dataslave.h

/*
 *  This file is part of the KDE libraries
 *  Copyright (c) 2003 Leo Savernik <l.savernik@aon.at>
 *  Derived from slave.h
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License version 2 as published by the Free Software Foundation.
 *
 *  This library 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
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 **/
 
#ifndef __TDEIO_DATASLAVE_H__
#define __TDEIO_DATASLAVE_H__
 
#include <tdeio/global.h>
#include <tdeio/slave.h>
 
class TQTimer;
 
// don't forget to sync DISPATCH_IMPL in dataslave.h
#define DISPATCH_DECL(type) \
    void dispatch_##type();
 
// don't forget to sync DISPATCH_IMPL1 in dataslave.h
#define DISPATCH_DECL1(type, paramtype, param) \
    void dispatch_##type(paramtype param);
 
namespace TDEIO {

    class DataSlave : public TDEIO::Slave {
    TQ_OBJECT
    public:
    DataSlave();
 
        virtual ~DataSlave();
 
        virtual void setHost(const TQString &host, int port,
            const TQString &user, const TQString &passwd);
    virtual void setConfig(const MetaData &config);
 
        virtual void suspend();
        virtual void resume();
        virtual bool suspended();
        virtual void send(int cmd, const TQByteArray &data = TQByteArray());
 
    virtual void hold(const KURL &url);
 
    // pure virtual methods that are defined by the actual protocol
    virtual void get(const KURL &url) = 0;
    virtual void mimetype(const KURL &url) = 0;
 
    protected:
    void setAllMetaData(const MetaData &);
    void sendMetaData();
 
    // queueing methods
    enum QueueType { Queue_mimeType = 1, Queue_totalSize,
        Queue_sendMetaData, Queue_data, Queue_finished };

    struct QueueStruct {
      QueueType type;
      TQString s;
      TDEIO::filesize_t size;
      TQByteArray ba;
 
      QueueStruct() {}
      QueueStruct(QueueType type) : type(type) {}
    };
        typedef TQValueList<QueueStruct> DispatchQueue;
    DispatchQueue dispatchQueue;
 
    DISPATCH_DECL1(mimeType, const TQString &, s)
    DISPATCH_DECL1(totalSize, TDEIO::filesize_t, size)
    DISPATCH_DECL(sendMetaData)
    DISPATCH_DECL1(data, const TQByteArray &, ba)
    DISPATCH_DECL(finished)
 
    protected slots:
    void dispatchNext();
    protected:
    virtual void virtual_hook( int id, void* data );
    private:
    MetaData meta_data;
    bool _suspended;
    TQTimer *timer;
    };
 
}
 
#undef DISPATCH_DECL
#undef DISPATCH_DECL1
 
#endif /*__TDEIO_DATASLAVE_H__*/