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138 lines
3.7 KiB
138 lines
3.7 KiB
/*
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KSysGuard, the KDE System Guard
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Copyright (c) 1999, 2000 Chris Schlaeger <cs@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of version 2 of the GNU General Public
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License as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef KSG_SENSORAGENT_H
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#define KSG_SENSORAGENT_H
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#include <tqobject.h>
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#include <tqptrlist.h>
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class TDEProcess;
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class KShellProcess;
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class TQString;
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namespace KSGRD {
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class SensorClient;
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class SensorManager;
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class SensorRequest;
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/**
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The SensorAgent depending on the type of requested connection
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starts a ksysguardd process or connects through a tcp connection to
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a running ksysguardd and handles the asynchronous communication. It
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keeps a list of pending requests that have not been answered yet by
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ksysguardd. The current implementation only allowes one pending
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requests. Incoming requests are queued in an input FIFO.
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*/
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class KDE_EXPORT SensorAgent : public QObject
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{
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Q_OBJECT
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public:
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SensorAgent( SensorManager *sm );
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virtual ~SensorAgent();
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virtual bool start( const TQString &host, const TQString &shell,
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const TQString &command = "", int port = -1 ) = 0;
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/**
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This function should only be used by the the SensorManager and
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never by the SensorClients directly since the pointer returned by
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engaged is not guaranteed to be valid. Only the SensorManager knows
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whether a SensorAgent pointer is still valid or not.
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This function sends out a command to the sensor and notifies the
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agent to return the answer to 'client'. The 'id' can be used by the
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client to identify the answer. It is only passed through and never
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used by the SensorAgent. So it can be any value the client suits to
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use.
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*/
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bool sendRequest( const TQString &req, SensorClient *client, int id = 0 );
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virtual void hostInfo( TQString &sh, TQString &cmd, int &port ) const = 0;
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void disconnectClient( SensorClient *client );
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const TQString &hostName() const;
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signals:
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void reconfigure( const SensorAgent* );
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protected:
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void processAnswer( const TQString &buffer );
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void executeCommand();
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SensorManager *sensorManager();
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void setDaemonOnLine( bool value );
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bool daemonOnLine() const;
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void setTransmitting( bool value );
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bool transmitting() const;
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void setHostName( const TQString &hostName );
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private:
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virtual bool writeMsg( const char *msg, int len ) = 0;
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virtual bool txReady() = 0;
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int mState;
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TQPtrList<SensorRequest> mInputFIFO;
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TQPtrList<SensorRequest> mProcessingFIFO;
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TQString mAnswerBuffer;
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TQString mErrorBuffer;
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SensorManager *mSensorManager;
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bool mDaemonOnLine;
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bool mTransmitting;
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TQString mHostName;
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};
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/**
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This auxilliary class is used to store requests during their processing.
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*/
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class SensorRequest
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{
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public:
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SensorRequest( const TQString &request, SensorClient *client, int id );
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~SensorRequest();
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void setRequest( const TQString& );
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TQString request() const;
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void setClient( SensorClient* );
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SensorClient *client();
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void setId( int );
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int id();
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private:
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TQString mRequest;
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SensorClient *mClient;
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int mId;
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};
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}
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#endif
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