void Agent::run() {
NodeList::getInstance()->setOwnerType(NODE_TYPE_AGENT);
NodeList::getInstance()->setNodeTypesOfInterest(&NODE_TYPE_VOXEL_SERVER, 1);
QNetworkAccessManager manager;
// figure out the URL for the script for this agent assignment
QString scriptURLString("http://%1:8080/assignment/%2");
scriptURLString = scriptURLString.arg(NodeList::getInstance()->getDomainIP().toString(),
this->getUUIDStringWithoutCurlyBraces());
QUrl scriptURL(scriptURLString);
qDebug() << "Attemping download of " << scriptURL << "\n";
QNetworkReply* reply = manager.get(QNetworkRequest(scriptURL));
QEventLoop loop;
QObject::connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
loop.exec();
QString scriptString = QString(reply->readAll());
QScriptEngine engine;
QScriptValue agentValue = engine.newQObject(this);
engine.globalObject().setProperty("Agent", agentValue);
VoxelScriptingInterface voxelScripter;
QScriptValue voxelScripterValue = engine.newQObject(&voxelScripter);
engine.globalObject().setProperty("Voxels", voxelScripterValue);
qDebug() << "Downloaded script:" << scriptString << "\n";
qDebug() << "Evaluated script:" << engine.evaluate(scriptString).toString() << "\n";
timeval thisSend;
timeval lastDomainServerCheckIn = {};
int numMicrosecondsSleep = 0;
const long long DATA_SEND_INTERVAL_USECS = (1 / 60.0f) * 1000 * 1000;
sockaddr_in senderAddress;
unsigned char receivedData[MAX_PACKET_SIZE];
ssize_t receivedBytes;
while (!_shouldStop) {
// update the thisSend timeval to the current time
gettimeofday(&thisSend, NULL);
// if we're not hearing from the domain-server we should stop running
if (NodeList::getInstance()->getNumNoReplyDomainCheckIns() == MAX_SILENT_DOMAIN_SERVER_CHECK_INS) {
break;
}
// send a check in packet to the domain server if DOMAIN_SERVER_CHECK_IN_USECS has elapsed
if (usecTimestampNow() - usecTimestamp(&lastDomainServerCheckIn) >= DOMAIN_SERVER_CHECK_IN_USECS) {
gettimeofday(&lastDomainServerCheckIn, NULL);
NodeList::getInstance()->sendDomainServerCheckIn();
}
// allow the scripter's call back to setup visual data
emit preSendCallback();
// flush the voxel packet queue
voxelScripter.getVoxelPacketSender()->process();
if (NodeList::getInstance()->getNodeSocket()->receive((sockaddr*) &senderAddress, receivedData, &receivedBytes)) {
NodeList::getInstance()->processNodeData((sockaddr*) &senderAddress, receivedData, receivedBytes);
}
// sleep for the correct amount of time to have data send be consistently timed
if ((numMicrosecondsSleep = DATA_SEND_INTERVAL_USECS - (usecTimestampNow() - usecTimestamp(&thisSend))) > 0) {
usleep(numMicrosecondsSleep);
}
}
}
void Agent::run() {
NodeList* nodeList = NodeList::getInstance();
nodeList->setOwnerType(NODE_TYPE_AGENT);
const char AGENT_NODE_TYPES_OF_INTEREST[2] = { NODE_TYPE_VOXEL_SERVER, NODE_TYPE_AUDIO_MIXER };
nodeList->setNodeTypesOfInterest(AGENT_NODE_TYPES_OF_INTEREST, sizeof(AGENT_NODE_TYPES_OF_INTEREST));
nodeList->getNodeSocket()->setBlocking(false);
// figure out the URL for the script for this agent assignment
QString scriptURLString("http://%1:8080/assignment/%2");
scriptURLString = scriptURLString.arg(NodeList::getInstance()->getDomainIP().toString(),
uuidStringWithoutCurlyBraces(_uuid));
// setup curl for script download
CURLcode curlResult;
CURL* curlHandle = curl_easy_init();
// tell curl which file to grab
curl_easy_setopt(curlHandle, CURLOPT_URL, scriptURLString.toStdString().c_str());
// send the data to the WriteMemoryCallback function
curl_easy_setopt(curlHandle, CURLOPT_WRITEFUNCTION, writeScriptDataToString);
QString scriptContents;
// pass the scriptContents QString to append data to
curl_easy_setopt(curlHandle, CURLOPT_WRITEDATA, (void *)&scriptContents);
// send a user agent since some servers will require it
curl_easy_setopt(curlHandle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
// make sure CURL fails on a 400 code
curl_easy_setopt(curlHandle, CURLOPT_FAILONERROR, true);
qDebug() << "Downloading script at" << scriptURLString << "\n";
// blocking get for JS file
curlResult = curl_easy_perform(curlHandle);
if (curlResult == CURLE_OK) {
// cleanup curl
curl_easy_cleanup(curlHandle);
curl_global_cleanup();
QScriptEngine engine;
// register meta-type for glm::vec3 conversions
