//--------------------------------------------------------------
void Device::set(string id, int nbLEDs, float distLEDs)
{
if (nbLEDs<2)
nbLEDs = 2;
m_id = id;
m_nbLEDs = nbLEDs;
m_distLEDs = distLEDs;
m_length = m_distLEDs*(m_nbLEDs-1);
// printf("m_length=%.3f\n", m_length);
createPackets(m_nbLEDs);
}
/**
* fullThrottle() Create and send packets as fast as they can be generated.
*
* Description:\n
* Creates noise packets with optional signal(s) injected, then sends\n
* LCP and RCP signals.\n
*/
void
fullThrottle()
{
for (packet = 0; packet < nPackets; ++packet) {
*xPkt = *pkt;
*yPkt = *pkt;
createPackets(genX, genY, *xPkt, *yPkt);
sendPackets(*xPkt, *yPkt);
}
printStatistics();
fout.close();
exit(0);
}
//--------------------------------------------------------------
void Device::setNbLeds(int nb)
{
m_nbLEDs = nb;
createPackets(m_nbLEDs);
if (m_isSendMessagesOSC == false) return;
ofxOscMessage m;
m.setAddress( OSC_ADDRESS_SET_DEVICE_PROP );
m.addStringArg(m_id);
m.addStringArg("setNbLeds");
m.addIntArg( m_nbLEDs );
m_oscSender.sendMessage(m);
}
/**
* alarmHandler() Create and send packets at a given interval.
*
* Description:\n
* At each alarm, creates a pair of LCP/RCP gaussian noise packets\n
* and sends them to the network or a file.\n
*/
void
alarmHandler(int signal)
{
if (packet < nPackets) {
*xPkt = *pkt;
*yPkt = *pkt;
createPackets(genX, genY, *xPkt, *yPkt);
sendPackets(*xPkt, *yPkt);
packet++;
}
else {
printStatistics();
fout.close();
exit(0);
}
}
//--------------------------------------------------------------
void Device::set(string id, int nbLEDs, float distLEDs)
{
if (nbLEDs<2)
nbLEDs = 2;
m_id = id;
m_nbLEDs = nbLEDs;
m_distLEDs = distLEDs;
m_length = m_distLEDs*(m_nbLEDs-1);
// printf("m_length=%.3f\n", m_length);
createPackets(m_nbLEDs);
mp_sampleStandBy = new float[m_nbLEDs];
for (int i=0;i<m_nbLEDs;i++){
mp_sampleStandBy[i]=0.0f;
}
}
int main(int argc, char **argv)
{
struct sockaddr_in myaddr; /* our address */
int recvlen; /* # bytes received */
int fd, i; /* our socket */
int msgcnt = 0; /* count # of messages we received */
char buf[BUFSIZE]; /* receive buffer */
/* create a UDP socket */
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("cannot create socket\n");
return 0;
}
/* bind the socket to any valid IP address and a specific port */
memset((char *)&myaddr, 0, sizeof(myaddr));
myaddr.sin_family = AF_INET;
myaddr.sin_addr.s_addr = htonl(INADDR_ANY);
myaddr.sin_port = htons(SERVICE_PORT);
if (bind(fd, (struct sockaddr *)&myaddr, sizeof(myaddr)) < 0) {
perror("bind failed");
}
printf("waiting on port %d\n", SERVICE_PORT);
for (;;) {
timer++;
printf("timer %d\n", timer);
if (timer == timeoutInt ) {
if (base==nsn && nsn != NULL) {
printf("timeout occured but nothing to resend to client \n");
timerIsOn = 0;
}else{
printf("timeout occured resending unacknowledge packets \n");
toResendFunc(fd, remaddr, addrlen);
timer = 0; //TODO: Ask Gerard if this should reset
}
}
recvlen = recvfrom(fd, buf, BUFSIZE, 0, (struct sockaddr *)&remaddr, &addrlen);
tv.tv_sec = timerIsOn;
tv.tv_usec = 0;
if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO,&tv,sizeof(tv)) < 0) {
perror("Error");
}
if (recvlen >= 0) {
buf[recvlen] = 0; /* expect a printable string - terminate it */
printf("received message from client: \"%s\"\n", buf);
//listen for configurations from client
if (strstr(buf, "filename") != NULL) {
tokenizeConfig(buf, ",=:"); //get configuration and store
