" );
+#endif
+    stdinBufRead = 0;
+
+    notifierStdin = 0;
+    notifierStdout = 0;
+    notifierStderr = 0;
+
+    exitValuesCalculated = FALSE;
+    socketReadCalled = FALSE;
+
+    proc = 0;
+}
+
+QProcessPrivate::~QProcessPrivate()
+{
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcessPrivate: Destructor" );
+#endif
+
+    if ( proc != 0 ) {
+        if ( proc->socketStdin != 0 ) {
+            ::close( proc->socketStdin );
+            proc->socketStdin = 0;
+        }
+        proc->process = 0;
+    }
+
+    while ( !stdinBuf.isEmpty() ) {
+        delete stdinBuf.dequeue();
+    }
+    delete notifierStdin;
+    delete notifierStdout;
+    delete notifierStderr;
+}
+
+/*
+  Closes all open sockets in the child process that are not needed by the child
+  process. Otherwise one child may have an open socket on standard input, etc.
+  of another child.
+*/
+void QProcessPrivate::closeOpenSocketsForChild()
+{
+    if ( procManager != 0 ) {
+        if ( procManager->sigchldFd[0] != 0 )
+            ::close( procManager->sigchldFd[0] );
+        if ( procManager->sigchldFd[1] != 0 )
+            ::close( procManager->sigchldFd[1] );
+
+        // close also the sockets from other QProcess instances
+        QProc *proc;
+        for ( proc=procManager->procList->first(); proc!=0; proc=procManager->procList->next() ) {
+            ::close( proc->socketStdin );
+            ::close( proc->socketStdout );
+            ::close( proc->socketStderr );
+        }
+    }
+}
+
+void QProcessPrivate::newProc( pid_t pid, QProcess *process )
+{
+    proc = new QProc( pid, process );
+    if ( procManager == 0 ) {
+        procManager = new QProcessManager;
+        qprocess_cleanup_procmanager.add( &procManager );
+    }
+    // the QProcessManager takes care of deleting the QProc instances
+    procManager->append( proc );
+}
+
+/***********************************************************************
+ *
+ * sigchld handler callback
+ *
+ **********************************************************************/
+QT_SIGNAL_RETTYPE qt_C_sigchldHnd( QT_SIGNAL_ARGS )
+{
+    if ( QProcessPrivate::procManager == 0 )
+        return;
+    if ( QProcessPrivate::procManager->sigchldFd[0] == 0 )
+        return;
+
+    char a = 1;
+    ::write( QProcessPrivate::procManager->sigchldFd[0], &a, sizeof(a) );
+}
+QT_SIGNAL_RETTYPE qt_C_sigpipeHnd( QT_SIGNAL_ARGS )
+{
+    // Ignore (but in a way somehow different to SIG_IGN).
+}
+
+
+/***********************************************************************
+ *
+ * QProcess
+ *
+ **********************************************************************/
+/*!
+  This private class does basic initialization.
+*/
+void QProcess::init()
+{
+    d = new QProcessPrivate();
+    exitStat = 0;
+    exitNormal = FALSE;
+}
+
+/*!
+  This private class resets the process variables, etc. so that it can be used
+  for another process to start.
+*/
+void QProcess::reset()
+{
+    delete d;
+    d = new QProcessPrivate();
+    exitStat = 0;
+    exitNormal = FALSE;
+    d->bufStdout.resize( 0 );
+    d->bufStderr.resize( 0 );
+}
+
+QByteArray* QProcess::bufStdout()
+{
+    if ( d->proc && d->proc->socketStdout ) {
+        // ### can this cause a blocking behaviour (maybe do a ioctl() to see
+        // if data is available)?
+        socketRead( d->proc->socketStdout );
+    }
+    return &d->bufStdout;
+}
+
+QByteArray* QProcess::bufStderr()
+{
+    if ( d->proc && d->proc->socketStderr ) {
+        // ### can this cause a blocking behaviour (maybe do a ioctl() to see
+        // if data is available)?
