/**
* @brief Read 1 or more bytes from the I2C slave at the specified memory address
* @param device_address The address of the device to read from
* @param start_address The memory address to read from
* @param data The allocated array to read into
* @param data_bytes The number of bytes to read
*/
void SoftwareI2C::randomRead(char device_address, char start_address, char* data, char data_bytes) {
if (data == 0 || data_bytes == 0) return;
device_address = device_address & 0xFE;
start();
putByte(device_address);
if (!getAck()) {
return;
}
putByte(start_address);
if (!getAck()) {
return;
}
device_address=device_address | 0x01;
start();
putByte(device_address);
if (!getAck()) {
return;
}
for ( int x = 0; x < data_bytes; ++x) {
data[x] = getByte();
if (x != (data_bytes - 1)) giveAck();
}
stop();
}
/**
* @brief Write 1 byte to the I2C slave
* @param device_address The address of the device to write to
* @param byte The data to write
*/
void SoftwareI2C::write(uint8_t device_address, uint8_t byte) {
device_address = device_address & 0xFE;
start();
putByte(device_address);
getAck();
putByte(byte);
getAck();
stop();
}
/**
* @brief Write 1 byte to the I2C slave
* @param device_address The address of the device to write to
* @param byte The data to write
*/
void SoftwareI2C::write(char device_address, char byte) {
device_address = device_address & 0xFE;
start();
putByte(device_address);
getAck();
putByte(byte);
getAck();
stop();
}
/**
* @brief Write 1 or more bytes to the I2C slave
* @param device_address The address of the device to write to
* @param data An array to write the data from
* @param data_bytes Number of bytes to write from array
*/
void SoftwareI2C::write(char device_address, char* data, char data_bytes) {
if (data == 0 || data_bytes == 0) return;
device_address = device_address & 0xFE;
start();
putByte(device_address);
getAck();
for ( int x = 0; x < data_bytes; ++x ) {
putByte(data[x]);
getAck();
}
stop();
}
/**
* @brief Write 1 or more bytes to the I2C slave at the specified memory address
* @param device_address The address of the device to write to
* @param start_address The memory address to write to
* @param data The data to write
* @param data_bytes The number of bytes to write
*/
void SoftwareI2C::randomWrite(uint8_t device_address, uint8_t start_address, uint8_t* data, uint8_t data_bytes) {
if (data == 0 || data_bytes == 0) return;
device_address = device_address & 0xFE;
start();
putByte(device_address);
getAck();
putByte(start_address);
getAck();
for ( int x = 0; x <= data_bytes; ++x ) {
putByte(data[x]);
getAck();
}
stop();
}
bufferStruct receiveSendData(bufferStruct buffer){
bufferStruct result;
if(getAck(buffer.bufferLength, buffer.buffer) & NEED_ACK > 0){
#if STATE_UART_DEBUG >= 2
uart_putstr ("seAck\r\n");
#endif
state = STATE_SENDING_ACK;
backupData.bufferLength = buffer.bufferLength;
memcpy(backupData.buffer, buffer.buffer, buffer.bufferLength);
sendAck(buffer);
} else {
result.bufferLength = getPayloadLength(buffer.bufferLength, buffer.buffer);
memcpy(result.buffer, getPayload(buffer.bufferLength, buffer.buffer), result.bufferLength);
#if STATE_UART_DEBUG >= 3
uart_putc('%');
uart_putc(result.bufferLength);
uart_putc('%');
for(uint8_t i = 0; i < result.bufferLength; ++i){
uart_putc(result.buffer[i]);
}
uart_putc('%');
#endif
}
return result;
}
int clientSlidingWindow( UdpSocket &sock, const int max, int message[], int windowSize ) {
cerr << "Sliding-window test:" << endl;
int lar = -1; // last acknowledgment received
int seq = 0; // current seq #
int retransmits = 0;
if(sock.pollRecvFrom() > 0) { // check for any old acks
sock.recvFrom( ( char * ) message, MSGSIZE ); // clean out the socket
}
vector<int> window(windowSize);
for(int i = 0; i < windowSize; i++) { //init window
window[i] = -1;
}
Timer t;
while( seq < max) {
while(seq - lar <= windowSize && seq < max) { // while seq is within window
message[0] = seq; // append seq to message
sock.sendTo((char*) message, MSGSIZE); // send message
seq++; // increment seq
}
long lap;
t.start(); // timer start
while ((lap = t.lap()) < 1500) {
if(sock.pollRecvFrom() > 0) { // while not timed out
getAck(lar, sock); // check for an ack
break;
}
}
if (lap >=1500) { // if no ack
seq = lar+1; // reset sequence #
retransmits++;
}
}
return retransmits;
}
/**
* Send a message.
