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/* $Id: vcc-fakes.h $ */
/** @file
* IPRT - Common macros for the Visual C++ 2010+ CRT import fakes.
*/
/*
* Copyright (C) 2012-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox 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.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef IPRT_INCLUDED_SRC_r3_win_vcc_fakes_h
#define IPRT_INCLUDED_SRC_r3_win_vcc_fakes_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#ifdef RT_STRICT
# include <stdio.h> /* _snprintf */
#endif
/** @def MY_ASSERT
* We use a special assertion macro here to avoid dragging in IPRT bits in
* places which cannot handle it (direct GA 3D bits or something like that).
*
* Turns out snprintf is off limits too. Needs Locale info and runs out of
* stack
*/
#ifdef RT_STRICT
# if 1
# define MY_ASSERT(a_Expr, g_szMsg) \
do { \
if ((a_Expr)) \
{ /*likely*/ } \
else \
{ \
OutputDebugStringA("Assertion failed on line " RT_XSTR(__LINE__) ": " RT_XSTR(a_Expr) "\n"); \
OutputDebugStringA("Assertion message: " g_szMsg "\n"); \
RT_BREAKPOINT(); \
} \
} while (0)
# define MY_ASSERT_STMT_RETURN(a_Expr, a_Stmt, a_rc) \
do { \
if (a_Expr) \
{ /* likely */ } \
else \
{ \
OutputDebugStringA("Assertion failed on line " RT_XSTR(__LINE__) ": " RT_XSTR(a_Expr) "\n"); \
RT_BREAKPOINT(); \
a_Stmt; \
return (a_rc); \
} \
} while (0)
# else
# define MY_ASSERT(a_Expr, ...) \
do { \
if ((a_Expr)) \
{ /*likely*/ } \
else \
{ \
char szTmp[256]; \
_snprintf(szTmp, sizeof(szTmp), "Assertion failed on line %u in '%s': %s", __LINE__, __PRETTY_FUNCTION__, #a_Expr); \
OutputDebugStringA(szTmp); \
_snprintf(szTmp, sizeof(szTmp), __VA_ARGS__); \
OutputDebugStringA(szTmp); \
RT_BREAKPOINT(); \
} \
} while (0)
# endif
#else
# define MY_ASSERT(a_Expr, ...) do { } while (0)
# define MY_ASSERT_STMT_RETURN(a_Expr, a_Stmt, a_rc) \
do { if (a_Expr) { /* likely */ } else { a_Stmt; return (a_rc); }} while (0)
#endif
/** Dynamically resolves an NTDLL API we need. */
#define RESOLVE_NTDLL_API(ApiNm) \
static bool volatile s_fInitialized##ApiNm = false; \
static decltype(ApiNm) *s_pfn##ApiNm = NULL; \
decltype(ApiNm) *pfn##ApiNm; \
if (s_fInitialized##ApiNm) \
pfn##ApiNm = s_pfn##ApiNm; \
else \
{ \
pfn##ApiNm = (decltype(pfn##ApiNm))GetProcAddress(GetModuleHandleW(L"ntdll"), #ApiNm); \
s_pfn##ApiNm = pfn##ApiNm; \
s_fInitialized##ApiNm = true; \
} do {} while (0)
/** Declare a kernel32 API.
* @note We are not exporting them as that causes duplicate symbol troubles in
* the OpenGL bits. */
#define DECL_KERNEL32(a_Type) extern "C" a_Type WINAPI
/** Ignore comments. */
#define COMMENT(a_Text)
/** Used for MAKE_IMPORT_ENTRY when declaring external g_pfnXxxx variables. */
#define DECLARE_FUNCTION_POINTER(a_Name, a_cb) extern "C" decltype(a_Name) *RT_CONCAT(g_pfn, a_Name);
/** Used in the InitFakes method to decl are uCurVersion used by assertion. */
#ifdef RT_STRICT
# define CURRENT_VERSION_VARIABLE() \
unsigned uCurVersion = GetVersion(); \
uCurVersion = ((uCurVersion & 0xff) << 8) | ((uCurVersion >> 8) & 0xff)
#else
# define CURRENT_VERSION_VARIABLE() (void)0
#endif
/** Used for MAKE_IMPORT_ENTRY when resolving an import. */
#define RESOLVE_IMPORT(a_uMajorVer, a_uMinorVer, a_Name, a_cb) \
do { \
FARPROC pfnApi = GetProcAddress(hmod, #a_Name); \
if (pfnApi) \
RT_CONCAT(g_pfn, a_Name) = (decltype(a_Name) *)pfnApi; \
else \
{ \
MY_ASSERT(uCurVersion < (((a_uMajorVer) << 8) | (a_uMinorVer)), #a_Name); \
RT_CONCAT(g_pfn, a_Name) = RT_CONCAT(Fake_,a_Name); \
} \
} while (0);
#endif /* !IPRT_INCLUDED_SRC_r3_win_vcc_fakes_h */
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