+        socketRead( d->proc->socketStderr );
+    }
+    return &d->bufStderr;
+}
+
+void QProcess::consumeBufStdout( int consume )
+{
+    uint n = d->bufStdout.size();
+    if ( consume==-1 || (uint)consume >= n ) {
+        d->bufStdout.resize( 0 );
+    } else {
+        QByteArray tmp( n - consume );
+        memcpy( tmp.data(), d->bufStdout.data()+consume, n-consume );
+        d->bufStdout = tmp;
+    }
+}
+
+void QProcess::consumeBufStderr( int consume )
+{
+    uint n = d->bufStderr.size();
+    if ( consume==-1 || (uint)consume >= n ) {
+        d->bufStderr.resize( 0 );
+    } else {
+        QByteArray tmp( n - consume );
+        memcpy( tmp.data(), d->bufStderr.data()+consume, n-consume );
+        d->bufStderr = tmp;
+    }
+}
+
+/*!
+  Destroys the class.
+
+  If the process is running, it is NOT terminated! Standard input, standard
+  output and standard error of the process are closed.
+
+  You can connect the destroyed() signal to the kill() slot, if you want the
+  process to be terminated automatically when the class is destroyed.
+
+  \sa tryTerminate() kill()
+*/
+QProcess::~QProcess()
+{
+    delete d;
+}
+
+/*!
+  Tries to run a process for the command and arguments that were specified with
+  setArguments(), addArgument() or that were specified in the constructor. The
+  command is searched in the path for executable programs; you can also use an
+  absolute path to the command.
+
+  If \a env is null, then the process is started with the same environment as
+  the starting process. If \a env is non-null, then the values in the
+  stringlist are interpreted as environment setttings of the form \c
+  {key=value} and the process is started in these environment settings. For
+  convenience, there is a small exception to this rule: under Unix, if \a env
+  does not contain any settings for the environment variable \c
+  LD_LIBRARY_PATH, then this variable is inherited from the starting process;
+  under Windows the same applies for the enverionment varialbe \c PATH.
+
+  Returns TRUE if the process could be started, otherwise FALSE.
+
+  You can write data to standard input of the process with
+  writeToStdin(), you can close standard input with closeStdin() and you can
+  terminate the process tryTerminate() resp. kill().
+
+  You can call this function even when there already is a running
+  process in this object. In this case, QProcess closes standard input
+  of the old process and deletes pending data, i.e., you loose all
+  control over that process, but the process is not terminated. This applies
+  also if the process could not be started. (On operating systems that have
+  zombie processes, Qt will also wait() on the old process.)
+
+  \sa launch() closeStdin()
+*/
+bool QProcess::start( QStringList *env )
+{
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcess::start()" );
+#endif
+    reset();
+
+    int sStdin[2];
+    int sStdout[2];
+    int sStderr[2];
+
+    // open sockets for piping
+    if ( (comms & Stdin) && ::socketpair( AF_UNIX, SOCK_STREAM, 0, sStdin ) == -1 ) {
+        return FALSE;
+    }
+    if ( (comms & Stderr) && ::socketpair( AF_UNIX, SOCK_STREAM, 0, sStderr ) == -1 ) {
+        return FALSE;
+    }
+    if ( (comms & Stdout) && ::socketpair( AF_UNIX, SOCK_STREAM, 0, sStdout ) == -1 ) {
+        return FALSE;
+    }
+
+    // the following pipe is only used to determine if the process could be
+    // started
+    int fd[2];
+    if ( pipe( fd ) < 0 ) {
+        // non critical error, go on
+        fd[0] = 0;
+        fd[1] = 0;
+    }
+
+    // construct the arguments for exec
+    QCString *arglistQ = new QCString[ _arguments.count() + 1 ];
+    const char** arglist = new const char*[ _arguments.count() + 1 ];
+    int i = 0;
+    for ( QStringList::Iterator it = _arguments.begin(); it != _arguments.end(); ++it ) {
+        arglistQ[i] = (*it).local8Bit();
+        arglist[i] = arglistQ[i];
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::start(): arg %d = %s", i, arglist[i] );
+#endif
+        i++;
+    }
+    arglist[i] = 0;
+
+    // Must make sure signal handlers are installed before exec'ing
+    // in case the process exits quickly.
