1 files changed, 137 insertions, 0 deletions
diff --git a/ksysguard/gui/ksgrd/SensorAgent.h b/ksysguard/gui/ksgrd/SensorAgent.h
new file mode 100644
index 000000000..e30deb510
--- /dev/null
+++ b/ksysguard/gui/ksgrd/SensorAgent.h
@@ -0,0 +1,137 @@
+/*
+    KSysGuard, the KDE System Guard
+   
+    Copyright (c) 1999, 2000 Chris Schlaeger <cs@kde.org>
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of version 2 of the GNU General Public
+    License as published by the Free Software Foundation.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+*/
+
+#ifndef KSG_SENSORAGENT_H
+#define KSG_SENSORAGENT_H
+
+#include <qobject.h>
+#include <qptrlist.h>
+
+class KProcess;
+class KShellProcess;
+
+class QString;
+
+namespace KSGRD {
+
+class SensorClient;
+class SensorManager;
+class SensorRequest;
+
+/**
+  The SensorAgent depending on the type of requested connection
+  starts a ksysguardd process or connects through a tcp connection to
+  a running ksysguardd and handles the asynchronous communication. It
+  keeps a list of pending requests that have not been answered yet by
+  ksysguardd. The current implementation only allowes one pending
+  requests. Incoming requests are queued in an input FIFO.
+*/
+class KDE_EXPORT SensorAgent : public QObject
+{
+  Q_OBJECT
+
+  public:
+    SensorAgent( SensorManager *sm );
+    virtual ~SensorAgent();
+
+    virtual bool start( const QString &host, const QString &shell,
+                        const QString &command = "", int port = -1 ) = 0;
+
+    /**
+      This function should only be used by the the SensorManager and
+      never by the SensorClients directly since the pointer returned by
+      engaged is not guaranteed to be valid. Only the SensorManager knows
+      whether a SensorAgent pointer is still valid or not.
+
+      This function sends out a command to the sensor and notifies the
+      agent to return the answer to 'client'. The 'id' can be used by the
+      client to identify the answer. It is only passed through and never
+      used by the SensorAgent. So it can be any value the client suits to
+      use.
+     */
+    bool sendRequest( const QString &req, SensorClient *client, int id = 0 );
+
+    virtual void hostInfo( QString &sh, QString &cmd, int &port ) const = 0;
+
+    void disconnectClient( SensorClient *client );
+
+    const QString &hostName() const;
+	
+  signals:
+    void reconfigure( const SensorAgent* );
+
+  protected:
+    void processAnswer( const QString &buffer );
+    void executeCommand();
+
+    SensorManager *sensorManager();
+
+    void setDaemonOnLine( bool value );
+    bool daemonOnLine() const;
+
+    void setTransmitting( bool value );
+    bool transmitting() const;
+
+    void setHostName( const QString &hostName );
+
+  private:
+    virtual bool writeMsg( const char *msg, int len ) = 0;
+    virtual bool txReady() = 0;
+
+    int mState;
+    QPtrList<SensorRequest> mInputFIFO;
+    QPtrList<SensorRequest> mProcessingFIFO;
+    QString mAnswerBuffer;
+    QString mErrorBuffer;
+
+    SensorManager *mSensorManager;
+
+    bool mDaemonOnLine;
+    bool mTransmitting;
+    QString mHostName;
+};
+
+/**
+  This auxilliary class is used to store requests during their processing.
+*/
+class SensorRequest
+{
+  public:
+    SensorRequest( const QString &request, SensorClient *client, int id );
+    ~SensorRequest();
+
+    void setRequest( const QString& );
+    QString request() const;
+
+    void setClient( SensorClient* );
+    SensorClient *client();
+
+    void setId( int );
+    int id();
+
+  private:
+    QString mRequest;
+    SensorClient *mClient;
+    int mId;
+};
+
+}
+	
+#endif