53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
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/******************************************************************************
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Copyright (c) 2002 Microsoft Corporation
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Module Name:
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safecs.cpp
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Abstract:
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Implements a safe InitializeCriticalSection (usable on all supported platforms)
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******************************************************************************/
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#include "stdafx.h"
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BOOL WINAPI WUInitializeCriticalSectionAndSpinCount(LPCRITICAL_SECTION lpcs, DWORD dwSpinCount)
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{
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OSVERSIONINFO osvinfo;
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ZeroMemory(&osvinfo, sizeof(osvinfo));
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osvinfo.dwOSVersionInfoSize = sizeof(osvinfo);
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if (!GetVersionEx(&osvinfo))
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{
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return FALSE;
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}
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typedef BOOL (WINAPI* PROC_InitializeCriticalSectionAndSpinCount)(LPCRITICAL_SECTION, DWORD);
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PROC_InitializeCriticalSectionAndSpinCount pfnInitCS =
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(PROC_InitializeCriticalSectionAndSpinCount)GetProcAddress(
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GetModuleHandle(_T("kernel32.dll")), "InitializeCriticalSectionAndSpinCount");
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//
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// Don't use InitializeCriticalSectionAndSpinCount on Win9x.
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// It exists but returns VOID (it's a thunk to InitializeCriticalSection).
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//
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if (osvinfo.dwPlatformId == VER_PLATFORM_WIN32_NT && pfnInitCS != NULL)
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{
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return (*pfnInitCS)(lpcs, dwSpinCount);
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}
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else
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{
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BOOL fSuccess = TRUE;
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__try
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{
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InitializeCriticalSection(lpcs);
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}
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__except(EXCEPTION_EXECUTE_HANDLER)
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{
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fSuccess = FALSE;
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}
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return fSuccess;
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}
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}
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