Index: /trunk/src/VBox/Main/include/GuestSessionImpl.h
===================================================================
--- /trunk/src/VBox/Main/include/GuestSessionImpl.h	(revision 71647)
+++ /trunk/src/VBox/Main/include/GuestSessionImpl.h	(revision 71648)
@@ -27,291 +27,8 @@
 #include "GuestFileImpl.h"
 #include "GuestFsObjInfoImpl.h"
-#include "ThreadTask.h"
-
-#include <iprt/isofs.h> /* For UpdateAdditions. */
 
 #include <deque>
 
-class Guest;
-class GuestSessionTaskInternalOpen;
-
-/**
- * Abstract base class for a lenghtly per-session operation which
- * runs in a Main worker thread.
- */
-class GuestSessionTask : public ThreadTask
-{
-public:
-
-    GuestSessionTask(GuestSession *pSession);
-
-    virtual ~GuestSessionTask(void);
-
-public:
-
-    virtual int Run(void) = 0;
-    void handler()
-    {
-        int vrc = Run();
-        NOREF(vrc);
-        /** @todo
-         *
-         * r=bird: what was your idea WRT to Run status code and async tasks?
-         *
-         */
-    }
-
-    int RunAsync(const Utf8Str &strDesc, ComObjPtr<Progress> &pProgress);
-
-    HRESULT Init(const Utf8Str &strTaskDesc)
-    {
-        HRESULT hr = S_OK;
-        setTaskDesc(strTaskDesc);
-        hr = createAndSetProgressObject();
-        return hr;
-    }
-
-    const ComObjPtr<Progress>& GetProgressObject() const { return mProgress; }
-
-protected:
-
-    /** @name Directory handling primitives.
-     * @{ */
-    int directoryCreate(const com::Utf8Str &strPath, DirectoryCreateFlag_T enmDirecotryCreateFlags, uint32_t uMode,
-                        bool fFollowSymlinks);
-    /** @}  */
-
-    /** @name File handling primitives.
-     * @{ */
-    int fileCopyFromEx(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags,
-                       PRTFILE pFile, uint64_t cbOffset, uint64_t cbSize);
-    int fileCopyFrom(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
-    int fileCopyToEx(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags, PRTFILE pFile,
-                     uint64_t cbOffset, uint64_t cbSize); /**< r=bird: 'cbOffset' makes no sense what so ever. It should be 'off', or do you mean sizeof(uint64_t)? */
-    int fileCopyTo(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
-    /** @}  */
-
-    /** @name Guest property handling primitives.
-     * @{ */
-    int getGuestProperty(const ComObjPtr<Guest> &pGuest, const Utf8Str &strPath, Utf8Str &strValue);
-    /** @}  */
-
-    /** @name Path handling primitives.
-     * @{ */
-    int pathConstructOnGuest(const Utf8Str &strSourceRoot, const Utf8Str &strSource, const Utf8Str &strDest, Utf8Str &strOut);
-    /** @}  */
-
-    int setProgress(ULONG uPercent);
-    int setProgressSuccess(void);
-    HRESULT setProgressErrorMsg(HRESULT hr, const Utf8Str &strMsg);
-
-    inline void setTaskDesc(const Utf8Str &strTaskDesc) throw()
-    {
-        mDesc = strTaskDesc;
-    }
-
-    HRESULT createAndSetProgressObject();
-
-protected:
-
-    Utf8Str                 mDesc;
-    /** The guest session object this task is working on. */
-    ComObjPtr<GuestSession> mSession;
-    /** Progress object for getting updated when running
-     *  asynchronously. Optional. */
-    ComObjPtr<Progress>     mProgress;
-};
-
-/**
- * Task for opening a guest session.
- */
-class SessionTaskOpen : public GuestSessionTask
-{
-public:
-
-    SessionTaskOpen(GuestSession *pSession,
-                    uint32_t uFlags,
-                    uint32_t uTimeoutMS);
-    virtual ~SessionTaskOpen(void);
-    int Run(void);
-
-protected:
-
-    /** Session creation flags. */
-    uint32_t mFlags;
-    /** Session creation timeout (in ms). */
-    uint32_t mTimeoutMS;
-};
-
-/**
- * Task for copying directories from guest to the host.
