iCommand.h

/* Copyright (c) 2006-2017, Stefan Eilemann <eile@equalizergraphics.com>
 *                          Daniel Nachbaur <danielnachbaur@gmail.com>
 *
 * This file is part of Collage <https://github.com/Eyescale/Collage>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef CO_ICOMMAND_H
#define CO_ICOMMAND_H

#include <co/api.h>
#include <co/commands.h>    // for enum CommandType
#include <co/dataIStream.h> // base class

namespace co
{
namespace detail
{
class ICommand;
}

class ICommand : public DataIStream
{
public:
    CO_API ICommand(); 
    CO_API ICommand(LocalNodePtr local, NodePtr remote,
                    ConstBufferPtr buffer); 
    CO_API ICommand(const ICommand& rhs);   

    CO_API virtual ~ICommand(); 

    CO_API ICommand& operator=(const ICommand& rhs); 

    CO_API void clear(); 

    CO_API uint32_t getType() const;

    CO_API uint32_t getCommand() const;

    CO_API uint64_t getSize() const;

    template <typename T>
    T get()
    {
        return read<T>();
    }

    NodePtr getNode() const { return getRemoteNode(); }
    CO_API NodePtr getRemoteNode() const override;

    CO_API LocalNodePtr getLocalNode() const override;

    CO_API bool isValid() const;

    CO_API ConstBufferPtr getBuffer() const;

    CO_API void setType(const CommandType type);

    CO_API void setCommand(const uint32_t cmd);

    void setDispatchFunction(const Dispatcher::Func& func);

    CO_API bool operator()();

private:
    detail::ICommand* const _impl;

    friend CO_API std::ostream& operator<<(std::ostream&, const ICommand&);

    CO_API size_t nRemainingBuffers() const override;
    CO_API uint128_t getVersion() const override;
    CO_API bool getNextBuffer(CompressorInfo&, uint32_t&, const void*&,
                              uint64_t&) override;

    void _skipHeader(); 
};

CO_API std::ostream& operator<<(std::ostream& os, const ICommand&);
}
#endif // CO_ICOMMAND_H