Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 499 insertions, 0 deletions

diff --git a/include/VBox/com/Guid.h b/include/VBox/com/Guid.h
new file mode 100644
index 00000000..38a3b783
--- /dev/null
+++ b/include/VBox/com/Guid.h
@@ -0,0 +1,499 @@
+/* $Id: Guid.h $ */
+/** @file
+ * MS COM / XPCOM Abstraction Layer - Guid class declaration.
+ */
+
+/*
+ * Copyright (C) 2006-2019 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.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+#ifndef VBOX_INCLUDED_com_Guid_h
+#define VBOX_INCLUDED_com_Guid_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+/* Make sure all the stdint.h macros are included - must come first! */
+#ifndef __STDC_LIMIT_MACROS
+# define __STDC_LIMIT_MACROS
+#endif
+#ifndef __STDC_CONSTANT_MACROS
+# define __STDC_CONSTANT_MACROS
+#endif
+
+#include "VBox/com/string.h"
+
+#include <iprt/uuid.h>
+
+
+/** @defgroup grp_com_guid  GUID Class
+ * @ingroup grp_com
+ * @{
+ */
+
+namespace com
+{
+
+typedef enum GuidState_t
+{
+    GUID_ZERO,
+    GUID_NORMAL,
+    GUID_INVALID
+} GuidState_t;
+
+/**
+ *  Helper class that represents the UUID type and hides platform-specific
+ *  implementation details.
+ */
+class Guid
+{
+public:
+
+    Guid()
+    {
+        clear();
+    }
+
+    Guid(const Guid &that)
+    {
+        mUuid = that.mUuid;
+        mGuidState = that.mGuidState;
+        dbg_refresh();
+    }
+
+    Guid(const RTUUID &that)
+    {
+        mUuid = that;
+        updateState();
+        dbg_refresh();
+    }
+
+    Guid(const GUID &that)
+    {
+        AssertCompileSize(GUID, sizeof(RTUUID));
+        ::memcpy(&mUuid, &that, sizeof(GUID));
+        updateState();
+        dbg_refresh();
+    }
+
+    /**
+     * Construct a GUID from a string.
+     *
+     * @param   that        The UUID string. Can be with or without the curly
+     *                      brackets. Empty strings are translated to a zero
+     *                      GUID, and strings which are not confirming to
+     *                      valid GUID string representations are marked as
+     *                      invalid.
+     */
+    Guid(const char *that)
+    {
+        initString(that);
+    }
+
+    /**
+     * Construct a GUID from a BSTR.
+     *
+     * @param   that        The UUID BSTR. Can be with or without the curly
+     *                      brackets. Empty strings are translated to a zero
+     *                      GUID, and strings which are not confirming to
+     *                      valid GUID string representations are marked as
+     *                      invalid.
+     */
+    Guid(CBSTR that)
+    {
+        initBSTR(that);
+    }
+
+    /**
+     * Construct a GUID from a Utf8Str.
+     *
+     * @param   that        The UUID Utf8Str. Can be with or without the curly
+     *                      brackets. Empty strings are translated to a zero
+     *                      GUID, and strings which are not confirming to
+     *                      valid GUID string representations are marked as
+     */
+    Guid(const Utf8Str &that)
+    {
+        initString(that.c_str());
+    }
+
+    /**
+     * Construct a GUID from a RTCString.
+     *
+     * @param   that        The UUID RTCString. Can be with or without the curly
+     *                      brackets. Empty strings are translated to a zero
+     *                      GUID, and strings which are not confirming to
+     *                      valid GUID string representations are marked as
+     */
+    Guid(const RTCString &that)
+    {
+        initString(that.c_str());
+    }
+
+    /**
+     * Construct a GUID from a Bstr.
