portapack-mayhem/firmware/common/message.hpp
2020-12-23 18:00:51 +03:00

1110 lines
22 KiB
C++

/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __MESSAGE_H__
#define __MESSAGE_H__
#include <cstdint>
#include <cstddef>
#include <cstring>
#include <array>
#include <functional>
#include <algorithm>
#include "baseband_packet.hpp"
#include "acars_packet.hpp"
#include "adsb_frame.hpp"
#include "ert_packet.hpp"
#include "pocsag_packet.hpp"
#include "sonde_packet.hpp"
#include "tpms_packet.hpp"
#include "jammer.hpp"
#include "dsp_fir_taps.hpp"
#include "dsp_iir.hpp"
#include "fifo.hpp"
#include "utility.hpp"
#include "ch.h"
class Message {
public:
static constexpr size_t MAX_SIZE = 512;
enum class ID : uint32_t {
/* Assign consecutive IDs. IDs are used to index array. */
RSSIStatistics = 0,
BasebandStatistics = 1,
ChannelStatistics = 2,
DisplayFrameSync = 3,
AudioStatistics = 4,
Shutdown = 5,
TPMSPacket = 6,
ACARSPacket = 7,
AISPacket = 8,
ERTPacket = 9,
SondePacket = 10,
UpdateSpectrum = 11,
NBFMConfigure = 12,
WFMConfigure = 13,
AMConfigure = 14,
ChannelSpectrumConfig = 15,
SpectrumStreamingConfig = 16,
DisplaySleep = 17,
CaptureConfig = 18,
CaptureThreadDone = 19,
ReplayConfig = 20,
ReplayThreadDone = 21,
AFSKRxConfigure = 22,
StatusRefresh = 23,
SamplerateConfig = 24,
BTLERxConfigure = 25,
NRFRxConfigure = 26,
TXProgress = 30,
Retune = 31,
TonesConfigure = 32,
AFSKTxConfigure = 33,
PitchRSSIConfigure = 34,
OOKConfigure = 35,
RDSConfigure = 36,
AudioTXConfig = 37,
POCSAGConfigure = 38,
DTMFTXConfig = 39,
ADSBConfigure = 40,
JammerConfigure = 41,
WidebandSpectrumConfig = 42,
FSKConfigure = 43,
SSTVConfigure = 44,
SigGenConfig = 43,
SigGenTone = 44,
POCSAGPacket = 45,
ADSBFrame = 46,
AFSKData = 47,
TestAppPacket = 48,
RequestSignal = 49,
FIFOData = 50,
AudioLevelReport = 51,
CodedSquelch = 52,
AudioSpectrum = 53,
MAX
};
constexpr Message(
ID id
) : id { id }
{
}
const ID id;
};
struct RSSIStatistics {
uint32_t accumulator { 0 };
uint32_t min { 0 };
uint32_t max { 0 };
uint32_t count { 0 };
};
class RSSIStatisticsMessage : public Message {
public:
constexpr RSSIStatisticsMessage(
const RSSIStatistics& statistics
) : Message { ID::RSSIStatistics },
statistics { statistics }
{
}
RSSIStatistics statistics;
};
struct BasebandStatistics {
uint32_t idle_ticks { 0 };
uint32_t main_ticks { 0 };
uint32_t rssi_ticks { 0 };
uint32_t baseband_ticks { 0 };
bool saturation { false };
};
class BasebandStatisticsMessage : public Message {
public:
constexpr BasebandStatisticsMessage(
const BasebandStatistics& statistics
) : Message { ID::BasebandStatistics },
statistics { statistics }
{
}
BasebandStatistics statistics;
};
struct ChannelStatistics {
int32_t max_db;
size_t count;
constexpr ChannelStatistics(
int32_t max_db = -120,
size_t count = 0
) : max_db { max_db },
count { count }
{
}
};
class ChannelStatisticsMessage : public Message {
public:
constexpr ChannelStatisticsMessage(
const ChannelStatistics& statistics
) : Message { ID::ChannelStatistics },
statistics { statistics }
{
}
ChannelStatistics statistics;
};
class DisplayFrameSyncMessage : public Message {
public:
constexpr DisplayFrameSyncMessage(
) : Message { ID::DisplayFrameSync }
{
}
};
struct AudioStatistics {
int32_t rms_db;
int32_t max_db;
size_t count;
constexpr AudioStatistics(
) : rms_db { -120 },
max_db { -120 },
count { 0 }
{
}
constexpr AudioStatistics(
int32_t rms_db,
int32_t max_db,
size_t count
) : rms_db { rms_db },
max_db { max_db },
count { count }
{
}
};