createPackets(filename,chunksizeInt);// fragmentation of the file requested by client
//initial start sending packets
base = head;
nsn = head;
sendPackets(fd, remaddr, addrlen);
} else if(strstr(buf, "ACK") != NULL){
timerIsOn = 1; //
timer = 0;//reset timer
/*TODO:continue to send packets to maximize window size
traverse base based on received acknowledged packet seq of client
note: ack seq num is actually the seq number expected by the client to receive
n = (ackseqnum - base->startseqnum)/chunksize
*/
ackNum = tokenizeAck(buf,"-");
if (ackNum < (fileSize+isnInt)) {
traverseBase((ackNum - base->startSeqNumber)/chunksizeInt);
if (base==nsn) {
timerIsOn = 0;
}else {
timerIsOn = 1;
}
sendPackets(fd, remaddr, addrlen);
}else{
printf("filetransfer complete \n");
printf("nullifying timeout timer, no packets left to send\n");
timerIsOn = 0;
sprintf(buf, "complete");
if (sendto(fd, buf, strlen(buf), 0, (struct sockaddr *)&remaddr, addrlen) < 0)
perror("sendto");
// close(fd);
}
}
}
}
// display();
/* never exits */
}
//--------------------------------------------------------------
void Device::setNbLedsOSC(int nb)
{
m_nbLEDs = nb;
createPackets(m_nbLEDs);
}
int
main(int argc, char **argv)
{
parseArgs(argc, argv);
if (beam)
channel = 0;
sndX = new MCSend(channel, mcPortX+channel, mcAddr);
sndY = new MCSend(channel, mcPortY+channel, mcAddr);
/**
* initialize the sample generators
*/
genX.setup(seedX, bandwidth, power);
genY.setup(seedY, bandwidth, power);
/**
* if we're writing to output, open the file
*/
if (packetFile.length())
openFile(packetFile);
if (beam) {
pkt = new BeamPacket(source, channel);
xPkt = new BeamPacket(source, channel);
yPkt = new BeamPacket(source, channel);
ATADataPacketHeader hdr = pkt->getHeader();
complex<float> val(1, 1);
for (uint32_t i = 0; i < hdr.len; ++i) {
pkt->putSample(i, val);
xPkt->putSample(i, val);
yPkt->putSample(i, val);
}
/**
* send packets with no valid bit to reset Channelizer
*/
createPackets(genX, genY, *xPkt, *yPkt);
sendPackets(*xPkt, *yPkt);
}
else {
pkt = new ChannelPacket(source, channel);
xPkt = new ChannelPacket(source, channel);
yPkt = new ChannelPacket(source, channel);
ATADataPacketHeader hdr = pkt->getHeader();
complex<float> val(1, 1);
for (uint32_t i = 0; i < hdr.len; ++i) {
pkt->putSample(i, val);
xPkt->putSample(i, val);
yPkt->putSample(i, val);
}
}
//
// set the valid flag for all remaining packets
//
data_valid = ATADataPacketHeader::DATA_VALID;
//
// add signals
//
for (PacketSigList::iterator p = signals.begin(); p != signals.end(); ++p) {
PacketSig sig = *p;
if (sig.tOff == 0.0)
{
if (sig.pol == ATADataPacketHeader::XLINEAR ||
sig.pol == ATADataPacketHeader::BOTH )
genX.addCwSignal(sig.freq, sig.drift, sig.snr);
if (sig.pol == ATADataPacketHeader::YLINEAR ||
sig.pol == ATADataPacketHeader::BOTH )
genY.addCwSignal(sig.freq, sig.drift, sig.snr);
}
else
{
if (sig.pol == ATADataPacketHeader::XLINEAR ||
sig.pol == ATADataPacketHeader::BOTH )
genX.addPulseSignal(sig.freq, sig.drift, sig.snr,
sig.tStart, sig.tOn, sig.tOff);
if (sig.pol == ATADataPacketHeader::YLINEAR ||
sig.pol == ATADataPacketHeader::BOTH )
genY.addPulseSignal(sig.freq, sig.drift, sig.snr,
sig.tStart, sig.tOn, sig.tOff);
}
}
gettimeofday(&start, NULL);
//
// now create and send packets at an interval or
// continuously
//
if (alarmInterval)
frameAlarm.set(&alarmHandler, alarmInterval, alarmInterval);
else
fullThrottle();
while (1)
;
}