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#pragma once

#define DELETE_SAVE(x) if(x != 0) \
{\
    delete x;\
    x = 0;\
}

#include <QObject>
#include <QFile>
#include <QSocketNotifier>

class ProcessManager : public QObject
{
    Q_OBJECT
public:
    explicit ProcessManager(const QString& prefix, const QString& id = "", bool useStdErr = false, QObject *parent = 0);
    ~ProcessManager();

    bool isOk();
    bool isRunning();
    bool start(const QString& program, QStringList args);

    QByteArray readAll();
    QByteArray readLine();
    qint64 write(const QByteArray& data);
    bool isWritable();
    bool setWorkingDirectory(const QString& path);

    void kill();
    void exit();

    void closeProgFifos();

    QString ID();

signals:
    void readyRead();
    void stdErrReadyRead();
    void finished(int);

public slots:

private slots:
    void ctrlOutReadyRead();
    void _stdOutReadyRead();
    void _stdErrReadyRead();

private:
    QString prefix;
    QString id;

    QFile ctrlIn;
    QFile ctrlOut;
    QFile stdIn;
    QFile stdOut;
    QFile stdErr;

    QSocketNotifier* ctrlOutNotifier = 0;
    QSocketNotifier* stdOutNotifier = 0;
    QSocketNotifier* stdErrNotifier = 0;

    bool useStdErr = false;

    bool ok = false;
    bool running = false;

    int pid = 0;
    int exitCode = 0;

    bool connectToIO();
};