class DisplaySleepMessage : public Message {
public:
constexpr DisplaySleepMessage(
) : Message { ID::DisplaySleep }
{
}
};
class StatusRefreshMessage : public Message {
public:
constexpr StatusRefreshMessage(
) : Message { ID::StatusRefresh }
{
}
};
class AudioStatisticsMessage : public Message {
public:
constexpr AudioStatisticsMessage(
const AudioStatistics& statistics
) : Message { ID::AudioStatistics },
statistics { statistics }
{
}
AudioStatistics statistics;
};
class SpectrumStreamingConfigMessage : public Message {
public:
enum class Mode : uint32_t {
Stopped = 0,
Running = 1,
};
constexpr SpectrumStreamingConfigMessage(
Mode mode
) : Message { ID::SpectrumStreamingConfig },
mode { mode }
{
}
Mode mode { Mode::Stopped };
};
class WidebandSpectrumConfigMessage : public Message {
public:
constexpr WidebandSpectrumConfigMessage (
size_t sampling_rate,
size_t trigger
) : Message { ID::WidebandSpectrumConfig },
sampling_rate { sampling_rate },
trigger { trigger }
{
}
size_t sampling_rate { 0 };
size_t trigger { 0 };
};
struct AudioSpectrum {
std::array<uint8_t, 128> db { { 0 } };
//uint32_t sampling_rate { 0 };
};
class AudioSpectrumMessage : public Message {
public:
constexpr AudioSpectrumMessage(
AudioSpectrum* data
) : Message { ID::AudioSpectrum },
data { data }
{
}
AudioSpectrum* data { nullptr };
};
struct ChannelSpectrum {
std::array<uint8_t, 256> db { { 0 } };
uint32_t sampling_rate { 0 };
int32_t channel_filter_low_frequency { 0 };
int32_t channel_filter_high_frequency { 0 };
int32_t channel_filter_transition { 0 };
};
using ChannelSpectrumFIFO = FIFO<ChannelSpectrum>;
class ChannelSpectrumConfigMessage : public Message {
public:
static constexpr size_t fifo_k = 2;
constexpr ChannelSpectrumConfigMessage(
ChannelSpectrumFIFO* fifo
) : Message { ID::ChannelSpectrumConfig },
fifo { fifo }
{
}
ChannelSpectrumFIFO* fifo { nullptr };
};
class AISPacketMessage : public Message {
public:
constexpr AISPacketMessage(
const baseband::Packet& packet
) : Message { ID::AISPacket },
packet { packet }
{
}
baseband::Packet packet;
};
class TPMSPacketMessage : public Message {
public:
constexpr TPMSPacketMessage(
const tpms::SignalType signal_type,
const baseband::Packet& packet
) : Message { ID::TPMSPacket },
signal_type { signal_type },
packet { packet }
{
}
tpms::SignalType signal_type;
baseband::Packet packet;
};
class POCSAGPacketMessage : public Message {
public:
constexpr POCSAGPacketMessage(
const pocsag::POCSAGPacket& packet
) : Message { ID::POCSAGPacket },
packet { packet }
{
}
pocsag::POCSAGPacket packet;
};
class ACARSPacketMessage : public Message {
public:
constexpr ACARSPacketMessage(
const baseband::Packet& packet
) : Message { ID::ACARSPacket },
packet { packet }
{
}
baseband::Packet packet;
};
class ADSBFrameMessage : public Message {
public:
constexpr ADSBFrameMessage(
const adsb::ADSBFrame& frame
) : Message { ID::ADSBFrame },
frame { frame }
{
}
adsb::ADSBFrame frame;
};
class AFSKDataMessage : public Message {
public:
constexpr AFSKDataMessage(
const bool is_data,
const uint32_t value
) : Message { ID::AFSKData },
is_data { is_data },
value { value }
{
}
bool is_data;
uint32_t value;
};
class CodedSquelchMessage : public Message {
public:
constexpr CodedSquelchMessage(
const uint32_t value
) : Message { ID::CodedSquelch },
value { value }
{
}
uint32_t value;
};
class ShutdownMessage : public Message {
public:
constexpr ShutdownMessage(
) : Message { ID::Shutdown }
{
}
};
class ERTPacketMessage : public Message {
public:
