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authorChris Craig <craig@ics.com>2013-03-04 16:11:20 -0500
committerChris Craig <craig@ics.com>2013-03-08 20:24:24 +0100
commitb3c127ab0d29f9d245a9639c216caedf4a41ca69 (patch)
tree960b31c61ad886b57ce7574cf8cedb681db6d227 /src/core/unixprocessbackend.cpp
parentef76057dda0eef59b5fc1d98e2cdec9a63363814 (diff)
Build and test fixes for released Qt 5.0
Change-Id: I9ab9c56444e926d298aadfedc9913f2394837083 Reviewed-by: Chris Craig <craig@ics.com>
Diffstat (limited to 'src/core/unixprocessbackend.cpp')
-rw-r--r--src/core/unixprocessbackend.cpp354
1 files changed, 0 insertions, 354 deletions
diff --git a/src/core/unixprocessbackend.cpp b/src/core/unixprocessbackend.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "unixprocessbackend.h"
-#include "unixsandboxprocess.h"
-#include "procutils.h"
-#include <sys/resource.h>
-#include <errno.h>
-#include <signal.h>
-#include <QDebug>
-
-QT_BEGIN_NAMESPACE_PROCESSMANAGER
-
-/*!
- \class UnixProcessBackend
- \brief The UnixProcessBackend class wraps a QProcess object
-*/
-
-/*!
- Construct a UnixProcessBackend with ProcessInfo \a info and optional \a parent
-*/
-
-UnixProcessBackend::UnixProcessBackend(const ProcessInfo& info, QObject *parent)
- : ProcessBackend(info, parent)
- , m_process(0)
-{
-}
-
-/*!
- Destroy this process object.
- Any created QProcess is a child of this object, so it will be automatically terminated.
- We have to do some special processing to terminate the process group.
-*/
-
-UnixProcessBackend::~UnixProcessBackend()
-{
- if (m_process && m_process->state() != QProcess::NotRunning)
- ProcUtils::sendSignalToProcess(m_process->pid(), SIGKILL);
-}
-
-/*!
- Returns the PID of this process. If the process has not started up yet properly, its PID will be 0.
-*/
-Q_PID UnixProcessBackend::pid() const
-{
- if (m_process)
- return m_process->pid();
- return ProcessBackend::pid();
-}
-
-/*!
- Return the actual process priority (if running)
-*/
-
-qint32 UnixProcessBackend::actualPriority() const
-{
- if (m_process) {
- errno = 0; // getpriority can return -1, so we clear errno
- int result = getpriority(PRIO_PROCESS, m_process->pid());
- if (!errno)
- return result;
- }
- return ProcessBackend::actualPriority();
-}
-
-/*!
- Set the process priority to \a priority. If the process
- is in its own process group, we fix the process priority
- of the entire group.
-*/
-
-void UnixProcessBackend::setDesiredPriority(qint32 priority)
-{
- ProcessBackend::setDesiredPriority(priority);
- if (m_process)
- ProcUtils::setPriority(m_process->pid(), priority);
-}
-
-#if defined(Q_OS_LINUX)
-
-/*!
- Return the process oomAdjustment
-*/
-
-qint32 UnixProcessBackend::actualOomAdjustment() const
-{
- // ### TODO: What if m_process doesn't have a valid PID yet?
-
- if (m_process) {
- bool ok;
- qint32 result = ProcUtils::oomAdjustment(m_process->pid(), &ok);
- if (ok)
- return result;
- qWarning() << "Unable to read oom adjustment for" << m_process->pid();
- }
- return ProcessBackend::actualOomAdjustment();
-}
-
-/*!
- Set the process /proc/<pid>/oom_score_adj to \a oomAdjustment
-*/
-
-void UnixProcessBackend::setDesiredOomAdjustment(qint32 oomAdjustment)
-{
- ProcessBackend::setDesiredOomAdjustment(oomAdjustment);
- if (m_process) {
- if (!ProcUtils::setOomAdjustment(m_process->pid(), oomAdjustment))
- qWarning() << "Unable to set oom adjustment for" << m_process->pid();
- }
-}
-
-#endif // defined(Q_OS_LINUX)
-
-/*!
- Returns the state of the process.
- The base class always returns NotRunning.
-*/
-QProcess::ProcessState UnixProcessBackend::state() const
-{
- return m_process ? m_process->state() : QProcess::NotRunning;
-}
-
-/*!
- Internal function to create the QProcess.
- Returns true if a process was created.
-*/
-bool UnixProcessBackend::createProcess()
-{
- if (m_process) {
- qWarning() << "Can't restart process!";
- return false;
- }
-
- qint64 uid = (m_info.contains(ProcessInfoConstants::Uid) ? m_info.uid() : -1);
- qint64 gid = (m_info.contains(ProcessInfoConstants::Gid) ? m_info.gid() : -1);
- m_process = new UnixSandboxProcess(uid, gid, m_info.umask(), m_info.dropCapabilities(), this);
-
- m_process->setReadChannel(QProcess::StandardOutput);
- connect(m_process, SIGNAL(readyReadStandardOutput()),
- this, SLOT(readyReadStandardOutput()));
- connect(m_process, SIGNAL(readyReadStandardError()),
- this, SLOT(readyReadStandardError()));
- connect(&m_killTimer, SIGNAL(timeout()), this, SLOT(killTimeout()));
-
- connect(m_process, SIGNAL(started()), this, SLOT(unixProcessStarted()));
- connect(m_process,SIGNAL(error(QProcess::ProcessError)),
- this,SLOT(unixProcessError(QProcess::ProcessError)));
- connect(m_process,SIGNAL(finished(int, QProcess::ExitStatus)),
- this,SLOT(unixProcessFinished(int, QProcess::ExitStatus)));
- connect(m_process, SIGNAL(stateChanged(QProcess::ProcessState)),
- this,SLOT(unixProcessStateChanged(QProcess::ProcessState)));
- return true;
-}
-
-/*!
