qint64 LimitedNodeList::sendPacket(std::unique_ptr<NLPacket> packet, const Node& destinationNode,
const HifiSockAddr& overridenSockAddr) {
if (overridenSockAddr.isNull() && !destinationNode.getActiveSocket()) {
qCDebug(networking) << "LimitedNodeList::sendPacket called without active socket for node. Not sending.";
return 0;
}
// use the node's active socket as the destination socket if there is no overriden socket address
auto& destinationSockAddr = (overridenSockAddr.isNull()) ? *destinationNode.getActiveSocket()
: overridenSockAddr;
return sendPacket(std::move(packet), destinationSockAddr, destinationNode.getConnectionSecret());
}
qint64 LimitedNodeList::writeUnverifiedDatagram(const QByteArray& datagram, const SharedNodePointer& destinationNode,
const HifiSockAddr& overridenSockAddr) {
if (destinationNode) {
// if we don't have an ovveriden address, assume they want to send to the node's active socket
const HifiSockAddr* destinationSockAddr = &overridenSockAddr;
if (overridenSockAddr.isNull()) {
if (destinationNode->getActiveSocket()) {
// use the node's active socket as the destination socket
destinationSockAddr = destinationNode->getActiveSocket();
} else {
// we don't have a socket to send to, return 0
return 0;
}
}
PacketType packetType = packetTypeForPacket(datagram);
// optionally peform sequence number replacement in the header
if (SEQUENCE_NUMBERED_PACKETS.contains(packetType)) {
QByteArray datagramCopy = datagram;
PacketSequenceNumber sequenceNumber = getNextSequenceNumberForPacket(destinationNode->getUUID(), packetType);
replaceSequenceNumberInPacket(datagramCopy, sequenceNumber, packetType);
// send the datagram with sequence number replaced in header
return writeDatagram(datagramCopy, *destinationSockAddr);
} else {
return writeDatagram(datagram, *destinationSockAddr);
}
}
// didn't have a destinationNode to send to, return 0
return 0;
}
AssignmentClient::AssignmentClient(int &argc, char **argv,
Assignment::Type requestAssignmentType,
const HifiSockAddr& customAssignmentServerSocket,
const char* requestAssignmentPool) :
QCoreApplication(argc, argv),
_requestAssignment(Assignment::RequestCommand, requestAssignmentType, requestAssignmentPool),
_currentAssignment(NULL)
{
// register meta type is required for queued invoke method on Assignment subclasses
// set the logging target to the the CHILD_TARGET_NAME
Logging::setTargetName(ASSIGNMENT_CLIENT_TARGET_NAME);
// create a NodeList as an unassigned client
NodeList* nodeList = NodeList::createInstance(NODE_TYPE_UNASSIGNED);
// set the custom assignment socket if we have it
if (!customAssignmentServerSocket.isNull()) {
nodeList->setAssignmentServerSocket(customAssignmentServerSocket);
}
// call a timer function every ASSIGNMENT_REQUEST_INTERVAL_MSECS to ask for assignment, if required
qDebug() << "Waiting for assignment -" << _requestAssignment << "\n";
QTimer* timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), SLOT(sendAssignmentRequest()));
timer->start(ASSIGNMENT_REQUEST_INTERVAL_MSECS);
// connect our readPendingDatagrams method to the readyRead() signal of the socket
connect(&nodeList->getNodeSocket(), SIGNAL(readyRead()), this, SLOT(readPendingDatagrams()));
}
qint64 LimitedNodeList::sendPacket(std::unique_ptr<NLPacket> packet, const Node& destinationNode,
const HifiSockAddr& overridenSockAddr) {
// use the node's active socket as the destination socket if there is no overriden socket address
auto& destinationSockAddr = (overridenSockAddr.isNull()) ? *destinationNode.getActiveSocket()
: overridenSockAddr;
return sendPacket(std::move(packet), destinationSockAddr, destinationNode.getConnectionSecret());
}
qint64 LimitedNodeList::writeDatagram(const QByteArray& datagram,
const SharedNodePointer& destinationNode,
const HifiSockAddr& overridenSockAddr) {
if (destinationNode) {
PacketType packetType = packetTypeForPacket(datagram);
if (NON_VERIFIED_PACKETS.contains(packetType)) {
return writeUnverifiedDatagram(datagram, destinationNode, overridenSockAddr);
}
// if we don't have an overridden address, assume they want to send to the node's active socket
const HifiSockAddr* destinationSockAddr = &overridenSockAddr;
if (overridenSockAddr.isNull()) {
if (destinationNode->getActiveSocket()) {
// use the node's active socket as the destination socket
destinationSockAddr = destinationNode->getActiveSocket();
} else {
// we don't have a socket to send to, return 0
return 0;
}
}
QByteArray datagramCopy = datagram;
// if we're here and the connection secret is null, debug out - this could be a problem
if (destinationNode->getConnectionSecret().isNull()) {
qDebug() << "LimitedNodeList::writeDatagram called for verified datagram with null connection secret for"
