demarshaling.h

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// SPDX-License-Identifier: LGPL-3.0-or-later OR BSD-3-Clause
/***************************************************************************
 *   Copyright (C) 2020 by Robert Middleton                                *
 *   robert.middleton@rm5248.com                                           *
 *                                                                         *
 *   This file is part of the dbus-cxx library.                            *
 ***************************************************************************/
#ifndef DBUSCXX_DEMARSHALING_H
#define DBUSCXX_DEMARSHALING_H
 
#include <stdint.h>
#include <dbus-cxx/variant.h>
#include <dbus-cxx/path.h>
#include <dbus-cxx/signature.h>
#include <dbus-cxx/enums.h>
#include <dbus-cxx/dbus-cxx-config.h>
#include <memory>
 
namespace DBus {
 
class Demarshaling {
public:
    Demarshaling();
 
    Demarshaling( const uint8_t* data, uint32_t dataLen, Endianess endian );
 
    ~Demarshaling();
 
    void set_data( const uint8_t* data, uint32_t dataLen );
 
    void set_endianess( Endianess endian );
 
    void set_data_offset( uint32_t offset );
 
    void align( int alignment );
 
    uint32_t current_offset() const;
 
    uint8_t demarshal_uint8_t();
    bool demarshal_boolean();
    int16_t demarshal_int16_t();
    uint16_t demarshal_uint16_t();
    int32_t demarshal_int32_t();
    uint32_t demarshal_uint32_t();
    int64_t demarshal_int64_t();
    uint64_t demarshal_uint64_t();
    double demarshal_double();
    std::string demarshal_string();
    Path demarshal_path();
    Signature demarshal_signature();
    Variant demarshal_variant();
 
private:
    void is_valid( uint32_t numBytesWanted );
    int16_t demarshalShortBig();
    int16_t demarshalShortLittle();
    int32_t demarshalIntBig();
    int32_t demarshalIntLittle();
    int64_t demarshalLongBig();
    int64_t demarshalLongLittle();
 
private:
    class priv_data;
 
    DBUS_CXX_PROPAGATE_CONST( std::unique_ptr<priv_data> ) m_priv;
};
 
}
 
#endif /* DBUSCXX_DEMARSHALING_H */