- Internal function to start the QProcess running.
-*/
-
-void UnixProcessBackend::startProcess()
-{
- QProcessEnvironment env;
- QMapIterator<QString, QVariant> it(m_info.environment());
- while (it.hasNext()) {
- it.next();
- env.insert(it.key(), it.value().toString());
- }
- m_process->setProcessEnvironment(env);
- m_process->setWorkingDirectory(m_info.workingDirectory());
- m_process->start(m_info.program(), m_info.arguments());
- // qDebug() << Q_FUNC_INFO << "Started process" << m_info.program();
-}
-
-/*!
- Attempts to stop a process by giving it a \a timeout time to die, measured in milliseconds.
-
- If the process does not die in the given time limit, it is killed.
-
- \sa finished()
-*/
-
-void UnixProcessBackend::stop(int timeout)
-{
- Q_ASSERT(m_process);
-
- if (m_process->state() != QProcess::NotRunning) {
- if (timeout > 0) {
- ProcUtils::sendSignalToProcess(m_process->pid(), SIGTERM);
- m_killTimer.start(timeout);
- }
- else {
- ProcUtils::sendSignalToProcess(m_process->pid(), SIGKILL);
- }
- }
-}
-
-/*!
- Writes at most \a maxSize bytes of data from \a data to the device.
- Returns the number of bytes that were actually written, or -1 if an error occurred.
-*/
-qint64 UnixProcessBackend::write(const char *data, qint64 maxSize)
-{
- if (m_process)
- return m_process->write(data, maxSize);
- return 0;
-}
-
-/*!
- Override this in subclasses. Make sure you call the parent class.
- Your subclass should emit \sa started()
-*/
-void UnixProcessBackend::handleProcessStarted()
-{
- if (m_info.contains(ProcessInfoConstants::Priority))
- ProcUtils::setPriority(m_process->pid(), m_info.priority());
-
- if (m_info.contains(ProcessInfoConstants::OomAdjustment) &&
- !ProcUtils::setOomAdjustment(m_process->pid(), m_info.oomAdjustment()))
- qWarning() << "Failed to set process oom score at startup from " << actualOomAdjustment() <<
- "to" << m_info.oomAdjustment();
-}
-/*!
- Override this in subclasses. Make sure you call the parent class with \a error.
- Your subclass should emit \sa error()
-*/
-void UnixProcessBackend::handleProcessError(QProcess::ProcessError error)
-{
- Q_UNUSED(error);
-}
-
-/*!
- Override this in subclasses. Make sure you call the parent class with \a exitCode
- and \a exitStatus. Your subclass should emit \sa finished()
-*/
-void UnixProcessBackend::handleProcessFinished(int exitCode, QProcess::ExitStatus exitStatus)
-{
- Q_UNUSED(exitCode);
- Q_UNUSED(exitStatus);
- m_killTimer.stop();
-}
-
-/*!
- Override this in subclasses. Make sure you call the parent class with \a state.
- Your subclass should emit \sa stateChanged()
-*/
-void UnixProcessBackend::handleProcessStateChanged(QProcess::ProcessState state)
-{
- Q_UNUSED(state);
- m_killTimer.stop();
-}
-
-/*!
- \internal
-*/
-void UnixProcessBackend::unixProcessStarted()
-{
- handleProcessStarted();
-}
-
-/*!
- \internal
-*/
-void UnixProcessBackend::unixProcessError(QProcess::ProcessError error)
-{
- handleProcessError(error);
-}
-
-/*!
- \internal
-*/
-void UnixProcessBackend::unixProcessFinished(int exitCode, QProcess::ExitStatus exitStatus)
-{
- handleProcessFinished(exitCode, exitStatus);
-}
-
-/*!
- \internal
-*/
-void UnixProcessBackend::unixProcessStateChanged(QProcess::ProcessState state)
-{
- handleProcessStateChanged(state);
-}
-
-/*!
- \internal
-*/
-void UnixProcessBackend::killTimeout()
-{
- if (m_process && m_process->state() == QProcess::Running)
- m_process->kill();
-}
-
-/*!
- \internal
-*/
-void UnixProcessBackend::readyReadStandardOutput()
-{
- handleStandardOutput(m_process->readAllStandardOutput());
-}
-
-/*!
- \internal
-*/
-void UnixProcessBackend::readyReadStandardError()
-{
- handleStandardError(m_process->readAllStandardError());
-}
-
-/*!
- \internal
- */
-QString UnixProcessBackend::errorString() const
-{
- return m_process->errorString();
-}
-
-#include "moc_unixprocessbackend.cpp"
-
-QT_END_NAMESPACE_PROCESSMANAGER