qScriptRegisterMetaType(&engine, vec3toScriptValue, vec3FromScriptValue);
QScriptValue agentValue = engine.newQObject(this);
engine.globalObject().setProperty("Agent", agentValue);
VoxelScriptingInterface voxelScripter;
QScriptValue voxelScripterValue = engine.newQObject(&voxelScripter);
engine.globalObject().setProperty("Voxels", voxelScripterValue);
QScriptValue treeScaleValue = engine.newVariant(QVariant(TREE_SCALE));
engine.globalObject().setProperty("TREE_SCALE", treeScaleValue);
// let the VoxelPacketSender know how frequently we plan to call it
voxelScripter.getVoxelPacketSender()->setProcessCallIntervalHint(INJECT_INTERVAL_USECS);
// hook in a constructor for audio injectorss
AudioInjector scriptedAudioInjector(BUFFER_LENGTH_SAMPLES_PER_CHANNEL);
QScriptValue audioInjectorValue = engine.newQObject(&scriptedAudioInjector);
engine.globalObject().setProperty("AudioInjector", audioInjectorValue);
qDebug() << "Downloaded script:" << scriptContents << "\n";
QScriptValue result = engine.evaluate(scriptContents);
qDebug() << "Evaluated script.\n";
if (engine.hasUncaughtException()) {
int line = engine.uncaughtExceptionLineNumber();
qDebug() << "Uncaught exception at line" << line << ":" << result.toString() << "\n";
}
timeval startTime;
gettimeofday(&startTime, NULL);
timeval lastDomainServerCheckIn = {};
sockaddr_in senderAddress;
unsigned char receivedData[MAX_PACKET_SIZE];
ssize_t receivedBytes;
int thisFrame = 0;
NodeList::getInstance()->startSilentNodeRemovalThread();
while (!_shouldStop) {
// if we're not hearing from the domain-server we should stop running
if (NodeList::getInstance()->getNumNoReplyDomainCheckIns() == MAX_SILENT_DOMAIN_SERVER_CHECK_INS) {
break;
}
// send a check in packet to the domain server if DOMAIN_SERVER_CHECK_IN_USECS has elapsed
if (usecTimestampNow() - usecTimestamp(&lastDomainServerCheckIn) >= DOMAIN_SERVER_CHECK_IN_USECS) {
gettimeofday(&lastDomainServerCheckIn, NULL);
NodeList::getInstance()->sendDomainServerCheckIn();
}
// find the audio-mixer in the NodeList so we can inject audio at it
Node* audioMixer = NodeList::getInstance()->soloNodeOfType(NODE_TYPE_AUDIO_MIXER);
if (audioMixer && audioMixer->getActiveSocket()) {
emit willSendAudioDataCallback();
}
int usecToSleep = usecTimestamp(&startTime) + (thisFrame++ * INJECT_INTERVAL_USECS) - usecTimestampNow();
if (usecToSleep > 0) {
usleep(usecToSleep);
}
if (audioMixer && audioMixer->getActiveSocket() && scriptedAudioInjector.hasSamplesToInject()) {
// we have an audio mixer and samples to inject, send those off
scriptedAudioInjector.injectAudio(NodeList::getInstance()->getNodeSocket(), audioMixer->getActiveSocket());
// clear out the audio injector so that it doesn't re-send what we just sent
scriptedAudioInjector.clear();
}
if (audioMixer && !audioMixer->getActiveSocket()) {
// don't have an active socket for the audio-mixer, ping it now
NodeList::getInstance()->pingPublicAndLocalSocketsForInactiveNode(audioMixer);
}
if (voxelScripter.getVoxelPacketSender()->voxelServersExist()) {
// allow the scripter's call back to setup visual data
emit willSendVisualDataCallback();
// release the queue of edit voxel messages.
voxelScripter.getVoxelPacketSender()->releaseQueuedMessages();
// since we're in non-threaded mode, call process so that the packets are sent
voxelScripter.getVoxelPacketSender()->process();
}
if (engine.hasUncaughtException()) {
int line = engine.uncaughtExceptionLineNumber();
qDebug() << "Uncaught exception at line" << line << ":" << engine.uncaughtException().toString() << "\n";
}
while (NodeList::getInstance()->getNodeSocket()->receive((sockaddr*) &senderAddress, receivedData, &receivedBytes)
&& packetVersionMatch(receivedData)) {
if (receivedData[0] == PACKET_TYPE_VOXEL_JURISDICTION) {
voxelScripter.getJurisdictionListener()->queueReceivedPacket((sockaddr&) senderAddress,
receivedData,
receivedBytes);
} else {
NodeList::getInstance()->processNodeData((sockaddr*) &senderAddress, receivedData, receivedBytes);
}
}
}
NodeList::getInstance()->stopSilentNodeRemovalThread();
} else {
// error in curl_easy_perform
qDebug() << "curl_easy_perform for JS failed:" << curl_easy_strerror(curlResult) << "\n";
// cleanup curl
curl_easy_cleanup(curlHandle);
curl_global_cleanup();
}
}