////  AssignmentClientMonitor.h//  assignment-client/src////  Created by Stephen Birarda on 1/10/2014.//  Copyright 2014 High Fidelity, Inc.//  Copyright 2021 Vircadia contributors.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #ifndef hifi_AssignmentClientMonitor_h#define hifi_AssignmentClientMonitor_h #include <QtCore/QCoreApplication>#include <QtCore/qpointer.h>#include <QtCore/QProcess>#include <QtCore/QDateTime>#include <QtCore/QSharedPointer>#include <QDir> #include <Assignment.h> #include "AssignmentClientChildData.h"#include <HTTPManager.h>#include <HTTPConnection.h> extern const char* NUM_FORKS_PARAMETER; struct ACProcess {    QProcess* process; // looks like a dangling pointer, but is parented by the AssignmentClientMonitor    QString logStdoutPath;    QString logStderrPath;}; class AssignmentClientMonitor : public QObject, public HTTPRequestHandler {    Q_OBJECTpublic:    AssignmentClientMonitor(const unsigned int numAssignmentClientForks, const unsigned int minAssignmentClientForks,                            const unsigned int maxAssignmentClientForks, Assignment::Type requestAssignmentType,                            QString assignmentPool, quint16 listenPort, quint16 childMinListenPort,                            QString assignmentServerHostname, quint16 assignmentServerPort, quint16 httpStatusServerPort,                            QString logDirectory, bool disableDomainPortAutoDiscovery, QString logOptions);    ~AssignmentClientMonitor();     void stopChildProcesses();private slots:    void checkSpares();    void childProcessFinished(qint64 pid, quint16 port, int exitCode, QProcess::ExitStatus exitStatus);    void handleChildStatusPacket(QSharedPointer<ReceivedMessage> message);     bool handleHTTPRequest(HTTPConnection* connection, const QUrl& url, bool skipSubHandler = false) override; public slots:    void aboutToQuit(); private:    void spawnChildClient();    void simultaneousWaitOnChildren(int waitMsecs);    void adjustOSResources(unsigned int numForks) const;     QTimer _checkSparesTimer; // every few seconds see if it need fewer or more spare children     QDir _logDirectory;     HTTPManager _httpManager;     const unsigned int _numAssignmentClientForks;    const unsigned int _minAssignmentClientForks;    const unsigned int _maxAssignmentClientForks;     Assignment::Type _requestAssignmentType;    QString _assignmentPool;    QString _assignmentServerHostname;    quint16 _assignmentServerPort;     QMap<qint64, ACProcess> _childProcesses;     quint16 _childMinListenPort;    QSet<quint16> _childListenPorts;     bool _wantsChildFileLogging { false };    bool _disableDomainPortAutoDiscovery { false };     QString _logOptions;}; #endif // hifi_AssignmentClientMonitor_h