<< "destination node" << destinationNode->getUUID() << " - this is either not secure or will cause"
<< "this packet to be unverifiable on the receiving side.";
}
// perform replacement of hash and optionally also sequence number in the header
if (SEQUENCE_NUMBERED_PACKETS.contains(packetType)) {
PacketSequenceNumber sequenceNumber = getNextSequenceNumberForPacket(destinationNode->getUUID(), packetType);
replaceHashAndSequenceNumberInPacket(datagramCopy, destinationNode->getConnectionSecret(),
sequenceNumber, packetType);
} else {
replaceHashInPacket(datagramCopy, destinationNode->getConnectionSecret(), packetType);
}
emit dataSent(destinationNode->getType(), datagram.size());
auto bytesWritten = writeDatagram(datagramCopy, *destinationSockAddr);
// Keep track of per-destination-node bandwidth
destinationNode->recordBytesSent(bytesWritten);
return bytesWritten;
}
// didn't have a destinationNode to send to, return 0
return 0;
}
qint64 LimitedNodeList::writeDatagram(const QByteArray& datagram, const SharedNodePointer& destinationNode,
const HifiSockAddr& overridenSockAddr) {
if (destinationNode) {
// if we don't have an ovveriden address, assume they want to send to the node's active socket
const HifiSockAddr* destinationSockAddr = &overridenSockAddr;
if (overridenSockAddr.isNull()) {
if (destinationNode->getActiveSocket()) {
// use the node's active socket as the destination socket
destinationSockAddr = destinationNode->getActiveSocket();
} else {
// we don't have a socket to send to, return 0
return 0;
}
}
return writeDatagram(datagram, *destinationSockAddr, destinationNode->getConnectionSecret());
}
// didn't have a destinationNode to send to, return 0
return 0;
}
AssignmentClient::AssignmentClient(int &argc, char **argv) :
QCoreApplication(argc, argv),
_currentAssignment(NULL)
{
// register meta type is required for queued invoke method on Assignment subclasses
// set the logging target to the the CHILD_TARGET_NAME
Logging::setTargetName(ASSIGNMENT_CLIENT_TARGET_NAME);
const char ASSIGNMENT_TYPE_OVVERIDE_OPTION[] = "-t";
const char* assignmentTypeString = getCmdOption(argc, (const char**)argv, ASSIGNMENT_TYPE_OVVERIDE_OPTION);
Assignment::Type requestAssignmentType = Assignment::AllTypes;
if (assignmentTypeString) {
// the user is asking to only be assigned to a particular type of assignment
// so set that as the ::overridenAssignmentType to be used in requests
requestAssignmentType = (Assignment::Type) atoi(assignmentTypeString);
}
const char ASSIGNMENT_POOL_OPTION[] = "--pool";
const char* requestAssignmentPool = getCmdOption(argc, (const char**) argv, ASSIGNMENT_POOL_OPTION);
// setup our _requestAssignment member variable from the passed arguments
_requestAssignment = Assignment(Assignment::RequestCommand, requestAssignmentType, requestAssignmentPool);
// create a NodeList as an unassigned client
NodeList* nodeList = NodeList::createInstance(NodeType::Unassigned);
const char CUSTOM_ASSIGNMENT_SERVER_HOSTNAME_OPTION[] = "-a";
const char CUSTOM_ASSIGNMENT_SERVER_PORT_OPTION[] = "-p";
// grab the overriden assignment-server hostname from argv, if it exists
const char* customAssignmentServerHostname = getCmdOption(argc, (const char**)argv, CUSTOM_ASSIGNMENT_SERVER_HOSTNAME_OPTION);
const char* customAssignmentServerPortString = getCmdOption(argc,(const char**)argv, CUSTOM_ASSIGNMENT_SERVER_PORT_OPTION);
HifiSockAddr customAssignmentSocket;
if (customAssignmentServerHostname || customAssignmentServerPortString) {
// set the custom port or default if it wasn't passed
unsigned short assignmentServerPort = customAssignmentServerPortString
? atoi(customAssignmentServerPortString) : DEFAULT_DOMAIN_SERVER_PORT;
// set the custom hostname or default if it wasn't passed
if (!customAssignmentServerHostname) {
customAssignmentServerHostname = DEFAULT_ASSIGNMENT_SERVER_HOSTNAME;
}
customAssignmentSocket = HifiSockAddr(customAssignmentServerHostname, assignmentServerPort);
}
// set the custom assignment socket if we have it
if (!customAssignmentSocket.isNull()) {
nodeList->setAssignmentServerSocket(customAssignmentSocket);
}
// call a timer function every ASSIGNMENT_REQUEST_INTERVAL_MSECS to ask for assignment, if required
qDebug() << "Waiting for assignment -" << _requestAssignment;
QTimer* timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), SLOT(sendAssignmentRequest()));
timer->start(ASSIGNMENT_REQUEST_INTERVAL_MSECS);
// connect our readPendingDatagrams method to the readyRead() signal of the socket
connect(&nodeList->getNodeSocket(), &QUdpSocket::readyRead, this, &AssignmentClient::readPendingDatagrams,
Qt::QueuedConnection);
}