/*
 * PlatformValues.cpp
 *
 *  Created on: 29 èþë. 2021 ã.
 *      Author: titov
 */

#include "PlatformValues.hh"

#include <cmath>
#include <cstring>

using namespace systemic;

SignalImpl::SignalImpl( std::pair<const char *, std::size_t> (* platform_info)( std::size_t info_id ),
                        std::size_t info_id,
                        std::size_t offset ) : platform_info(platform_info), id(info_id), offset(offset) {}

SignalImpl::operator float() const {

    std::pair<const char *, std::size_t> data = platform_info( id );

    if( data.second < sizeof(float) + offset )
        return NAN;

    std::memcpy( reinterpret_cast<void *>( &value ), data.first + offset, sizeof(float) );

    return value;

}

StatusImpl::StatusImpl( std::pair<const char *, std::size_t> (* platform_info)( std::size_t info_id ),
                        std::size_t info_id,
                        std::size_t offset ) : platform_info(platform_info), id(info_id), offset(offset) {}

StatusImpl::operator bool() const {

    std::pair<const char *, std::size_t> data = platform_info( id );

    if( data.second < sizeof(bool) + offset )
        return NAN;

    std::memcpy( reinterpret_cast<void *>( &value ), data.first + offset, sizeof(float) );

    return value;

}