* Waits for the firmware to acknowlge and resends the packet
* a few timew if not acknowledged.
* @param m The message to send
* @throw Transport::Exception if never acknowledged.
*/
void Transport::send(Message *m)
{
CHECK_THROW_CONFIGURED();
char skip_send = 0;
Message* ack = NULL;
int transmit_times = 0;
short result_code;
poll();
while(1) {
// We have exceeded our retry numbers
if (transmit_times > this->retries) {
break;
}
// Write output
if (!skip_send) WriteData(serial, (char*)(m->data), m->total_len);
// Wait up to 100 ms for ack
for(int i = 0; i<RETRY_DELAY_MS; ++i) {
usleep(1000);
if( (ack=getAck()) ) break;
}
// No message - resend
if (ack == NULL) {
skip_send = 0;
//cout << "No message received yet" << endl;
transmit_times++;
continue;
}
// Check result code
// If the result code is bad, the message was still transmitted
// successfully
result_code = btou(ack->getPayloadPointer(), 2);
if (result_code > 0) {
throw new BadAckException(result_code);
} else {
// Everything's good - return
break;
}
// Other failure
transmit_times++;
}
if( ack == NULL ) {
throw new TransportException("Unacknowledged send", TransportException::UNACKNOWLEDGED_SEND);
}
delete ack;
m->is_sent = true;
}
/**
* @brief Read 1 or more bytes from the I2C slave
* @param device_address The address of the device to read from
* @param data An allocated array to read the data into
* @param data_bytes Number of bytes to read (must be equal to or less then the allocated memory in data)
*/
void SoftwareI2C::read(char device_address, char* data, char data_bytes) {
if (data == 0 || data_bytes == 0) return;
device_address = device_address | 0x01;
start();
putByte(device_address);
getAck();
for (int x = 0; x < data_bytes; ++x) {
data[x] = getByte();
if ( x < (data_bytes -1)) { //ack all but the final byte
giveAck();
}
}
stop();
}
// Put a byte across the wire
// Return true if the slave acknowledges
static boolean putByte(const I2C_ABSTRACT_BUS* bus, uint8_t b){
const I2C_SOFTWARE_BUS* i2c = (const I2C_SOFTWARE_BUS*)bus;
int8_t i;
for(i=7; i>=0; i--){
if( b & 0x80 ){
sda_high(i2c);
}else{
sda_low(i2c);
}
scl_high(i2c);
b <<= 1;
scl_low(i2c);
}
return getAck(i2c); // return ACK value
}
void MUXSender(BCSPStack * stack)
{
Packet * pkt = null ;
while(1)
{
//wait for the slip-sender to be available - (the slip-sender only has one packet
//slot rather than a queue to prevent problems with window-rollbacks.
