/** @file
 * VBox frontends: Basic Frontend (BFE):
 * COM definitions
 */

/*
 * Copyright (C) 2006-2007 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 COMDefs_H
#define COMDefs_H

#ifdef RT_OS_WINDOWS
# include <Windows.h>
#endif
#include <stdarg.h>
#include <iprt/assert.h>

/* This is a transitional file used to get rid of all COM
 * definitions from COM/XPCOM. */

#define COMGETTER(n)    get_##n
#define COMSETTER(n)    put_##n

#define NS_LIKELY(x)    RT_LIKELY(x)
#define NS_UNLIKELY(x)  RT_UNLIKELY(x)

#define NS_SUCCEEDED(_nsresult) (NS_LIKELY(!((_nsresult) & 0x80000000)))
#define NS_FAILED(_nsresult)    (NS_UNLIKELY((_nsresult) & 0x80000000))

#define ATL_NO_VTABLE
#define DECLARE_CLASSFACTORY(a)
#define DECLARE_CLASSFACTORY_SINGLETON(a)
#define DECLARE_REGISTRY_RESOURCEID(a)
#define DECLARE_NOT_AGGREGATABLE(a)
#define DECLARE_PROTECT_FINAL_CONSTRUCT()
#define BEGIN_COM_MAP(a)
#define COM_INTERFACE_ENTRY(a)
#define COM_INTERFACE_ENTRY2(a,b)
#define END_COM_MAP()

#ifndef RT_OS_WINDOWS
  typedef unsigned long  HRESULT;
  typedef unsigned long  ULONG; /// @todo 64-bit: ULONG is 32-bit.
  typedef signed   long  LONG;  /// @todo 64-bit: ULONG is 32-bit.
  typedef unsigned short USHORT;
  typedef bool           BOOL;
  typedef unsigned char  BYTE;
# define STDMETHODIMP   unsigned long
# define STDMETHOD(a)   virtual unsigned long a
# define S_OK           0

# if ! defined(E_NOTIMPL)
#  define E_NOTIMPL     ((unsigned long) 0x80004001L)
# endif
# define E_POINTER      ((unsigned long) 0x80004003L)
# define E_FAIL         ((unsigned long) 0x80004005L)
# define E_UNEXPECTED   ((unsigned long) 0x8000ffffL)
# define E_INVALIDARG   ((unsigned long) 0x80070057L)
#define E_ACCESSDENIED  ((unsigned long) 0x80070005L)

# if ! defined(FALSE)
#  define FALSE false
# endif

# if ! defined(TRUE)
#  define TRUE  true
# endif

# define SUCCEEDED      NS_SUCCEEDED
# define FAILED         NS_FAILED

#define ComSafeArrayIn(aType, aArg)         unsigned aArg##Size, aType *aArg
#define ComSafeArrayInIsNull(aArg)          (aArg == NULL)
#define ComSafeArrayInArg(aArg)             aArg##Size, aArg
#define ComSafeArrayAsInParam(aArray)   \
    (aArray).size(), aArray.raw()
#else /* !RT_OS_WINDOWS */
#define ComSafeArrayIn(aType, aArg)     SAFEARRAY **aArg
#define ComSafeArrayInIsNull(aArg)      (aArg == NULL || *aArg == NULL)
#define ComSafeArrayInArg(aArg)         aArg
#define ComSafeArrayAsInParam(aArray)   (SAFEARRAY **)NULL

#endif /* !RT_OS_WINDOWS */



namespace com
{
    template<class T> class SafeArray {
        T t;
    public:
        SafeArray (size_t aSize) {}
        SafeArray (ComSafeArrayIn (T, aArg)) {}
        T &operator[] (size_t aIdx) { return t; }
        size_t size() const { return 0; }
        T *raw() { return &t; }
    };
}

#define unconst(val) val
#endif