+     *
+     * @param   that        The UUID Bstr. Can be with or without the curly
+     *                      brackets. Empty strings are translated to a zero
+     *                      GUID, and strings which are not confirming to
+     *                      valid GUID string representations are marked as
+     */
+    Guid(const Bstr &that)
+    {
+        initBSTR(that.raw());
+    }
+
+    Guid& operator=(const Guid &that)
+    {
+        mUuid = that.mUuid;
+        mGuidState = that.mGuidState;
+        dbg_refresh();
+        return *this;
+    }
+
+    Guid& operator=(const RTUUID &guid)
+    {
+        mUuid = guid;
+        updateState();
+        dbg_refresh();
+        return *this;
+    }
+
+    Guid& operator=(const GUID &guid)
+    {
+        AssertCompileSize(GUID, sizeof(RTUUID));
+        ::memcpy(&mUuid, &guid, sizeof(GUID));
+        updateState();
+        dbg_refresh();
+        return *this;
+    }
+
+    Guid& operator=(const char *str)
+    {
+        initString(str);
+        return *this;
+    }
+
+    Guid& operator=(CBSTR str)
+    {
+        initBSTR(str);
+        return *this;
+    }
+
+    Guid& operator=(const Utf8Str &str)
+    {
+        return operator=(str.c_str());
+    }
+
+    Guid& operator=(const RTCString &str)
+    {
+        return operator=(str.c_str());
+    }
+
+    Guid& operator=(const Bstr &str)
+    {
+        return operator=(str.raw());
+    }
+
+    void create()
+    {
+        ::RTUuidCreate(&mUuid);
+        mGuidState = GUID_NORMAL;
+        dbg_refresh();
+    }
+
+    void clear()
+    {
+        makeClear();
+        dbg_refresh();
+    }
+
+    /**
+     * Convert the GUID to a string.
+     *
+     * @returns String object containing the formatted GUID.
+     * @throws  std::bad_alloc
+     */
+    Utf8Str toString() const
+    {
+        if (mGuidState == GUID_INVALID)
+        {
+            /* What to return in case of wrong Guid */
+            return Utf8Str("00000000-0000-0000-0000-00000000000");
+        }
+
+        char buf[RTUUID_STR_LENGTH];
+        ::memset(buf, '\0', sizeof(buf));
+        ::RTUuidToStr(&mUuid, buf, sizeof(buf));
+
+        return Utf8Str(buf);
+    }
+
+    /**
+     * Like toString, but encloses the returned string in curly brackets.
+     *
+     * @returns String object containing the formatted GUID in curly brackets.
+     * @throws  std::bad_alloc
+     */
+    Utf8Str toStringCurly() const
+    {
+        if (mGuidState == GUID_INVALID)
+        {
+            /* What to return in case of wrong Guid */
+            return Utf8Str("{00000000-0000-0000-0000-00000000000}");
+        }
+
+        char buf[RTUUID_STR_LENGTH + 2];
+        ::memset(buf, '\0', sizeof(buf));
+        ::RTUuidToStr(&mUuid, buf + 1, sizeof(buf) - 2);
+        buf[0] = '{';
+        buf[sizeof(buf) - 2] = '}';
+
+        return Utf8Str(buf);
+    }
+
+    /**
+     * Convert the GUID to a string.
+     *
+     * @returns Bstr object containing the formatted GUID.
+     * @throws  std::bad_alloc
+     */
+    Bstr toUtf16() const
+    {
+        if (mGuidState == GUID_INVALID)
+        {
+            /* What to return in case of wrong Guid */
+            return Bstr("00000000-0000-0000-0000-00000000000");
+        }
+
+        RTUTF16 buf[RTUUID_STR_LENGTH];
+        ::memset(buf, '\0', sizeof(buf));
+        ::RTUuidToUtf16(&mUuid, buf, RT_ELEMENTS(buf));
+
+        return Bstr(buf);
+    }
+
+    bool isValid() const
+    {
+        return mGuidState != GUID_INVALID;
+    }
+
+    bool isZero() const
+    {
+        return mGuidState == GUID_ZERO;
+    }
+
+    bool operator==(const Guid &that) const { return ::RTUuidCompare(&mUuid, &that.mUuid)    == 0; }
+    bool operator==(const RTUUID &guid) const { return ::RTUuidCompare(&mUuid, &guid) == 0; }
+    bool operator==(const GUID &guid) const { return ::RTUuidCompare(&mUuid, (PRTUUID)&guid) == 0; }
+    bool operator!=(const Guid &that) const { return !operator==(that); }
+    bool operator!=(const GUID &guid) const { return !operator==(guid); }
+    bool operator!=(const RTUUID &guid) const { return !operator==(guid); }
+    bool operator<(const Guid &that) const { return ::RTUuidCompare(&mUuid, &that.mUuid)    < 0; }
+    bool operator<(const GUID &guid) const { return ::RTUuidCompare(&mUuid, (PRTUUID)&guid) < 0; }
+    bool operator<(const RTUUID &guid) const { return ::RTUuidCompare(&mUuid, &guid) < 0; }
+
+    /**
+     * To directly copy the contents to a GUID, or for passing it as an input
+     * parameter of type (const GUID *), the compiler converts. */
+    const GUID &ref() const
+    {
+        return *(const GUID *)&mUuid;
+    }
+
+    /**
+     * To pass instances to printf-like functions.
