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/*
knprotocolclient.h
KNode, the KDE newsreader
Copyright (c) 1999-2001 the KNode authors.
See file AUTHORS for details
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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, US
*/
#ifndef KNPROTOCOLCLIENT_H
#define KNPROTOCOLCLIENT_H
#include <tqdatetime.h>
#include <tqthread.h>
#include <tqcstring.h>
#include <knserverinfo.h>
class TQStrList;
class KNJobData;
struct in_addr;
class KNProtocolClient : public TQThread {
public:
enum threadSignal { TSworkDone=0, TSjobStarted=1, TSconnect=2, TSloadGrouplist=3,
TSwriteGrouplist=4, TSdownloadGrouplist=5, TSdownloadNew=6,
TSsortNew=7, TSdownloadArticle=8, TSsendArticle=9, TSsendMail=10,
TSprogressUpdate=11, TSdownloadDesc=12, TSdownloadNewGroups=13 };
KNProtocolClient(int NfdPipeIn, int NfdPipeOut);
~KNProtocolClient();
virtual void run();
void insertJob(KNJobData *newJob);
void removeJob();
void updatePercentage(int percent);
int getProgressValue() const { return progressValue; };
/** bytes in&out for the current connection */
int getByteCount() const { return byteCount; };
bool isInByteCountMode() const { return byteCountMode; };
void terminateClient() { mTerminate = true; }
protected:
/** main loop, maintains connection and waits for next job */
void waitForWork();
/** examines the job and calls the suitable handling method */
virtual void processJob();
/** connect, handshake and authorization */
virtual bool openConnection();
bool isConnected() { return (tcpSocket!=-1); };
/** sends QUIT-command and closes the socket */
virtual void closeConnection();
/** sends a command (one line), return code is written to rep */
virtual bool sendCommand(const TQCString &cmd, int &rep);
/** checks return code and calls handleErrors() if necessary */
bool sendCommandWCheck(const TQCString &cmd, int rep);
/** sends a message (multiple lines) */
bool sendMsg(const TQCString &msg);
/** reads next complete line of input */
bool getNextLine();
/** returns pointer to current line of input */
char* getCurrentLine() { return thisLine; };
/** receives a message (multiple lines) */
bool getMsg(TQStrList &msg);
/** reads next line and returns the response code */
bool getNextResponse(int &rep);
/** checks return code and calls handleErrors() if necessary */
bool checkNextResponse(int rep);
/** interprets error code, generates error message and closes the connection */
virtual void handleErrors();
void sendSignal(threadSignal s);
KNJobData *job;
KNServerInfo account;
/** handleErrors() adds this string to the error message */
TQString errorPrefix;
int progressValue, predictedLines, doneLines;
bool byteCountMode;
private:
/** waits until socket is readable */
bool waitForRead();
/** waits until socket is writeable */
bool waitForWrite();
void closeSocket();
/** sends str to the server */
bool sendStr(const TQCString &str);
/** removes start/stop signal */
void clearPipe();
char *input;
char *thisLine, *nextLine, *inputEnd;
unsigned int inputSize;
/** IPC-Pipes to/from async thread */
int fdPipeIn,fdPipeOut;
int tcpSocket;
/** bytes in&out for the current connection */
int byteCount;
TQTime timer;
bool mTerminate;
};
#endif
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