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/* -------------------------------------------------------------
dict.h (part of The TDE Dictionary Client)
Copyright (C) 2000-2001 Christian Gebauer <[email protected]>
(C) by Matthias Hölzer 1998
This file is distributed under the Artistic License.
See LICENSE for details.
-------------------------------------------------------------
JobData used for data transfer between Client and Interface
DictAsyncClient all network related stuff happens here in an asynchrous thread
DictInterface interface for DictAsyncClient, job management
-------------------------------------------------------------*/
#ifndef _DICT_H_
#define _DICT_H_
#include <ntqthread.h>
#include <tqptrlist.h>
#include <tqsocketnotifier.h>
class TQSocketNotifier;
struct in_addr;
//********* JobData ******************************************
class JobData
{
public:
enum QueryType { //type of transaction
TDefine=0,
TGetDefinitions,
TMatch,
TShowDatabases,
TShowDbInfo,
TShowStrategies,
TShowInfo,
TUpdate
};
enum ErrType { // error codes
ErrNoErr=0,
ErrCommunication, // display result!
ErrTimeout,
ErrBadHost,
ErrConnect, // display result!
ErrRefused,
ErrNotAvailable,
ErrSyntax,
ErrCommandNotImplemented,
ErrAccessDenied,
ErrAuthFailed,
ErrInvalidDbStrat,
ErrNoDatabases,
ErrNoStrategies,
ErrServerError, // display result!
ErrMsgTooLong
};
JobData(QueryType Ntype,bool NnewServer,TQString const& Nserver,int Nport,
int NidleHold, int Ntimeout, int NpipeSize, TQString const& Nencoding, bool NAuthEnabled,
TQString const& Nuser, TQString const& Nsecret, unsigned int NheadLayout);
QueryType type;
ErrType error;
bool canceled;
int numFetched;
TQString result;
TQStringList matches;
TQString query;
TQStringList defines;
bool newServer;
TQString server;
int port, timeout, pipeSize, idleHold;
TQString encoding;
bool authEnabled;
TQString user, secret;
TQStringList databases,strategies;
TQString strategy;
unsigned int headLayout;
};
//********* DictAsyncClient ******************************************
class DictAsyncClient : public TQThread
{
public:
DictAsyncClient(int NfdPipeIn, int NfdPipeOut);
~DictAsyncClient();
void run(); // main loop
void request_termination() { m_request_termination = true; }
void insertJob(JobData *newJob);
void removeJob();
private:
void define();
bool getDefinitions();
bool match();
void showDatabases();
void showDbInfo();
void showStrategies();
void showInfo();
void update();
void openConnection(); // connect, handshake and authorization
void closeSocket();
void doQuit(); // send "quit" without timeout, without checks, close connection
bool waitForRead(); // used by getNextIntoBuffer()
bool waitForWrite(); // used by sendBuffer() & connect()
void clearPipe(); // remove start/stop signal
bool sendBuffer(); // send cmdBuffer to the server
bool getNextLine(); // set thisLine to next complete line of input
bool nextResponseOk(int code); // reads next line and checks the response code
bool getNextResponse(int &code); // reads next line and returns the response code
void handleErrors();
void resultAppend(const char* str);
void resultAppend(TQString str);
JobData *job;
char *input;
TQCString cmdBuffer;
const unsigned int inputSize;
char *thisLine, *nextLine, *inputEnd;
int fdPipeIn,fdPipeOut; //IPC-Pipes to/from async thread
int tcpSocket,timeout,idleHold;
TQTextCodec *codec;
bool m_request_termination;
};
//********* DictInterface *************************************************
class DictInterface : public TQObject
{
Q_OBJECT
public:
DictInterface();
~DictInterface();
public slots:
void serverChanged(); // inform the client when server settings get changed
void stop(); // cancel all pending jobs
void define(const TQString &query);
void getDefinitions(TQStringList query);
void match(const TQString &query);
void showDbInfo(const TQString &db); // fetch detailed db info
void showDatabases(); // fetch misc. info...
void showStrategies();
void showInfo();
void updateServer(); // get info about databases & strategies the server knows
signals:
void infoReady(); // updateServer done
void resultReady(const TQString &result, const TQString &query); // define done
void matchReady(const TQStringList &result); // match done
void started(const TQString &message); // Client is active now, activate indicator
void stopped(const TQString &message); // Client is now halted, deactivate indicator
private slots:
void clientDone();
private:
JobData* generateQuery(JobData::QueryType type, TQString query);
void insertJob(JobData* job); // insert in job list, if nesscary cancel/remove previous jobs
void startClient(); // send start signal
void cleanPipes(); // empty the pipes, so that notifier stops firing
TQSocketNotifier *notifier;
int fdPipeIn[2],fdPipeOut[2]; //IPC-Pipes to/from async thread
DictAsyncClient *client;
TQPtrList<JobData> jobList;
bool newServer,clientDoneInProgress;
};
extern DictInterface *interface;
#endif
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