executor.h

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#ifndef EXECUTOR_H
#define EXECUTOR_H
 
#include <QObject>
#include <QProcess>
#include <QQueue>
 
class Executor : public QObject {
  Q_OBJECT
 
  struct execQueueItem {
    int id;
    QString app;
    QStringList args;
    QString input;
    bool readStdout;
    bool readStderr;
    QString workingDir;
  };
 
  QQueue<execQueueItem> m_execQueue;
  QProcess m_process;
  bool running;
  void executeNext();
 
public:
  explicit Executor(QObject *parent = 0);
 
  void execute(int id, const QString &app, const QStringList &args,
               bool readStdout, bool readStderr = true);
 
  void execute(int id, const QString &workDir, const QString &app,
               const QStringList &args, bool readStdout,
               bool readStderr = true);
 
  void execute(int id, const QString &app, const QStringList &args,
               QString input = QString(), bool readStdout = false,
               bool readStderr = true);
 
  void execute(int id, const QString &workDir, const QString &app,
               const QStringList &args, QString input = QString(),
               bool readStdout = false, bool readStderr = true);
 
  static int executeBlocking(QString app, const QStringList &args,
                             QString input = QString(),
                             QString *process_out = Q_NULLPTR,
                             QString *process_err = Q_NULLPTR);
 
  static int executeBlocking(QString app, const QStringList &args,
                             QString *process_out,
                             QString *process_err = Q_NULLPTR);
 
  void setEnvironment(const QStringList &env);
 
  int cancelNext();
private slots:
  void finished(int exitCode, QProcess::ExitStatus exitStatus);
signals:
  void finished(int id, int exitCode, const QString &output,
                const QString &errout);
  void starting();
  void error(int id, int exitCode, const QString &output,
             const QString &errout);
};
 
#endif // EXECUTOR_H