constexpr ERTPacketMessage(
const ert::Packet::Type type,
const baseband::Packet& packet
) : Message { ID::ERTPacket },
type { type },
packet { packet }
{
}
ert::Packet::Type type;
baseband::Packet packet;
};
class SondePacketMessage : public Message {
public:
constexpr SondePacketMessage(
const sonde::Packet::Type type,
const baseband::Packet& packet
) : Message { ID::SondePacket },
type { type },
packet { packet }
{
}
sonde::Packet::Type type;
baseband::Packet packet;
};
class TestAppPacketMessage : public Message {
public:
constexpr TestAppPacketMessage(
const baseband::Packet& packet
) : Message { ID::TestAppPacket },
packet { packet }
{
}
baseband::Packet packet;
};
class UpdateSpectrumMessage : public Message {
public:
constexpr UpdateSpectrumMessage(
) : Message { ID::UpdateSpectrum }
{
}
};
class NBFMConfigureMessage : public Message {
public:
constexpr NBFMConfigureMessage(
const fir_taps_real<24> decim_0_filter,
const fir_taps_real<32> decim_1_filter,
const fir_taps_real<32> channel_filter,
const size_t channel_decimation,
const size_t deviation,
const iir_biquad_config_t audio_hpf_config,
const iir_biquad_config_t audio_deemph_config,
const uint8_t squelch_level
) : Message { ID::NBFMConfigure },
decim_0_filter(decim_0_filter),
decim_1_filter(decim_1_filter),
channel_filter(channel_filter),
channel_decimation { channel_decimation },
deviation { deviation },
audio_hpf_config(audio_hpf_config),
audio_deemph_config(audio_deemph_config),
squelch_level(squelch_level)
{
}
const fir_taps_real<24> decim_0_filter;
const fir_taps_real<32> decim_1_filter;
const fir_taps_real<32> channel_filter;
const size_t channel_decimation;
const size_t deviation;
const iir_biquad_config_t audio_hpf_config;
const iir_biquad_config_t audio_deemph_config;
const uint8_t squelch_level;
};
class WFMConfigureMessage : public Message {
public:
constexpr WFMConfigureMessage(
const fir_taps_real<24> decim_0_filter,
const fir_taps_real<16> decim_1_filter,
const fir_taps_real<64> audio_filter,
const size_t deviation,
const iir_biquad_config_t audio_hpf_config,
const iir_biquad_config_t audio_deemph_config
) : Message { ID::WFMConfigure },
decim_0_filter(decim_0_filter),
decim_1_filter(decim_1_filter),
audio_filter(audio_filter),
deviation { deviation },
audio_hpf_config(audio_hpf_config),
audio_deemph_config(audio_deemph_config)
{
}
const fir_taps_real<24> decim_0_filter;
const fir_taps_real<16> decim_1_filter;
const fir_taps_real<64> audio_filter;
const size_t deviation;
const iir_biquad_config_t audio_hpf_config;
const iir_biquad_config_t audio_deemph_config;
};
class AMConfigureMessage : public Message {
public:
enum class Modulation : int32_t {
DSB = 0,
SSB = 1,
};
constexpr AMConfigureMessage(
const fir_taps_real<24> decim_0_filter,
const fir_taps_real<32> decim_1_filter,
const fir_taps_real<32> decim_2_filter,
const fir_taps_complex<64> channel_filter,
const Modulation modulation,
const iir_biquad_config_t audio_hpf_config
) : Message { ID::AMConfigure },
decim_0_filter(decim_0_filter),
decim_1_filter(decim_1_filter),
decim_2_filter(decim_2_filter),
channel_filter(channel_filter),
modulation { modulation },
audio_hpf_config(audio_hpf_config)
{
}
const fir_taps_real<24> decim_0_filter;
const fir_taps_real<32> decim_1_filter;
const fir_taps_real<32> decim_2_filter;
const fir_taps_complex<64> channel_filter;
const Modulation modulation;
const iir_biquad_config_t audio_hpf_config;
};
// TODO: Put this somewhere else, or at least the implementation part.