- */
-class SessionTaskCopyDirFrom : public GuestSessionTask
-{
-public:
-
-    SessionTaskCopyDirFrom(GuestSession *pSession, const Utf8Str &strSource, const Utf8Str &strDest, const Utf8Str &strFilter,
-                           DirectoryCopyFlag_T enmDirCopyFlags);
-    virtual ~SessionTaskCopyDirFrom(void);
-    int Run(void);
-
-protected:
-
-    int directoryCopyToHost(const Utf8Str &strSource, const Utf8Str &strFilter, const Utf8Str &strDest, bool fRecursive,
-                            bool fFollowSymlinks, const Utf8Str &strSubDir /* For recursion. */);
-protected:
-
-    Utf8Str             mSource;
-    Utf8Str             mDest;
-    Utf8Str             mFilter;
-    DirectoryCopyFlag_T mDirCopyFlags;
-};
-
-/**
- * Task for copying directories from host to the guest.
- */
-class SessionTaskCopyDirTo : public GuestSessionTask
-{
-public:
-
-    SessionTaskCopyDirTo(GuestSession *pSession, const Utf8Str &strSource, const Utf8Str &strDest, const Utf8Str &strFilter,
-                         DirectoryCopyFlag_T enmDirCopyFlags);
-    virtual ~SessionTaskCopyDirTo(void);
-    int Run(void);
-
-protected:
-
-    int directoryCopyToGuest(const Utf8Str &strSource, const Utf8Str &strFilter, const Utf8Str &strDest, bool fRecursive,
-                             bool fFollowSymlinks, const Utf8Str &strSubDir /* For recursion. */);
-protected:
-
-    Utf8Str             mSource;
-    Utf8Str             mDest;
-    Utf8Str             mFilter;
-    DirectoryCopyFlag_T mDirCopyFlags;
-};
-
-/**
- * Task for copying files from host to the guest.
- */
-class SessionTaskCopyFileTo : public GuestSessionTask
-{
-public:
-
-    SessionTaskCopyFileTo(GuestSession *pSession,
-                          const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
-    SessionTaskCopyFileTo(GuestSession *pSession,
-                          PRTFILE pSourceFile, size_t cbSourceOffset, uint64_t cbSourceSize,
-                          const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
-    virtual ~SessionTaskCopyFileTo(void);
-    int Run(void);
-
-protected:
-
-    Utf8Str        mSource;
-    PRTFILE        mSourceFile;
-    size_t         mSourceOffset;
-    uint64_t       mSourceSize;
-    Utf8Str        mDest;
-    FileCopyFlag_T mFileCopyFlags;
-};
-
-/**
- * Task for copying files from guest to the host.
- */
-class SessionTaskCopyFileFrom : public GuestSessionTask
-{
-public:
-
-    SessionTaskCopyFileFrom(GuestSession *pSession,
-                        const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
-    virtual ~SessionTaskCopyFileFrom(void);
-    int Run(void);
-
-protected:
-
-    Utf8Str        mSource;
-    Utf8Str        mDest;
-    FileCopyFlag_T mFileCopyFlags;
-};
-
-/**
- * Task for automatically updating the Guest Additions on the guest.
- */
-class SessionTaskUpdateAdditions : public GuestSessionTask
-{
-public:
-
-    SessionTaskUpdateAdditions(GuestSession *pSession,
-                               const Utf8Str &strSource, const ProcessArguments &aArguments,
-                               uint32_t uFlags);
-    virtual ~SessionTaskUpdateAdditions(void);
-    int Run(void);
-
-protected:
-
-    /**
-     * Suported OS types for automatic updating.
-     */
-    enum eOSType
-    {
-        eOSType_Unknown = 0,
-        eOSType_Windows = 1,
-        eOSType_Linux   = 2,
-        eOSType_Solaris = 3
-    };
-
-    /**
-     * Structure representing a file to
-     * get off the .ISO, copied to the guest.