+    if ( d->procManager == 0 ) {
+        d->procManager = new QProcessManager;
+        qprocess_cleanup_procmanager.add( &d->procManager );
+    }
+
+    // fork and exec
+    QApplication::flushX();
+    pid_t pid = fork();
+    if ( pid == 0 ) {
+        // child
+        d->closeOpenSocketsForChild();
+        if ( comms & Stdin ) {
+            ::close( sStdin[1] );
+            ::dup2( sStdin[0], STDIN_FILENO );
+        }
+        if ( comms & Stdout ) {
+            ::close( sStdout[0] );
+            ::dup2( sStdout[1], STDOUT_FILENO );
+        }
+        if ( comms & Stderr ) {
+            ::close( sStderr[0] );
+            ::dup2( sStderr[1], STDERR_FILENO );
+        }
+        if ( comms & DupStderr ) {
+            ::dup2( STDOUT_FILENO, STDERR_FILENO );
+        }
+#ifndef QT_NO_DIR
+        ::chdir( workingDir.absPath().latin1() );
+#endif
+        if ( fd[0] )
+            ::close( fd[0] );
+        if ( fd[1] )
+            ::fcntl( fd[1], F_SETFD, FD_CLOEXEC ); // close on exec shows sucess
+
+        if ( env == 0 ) { // inherit environment and start process
+            ::execvp( arglist[0], (char*const*)arglist ); // ### cast not nice
+        } else { // start process with environment settins as specified in env
+            // construct the environment for exec
+            int numEntries = env->count();
+            bool setLibraryPath =
+                env->grep( QRegExp( "^LD_LIBRARY_PATH=" ) ).isEmpty() &&
+                getenv( "LD_LIBRARY_PATH" ) != 0;
+            if ( setLibraryPath )
+                numEntries++;
+            QCString *envlistQ = new QCString[ numEntries + 1 ];
+            const char** envlist = new const char*[ numEntries + 1 ];
+            int i = 0;
+            if ( setLibraryPath ) {
+                envlistQ[i] = QString( "LD_LIBRARY_PATH=%1" ).arg( getenv( "LD_LIBRARY_PATH" ) ).local8Bit();
+                envlist[i] = envlistQ[i];
+                i++;
+            }
+            for ( QStringList::Iterator it = env->begin(); it != env->end(); ++it ) {
+                envlistQ[i] = (*it).local8Bit();
+                envlist[i] = envlistQ[i];
+                i++;
+            }
+            envlist[i] = 0;
+
+            // look for the executable in the search path
+            if ( _arguments.count()>0 && getenv("PATH")!=0 ) {
+                QString command = _arguments[0];
+                if ( !command.contains( '/' ) ) {
+                    QStringList pathList = QStringList::split( ':', getenv( "PATH" ) );
+                    for (QStringList::Iterator it = pathList.begin(); it != pathList.end(); ++it ) {
+                        QString dir = *it;
+#ifdef Q_OS_MACX
+                        if(QFile::exists(dir + "/" + command + ".app")) //look in a bundle
+                            dir += "/" + command + ".app/Contents/MacOS";
+#endif
+#ifndef QT_NO_DIR
+                        QFileInfo fileInfo( dir, command );
+#else
+                        QFileInfo fileInfo( dir + "/" + command );
+#endif
+                        if ( fileInfo.isExecutable() ) {
+                            arglistQ[0] = fileInfo.filePath().local8Bit();
+                            arglist[0] = arglistQ[0];
+                            break;
+                        }
+                    }
+                }
+            }
+            ::execve( arglist[0], (char*const*)arglist, (char*const*)envlist ); // ### casts not nice
+        }
+        if ( fd[1] ) {
+            char buf = 0;
+            ::write( fd[1], &buf, 1 );
+            ::close( fd[1] );
+        }
+        ::exit( -1 );
+    } else if ( pid == -1 ) {
+        // error forking
+        goto error;
+    }
+
+    // test if exec was successful
+    if ( fd[1] )
+        ::close( fd[1] );
+    if ( fd[0] ) {
+        char buf;
+        for ( ;; ) {
+            int n = ::read( fd[0], &buf, 1 );
+            if ( n==1 ) {
+                // socket was not closed => error
+                d->proc = 0;
+                goto error;
+            } else if ( n==-1 ) {
+                if ( errno==EAGAIN || errno==EINTR )
+                    // try it again
+                    continue;
+            }
+            break;
+        }
+        ::close( fd[0] );
+    }
+
+    d->newProc( pid, this );
+
+    if ( comms & Stdin ) {
+        ::close( sStdin[0] );
+        d->proc->socketStdin = sStdin[1];
