void PairingHandler::sendPairRequest() {
// grab the node socket from the NodeList singleton
UDPSocket *nodeSocket = NodeList::getInstance()->getNodeSocket();
// prepare the pairing request packet
// use the getLocalAddress helper to get this client's listening address
int localAddress = getLocalAddress();
char pairPacket[24] = {};
sprintf(pairPacket, "Find %d.%d.%d.%d:%hu",
localAddress & 0xFF,
(localAddress >> 8) & 0xFF,
(localAddress >> 16) & 0xFF,
(localAddress >> 24) & 0xFF,
NodeList::getInstance()->getSocketListenPort());
qDebug("Sending pair packet: %s\n", pairPacket);
sockaddr_in pairingServerSocket;
pairingServerSocket.sin_family = AF_INET;
// lookup the pairing server IP by the hostname
struct hostent* hostInfo = gethostbyname(PAIRING_SERVER_HOSTNAME);
memcpy(&pairingServerSocket.sin_addr, hostInfo->h_addr_list[0], hostInfo->h_length);
pairingServerSocket.sin_port = htons(PAIRING_SERVER_PORT);
// send the pair request to the pairing server
nodeSocket->send((sockaddr*) &pairingServerSocket, pairPacket, strlen(pairPacket));
}
int main(int argc,char **argv) {
ALvoid *data;
ALsizei bits,freq,size;
ALenum format;
ALboolean success;
// Default packet size (in bytes)
// Note that this doesn't necessarily have to have anything to do with the
// buffer size of the receiver. Just set it to something appropriate
// (depending on the connection), and the receiver will take care of the
// playing the sound correctly...
unsigned int packetsize=10000;
const char defaultfile[]="bee.wav";
const char *filename;
if(argc>1)
filename=argv[1];
else
filename=defaultfile;
if(argc>2)
packetsize=atoi(argv[2]);
try {
success=alutLoadWAV(filename,&data,&format,&size,&bits,&freq);
std::cerr << "Bits: " << bits << " Freq: " << freq << std::endl;
if(success==AL_FALSE) {
std::cerr << "Error loading " << filename << "\n";
exit(1);
}
UDPSocket socket;
socket.setPeer(InetHostAddress("127.0.0.1"),33333);
int totalsent=0;
while(totalsent<size) {
// Send data in packets with a 60 ms delay between packets
if((totalsent+packetsize)>size)
packetsize=size-totalsent;
totalsent+=socket.send((char *)data+totalsent,packetsize);
ost::Thread::sleep(60);
}
free(data);
} catch(...) {
std::cerr << "Error caught!\n";
}
return 0;
}
Ping( bool is_server ) :
socket( ios, is_server ? Address(ios,SERVER_ADDR) : Address() )
{
if (is_server)
{
socket.addPacketListener( this );
for (;;)
ios.poll();
}
else
{
char msg[128] = "Hello";
socket.send( Address(ios,SERVER_ADDR), msg, strlen(msg)+1 );
}
}
bool PacketSender::process() {
uint64_t USECS_PER_SECOND = 1000 * 1000;
uint64_t SEND_INTERVAL_USECS = (_packetsPerSecond == 0) ? USECS_PER_SECOND : (USECS_PER_SECOND / _packetsPerSecond);
// keep track of our process call times, so we have a reliable account of how often our caller calls us
uint64_t now = usecTimestampNow();
uint64_t elapsedSinceLastCall = now - _lastProcessCallTime;
_lastProcessCallTime = now;
_averageProcessCallTime.updateAverage(elapsedSinceLastCall);
if (_packets.size() == 0) {
if (isThreaded()) {
usleep(SEND_INTERVAL_USECS);
} else {
return isStillRunning(); // in non-threaded mode, if there's nothing to do, just return, keep running till they terminate us
}
}
int packetsPerCall = _packets.size(); // in threaded mode, we just empty this!
int packetsThisCall = 0;
// if we're in non-threaded mode, then we actually need to determine how many packets to send per call to process
// based on how often we get called... We do this by keeping a running average of our call times, and we determine
// how many packets to send per call
if (!isThreaded()) {
int averageCallTime;
const int TRUST_AVERAGE_AFTER = AVERAGE_CALL_TIME_SAMPLES * 2;
if (_usecsPerProcessCallHint == 0 || _averageProcessCallTime.getSampleCount() > TRUST_AVERAGE_AFTER) {
averageCallTime = _averageProcessCallTime.getAverage();
} else {
averageCallTime = _usecsPerProcessCallHint;
}
// we can determine how many packets we need to send per call to achieve our desired
// packets per second send rate.
int callsPerSecond = USECS_PER_SECOND / averageCallTime;
packetsPerCall = ceil(_packetsPerSecond / callsPerSecond);
// send at least one packet per call, if we have it
if (packetsPerCall < 1) {
packetsPerCall = 1;
}
}
int packetsLeft = _packets.size();
bool keepGoing = packetsLeft > 0;
while (keepGoing) {
NetworkPacket& packet = _packets.front();
// send the packet through the NodeList...
UDPSocket* nodeSocket = NodeList::getInstance()->getNodeSocket();
nodeSocket->send(&packet.getAddress(), packet.getData(), packet.getLength());
packetsThisCall++;
if (_notify) {
_notify->packetSentNotification(packet.getLength());
}
lock();
_packets.erase(_packets.begin());
unlock();
packetsLeft = _packets.size();
// in threaded mode, we go till we're empty
if (isThreaded()) {
keepGoing = packetsLeft > 0;
// dynamically sleep until we need to fire off the next set of voxels we only sleep in threaded mode
if (keepGoing) {
uint64_t elapsed = now - _lastSendTime;
int usecToSleep = std::max(SEND_INTERVAL_USECS, SEND_INTERVAL_USECS - elapsed);
// we only sleep in non-threaded mode
if (usecToSleep > 0) {
usleep(usecToSleep);
}
}
} else {
// in non-threaded mode, we send as many packets as we need per expected call to process()
keepGoing = (packetsThisCall < packetsPerCall) && (packetsLeft > 0);
}
_lastSendTime = now;
}
return isStillRunning(); // keep running till they terminate us
}
main() {
UDPSocket s;
s.send("test","localhost",9999);
s.close();
}