if (stack->SLIPInputPacket) SYNCBLKwaitSignal(stack,&stack->SLIPSendAvailableSignal) ;
//we prefer to send an unreliable packet if one is available
pkt=ASYNCBLKgetPacketFromBuffer(stack,&stack->MUXUnreliableInput) ;
//otherwise, we'll take a reliable one if one is available
if (!pkt) pkt = ASYNCBLKremoveFirstUnsentPacketFromWindow(stack,&stack->theXMITWindow) ;
//the last resort is to send a dedicated ack packet but we only need
//to do this if an ack is definitely required
if (!pkt)
{
if (!stack->ackRequired) SYNCBLKwaitSignal(stack,&stack->txackSignal) ;
//blocking on the signal has the side-effect of also blocking on the
//previous conditions so we'll be woken up by anything
stack->ackRequired = false ;
pkt = &stack->theAckPacket ; //use the dedicated ack packet
}
//ok - at this point we have a packet and we're intent on sending it
setAck(pkt, stack->txack) ; //set the correct acknowledgement number
//add the checksum to the header after setting crc
if (stack->configuration->useCRC) setPacketHasCRC(pkt) ;
setPacketChecksum(pkt) ;
//pass it on to SLIP layer
// JBS: no GetTickCount on POSIX
// BTRACE5(MUX,"MUX sending pkt %p seq %d ack %d len %d time %d\n",pkt,getSeq(pkt),getAck(pkt),getLength(pkt), GetTickCount() ) ;
BTRACE4(MUX,"MUX sending pkt %p seq %d ack %d len %d\n",pkt,getSeq(pkt),getAck(pkt),getLength(pkt)) ;
stack->SLIPInputPacket = pkt ;
setSignal(stack,&stack->MUXHasPacketForSLIPSignal) ;
}
}
bufferStruct checkReceiveData(bufferStruct buffer){
rfm12_tick(); //periodic tick function - call that one once in a while
switch(state){
case STATE_TIMEOUT:
#if STATE_UART_DEBUG >= 2
uart_putstr ("tiOu\r\n");
#endif
++timoutCounter;
if(timoutCounter > 5){
#if STATE_UART_DEBUG >= 2
uart_putstr ("tiOuOverl\r\n");
#endif
state = STATE_FREE;
stopTimer();
timoutCounter = 0;
} else {
processNack();
}
break;
case STATE_SENDING_ACK:
if(rfm12_tx_status() == STATUS_FREE){
state = STATE_SENDING_DATA;
#if STATE_UART_DEBUG >= 2
uart_putstr ("finSeAck\r\n");
#endif
bufferStruct result;
result.bufferLength = getPayloadLength(backupData.bufferLength, backupData.buffer);
memcpy(result.buffer, getPayload(backupData.bufferLength, backupData.buffer), result.bufferLength);
uart_putc('%');
uart_putc(result.bufferLength);
uart_putc('%');
for(uint8_t i = 0; i < result.bufferLength; ++i){
uart_putc(result.buffer[i]);
}
uart_putc('%');
return result;
}
case STATE_SENDING_DATA:
if(rfm12_tx_status() == STATUS_FREE){
#if STATE_UART_DEBUG >= 2
uart_putstr ("finSeData\r\n");
#endif
state = STATE_FREE;
}
}
//uart_putstr (rfm12_rx_status());
if (rfm12_rx_status() == STATUS_COMPLETE){
bufferStruct tempBuffer;
tempBuffer.bufferLength = rfm12_rx_len();
memcpy(tempBuffer.buffer, rfm12_rx_buffer(), tempBuffer.bufferLength);
if(validateCrc(tempBuffer)){
#if STATE_UART_DEBUG >= 2
uart_putstr ("crcAck\r\n");
#endif
} else {
#if STATE_UART_DEBUG >= 2
uart_putstr ("crcNack\r\n");
#endif
rfm12_rx_clear();
sendNack(tempBuffer);
return buffer;
}
if(state > STATE_FREE){
if(getAck(tempBuffer.bufferLength, tempBuffer.buffer) & ACK){
#if STATE_UART_DEBUG >= 2
uart_putstr ("rxAck\r\n");
#endif
processAck();
} else if(getType(tempBuffer.bufferLength, tempBuffer.buffer) & NACK){
#if STATE_UART_DEBUG >= 2
uart_putstr ("rxNack\r\n");
#endif
processNack();
}
}
if(state == STATE_FREE){
switch(getType(tempBuffer.bufferLength, tempBuffer.buffer)){
case SEND_DATA:
#if STATE_UART_DEBUG >= 2
uart_putstr ("send\r\n");
#endif
buffer = receiveSendData(tempBuffer);
break;
// here we should implement the cases of repeating data therefore we would have to know all last data sent
// here we should implement the get back to in -> timeframe not yet implemented
}
}
// tell the implementation that the buffer
// can be reused for the next data.