-     */
-    struct InstallerFile
-    {
-        InstallerFile(const Utf8Str &aSource,
-                      const Utf8Str &aDest,
-                      uint32_t       aFlags = 0)
-            : strSource(aSource),
-              strDest(aDest),
-              fFlags(aFlags) { }
-
-        InstallerFile(const Utf8Str          &aSource,
-                      const Utf8Str          &aDest,
-                      uint32_t                aFlags,
-                      const GuestProcessStartupInfo &aStartupInfo)
-            : strSource(aSource),
-              strDest(aDest),
-              fFlags(aFlags),
-              mProcInfo(aStartupInfo)
-        {
-            mProcInfo.mExecutable = strDest;
-            if (mProcInfo.mName.isEmpty())
-                mProcInfo.mName = strDest;
-        }
-
-        /** Source file on .ISO. */
-        Utf8Str                 strSource;
-        /** Destination file on the guest. */
-        Utf8Str                 strDest;
-        /** File flags. */
-        uint32_t                fFlags;
-        /** Optional arguments if this file needs to be
-         *  executed. */
-        GuestProcessStartupInfo mProcInfo;
-    };
-
-    int addProcessArguments(ProcessArguments &aArgumentsDest, const ProcessArguments &aArgumentsSource);
-    int copyFileToGuest(GuestSession *pSession, PRTISOFSFILE pISO, Utf8Str const &strFileSource, const Utf8Str &strFileDest, bool fOptional, uint32_t *pcbSize);
-    int runFileOnGuest(GuestSession *pSession, GuestProcessStartupInfo &procInfo);
-
-    /** Files to handle. */
-    std::vector<InstallerFile> mFiles;
-    /** The (optionally) specified Guest Additions .ISO on the host
-     *  which will be used for the updating process. */
-    Utf8Str                    mSource;
-    /** (Optional) installer command line arguments. */
-    ProcessArguments           mArguments;
-    /** Update flags. */
-    uint32_t                   mFlags;
-};
+class GuestSessionTaskInternalOpen; /* Needed for i_startSessionThreadTask(). */
 
 /**
Index: /trunk/src/VBox/Main/include/GuestSessionImplTasks.h
===================================================================
--- /trunk/src/VBox/Main/include/GuestSessionImplTasks.h	(revision 71648)
+++ /trunk/src/VBox/Main/include/GuestSessionImplTasks.h	(revision 71648)
@@ -0,0 +1,311 @@
+/* $Id$ */
+/** @file
+ * VirtualBox Main - Guest session tasks header.
+ */
+
+/*
+ * Copyright (C) 2018 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+#ifndef ____H_GUESTSESSIONIMPL_TASKS
+#define ____H_GUESTSESSIONIMPL_TASKS
+
+#include "GuestSessionWrap.h"
+#include "EventImpl.h"
+
+#include "GuestCtrlImplPrivate.h"
+#include "GuestSessionImpl.h"
+#include "ThreadTask.h"
+
+#include <iprt/isofs.h> /* For UpdateAdditions. */
+
+class Guest;
+class GuestSessionTaskInternalOpen;
+
+/**
+ * Abstract base class for a lenghtly per-session operation which
+ * runs in a Main worker thread.
+ */
+class GuestSessionTask : public ThreadTask
+{
+public:
+
+    GuestSessionTask(GuestSession *pSession);
+
+    virtual ~GuestSessionTask(void);
+
+public:
+
+    virtual int Run(void) = 0;
+    void handler()
+    {
+        int vrc = Run();
+        NOREF(vrc);
+        /** @todo
+         *
+         * r=bird: what was your idea WRT to Run status code and async tasks?
+         *
+         */
+    }
+
+    int RunAsync(const Utf8Str &strDesc, ComObjPtr<Progress> &pProgress);
+
+    HRESULT Init(const Utf8Str &strTaskDesc)
+    {
+        HRESULT hr = S_OK;
+        setTaskDesc(strTaskDesc);
+        hr = createAndSetProgressObject();
+        return hr;
+    }
+
+    const ComObjPtr<Progress>& GetProgressObject() const { return mProgress; }
+
+protected:
+
+    /** @name Directory handling primitives.
+     * @{ */
+    int directoryCreate(const com::Utf8Str &strPath, DirectoryCreateFlag_T enmDirecotryCreateFlags, uint32_t uMode,
+                        bool fFollowSymlinks);
+    /** @}  */
+
+    /** @name File handling primitives.
+     * @{ */
+    int fileCopyFromEx(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags,
+                       PRTFILE pFile, uint64_t cbOffset, uint64_t cbSize);
+    int fileCopyFrom(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
+    int fileCopyToEx(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags, PRTFILE pFile,
+                     uint64_t cbOffset, uint64_t cbSize); /**< r=bird: 'cbOffset' makes no sense what so ever. It should be 'off', or do you mean sizeof(uint64_t)? */
+    int fileCopyTo(const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
+    /** @}  */
+
+    /** @name Guest property handling primitives.
+     * @{ */
+    int getGuestProperty(const ComObjPtr<Guest> &pGuest, const Utf8Str &strPath, Utf8Str &strValue);
+    /** @}  */
+
+    /** @name Path handling primitives.
