processlist: prepare for all desktop devices having a processlist

Change-Id: I0b1a7c51bfcfcd53efa87b678da513b6b546c55c
Reviewed-by: hjk <qthjk@ovi.com>

1 files changed, 125 insertions, 0 deletions

diff --git a/src/plugins/projectexplorer/devicesupport/localprocesslist.cpp b/src/plugins/projectexplorer/devicesupport/localprocesslist.cpp
new file mode 100644
index 0000000000..8b7e1c844d
--- /dev/null
+++ b/src/plugins/projectexplorer/devicesupport/localprocesslist.cpp
@@ -0,0 +1,125 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: http://www.qt-project.org/
+**
+** 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.
+**
+** 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.
+**
+**
+**************************************************************************/
+
+#include "localprocesslist.h"
+
+#include <QProcess>
+#include <QTimer>
+
+#include <errno.h>
+#include <string.h>
+
+#ifdef Q_OS_UNIX
+//#include <sys/types.h>
+#include <signal.h>
+#endif
+
+namespace ProjectExplorer {
+namespace Internal {
+const int PsFieldWidth = 50;
+
+LocalProcessList::LocalProcessList(const IDevice::ConstPtr &device, QObject *parent)
+        : DeviceProcessList(device, parent),
+          m_psProcess(new QProcess(this))
+{
+    connect(m_psProcess, SIGNAL(error(QProcess::ProcessError)), SLOT(handlePsError()));
+    connect(m_psProcess, SIGNAL(finished(int)), SLOT(handlePsFinished()));
+}
+
+void LocalProcessList::doUpdate()
+{
+    // We assume Desktop Unix systems to have a POSIX-compliant ps.
+    // We need the padding because the command field can contain spaces, so we cannot split on those.
+    m_psProcess->start(QString::fromLocal8Bit("ps -e -o pid=%1 -o comm=%1 -o args=%1")
+                       .arg(QString(PsFieldWidth, QChar('x'))));
+}
+
+void LocalProcessList::handlePsFinished()
+{
+    QString errorString;
+    if (m_psProcess->exitStatus() == QProcess::CrashExit) {
+        errorString = tr("The ps process crashed.");
+    } else if (m_psProcess->exitCode() != 0) {
+        errorString = tr("The ps process failed with exit code %1.").arg(m_psProcess->exitCode());
+    } else {
+        const QString output = QString::fromLocal8Bit(m_psProcess->readAllStandardOutput());
+        QStringList lines = output.split(QLatin1Char('\n'), QString::SkipEmptyParts);
+        lines.removeFirst(); // Headers
+        QList<DeviceProcess> processes;
+        foreach (const QString &line, lines) {
+            if (line.count() < 2*PsFieldWidth) {
+                qDebug("%s: Ignoring malformed line", Q_FUNC_INFO);
+                continue;
+            }
+            DeviceProcess p;
+            p.pid = line.mid(0, PsFieldWidth).trimmed().toInt();
+            p.exe = line.mid(PsFieldWidth, PsFieldWidth).trimmed();
+            p.cmdLine = line.mid(2*PsFieldWidth).trimmed();
+            processes << p;
+        }
+        reportProcessListUpdated(processes);
+        return;
+    }
+
+    const QByteArray stderrData = m_psProcess->readAllStandardError();
+    if (!stderrData.isEmpty()) {
+        errorString += QLatin1Char('\n') + tr("The stderr output was: '%1'")
+            .arg(QString::fromLocal8Bit(stderrData));
+    }
+    reportError(errorString);
+}
+
+void LocalProcessList::handlePsError()
+{
+    // Other errors are handled in the finished() handler.
+    if (m_psProcess->error() == QProcess::FailedToStart)
+        reportError(m_psProcess->errorString());
+}
+
+void LocalProcessList::doKillProcess(const DeviceProcess &process)
+{
+#ifdef Q_OS_UNIX
+    if (kill(process.pid, SIGKILL) == -1)
+        m_error = QString::fromLocal8Bit(strerror(errno));
+    else
+        m_error.clear();
+    QTimer::singleShot(0, this, SLOT(reportDelayedKillStatus()));
+#endif
+}
+
+void LocalProcessList::reportDelayedKillStatus()
+{
+    if (m_error.isEmpty())
+        reportProcessKilled();
+    else
+        reportError(m_error);
+}
+
+} // namespace Internal
+} // namespace RemoteLinux