92 lines
1.8 KiB
C++
92 lines
1.8 KiB
C++
/* -*- C++ -*- */
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/*
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* Copyright 2008 Steve Glass
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*
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* This file is part of OP25.
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*
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* OP25 is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* OP25 is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OP25; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Boston, MA
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* 02110-1301, USA.
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*/
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#ifndef INCLUDED_LDU1_H
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#define INCLUDED_LDU1_H
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#include "ldu.h"
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/**
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* P25 Logical Data Unit 1.
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*/
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class ldu1 : public ldu
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{
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protected:
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void do_correct_errors(bit_vector& frame_body);
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public:
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struct base_meta_data
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{
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unsigned char lcf;
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unsigned char mfid;
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unsigned int source;
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unsigned short reserved;
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};
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struct meta_data_0 : public base_meta_data
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{
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bool emergency;
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unsigned short tgid;
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};
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struct meta_data_3 : public base_meta_data
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{
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unsigned int destination;
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};
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union combined_meta_data
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{
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base_meta_data m;
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meta_data_0 m0;
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meta_data_3 m3;
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} m_meta_data;
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public:
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/**
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* ldu1 constuctor
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*
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* \param frame_body A const_bit_queue representing the frame body.
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*/
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ldu1(const_bit_queue& frame_body);
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/**
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* ldu1 (virtual) destuctor
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*/
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virtual ~ldu1();
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/**
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* Returns a string describing the Data Unit ID (DUID).
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*/
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std::string duid_str() const;
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virtual std::string snapshot() const;
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combined_meta_data meta_data() const;
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};
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#endif /* INCLUDED_LDU1_H */
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