+     * @{ */
+    int pathConstructOnGuest(const Utf8Str &strSourceRoot, const Utf8Str &strSource, const Utf8Str &strDest, Utf8Str &strOut);
+    /** @}  */
+
+    int setProgress(ULONG uPercent);
+    int setProgressSuccess(void);
+    HRESULT setProgressErrorMsg(HRESULT hr, const Utf8Str &strMsg);
+
+    inline void setTaskDesc(const Utf8Str &strTaskDesc) throw()
+    {
+        mDesc = strTaskDesc;
+    }
+
+    HRESULT createAndSetProgressObject();
+
+protected:
+
+    Utf8Str                 mDesc;
+    /** The guest session object this task is working on. */
+    ComObjPtr<GuestSession> mSession;
+    /** Progress object for getting updated when running
+     *  asynchronously. Optional. */
+    ComObjPtr<Progress>     mProgress;
+};
+
+/**
+ * Task for opening a guest session.
+ */
+class SessionTaskOpen : public GuestSessionTask
+{
+public:
+
+    SessionTaskOpen(GuestSession *pSession,
+                    uint32_t uFlags,
+                    uint32_t uTimeoutMS);
+    virtual ~SessionTaskOpen(void);
+    int Run(void);
+
+protected:
+
+    /** Session creation flags. */
+    uint32_t mFlags;
+    /** Session creation timeout (in ms). */
+    uint32_t mTimeoutMS;
+};
+
+/**
+ * Task for copying directories from guest to the host.
+ */
+class SessionTaskCopyDirFrom : public GuestSessionTask
+{
+public:
+
+    SessionTaskCopyDirFrom(GuestSession *pSession, const Utf8Str &strSource, const Utf8Str &strDest, const Utf8Str &strFilter,
+                           DirectoryCopyFlag_T enmDirCopyFlags);
+    virtual ~SessionTaskCopyDirFrom(void);
+    int Run(void);
+
+protected:
+
+    int directoryCopyToHost(const Utf8Str &strSource, const Utf8Str &strFilter, const Utf8Str &strDest, bool fRecursive,
+                            bool fFollowSymlinks, const Utf8Str &strSubDir /* For recursion. */);
+protected:
+
+    Utf8Str             mSource;
+    Utf8Str             mDest;
+    Utf8Str             mFilter;
+    DirectoryCopyFlag_T mDirCopyFlags;
+};
+
+/**
+ * Task for copying directories from host to the guest.
+ */
+class SessionTaskCopyDirTo : public GuestSessionTask
+{
+public:
+
+    SessionTaskCopyDirTo(GuestSession *pSession, const Utf8Str &strSource, const Utf8Str &strDest, const Utf8Str &strFilter,
+                         DirectoryCopyFlag_T enmDirCopyFlags);
+    virtual ~SessionTaskCopyDirTo(void);
+    int Run(void);
+
+protected:
+
+    int directoryCopyToGuest(const Utf8Str &strSource, const Utf8Str &strFilter, const Utf8Str &strDest, bool fRecursive,
+                             bool fFollowSymlinks, const Utf8Str &strSubDir /* For recursion. */);
+protected:
+
+    Utf8Str             mSource;
+    Utf8Str             mDest;
+    Utf8Str             mFilter;
+    DirectoryCopyFlag_T mDirCopyFlags;
+};
+
+/**
+ * Task for copying files from host to the guest.
+ */
+class SessionTaskCopyFileTo : public GuestSessionTask
+{
+public:
+
+    SessionTaskCopyFileTo(GuestSession *pSession,
+                          const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
+    SessionTaskCopyFileTo(GuestSession *pSession,
+                          PRTFILE pSourceFile, size_t cbSourceOffset, uint64_t cbSourceSize,
+                          const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
+    virtual ~SessionTaskCopyFileTo(void);
+    int Run(void);
+
+protected:
+
+    Utf8Str        mSource;
+    PRTFILE        mSourceFile;
+    size_t         mSourceOffset;
+    uint64_t       mSourceSize;
+    Utf8Str        mDest;
+    FileCopyFlag_T mFileCopyFlags;
+};
+
+/**
+ * Task for copying files from guest to the host.
+ */
+class SessionTaskCopyFileFrom : public GuestSessionTask
+{
+public:
+
+    SessionTaskCopyFileFrom(GuestSession *pSession,
+                        const Utf8Str &strSource, const Utf8Str &strDest, FileCopyFlag_T enmFileCopyFlags);
+    virtual ~SessionTaskCopyFileFrom(void);
+    int Run(void);
+
+protected:
+
+    Utf8Str        mSource;
+    Utf8Str        mDest;
+    FileCopyFlag_T mFileCopyFlags;
+};
+
+/**
+ * Task for automatically updating the Guest Additions on the guest.