class StreamBuffer {
uint8_t* data_;
size_t used_;
size_t capacity_;
public:
constexpr StreamBuffer(
void* const data = nullptr,
const size_t capacity = 0
) : data_ { static_cast<uint8_t*>(data) },
used_ { 0 },
capacity_ { capacity }
{
}
size_t write(const void* p, const size_t count) {
const auto copy_size = std::min(capacity_ - used_, count);
memcpy(&data_[used_], p, copy_size);
used_ += copy_size;
return copy_size;
}
size_t read(void* p, const size_t count) {
const auto copy_size = std::min(used_, count);
memcpy(p, &data_[capacity_ - used_], copy_size);
used_ -= copy_size;
return copy_size;
}
bool is_full() const {
return used_ >= capacity_;
}
bool is_empty() const {
return used_ == 0;
}
void* data() const {
return data_;
}
size_t size() const {
return used_;
}
size_t capacity() const {
return capacity_;
}
void set_size(const size_t value) {
used_ = value;
}
void empty() {
used_ = 0;
}
};
struct CaptureConfig {
const size_t write_size;
const size_t buffer_count;
uint64_t baseband_bytes_received;
uint64_t baseband_bytes_dropped;
FIFO<StreamBuffer*>* fifo_buffers_empty;
FIFO<StreamBuffer*>* fifo_buffers_full;
constexpr CaptureConfig(
const size_t write_size,
const size_t buffer_count
) : write_size { write_size },
buffer_count { buffer_count },
baseband_bytes_received { 0 },
baseband_bytes_dropped { 0 },
fifo_buffers_empty { nullptr },
fifo_buffers_full { nullptr }
{
}
size_t dropped_percent() const {
if( baseband_bytes_dropped == 0 ) {
return 0;
} else {
const size_t percent = baseband_bytes_dropped * 100U / baseband_bytes_received;
return std::max(1U, percent);
}
}
};
class CaptureConfigMessage : public Message {
public:
constexpr CaptureConfigMessage(
CaptureConfig* const config
) : Message { ID::CaptureConfig },
config { config }
{
}
CaptureConfig* const config;
};
struct ReplayConfig {
const size_t read_size;
const size_t buffer_count;
uint64_t baseband_bytes_received;
FIFO<StreamBuffer*>* fifo_buffers_empty;
FIFO<StreamBuffer*>* fifo_buffers_full;
constexpr ReplayConfig(
const size_t read_size,
const size_t buffer_count
) : read_size { read_size },
buffer_count { buffer_count },
baseband_bytes_received { 0 },
fifo_buffers_empty { nullptr },
fifo_buffers_full { nullptr }
{
}
};
class ReplayConfigMessage : public Message {
public:
constexpr ReplayConfigMessage(
ReplayConfig* const config
) : Message { ID::ReplayConfig },
config { config }
{
}
ReplayConfig* const config;
};
class TXProgressMessage : public Message {
public:
constexpr TXProgressMessage(
) : Message { ID::TXProgress }
{
}
uint32_t progress = 0;
bool done = false;
};
class AFSKRxConfigureMessage : public Message {
public:
constexpr AFSKRxConfigureMessage(
const uint32_t baudrate,
const uint32_t word_length,
const uint32_t trigger_value,
const bool trigger_word
) : Message { ID::AFSKRxConfigure },
baudrate(baudrate),
word_length(word_length),
trigger_value(trigger_value),
trigger_word(trigger_word)
{
}
const uint32_t baudrate;
const uint32_t word_length;
const uint32_t trigger_value;
const bool trigger_word;
};
class BTLERxConfigureMessage : public Message {
public:
constexpr BTLERxConfigureMessage(
const uint32_t baudrate,
const uint32_t word_length,
const uint32_t trigger_value,
const bool trigger_word
) : Message { ID::BTLERxConfigure },
baudrate(baudrate),
word_length(word_length),
trigger_value(trigger_value),
trigger_word(trigger_word)
{
}
const uint32_t baudrate;
const uint32_t word_length;