rfm12_rx_clear();
}
return buffer;
}
void CAnalogueRepeaterApp::createThread()
{
CAnalogueRepeaterThread* thread = new CAnalogueRepeaterThread;
wxString openId, closeId, beacon1, beacon2;
unsigned int speed, freq;
wxFloat32 level1, level2;
AUDIO_SOURCE openIdSource, closeIdSource, beacon1Source, beacon2Source;
getCallsign(openIdSource, openId, closeIdSource, closeId, beacon1Source, beacon1, beacon2Source, beacon2, speed, freq, level1, level2);
wxLogInfo(wxT("Open ID source: %d, value: \"%s\", close ID source: %d, value: \"%s\", beacon 1 source: %d, value: \"%s\", beacon 2 source: %d, value: \"%s\", speed: %u WPM, freq: %u Hz, level1: %.3f, level2: %.3f"), int(openIdSource), openId.c_str(), int(closeIdSource), closeId.c_str(), int(beacon1Source), beacon1.c_str(), int(beacon2Source), beacon2.c_str(), speed, freq, level1, level2);
IFixedAudioSource* openIdAudio = NULL;
IFixedAudioSource* closeIdAudio = NULL;
IFixedAudioSource* beacon1Audio = NULL;
IFixedAudioSource* beacon2Audio = NULL;
switch (openIdSource) {
case AS_CW_KEYER:
openIdAudio = new CCWKeyer(openId, speed, freq, ANALOGUE_RADIO_SAMPLE_RATE);
break;
case AS_WAV_FILE: {
CWAVFileStore* audio = new CWAVFileStore;
bool res = audio->load(openId, ANALOGUE_RADIO_SAMPLE_RATE);
if (!res)
delete audio;
else
openIdAudio = audio;
}
break;
}
switch (closeIdSource) {
case AS_CW_KEYER:
closeIdAudio = new CCWKeyer(closeId, speed, freq, ANALOGUE_RADIO_SAMPLE_RATE);
break;
case AS_WAV_FILE: {
CWAVFileStore* audio = new CWAVFileStore;
bool res = audio->load(closeId, ANALOGUE_RADIO_SAMPLE_RATE);
if (!res)
delete audio;
else
closeIdAudio = audio;
}
break;
}
switch (beacon1Source) {
case AS_CW_KEYER:
beacon1Audio = new CCWKeyer(beacon1, speed, freq, ANALOGUE_RADIO_SAMPLE_RATE);
break;
case AS_WAV_FILE: {
CWAVFileStore* audio = new CWAVFileStore;
bool res = audio->load(beacon1, ANALOGUE_RADIO_SAMPLE_RATE);
if (!res)
delete audio;
else
beacon1Audio = audio;
}
break;
}
switch (beacon2Source) {
case AS_CW_KEYER:
beacon2Audio = new CCWKeyer(beacon2, speed, freq, ANALOGUE_RADIO_SAMPLE_RATE);
break;
case AS_WAV_FILE: {
CWAVFileStore* audio = new CWAVFileStore;
bool res = audio->load(beacon2, ANALOGUE_RADIO_SAMPLE_RATE);
if (!res)
delete audio;
else
beacon2Audio = audio;
}
break;
}
thread->setCallsign(openIdAudio, closeIdAudio, beacon1Audio, beacon2Audio, level1, level2);
wxString radioAck, extAck, batteryAck;
unsigned int ack, minimum;
wxFloat32 level;
AUDIO_SOURCE radioAckSource, extAckSource, batteryAckSource;
getAck(radioAckSource, radioAck, extAckSource, extAck, batteryAckSource, batteryAck, speed, freq, level, ack, minimum);
wxLogInfo(wxT("Radio ack source: %d, radio ack: \"%s\", network ack source: %d, network ack: \"%s\", battery ack source: %d, battery ack: \"%s\", speed: %u WPM, freq: %u Hz, level: %.3f, ack: %u ms, minimum: %u ms"), int(radioAckSource), radioAck.c_str(), int(extAckSource), extAck.c_str(), int(batteryAckSource), batteryAck.c_str(), speed, freq, level, ack, minimum);
IFixedAudioSource* radioAckAudio = NULL;
IFixedAudioSource* extAckAudio = NULL;
IFixedAudioSource* batteryAckAudio = NULL;
switch (radioAckSource) {
case AS_CW_KEYER:
radioAckAudio = new CCWKeyer(radioAck, speed, freq, ANALOGUE_RADIO_SAMPLE_RATE);
break;
case AS_WAV_FILE: {
CWAVFileStore* audio = new CWAVFileStore;
bool res = audio->load(radioAck, ANALOGUE_RADIO_SAMPLE_RATE);
if (!res)
delete audio;
else