+ */
+class SessionTaskUpdateAdditions : public GuestSessionTask
+{
+public:
+
+    SessionTaskUpdateAdditions(GuestSession *pSession,
+                               const Utf8Str &strSource, const ProcessArguments &aArguments,
+                               uint32_t uFlags);
+    virtual ~SessionTaskUpdateAdditions(void);
+    int Run(void);
+
+protected:
+
+    /**
+     * Suported OS types for automatic updating.
+     */
+    enum eOSType
+    {
+        eOSType_Unknown = 0,
+        eOSType_Windows = 1,
+        eOSType_Linux   = 2,
+        eOSType_Solaris = 3
+    };
+
+    /**
+     * Structure representing a file to
+     * get off the .ISO, copied to the guest.
+     */
+    struct InstallerFile
+    {
+        InstallerFile(const Utf8Str &aSource,
+                      const Utf8Str &aDest,
+                      uint32_t       aFlags = 0)
+            : strSource(aSource),
+              strDest(aDest),
+              fFlags(aFlags) { }
+
+        InstallerFile(const Utf8Str          &aSource,
+                      const Utf8Str          &aDest,
+                      uint32_t                aFlags,
+                      const GuestProcessStartupInfo &aStartupInfo)
+            : strSource(aSource),
+              strDest(aDest),
+              fFlags(aFlags),
+              mProcInfo(aStartupInfo)
+        {
+            mProcInfo.mExecutable = strDest;
+            if (mProcInfo.mName.isEmpty())
+                mProcInfo.mName = strDest;
+        }
+
+        /** Source file on .ISO. */
+        Utf8Str                 strSource;
+        /** Destination file on the guest. */
+        Utf8Str                 strDest;
+        /** File flags. */
+        uint32_t                fFlags;
+        /** Optional arguments if this file needs to be
+         *  executed. */
+        GuestProcessStartupInfo mProcInfo;
+    };
+
+    int addProcessArguments(ProcessArguments &aArgumentsDest, const ProcessArguments &aArgumentsSource);
+    int copyFileToGuest(GuestSession *pSession, PRTISOFSFILE pISO, Utf8Str const &strFileSource, const Utf8Str &strFileDest, bool fOptional, uint32_t *pcbSize);
+    int runFileOnGuest(GuestSession *pSession, GuestProcessStartupInfo &procInfo);
+
+    /** Files to handle. */
+    std::vector<InstallerFile> mFiles;
+    /** The (optionally) specified Guest Additions .ISO on the host
+     *  which will be used for the updating process. */
+    Utf8Str                    mSource;
+    /** (Optional) installer command line arguments. */
+    ProcessArguments           mArguments;
+    /** Update flags. */
+    uint32_t                   mFlags;
+};
+#endif /* !____H_GUESTSESSIONIMPL_TASKS */
Index: /trunk/src/VBox/Main/src-client/GuestCtrlImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/GuestCtrlImpl.cpp	(revision 71647)
+++ /trunk/src/VBox/Main/src-client/GuestCtrlImpl.cpp	(revision 71648)
@@ -22,4 +22,5 @@
 #ifdef VBOX_WITH_GUEST_CONTROL
 # include "GuestSessionImpl.h"
+# include "GuestSessionImplTasks.h"
 # include "GuestCtrlImplPrivate.h"
 #endif
Index: /trunk/src/VBox/Main/src-client/GuestSessionImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/GuestSessionImpl.cpp	(revision 71647)
+++ /trunk/src/VBox/Main/src-client/GuestSessionImpl.cpp	(revision 71648)
@@ -28,4 +28,5 @@
 #endif
 #include "GuestSessionImpl.h"
+#include "GuestSessionImplTasks.h"
 #include "GuestCtrlImplPrivate.h"
 #include "VirtualBoxErrorInfoImpl.h"
Index: /trunk/src/VBox/Main/src-client/GuestSessionImplTasks.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/GuestSessionImplTasks.cpp	(revision 71647)
+++ /trunk/src/VBox/Main/src-client/GuestSessionImplTasks.cpp	(revision 71648)
@@ -28,4 +28,5 @@
 #endif
 #include "GuestSessionImpl.h"
+#include "GuestSessionImplTasks.h"
 #include "GuestCtrlImplPrivate.h"