+        d->notifierStdin = new QSocketNotifier( sStdin[1], QSocketNotifier::Write );
+        connect( d->notifierStdin, SIGNAL(activated(int)),
+                this, SLOT(socketWrite(int)) );
+        // setup notifiers for the sockets
+        if ( !d->stdinBuf.isEmpty() ) {
+            d->notifierStdin->setEnabled( TRUE );
+        }
+    }
+    if ( comms & Stdout ) {
+        ::close( sStdout[1] );
+        d->proc->socketStdout = sStdout[0];
+        d->notifierStdout = new QSocketNotifier( sStdout[0], QSocketNotifier::Read );
+        connect( d->notifierStdout, SIGNAL(activated(int)),
+                this, SLOT(socketRead(int)) );
+        if ( ioRedirection )
+            d->notifierStdout->setEnabled( TRUE );
+    }
+    if ( comms & Stderr ) {
+        ::close( sStderr[1] );
+        d->proc->socketStderr = sStderr[0];
+        d->notifierStderr = new QSocketNotifier( sStderr[0], QSocketNotifier::Read );
+        connect( d->notifierStderr, SIGNAL(activated(int)),
+                this, SLOT(socketRead(int)) );
+        if ( ioRedirection )
+            d->notifierStderr->setEnabled( TRUE );
+    }
+
+    // cleanup and return
+    delete[] arglistQ;
+    delete[] arglist;
+    return TRUE;
+
+error:
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcess::start(): error starting process" );
+#endif
+    if ( d->procManager )
+        d->procManager->cleanup();
+    if ( comms & Stdin ) {
+        ::close( sStdin[1] );
+        ::close( sStdin[0] );
+    }
+    if ( comms & Stdout ) {
+        ::close( sStdout[0] );
+        ::close( sStdout[1] );
+    }
+    if ( comms & Stderr ) {
+        ::close( sStderr[0] );
+        ::close( sStderr[1] );
+    }
+    ::close( fd[0] );
+    ::close( fd[1] );
+    delete[] arglistQ;
+    delete[] arglist;
+    return FALSE;
+}
+
+
+/*!
+  Asks the process to terminate. Processes can ignore this wish. If you want to
+  be sure that the process really terminates, you must use kill() instead.
+
+  The slot returns immediately: it does not wait until the process has
+  finished. When the process really exited, the signal processExited() is
+  emitted.
+
+  \sa kill() processExited()
+*/
+void QProcess::tryTerminate() const
+{
+    if ( d->proc != 0 )
+        ::kill( d->proc->pid, SIGTERM );
+}
+
+/*!
+  Terminates the process. This is not a safe way to end a process since the
+  process will not be able to do cleanup. tryTerminate() is a safer way to do
+  it, but processes might ignore a tryTerminate().
+
+  The nice way to end a process and to be sure that it is finished, is doing
+  something like this:
+  \code
+    process->tryTerminate();
+    QTimer::singleShot( 5000, process, SLOT( kill() ) );
+  \endcode
+
+  This tries to terminate the process the nice way. If the process is still
+  running after 5 seconds, it terminates the process the hard way. The timeout
+  should be chosen depending on the time the process needs to do all the
+  cleanup: use a higher value if the process is likely to do heavy computation
+  on cleanup.
+
+  The slot returns immediately: it does not wait until the process has
+  finished. When the process really exited, the signal processExited() is
+  emitted.
+
+  \sa tryTerminate() processExited()
+*/
+void QProcess::kill() const
+{
+    if ( d->proc != 0 )
+        ::kill( d->proc->pid, SIGKILL );
+}
+
+/*!
+  Returns TRUE if the process is running, otherwise FALSE.
+
+  \sa normalExit() exitStatus() processExited()
+*/
+bool QProcess::isRunning() const
+{
+    if ( d->exitValuesCalculated ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::isRunning(): FALSE (already computed)" );
+#endif
+        return FALSE;
+    }
+    if ( d->proc == 0 )
+        return FALSE;
+    int status;
+    if ( ::waitpid( d->proc->pid, &status, WNOHANG ) == d->proc->pid )
+    {
+        // compute the exit values
+        QProcess *that = (QProcess*)this; // mutable
+        that->exitNormal = WIFEXITED( status ) != 0;
+        if ( exitNormal ) {
+            that->exitStat = (char)WEXITSTATUS( status );
+        }
+        d->exitValuesCalculated = TRUE;
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::isRunning() (PID: %d): FALSE", d->proc->pid );
+#endif
+        return FALSE;
+    }
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcess::isRunning() (PID: %d): TRUE", d->proc->pid );
+#endif
+    return TRUE;
+}
+
+/*!