radioAckAudio = audio;
}
break;
}
switch (extAckSource) {
case AS_CW_KEYER:
extAckAudio = new CCWKeyer(extAck, speed, freq, ANALOGUE_RADIO_SAMPLE_RATE);
break;
case AS_WAV_FILE: {
CWAVFileStore* audio = new CWAVFileStore;
bool res = audio->load(extAck, ANALOGUE_RADIO_SAMPLE_RATE);
if (!res)
delete audio;
else
extAckAudio = audio;
}
break;
}
switch (batteryAckSource) {
case AS_CW_KEYER:
batteryAckAudio = new CCWKeyer(batteryAck, speed, freq, ANALOGUE_RADIO_SAMPLE_RATE);
break;
case AS_WAV_FILE: {
CWAVFileStore* audio = new CWAVFileStore;
bool res = audio->load(extAck, ANALOGUE_RADIO_SAMPLE_RATE);
if (!res)
delete audio;
else
batteryAckAudio = audio;
}
break;
}
thread->setAck(radioAckAudio, extAckAudio, batteryAckAudio, level, ack, minimum);
unsigned int callsignTime, timeout, lockoutTime, hangTime, latchTime;
getTimes(callsignTime, timeout, lockoutTime, hangTime, latchTime);
thread->setTimes(callsignTime, timeout, lockoutTime, hangTime, latchTime);
wxLogInfo(wxT("Times set to: callsign time: %u secs, timeout: %u secs, lockout time: %u secs, hang time: %u secs, latch time: %u secs"), callsignTime, timeout, lockoutTime, hangTime, latchTime);
bool tbEnable, ctcssInternal;
wxFloat32 tbThreshold, ctcssFreq, ctcssThresh, ctcssLevel;
unsigned int ctcssHangTime;
ANALOGUE_CTCSS_OUTPUT ctcssOutput;
getTones(tbEnable, tbThreshold, ctcssFreq, ctcssInternal, ctcssThresh, ctcssLevel, ctcssHangTime, ctcssOutput);
thread->setTones(tbEnable, tbThreshold, ctcssFreq, ctcssInternal, ctcssThresh, ctcssLevel, ctcssHangTime, ctcssOutput);
wxLogInfo(wxT("Tones set to: toneburst enable: %u, threshold: %.3f, CTCSS freq: %.1f Hz, internal: %u, threshold: %.3f, level: %.3f, hang time: %u ms, output: %d"), tbEnable, tbThreshold, ctcssFreq, ctcssInternal, ctcssThresh, ctcssLevel, ctcssHangTime * 20U, ctcssOutput);
ANALOGUE_CALLSIGN_START callsignAtStart;
unsigned int callsignStartDelay;
bool callsignAtEnd;
ANALOGUE_TIMEOUT_TYPE timeoutType;
ANALOGUE_CALLSIGN_HOLDOFF callsignHoldoff;
getFeel(callsignAtStart, callsignStartDelay, callsignAtEnd, timeoutType, callsignHoldoff);
thread->setFeel(callsignAtStart, callsignStartDelay, callsignAtEnd, timeoutType, callsignHoldoff);
wxLogInfo(wxT("Feel set to: callsignAtStart: %d, callsignStartDelay: %u s, callsignAtEnd: %u, timeoutType: %d, callsignHoldoff: %d"), callsignAtStart, callsignStartDelay, callsignAtEnd, timeoutType, callsignHoldoff);
wxString readDevice, writeDevice;
unsigned int audioDelay;
bool deEmphasis, preEmphasis, vogad;
getRadio(readDevice, writeDevice, audioDelay, deEmphasis, preEmphasis, vogad);
wxLogInfo(wxT("Radio soundcard set to %s:%s, delay: %u ms, de-emphasis: %d, pre-emphasis %d, vogad: %d"), readDevice.c_str(), writeDevice.c_str(), audioDelay * 20U, int(deEmphasis), int(preEmphasis), int(vogad));
if (!readDevice.IsEmpty() && !writeDevice.IsEmpty()) {
CSoundCardReaderWriter* soundcard = new CSoundCardReaderWriter(readDevice, writeDevice, ANALOGUE_RADIO_SAMPLE_RATE, ANALOGUE_RADIO_BLOCK_SIZE);
soundcard->setCallback(thread, SOUNDCARD_RADIO);
bool res = soundcard->open();
if (!res)
wxLogError(wxT("Cannot open the radio sound card"));
else
thread->setRadio(soundcard, audioDelay, deEmphasis, preEmphasis, vogad);
}
wxString type;
unsigned int pttDelay, squelchDelay, cfg;
bool pttInvert, squelchInvert;
getController(type, cfg, pttDelay, squelchDelay, pttInvert, squelchInvert);
