beam-id.cc

// Copyright (c) 2020 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
//
// SPDX-License-Identifier: GPL-2.0-only
 
#include "beam-id.h"
 
namespace ns3
{
const BeamId OMNI_BEAM_ID = BeamId(UINT16_MAX, UINT16_MAX);
const BeamId PREDEFINED_BEAM_ID = BeamId(UINT16_MAX - 1, UINT16_MAX - 1);
 
std::ostream&
operator<<(std::ostream& os, const BeamId& item)
{
    os << "[Sector: " << static_cast<uint16_t>(item.GetSector())
       << " elevation: " << item.GetElevation() << "]";
    return os;
}
 
BeamId::BeamId()
{
}
 
BeamId::BeamId(uint16_t sector, double elevation)
{
    m_sector = sector;
    m_elevation = elevation;
}
 
bool
BeamId::operator==(const BeamId& p) const
{
    return m_sector == p.GetSector() && m_elevation == p.GetElevation();
}
 
bool
BeamId::operator!=(const BeamId& p) const
{
    return (m_sector != p.GetSector() || m_elevation != p.GetElevation());
}
 
uint16_t
BeamId::GetSector() const
{
    return m_sector;
}
 
double
BeamId::GetElevation() const
{
    return m_elevation;
}
 
BeamId
BeamId::GetEmptyBeamId()
{
    return BeamId(0, 0);
}
 
static constexpr uint32_t
Cantor(uint16_t x1_16, uint16_t x2_16)
{
    uint32_t x1 = x1_16;
    uint32_t x2 = x2_16;
    return (((x1 + x2) * (x1 + x2 + 1)) / 2) + x2;
}
 
uint32_t
BeamId::GetCantor() const
{
    return Cantor(m_sector, static_cast<uint16_t>(m_elevation));
}
 
size_t
BeamIdHash::operator()(const BeamId& x) const
{
    return std::hash<uint32_t>()(x.GetCantor());
}
 
} /* namespace ns3 */