const uint32_t trigger_value;
const bool trigger_word;
};
class NRFRxConfigureMessage : public Message {
public:
constexpr NRFRxConfigureMessage(
const uint32_t baudrate,
const uint32_t word_length,
const uint32_t trigger_value,
const bool trigger_word
) : Message { ID::NRFRxConfigure },
baudrate(baudrate),
word_length(word_length),
trigger_value(trigger_value),
trigger_word(trigger_word)
{
}
const uint32_t baudrate;
const uint32_t word_length;
const uint32_t trigger_value;
const bool trigger_word;
};
class PitchRSSIConfigureMessage : public Message {
public:
constexpr PitchRSSIConfigureMessage(
const bool enabled,
const int32_t rssi
) : Message { ID::PitchRSSIConfigure },
enabled(enabled),
rssi(rssi)
{
}
const bool enabled;
const int32_t rssi;
};
class TonesConfigureMessage : public Message {
public:
constexpr TonesConfigureMessage(
const uint32_t fm_delta,
const uint32_t pre_silence,
const uint16_t tone_count,
const bool dual_tone,
const bool audio_out
) : Message { ID::TonesConfigure },
fm_delta(fm_delta),
pre_silence(pre_silence),
tone_count(tone_count),
dual_tone(dual_tone),
audio_out(audio_out)
{
}
const uint32_t fm_delta;
const uint32_t pre_silence;
const uint16_t tone_count;
const bool dual_tone;
const bool audio_out;
};
class RDSConfigureMessage : public Message {
public:
constexpr RDSConfigureMessage(
const uint16_t length
) : Message { ID::RDSConfigure },
length(length)
{
}
const uint16_t length = 0;
};
class RetuneMessage : public Message {
public:
constexpr RetuneMessage(
) : Message { ID::Retune }
{
}
int64_t freq = 0;
uint32_t range = 0;
};
class SamplerateConfigMessage : public Message {
public:
constexpr SamplerateConfigMessage(
const uint32_t sample_rate
) : Message { ID::SamplerateConfig },
sample_rate(sample_rate)
{
}
const uint32_t sample_rate = 0;
};
class AudioLevelReportMessage : public Message {
public:
constexpr AudioLevelReportMessage(
) : Message { ID::AudioLevelReport }
{
}
uint32_t value = 0;
};
class AudioTXConfigMessage : public Message {
public:
constexpr AudioTXConfigMessage(
const uint32_t divider,
const float deviation_hz,
const float audio_gain,
const uint32_t tone_key_delta,
const float tone_key_mix_weight
) : Message { ID::AudioTXConfig },
divider(divider),
deviation_hz(deviation_hz),
audio_gain(audio_gain),
tone_key_delta(tone_key_delta),
tone_key_mix_weight(tone_key_mix_weight)
{
}
const uint32_t divider;
const float deviation_hz;
const float audio_gain;
const uint32_t tone_key_delta;
const float tone_key_mix_weight;
};
class SigGenConfigMessage : public Message {
public:
constexpr SigGenConfigMessage(
const uint32_t bw,
const uint32_t shape,
const uint32_t duration
) : Message { ID::SigGenConfig },
bw(bw),
shape(shape),
duration(duration)
{
}
const uint32_t bw;
const uint32_t shape;
const uint32_t duration;
};
class SigGenToneMessage : public Message {
public:
constexpr SigGenToneMessage(
const uint32_t tone_delta
) : Message { ID::SigGenTone },
tone_delta(tone_delta)
{
}
const uint32_t tone_delta;
};
class AFSKTxConfigureMessage : public Message {
public:
constexpr AFSKTxConfigureMessage(
const uint32_t samples_per_bit,
const uint32_t phase_inc_mark,
const uint32_t phase_inc_space,
const uint8_t repeat,
const uint32_t fm_delta,
const uint8_t symbol_count
) : Message { ID::AFSKTxConfigure },
samples_per_bit(samples_per_bit),
phase_inc_mark(phase_inc_mark),
phase_inc_space(phase_inc_space),
repeat(repeat),
fm_delta(fm_delta),