wxLogInfo(wxT("Controller set to %s, config: %u, ptt delay: %u ms, squelch delay: %u ms, ptt invert: %d, squelch invert: %d"), type.c_str(), cfg, pttDelay * 20U, squelchInvert * 20U, pttInvert, squelchInvert);
CExternalController* controller = NULL;
wxString port;
if (type.StartsWith(wxT("Velleman K8055 - "), &port)) {
unsigned long num;
port.ToULong(&num);
controller = new CExternalController(new CK8055Controller(num), pttInvert, squelchInvert);
} else if (type.StartsWith(wxT("Serial - "), &port)) {
controller = new CExternalController(new CSerialLineController(port, cfg), pttInvert, squelchInvert);
} else if (type.StartsWith(wxT("Arduino - "), &port)) {
controller = new CExternalController(new CArduinoController(port), pttInvert, squelchInvert);
#if defined(GPIO)
} else if (type.IsSameAs(wxT("GPIO"))) {
controller = new CExternalController(new CGPIOController(cfg), pttInvert, squelchInvert);
#endif
} else {
controller = new CExternalController(new CDummyController, pttInvert, squelchInvert);
}
bool res = controller->open();
if (!res)
wxLogError(wxT("Cannot open the hardware interface - %s"), type.c_str());
else
thread->setController(controller, pttDelay, squelchDelay);
ANALOGUE_EXTERNAL_MODE mode;
wxString device;
SERIALPIN txPin, rxPin;
bool background;
getExternal(mode, readDevice, writeDevice, audioDelay, deEmphasis, preEmphasis, vogad, device, txPin, rxPin, background);
wxLogInfo(wxT("External mode: %d, soundcard set to %s:%s, delay: %u ms, de-emphasis: %d, pre-emphasis %d, vogad: %u, interface set to %s, tx %d, rx %d, background: %d"), mode, readDevice.c_str(), writeDevice.c_str(), audioDelay * 20U, int(deEmphasis), int(preEmphasis), int(vogad), device.c_str(), txPin, rxPin, int(background));
if (mode != AEM_DISABLED) {
CSoundCardReaderWriter* soundcard = new CSoundCardReaderWriter(readDevice, writeDevice, ANALOGUE_RADIO_SAMPLE_RATE, ANALOGUE_RADIO_BLOCK_SIZE);
soundcard->setCallback(thread, SOUNDCARD_EXTERNAL);
bool res = soundcard->open();
if (!res) {
wxLogError(wxT("Cannot open the external sound card"));
} else {
// This works even for an empty device name
CNetworkController* controller = new CNetworkController(device, txPin, rxPin);
res = controller->open();
if (!res)
wxLogError(wxT("Cannot open serial port - %s"), device.c_str());
else
thread->setExternal(mode, soundcard, audioDelay, deEmphasis, preEmphasis, vogad, controller, background);
}
}
bool out1, out2, out3, out4;
getOutputs(out1, out2, out3, out4);
thread->setOutputs(out1, out2, out3, out4);
m_frame->setOutputs(out1, out2, out3, out4);
wxLogInfo(wxT("Output 1: %d, output 2: %d, output 3: %d, output 4: %d"), out1, out2, out3, out4);
bool dtmfRadio, dtmfExternal;
wxString dtmfShutdown, dtmfStartup, dtmfTimeout, dtmfTimeReset, dtmfOutput1, dtmfOutput2, dtmfOutput3, dtmfOutput4;
wxString dtmfCommand1, dtmfCommand1Line, dtmfCommand2, dtmfCommand2Line;
wxFloat32 dtmfThreshold;
getDTMF(dtmfRadio, dtmfExternal, dtmfShutdown, dtmfStartup, dtmfTimeout, dtmfTimeReset, dtmfCommand1, dtmfCommand1Line, dtmfCommand2, dtmfCommand2Line, dtmfOutput1, dtmfOutput2, dtmfOutput3, dtmfOutput4, dtmfThreshold);
thread->setDTMF(dtmfRadio, dtmfExternal, dtmfShutdown, dtmfStartup, dtmfTimeout, dtmfTimeReset, dtmfCommand1, dtmfCommand1Line, dtmfCommand2, dtmfCommand2Line, dtmfOutput1, dtmfOutput2, dtmfOutput3, dtmfOutput4, dtmfThreshold);