+  Writes the data \a buf to the standard input of the process. The process may
+  or may not read this data.
+
+  This function returns immediately; the QProcess class might write the data at
+  a later point (you have to enter the event loop for that). When all the data
+  is written to the process, the signal wroteToStdin() is emitted. This does
+  not mean that the process really read the data, since this class only detects
+  when it was able to write the data to the operating system.
+
+  \sa wroteToStdin() closeStdin() readStdout() readStderr()
+*/
+void QProcess::writeToStdin( const QByteArray& buf )
+{
+#if defined(QT_QPROCESS_DEBUG)
+//    qDebug( "QProcess::writeToStdin(): write to stdin (%d)", d->socketStdin );
+#endif
+    d->stdinBuf.enqueue( new QByteArray(buf) );
+    if ( d->notifierStdin != 0 )
+        d->notifierStdin->setEnabled( TRUE );
+}
+
+
+/*!
+  Closes standard input of the process.
+
+  This function also deletes pending data that is not written to standard input
+  yet.
+
+  \sa wroteToStdin()
+*/
+void QProcess::closeStdin()
+{
+    if ( d->proc == 0 )
+        return;
+    if ( d->proc->socketStdin !=0 ) {
+        while ( !d->stdinBuf.isEmpty() ) {
+            delete d->stdinBuf.dequeue();
+        }
+        delete d->notifierStdin;
+        d->notifierStdin = 0;
+        if ( ::close( d->proc->socketStdin ) != 0 ) {
+            qWarning( "Could not close stdin of child process" );
+        }
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::closeStdin(): stdin (%d) closed", d->proc->socketStdin );
+#endif
+        d->proc->socketStdin = 0;
+    }
+}
+
+
+/*
+  This private slot is called when the process has outputted data to either
+  standard output or standard error.
+*/
+void QProcess::socketRead( int fd )
+{
+    if ( d->socketReadCalled ) {
+        // the slots that are connected to the readyRead...() signals might
+        // trigger a recursive call of socketRead(). Avoid this since you get a
+        // blocking read otherwise.
+        return;
+    }
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcess::socketRead(): %d", fd );
+#endif
+    if ( fd == 0 )
+        return;
+    const int bufsize = 4096;
+    QByteArray *buffer = 0;
+    uint oldSize;
+    int n;
+    if ( fd == d->proc->socketStdout ) {
+        buffer = &d->bufStdout;
+    } else if ( fd == d->proc->socketStderr ) {
+        buffer = &d->bufStderr;
+    } else {
+        // this case should never happen, but just to be safe
+        return;
+    }
+
+    // read data
+    oldSize = buffer->size();
+    buffer->resize( oldSize + bufsize );
+    n = ::read( fd, buffer->data()+oldSize, bufsize );
+    if ( n > 0 )
+        buffer->resize( oldSize + n );
+    else
+        buffer->resize( oldSize );
+    // eof or error?
+    if ( n == 0 || n == -1 ) {
+        if ( fd == d->proc->socketStdout ) {
+#if defined(QT_QPROCESS_DEBUG)
+            qDebug( "QProcess::socketRead(): stdout (%d) closed", fd );
+#endif
+            d->notifierStdout->setEnabled( FALSE );
+            delete d->notifierStdout;
+            d->notifierStdout = 0;
+            ::close( d->proc->socketStdout );
+            d->proc->socketStdout = 0;
+            return;
+        } else if ( fd == d->proc->socketStderr ) {
+#if defined(QT_QPROCESS_DEBUG)
+            qDebug( "QProcess::socketRead(): stderr (%d) closed", fd );
+#endif
+            d->notifierStderr->setEnabled( FALSE );
+            delete d->notifierStderr;
+            d->notifierStderr = 0;
+            ::close( d->proc->socketStderr );
+            d->proc->socketStderr = 0;
+            return;
+        }
+    }
+    // read all data that is available
+    while ( n == bufsize ) {
+        oldSize = buffer->size();
+        buffer->resize( oldSize + bufsize );
+        n = ::read( fd, buffer->data()+oldSize, bufsize );
+        if ( n > 0 )
+            buffer->resize( oldSize + n );
+        else
+            buffer->resize( oldSize );
+    }
+
+    d->socketReadCalled = TRUE;
+    if ( fd == d->proc->socketStdout ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::socketRead(): %d bytes read from stdout (%d)",
+                buffer->size()-oldSize, fd );
+#endif
+        emit readyReadStdout();
+    } else if ( fd == d->proc->socketStderr ) {
+#if defined(QT_QPROCESS_DEBUG)
+        qDebug( "QProcess::socketRead(): %d bytes read from stderr (%d)",
+                buffer->size()-oldSize, fd );
+#endif
+        emit readyReadStderr();
+    }
+    d->socketReadCalled = FALSE;
+}
+
+
+/*
+  This private slot is called when the process tries to read data from standard
+  input.
