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201 lines
5.8 KiB
201 lines
5.8 KiB
// This is a part of the Active Template Library.
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// Copyright (C) 1996-1998 Microsoft Corporation
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// All rights reserved.
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//
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// This source code is only intended as a supplement to the
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// Active Template Library Reference and related
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// electronic documentation provided with the library.
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// See these sources for detailed information regarding the
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// Active Template Library product.
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#ifndef __ATLBASE_H__
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#error atlimpl.cpp requires atlbase.h to be included first
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// Minimize CRT
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// Specify DllMain as EntryPoint
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// Turn off exception handling
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// Define _ATL_MIN_CRT
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#ifdef _ATL_MIN_CRT
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/////////////////////////////////////////////////////////////////////////////
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// Startup Code
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#if defined(_WINDLL) || defined(_USRDLL)
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// Declare DllMain
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extern "C" BOOL WINAPI DllMain(HANDLE hDllHandle, DWORD dwReason, LPVOID lpReserved);
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extern "C" BOOL WINAPI _DllMainCRTStartup(HANDLE hDllHandle, DWORD dwReason, LPVOID lpReserved)
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{
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return DllMain(hDllHandle, dwReason, lpReserved);
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}
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#else
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// wWinMain is not defined in winbase.h.
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extern "C" int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nShowCmd);
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#define SPACECHAR _T(' ')
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#define DQUOTECHAR _T('\"')
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#ifdef _UNICODE
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extern "C" void wWinMainCRTStartup()
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#else // _UNICODE
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extern "C" void WinMainCRTStartup()
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#endif // _UNICODE
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{
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LPTSTR lpszCommandLine = ::GetCommandLine();
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if(lpszCommandLine == NULL)
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::ExitProcess((UINT)-1);
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// Skip past program name (first token in command line).
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// Check for and handle quoted program name.
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if(*lpszCommandLine == DQUOTECHAR)
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{
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// Scan, and skip over, subsequent characters until
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// another double-quote or a null is encountered.
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do
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{
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lpszCommandLine = ::CharNext(lpszCommandLine);
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}
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while((*lpszCommandLine != DQUOTECHAR) && (*lpszCommandLine != _T('\0')));
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// If we stopped on a double-quote (usual case), skip over it.
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if(*lpszCommandLine == DQUOTECHAR)
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lpszCommandLine = ::CharNext(lpszCommandLine);
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}
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else
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{
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while(*lpszCommandLine > SPACECHAR)
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lpszCommandLine = ::CharNext(lpszCommandLine);
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}
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// Skip past any white space preceeding the second token.
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while(*lpszCommandLine && (*lpszCommandLine <= SPACECHAR))
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lpszCommandLine = ::CharNext(lpszCommandLine);
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STARTUPINFO StartupInfo;
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StartupInfo.dwFlags = 0;
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::GetStartupInfo(&StartupInfo);
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int nRet = _tWinMain(::GetModuleHandle(NULL), NULL, lpszCommandLine,
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(StartupInfo.dwFlags & STARTF_USESHOWWINDOW) ?
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StartupInfo.wShowWindow : SW_SHOWDEFAULT);
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::ExitProcess((UINT)nRet);
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}
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#endif // defined(_WINDLL) | defined(_USRDLL)
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/////////////////////////////////////////////////////////////////////////////
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// Heap Allocation
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#ifndef _DEBUG
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#ifndef _MERGE_PROXYSTUB
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//rpcproxy.h does the same thing as this
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int __cdecl _purecall()
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{
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::MessageBox(NULL,
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_T("Runtime Error!\n\nR6025\n- pure virtual function call\n"),
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_T("Microsoft Visual C+ ATL"),
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MB_OK | MB_ICONERROR);
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::ExitProcess(255);
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return 0;
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}
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#endif
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#if !defined(_M_ALPHA) && !defined(_M_PPC)
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//RISC always initializes floating point and always defines _fltused
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extern "C" const int _fltused = 0;
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#endif
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static const int nExtraAlloc = 8;
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static const int nOffsetBlock = nExtraAlloc/sizeof(HANDLE);
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void* __cdecl malloc(size_t n)
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{
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void* pv = NULL;
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#ifndef _ATL_NO_MP_HEAP
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if (_Module.m_phHeaps == NULL)
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#endif
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{
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pv = (HANDLE*) HeapAlloc(_Module.m_hHeap, 0, n);
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}
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#ifndef _ATL_NO_MP_HEAP
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else
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{
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// overallocate to remember the heap handle
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int nHeap = _Module.m_nHeap++;
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HANDLE hHeap = _Module.m_phHeaps[nHeap & _Module.m_dwHeaps];
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HANDLE* pBlock = (HANDLE*) HeapAlloc(hHeap, 0, n + nExtraAlloc);
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if (pBlock != NULL)
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{
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*pBlock = hHeap;
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pv = (void*)(pBlock + nOffsetBlock);
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}
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else
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pv = NULL;
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}
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#endif
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return pv;
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}
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void* __cdecl calloc(size_t n, size_t s)
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{
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return malloc(n*s);
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}
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#pragma prefast(push)
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#pragma prefast(suppress:308, "prefast bug 538")
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void* __cdecl realloc(void* p, size_t n)
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{
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if (p == NULL)
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return malloc(n);
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#ifndef _ATL_NO_MP_HEAP
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if (_Module.m_phHeaps == NULL)
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#endif
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return HeapReAlloc(_Module.m_hHeap, 0, p, n);
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#ifndef _ATL_NO_MP_HEAP
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else
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{
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HANDLE* pHeap = ((HANDLE*)p)-nOffsetBlock;
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pHeap = (HANDLE*) HeapReAlloc(*pHeap, 0, pHeap, n + nExtraAlloc);
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return (pHeap != NULL) ? pHeap + nOffsetBlock : NULL;
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}
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#endif
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}
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#pragma prefast(pop)
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void __cdecl free(void* p)
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{
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if (p == NULL)
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return;
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#ifndef _ATL_NO_MP_HEAP
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if (_Module.m_phHeaps == NULL)
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#endif
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HeapFree(_Module.m_hHeap, 0, p);
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#ifndef _ATL_NO_MP_HEAP
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else
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{
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HANDLE* pHeap = ((HANDLE*)p)-nOffsetBlock;
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HeapFree(*pHeap, 0, pHeap);
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}
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#endif
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}
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void* __cdecl operator new(size_t n)
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{
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return malloc(n);
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}
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void __cdecl operator delete(void* p)
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{
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free(p);
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}
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#endif //_DEBUG
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#endif //_ATL_MIN_CRT
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