wxLogInfo(wxT("DTMF: Radio: %d, External: %d, Shutdown: %s, Startup: %s, Timeout: %s, Time Reset: %s, Command1: %s = %s, Command2: %s = %s, Output1: %s, Output2: %s, Output3: %s, Output4: %s, Threshold: %f"), dtmfRadio, dtmfExternal, dtmfShutdown.c_str(), dtmfStartup.c_str(), dtmfTimeout.c_str(), dtmfTimeReset.c_str(), dtmfCommand1.c_str(), dtmfCommand1Line.c_str(), dtmfCommand2.c_str(), dtmfCommand2Line.c_str(), dtmfOutput1.c_str(), dtmfOutput2.c_str(), dtmfOutput3.c_str(), dtmfOutput4.c_str(), dtmfThreshold);
unsigned int activeHangTime;
getActiveHang(activeHangTime);
thread->setActiveHang(activeHangTime);
wxLogInfo(wxT("Active Hang: time: %u"), activeHangTime);
// Convert the worker class into a thread
m_thread = new CAnalogueRepeaterThreadHelper(thread);
m_thread->start();
}
int main(int argc, char *argv[])
{
double probLoss, probCorruption;
int sockfd, newsockfd, portno, pid, CWnd;
socklen_t clilen;
struct sockaddr_in serv_addr, cli_addr;
struct Header packetHeader;
struct sigaction sa;
time_t t;
srand((unsigned)time(&t));
if (argc < 5) {
fprintf(stderr, "ERROR, missing argument\n");
exit(1);
}
CWnd = atoi(argv[2]);
probLoss = atoi(argv[3]);
probCorruption = atoi(argv[4]);
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
if (sockfd < 0)
error("ERROR opening socket");
memset(&serv_addr, 0, sizeof(serv_addr));
portno = atoi(argv[1]);
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(portno);
if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0)
error("ERROR on binding");
int n, loss = 0, corruption = 0, base = 0, nextSeqnum = 0, seq = 0,
ack = 0, numUnacked = 0, i, j, k, len, cumAck, sizeCliAddr;
char buffer[1024];
char packetBuffer[packetBufferSize][maxPacketSize + 1];
int nxtPtr = 0, nxtFree = 0, count = 0;
char unacked[CWnd][maxPacketSize + 1];
struct Header recvAck, data;
char filename[1024];
FILE * fp;
char packet[maxPacketSize + 1];
int cur;
//col 1: 0 unacked, 1 acked or unused
//col 2: window seq num
//col 3: expected ack
int window[CWnd][3];
memset(packet, 0, sizeof(packet));
for (i = 0; i < CWnd; i++)
{
window[i][0] = 1;
window[i][1] = 0;
window[i][2] = 0;
}
memset((struct sigaction *) &sa, 0, sizeof(sa));
sa.sa_handler = setTimeout;
sa.sa_flags = SA_SIGINFO;
sigaction(SIGALRM, &sa, NULL);
//eventually, it seems here that the loop eventually stops sending
//packets to the receiver and the receiver is just left hanging...
while (1)
{
memset(buffer, 0, 1024);
// read if timeout has not occured
if (timeout != 1)
{
sizeCliAddr = sizeof(cli_addr);
n = recvfrom(sockfd, buffer, sizeof(buffer), 0,
(struct sockaddr *) &cli_addr, &sizeCliAddr);
}
else errno = EINTR;
if (errno == EINTR)
{
if (timeout == 1)
{
timeout = 0;
k = base + CWnd;
for (i = base; i < k; i++)
for (j = 0; j < CWnd; j++)
if (window[j][0] == 0 && window[j][1] == i)
{
n = sendto(sockfd, unacked[j], sizeof(unacked[j]), 0,
(struct sockaddr *) &cli_addr, sizeof(cli_addr));
if (n < 0)
error("ERROR reading from socket");
printf("\nPacket Sent: \n");
printPacket(unacked[j]);
break;
}
alarm(dur);
errno = 0;
continue;
}
else
error("ERROR reading from socket");
}
else if (n < 0)
error("ERROR reading from socket");
// if no loss or corruption
loss = isHit(probLoss);
corruption = isHit(probCorruption);
if (loss != 1 && corruption != 1)
{
// if client asks for file
if (getDataLen(buffer) > 0)
{
//eventually, this block of code never gets called but there are still text left to transmit...a mystery...
