WSJT-X/NonInheritingProcess.hpp

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#ifndef NON_INHERITING_PROCESS_HPP__
#define NON_INHERITING_PROCESS_HPP__
#include <QProcess>
#include "pimpl_h.hpp"
class QObject;
//
// class NonInheritingProcess - Manage a process without it inheriting
// all inheritable handles
//
// On MS Windows QProcess creates sub-processes which inherit all
// inheritable handles, and handles on Windows are inheritable by
// default. This can cause the lifetime of objects to be unexpectedly
// extended, which in turn can cause unexpected errors. The motivation
// for this class was implementing log file rotation using the Boost
// log library. The current log file's handle gets inherited by any
// long running sub-process started by QProcess and that causes a
// sharing violation when attempting to rename the log file on
// rotation, even though the log library closes the current log file
// before trying to rename it.
//
class NonInheritingProcess
: public QProcess
{
public:
NonInheritingProcess (QObject * parent = nullptr);
~NonInheritingProcess ();
private:
class impl;
pimpl<impl> m_;
};
#endif