+*/
+void QProcess::socketWrite( int fd )
+{
+    if ( fd != d->proc->socketStdin || d->proc->socketStdin == 0 )
+        return;
+    if ( d->stdinBuf.isEmpty() ) {
+        d->notifierStdin->setEnabled( FALSE );
+        return;
+    }
+#if defined(QT_QPROCESS_DEBUG)
+    qDebug( "QProcess::socketWrite(): write to stdin (%d)", fd );
+#endif
+    ssize_t ret = ::write( fd,
+            d->stdinBuf.head()->data() + d->stdinBufRead,
+            d->stdinBuf.head()->size() - d->stdinBufRead );
+    if ( ret > 0 )
+        d->stdinBufRead += ret;
+    if ( d->stdinBufRead == (ssize_t)d->stdinBuf.head()->size() ) {
+        d->stdinBufRead = 0;
+        delete d->stdinBuf.dequeue();
+        if ( wroteToStdinConnected && d->stdinBuf.isEmpty() )
+            emit wroteToStdin();
+        socketWrite( fd );
+    }
+}
+
+/*!
+  \internal
+  Flushes standard input. This is useful if you want to use QProcess in a
+  synchronous manner.
+
+  This function should probably go into the public API.
+*/
+void QProcess::flushStdin()
+{
+    socketWrite( d->proc->socketStdin );
+}
+
+/*
+  This private slot is only used under Windows (but moc does not know about #if
+  defined()).
+*/
+void QProcess::timeout()
+{
+}
+
+
+/*
+  This private function is used by connectNotify() and disconnectNotify() to
+  change the value of ioRedirection (and related behaviour)
+*/
+void QProcess::setIoRedirection( bool value )
+{
+    ioRedirection = value;
+    if ( ioRedirection ) {
+        if ( d->notifierStdout )
+            d->notifierStdout->setEnabled( TRUE );
+        if ( d->notifierStderr )
+            d->notifierStderr->setEnabled( TRUE );
+    } else {
+        if ( d->notifierStdout )
+            d->notifierStdout->setEnabled( FALSE );
+        if ( d->notifierStderr )
+            d->notifierStderr->setEnabled( FALSE );
+    }
+}
+
+/*
+  This private function is used by connectNotify() and
+  disconnectNotify() to change the value of notifyOnExit (and related
+  behaviour)
+*/
+void QProcess::setNotifyOnExit( bool value )
+{
+    notifyOnExit = value;
+}
+
+/*
+  This private function is used by connectNotify() and disconnectNotify() to
+  change the value of wroteToStdinConnected (and related behaviour)
+*/
+void QProcess::setWroteStdinConnected( bool value )
+{
+    wroteToStdinConnected = value;
+}
+
+/*! \enum QProcess::PID
+  \internal
+*/
+/*!
+  Returns platform dependent information about the process. This can be used
+  together with platform specific system calls.
+
+  Under Unix the return value is the PID of the process, or -1 if no process is
+  belonging to this object.
+
+  Under Windows it is a pointer to the \c PROCESS_INFORMATION struct, or 0 if
+  no process is belonging to this object.
+*/
+QProcess::PID QProcess::processIdentifier()
+{
+    if ( d->proc == 0 )
+        return -1;
+    return d->proc->pid;
+}
+
+int QProcess::priority() const
+{
+    if ( d->proc )
+        return getpriority(PRIO_PROCESS,d->proc->pid);
+    return 0;
+}
+
+void QProcess::setPriority(int p)
+{
+    if ( d->proc )
+        setpriority(PRIO_PROCESS,d->proc->pid,p);
+}
+
+
+#endif // QT_NO_PROCESS