printPacket(buffer);
memset(filename, 0, 1024);
getFileName(buffer, filename);
printf("File Requested: %s\n", filename);
fp = fopen(filename, "r");
if (fp == NULL)
error("Failed to open file");
cur = fgetc(fp);
len = 0;
data.srcPort = ntohs(serv_addr.sin_port);
data.destPort = ntohs(cli_addr.sin_port);
data.ack = 0;
data.flag = 0;
i = headerLen;
while (1)
{
if (len < maxPacketSize - headerLen && cur != EOF)
{
packet[i] = (char)cur;
cur = fgetc(fp);
len++;
i++;
}
if (len == maxPacketSize - headerLen || cur == EOF)
{
data.seq = seq;
data.dataLen = (short)len;
data.checkSum = (short)1;
if (cur == EOF)
data.flag = 1;
memcpy(packet, (struct Header *) &data, headerLen);
if (nextSeqnum < base + CWnd)
{
for (i = 0; i < CWnd; i++)
if (window[i][0] == 1)
{
window[i][0] = 0;
window[i][1] = nextSeqnum;
window[i][2] = ack + len;
n = sendto(sockfd, packet, sizeof(packet), 0,
(struct sockaddr *) &cli_addr, sizeof(cli_addr));
if (n < 0)
error("ERROR writing to socket");
if (nextSeqnum == base)
alarm(dur);
printf("\nPacket sent:\n");
printPacket(packet);
memcpy(&unacked[i][0], &packet[0], sizeof(packet));
seq += len;
ack += len;
i = headerLen;
len = 0;
nextSeqnum++;
break;
}
}
else
{
memcpy(packetBuffer[nxtFree], packet,
maxPacketSize);
nxtFree++;
count++;
//adding this helped a bit but not entirely if the file is very large
seq += len;
ack += len;
len = 0;
i = headerLen;
}
memset(packet, 0, sizeof(packet));
if (cur == EOF)
{
data.flag = 0;
break;
}
}
}
fclose(fp);
fileRequest = 0;
}
// if client sends ACK
else
{
//this isn't run until all the packets have been sent in the first window
//that is, if the CWnd is 10, then nextSeqnum only goes up until 10 and then
//the packets go into packetBuffer
//the packets in packetBuffer, after all the first set of packets are sent, are now being sent
//but what happens after the packets in packetBuffer are all sent?
printf("\nPacket Received:\n");
printPacket(buffer);
cumAck = getAck(buffer);
j = 0;
for (i = 0; i < CWnd; i++)
{
if (window[i][1] >= base && cumAck >= window[i][2] &&
window[i][0] == 0)
{
j++;
window[i][0] = 1;
if (window[i][1] == base)
alarm(dur);
if (count > 0)
{
count--;
//printf("Sending in the other else branch.\n");
n = sendto(sockfd, packetBuffer[nxtPtr],
sizeof(packetBuffer[nxtPtr]), 0,
(struct sockaddr *) &cli_addr, sizeof(cli_addr));
if (n < 0)
error("ERROR writing to socket");
printPacket(packetBuffer[nxtPtr]);
nxtPtr = (nxtPtr + 1) % packetBufferSize;
nxtFree = (nxtFree + 1) % packetBufferSize;
// TODO: add stuff regarding window
}
}
}
base += j;
}
}
// if loss or corruption do nothing
else
{
if (loss == 1 && corruption == 0)
printf("Packet Lost:\n");
else if (corruption == 1 && loss == 0)
printf("Packet Corrupted:\n");
else printf("Packet Corrupted and Lost:\n");
loss = 0;
corruption = 0;
printPacket(buffer);
}
}
close(sockfd);
return 0;
}