Example #1
0
void AssignmentClient::assignmentCompleted() {
    // reset the logging target to the the CHILD_TARGET_NAME
    Logging::setTargetName(ASSIGNMENT_CLIENT_TARGET_NAME);

    qDebug("Assignment finished or never started - waiting for new assignment\n");

    _currentAssignment = NULL;

    NodeList* nodeList = NodeList::getInstance();

    // reset our NodeList by switching back to unassigned and clearing the list
    nodeList->setOwnerType(NODE_TYPE_UNASSIGNED);
    nodeList->reset();
}
Example #2
0
void AssignmentClient::assignmentCompleted() {
    // reset the logging target to the the CHILD_TARGET_NAME
    Logging::setTargetName(ASSIGNMENT_CLIENT_TARGET_NAME);
    
    qDebug("Assignment finished or never started - waiting for new assignment.");
    
    NodeList* nodeList = NodeList::getInstance();

    // have us handle incoming NodeList datagrams again
    disconnect(&nodeList->getNodeSocket(), 0, _currentAssignment, 0);
    connect(&nodeList->getNodeSocket(), &QUdpSocket::readyRead, this, &AssignmentClient::readPendingDatagrams);
    
    _currentAssignment = NULL;

    // reset our NodeList by switching back to unassigned and clearing the list
    nodeList->setOwnerType(NodeType::Unassigned);
    nodeList->reset();
    nodeList->resetNodeInterestSet();
}
Example #3
0
void AssignmentClient::assignmentCompleted() {
    // reset the logging target to the the CHILD_TARGET_NAME
    LogHandler::getInstance().setTargetName(ASSIGNMENT_CLIENT_TARGET_NAME);

    qDebug("Assignment finished or never started - waiting for new assignment.");

    NodeList* nodeList = NodeList::getInstance();

    // have us handle incoming NodeList datagrams again
    disconnect(&nodeList->getNodeSocket(), 0, _currentAssignment.data(), 0);
    connect(&nodeList->getNodeSocket(), &QUdpSocket::readyRead, this, &AssignmentClient::readPendingDatagrams);

    // clear our current assignment shared pointer now that we're done with it
    // if the assignment thread is still around it has its own shared pointer to the assignment
    _currentAssignment.clear();

    // reset our NodeList by switching back to unassigned and clearing the list
    nodeList->setOwnerType(NodeType::Unassigned);
    nodeList->reset();
    nodeList->resetNodeInterestSet();
}
Example #4
0
void childClient() {
    // this is one of the child forks or there is a single assignment client, continue assignment-client execution
    
    // set the logging target to the the CHILD_TARGET_NAME
    Logging::setTargetName(CHILD_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 (customAssignmentSocket.sin_addr.s_addr != 0) {
        nodeList->setAssignmentServerSocket((sockaddr*) &customAssignmentSocket);
    }
    
    // change the timeout on the nodelist socket to be as often as we want to re-request
    nodeList->getNodeSocket()->setBlockingReceiveTimeoutInUsecs(ASSIGNMENT_REQUEST_INTERVAL_USECS);
    
    timeval lastRequest = {};
    
    unsigned char packetData[MAX_PACKET_SIZE];
    ssize_t receivedBytes = 0;
    
    sockaddr_in senderSocket = {};
    
    // create a request assignment, accept assignments defined by the overidden type
    Assignment requestAssignment(Assignment::RequestCommand, ::overiddenAssignmentType);
    
    while (true) {
        if (usecTimestampNow() - usecTimestamp(&lastRequest) >= ASSIGNMENT_REQUEST_INTERVAL_USECS) {
            gettimeofday(&lastRequest, NULL);
            // if we're here we have no assignment, so send a request
            qDebug() << "Sending an assignment request -" << requestAssignment << "\n";
            nodeList->sendAssignment(requestAssignment);
        }
        
        if (nodeList->getNodeSocket()->receive((sockaddr*) &senderSocket, packetData, &receivedBytes) &&
            (packetData[0] == PACKET_TYPE_DEPLOY_ASSIGNMENT || packetData[0] == PACKET_TYPE_CREATE_ASSIGNMENT)
            && packetVersionMatch(packetData)) {
            
            // construct the deployed assignment from the packet data
            Assignment* deployedAssignment = AssignmentFactory::unpackAssignment(packetData, receivedBytes);
            
            qDebug() << "Received an assignment -" << *deployedAssignment << "\n";
            
            // switch our nodelist domain IP and port to whoever sent us the assignment
            if (packetData[0] == PACKET_TYPE_CREATE_ASSIGNMENT) {
                
                nodeList->setDomainIP(QHostAddress((sockaddr*) &senderSocket));
                nodeList->setDomainPort(ntohs(senderSocket.sin_port));
                
                qDebug("Destination IP for assignment is %s\n", nodeList->getDomainIP().toString().toStdString().c_str());
                
                // run the deployed assignment
                deployedAssignment->run();
            } else {
                qDebug("Received a bad destination socket for assignment.\n");
            }
            
            qDebug("Assignment finished or never started - waiting for new assignment\n");
            
            // delete the deployedAssignment
            delete deployedAssignment;
            
            // reset our NodeList by switching back to unassigned and clearing the list
            nodeList->setOwnerType(NODE_TYPE_UNASSIGNED);
            nodeList->reset();
            
            // reset the logging target to the the CHILD_TARGET_NAME
            Logging::setTargetName(CHILD_TARGET_NAME);
        }
    }
}