symbol_count(symbol_count)
{
}
const uint32_t samples_per_bit;
const uint32_t phase_inc_mark;
const uint32_t phase_inc_space;
const uint8_t repeat;
const uint32_t fm_delta;
const uint8_t symbol_count;
};
class OOKConfigureMessage : public Message {
public:
constexpr OOKConfigureMessage(
const uint32_t stream_length,
const uint32_t samples_per_bit,
const uint8_t repeat,
const uint32_t pause_symbols
) : Message { ID::OOKConfigure },
stream_length(stream_length),
samples_per_bit(samples_per_bit),
repeat(repeat),
pause_symbols(pause_symbols)
{
}
const uint32_t stream_length;
const uint32_t samples_per_bit;
const uint8_t repeat;
const uint32_t pause_symbols;
};
class SSTVConfigureMessage : public Message {
public:
constexpr SSTVConfigureMessage(
const uint8_t vis_code,
const uint32_t pixel_duration
) : Message { ID::SSTVConfigure },
vis_code(vis_code),
pixel_duration(pixel_duration)
{
}
const uint8_t vis_code;
const uint32_t pixel_duration;
};
class FSKConfigureMessage : public Message {
public:
constexpr FSKConfigureMessage(
const uint32_t stream_length,
const uint32_t samples_per_bit,
const uint32_t shift,
const uint32_t progress_notice
) : Message { ID::FSKConfigure },
stream_length(stream_length),
samples_per_bit(samples_per_bit),
shift(shift),
progress_notice(progress_notice)
{
}
const uint32_t stream_length;
const uint32_t samples_per_bit;
const uint32_t shift;
const uint32_t progress_notice;
};
class POCSAGConfigureMessage : public Message {
public:
constexpr POCSAGConfigureMessage(
const pocsag::BitRate bitrate,
const bool phase
) : Message { ID::POCSAGConfigure },
bitrate(bitrate),
phase(phase)
{
}
const pocsag::BitRate bitrate;
const bool phase;
};
class ADSBConfigureMessage : public Message {
public:
constexpr ADSBConfigureMessage(
const uint32_t test
) : Message { ID::ADSBConfigure },
test(test)
{
}
const uint32_t test;
};
class JammerConfigureMessage : public Message {
public:
constexpr JammerConfigureMessage(
const bool run,
const jammer::JammerType type,
const uint32_t speed
) : Message { ID::JammerConfigure },
run(run),
type(type),
speed(speed)
{
}
const bool run;
const jammer::JammerType type;
const uint32_t speed;
};
class DTMFTXConfigMessage : public Message {
public:
constexpr DTMFTXConfigMessage(
const uint32_t bw,
const uint32_t tone_length,
const uint32_t pause_length
) : Message { ID::DTMFTXConfig },
bw(bw),
tone_length(tone_length),
pause_length(pause_length)
{
}
const uint32_t bw;
const uint32_t tone_length;
const uint32_t pause_length;
};
// TODO: use streaming buffer instead
// TODO: rename (not only used for requests)
class RequestSignalMessage : public Message {
public:
enum class Signal : char {
FillRequest = 1,
BeepRequest = 2,
Squelched = 3
};
constexpr RequestSignalMessage(
Signal signal
) : Message { ID::RequestSignal },
signal ( signal )
{
}
Signal signal;
};
class FIFODataMessage : public Message {
public:
constexpr FIFODataMessage(
const int8_t * data
) : Message { ID::FIFOData },
data ( data )
{
}
const int8_t * data;
};
class CaptureThreadDoneMessage : public Message {
public:
constexpr CaptureThreadDoneMessage(
uint32_t error = 0
) : Message { ID::CaptureThreadDone },
error { error }
{
}
uint32_t error;
};
class ReplayThreadDoneMessage : public Message {
public:
constexpr ReplayThreadDoneMessage(
uint32_t return_code = 0
) : Message { ID::ReplayThreadDone },
return_code { return_code }
{
}
uint32_t return_code;
};
#endif/*__MESSAGE_H__*/