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break on MTU size packets from domain-list, closes #2312

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This commit is contained in:
Stephen Birarda 2014-03-17 09:19:05 -07:00
parent c24abb644d
commit f652df9399
1 changed files with 25 additions and 2 deletions
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27
domain-server/src/DomainServer.cpp
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@ -423,17 +423,25 @@ void DomainServer::sendDomainListToNode(const SharedNodePointer& node, const Hif
QDataStream broadcastDataStream(&broadcastPacket, QIODevice::Append);
broadcastDataStream << node->getUUID();
int numBroadcastPacketLeadBytes = broadcastDataStream.device()->pos();
DomainServerNodeData* nodeData = reinterpret_cast<DomainServerNodeData*>(node->getLinkedData());
NodeList* nodeList = NodeList::getInstance();
if (nodeInterestList.size() > 0) {
// if the node has any interest types, send back those nodes as well
foreach (const SharedNodePointer& otherNode, nodeList->getNodeHash()) {
// reset our nodeByteArray and nodeDataStream
QByteArray nodeByteArray;
QDataStream nodeDataStream(&nodeByteArray, QIODevice::Append);
if (otherNode->getUUID() != node->getUUID() && nodeInterestList.contains(otherNode->getType())) {
// don't send avatar nodes to other avatars, that will come from avatar mixer
broadcastDataStream << *otherNode.data();
nodeDataStream << *otherNode.data();
// pack the secret that these two nodes will use to communicate with each other
QUuid secretUUID = nodeData->getSessionSecretHash().value(otherNode->getUUID());
@ -450,11 +458,26 @@ void DomainServer::sendDomainListToNode(const SharedNodePointer& node, const Hif
}
broadcastDataStream << secretUUID;
nodeDataStream << secretUUID;
if (broadcastPacket.size() + nodeByteArray.size() > MAX_PACKET_SIZE) {
// we need to break here and start a new packet
// so send the current one
nodeList->writeDatagram(broadcastPacket, node, senderSockAddr);
// reset the broadcastPacket structure
broadcastPacket.resize(numBroadcastPacketLeadBytes);
broadcastDataStream.device()->seek(numBroadcastPacketLeadBytes);
}
// append the nodeByteArray to the current state of broadcastDataStream
broadcastPacket.append(nodeByteArray);
}
}
}
// always write the last broadcastPacket
nodeList->writeDatagram(broadcastPacket, node, senderSockAddr);
}