+     */
+    PCRTUUID raw() const
+    {
+        return (PCRTUUID)&mUuid;
+    }
+
+#if !defined(VBOX_WITH_XPCOM)
+
+    /** To assign instances to OUT_GUID parameters from within the interface
+     * method. */
+    const Guid &cloneTo(GUID *pguid) const
+    {
+        if (pguid)
+            ::memcpy(pguid, &mUuid, sizeof(GUID));
+        return *this;
+    }
+
+    /** To pass instances as OUT_GUID parameters to interface methods. */
+    GUID *asOutParam()
+    {
+        return (GUID *)&mUuid;
+    }
+
+#else
+
+    /** To assign instances to OUT_GUID parameters from within the
+     * interface method */
+    const Guid &cloneTo(nsID **ppGuid) const
+    {
+        if (ppGuid)
+            *ppGuid = (nsID *)nsMemory::Clone(&mUuid, sizeof(nsID));
+
+        return *this;
+    }
+
+    /**
+     * Internal helper class for asOutParam().
+     *
+     * This takes a GUID reference in the constructor and copies the mUuid from
+     * the method to that instance in its destructor.
+     */
+    class GuidOutParam
+    {
+        GuidOutParam(Guid &guid)
+            : ptr(0),
+              outer(guid)
+        {
+            outer.clear();
+        }
+
+        nsID *ptr;
+        Guid &outer;
+        GuidOutParam(const GuidOutParam &that); // disabled
+        GuidOutParam &operator=(const GuidOutParam &that); // disabled
+    public:
+        operator nsID**() { return &ptr; }
+        ~GuidOutParam()
+        {
+            if (ptr && outer.isZero())
+            {
+                outer = *ptr;
+                outer.dbg_refresh();
+                nsMemory::Free(ptr);
+            }
+        }
+        friend class Guid;
+    };
+
+    /** to pass instances as OUT_GUID parameters to interface methods */
+    GuidOutParam asOutParam() { return GuidOutParam(*this); }
+
+#endif
+
+    /**
+     *  Static immutable empty (zero) object. May be used for comparison purposes.
+     */
+    static const Guid Empty;
+
+private:
+    void makeClear()
+    {
+        ::RTUuidClear(&mUuid);
+        mGuidState = GUID_ZERO;
+    }
+
+    void makeInvalid()
+    {
+        ::RTUuidClear(&mUuid);
+        mGuidState = GUID_INVALID;
+    }
+
+    void updateState()
+    {
+        if (::RTUuidIsNull(&mUuid))
+            mGuidState = GUID_ZERO;
+        else
+            mGuidState = GUID_NORMAL;
+    }
+
+    void initString(const char *that)
+    {
+        if (!that || !*that)
+        {
+            makeClear();
+        }
+        else
+        {
+            int rc = ::RTUuidFromStr(&mUuid, that);
+            if (RT_SUCCESS(rc))
+                updateState();
+            else
+                makeInvalid();
+        }
+        dbg_refresh();
+    }
+
+    void initBSTR(CBSTR that)
+    {
+        if (!that || !*that)
+        {
+            makeClear();
+        }
+        else
+        {
+            int rc = ::RTUuidFromUtf16(&mUuid, that);
+            if (RT_SUCCESS(rc))
+                updateState();
+            else
+                makeInvalid();
+        }
+        dbg_refresh();
+    }
+
+    /**
+     * Refresh the debug-only UUID string.
+     *
+     * In debug code, refresh the UUID string representatino for debugging;
+     * must be called every time the internal uuid changes; compiles to nothing
+     * in release code.
+     */
+    inline void dbg_refresh()
+    {
+#ifdef DEBUG
+        switch (mGuidState)
+        {
+            case GUID_ZERO:
+            case GUID_NORMAL:
+                ::RTUuidToStr(&mUuid, mszUuid, RTUUID_STR_LENGTH);
+                break;
+            default:
+                ::memset(mszUuid, '\0', sizeof(mszUuid));
+                ::RTStrCopy(mszUuid, sizeof(mszUuid), "INVALID");
+                break;
+        }
+        m_pcszUUID = mszUuid;
+#endif
+    }
+
+    /** The UUID. */
+    RTUUID mUuid;
+
+    GuidState_t mGuidState;
+
+#ifdef DEBUG
+    /** String representation of mUuid for printing in the debugger. */
+    char mszUuid[RTUUID_STR_LENGTH];
+    /** Another string variant for the debugger, points to szUUID. */
+    const char *m_pcszUUID;
+#endif
+};
+
+} /* namespace com */
+
+/** @} */
+
+#endif /* !VBOX_INCLUDED_com_Guid_h */
+