workspace/plasma/dataengines/systemmonitor/systemmonitor.cpp

   1 /*
   2  *   Copyright (C) 2007 John Tapsell <tapsell@kde.org>
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU Library General Public License version 2 as
   6  *   published by the Free Software Foundation
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details
  12  *
  13  *   You should have received a copy of the GNU Library General Public
  14  *   License along with this program; if not, write to the
  15  *   Free Software Foundation, Inc.,
  16  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #include "systemmonitor.h"
  20
  21 #include <QTimer>
  22 #include <QProcess>
  23
  24 #include <KLocale>
  25
  26 #include <Plasma/DataContainer>
  27
  28 #include "../../ksysguard/gui/ksgrd/SensorManager.h"
  29
  30 SystemMonitorEngine::SystemMonitorEngine(QObject* parent, const QVariantList& args)
  31     : Plasma::DataEngine(parent)
  32 {
  33     Q_UNUSED(args)
  34
  35     KSGRD::SensorMgr = new KSGRD::SensorManager(this);
  36     KSGRD::SensorMgr->engage( "localhost", "", "ksysguardd" );
  37
  38     m_waitingFor= 0;
  39     KSGRD::SensorMgr->sendRequest( "localhost", "monitors", (KSGRD::SensorClient*)this, -1);
  40 }
  41
  42 SystemMonitorEngine::~SystemMonitorEngine()
  43 {
  44 }
  45
  46 QStringList SystemMonitorEngine::sources() const {
  47     return m_sensors;
  48 }
  49 bool SystemMonitorEngine::sourceRequestEvent(const QString &name)
  50 {
  51     return false;
  52 }
  53 bool SystemMonitorEngine::updateSourceEvent(const QString &sensorName)
  54 {
  55     KSGRD::SensorMgr->sendRequest( "localhost", sensorName, (KSGRD::SensorClient*)this, m_sensors.indexOf(sensorName));
  56     return false;
  57 }
  58
  59 void SystemMonitorEngine::updateSensors()
  60 {
  61     DataEngine::SourceDict sources = containerDict();
  62     DataEngine::SourceDict::iterator it = sources.begin();
  63     if(m_waitingFor != 0)
  64         scheduleSourcesUpdated();
  65     m_waitingFor = 0;
  66     while (it != sources.end()) {
  67         m_waitingFor++;
  68         QString sensorName = it.key();
  69         KSGRD::SensorMgr->sendRequest( "localhost", sensorName, (KSGRD::SensorClient*)this, -1);
  70         ++it;
  71     }
  72 }
  73
  74 void SystemMonitorEngine::answerReceived( int id, const QList<QByteArray>&answer ) {
  75     if(id==-1) {
  76         QStringList sensors;
  77         foreach(const QByteArray &sens, answer) {
  78                 QStringList newSensorInfo = QString::fromUtf8(sens).split('\t');
  79                 QString newSensor = newSensorInfo[0];
  80                 sensors.append(newSensor);
  81                 setData(newSensor, "value", QVariant());
  82         }
  83         m_sensors = sensors;
  84         return;
  85     }
  86     m_waitingFor--;
  87     QString reply;
  88     if(!answer.isEmpty())
  89         reply = QString::fromUtf8(answer[0]);
  90
  91     DataEngine::SourceDict sources = containerDict();
  92     DataEngine::SourceDict::const_iterator it = sources.constFind(m_sensors.value(id));
  93     if (it != sources.constEnd()) {
  94         it.value()->setData("value", reply);
  95     }
  96
  97     if(m_waitingFor == 0)
  98         scheduleSourcesUpdated();
  99 }
 100 void SystemMonitorEngine::sensorLost( int ) {
 101     m_waitingFor--;
 102 }
 103 #include "systemmonitor.moc"
 104