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      1 //==- llvm/Support/Windows/COM.inc - Windows COM Implementation -*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file implements the Windows portion of COM support.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 //===----------------------------------------------------------------------===//
     15 //=== WARNING: Implementation here must contain only Windows code.
     16 //===----------------------------------------------------------------------===//
     17 
     18 #include <objbase.h>
     19 
     20 namespace llvm {
     21 namespace sys {
     22 
     23 InitializeCOMRAII::InitializeCOMRAII(COMThreadingMode Threading,
     24                                      bool SpeedOverMemory) {
     25   DWORD Coinit = 0;
     26   if (Threading == COMThreadingMode::SingleThreaded)
     27     Coinit |= COINIT_APARTMENTTHREADED;
     28   else
     29     Coinit |= COINIT_MULTITHREADED;
     30   if (SpeedOverMemory)
     31     Coinit |= COINIT_SPEED_OVER_MEMORY;
     32   ::CoInitializeEx(nullptr, Coinit);
     33 }
     34 
     35 InitializeCOMRAII::~InitializeCOMRAII() { ::CoUninitialize(); }
     36 }
     37 }
     38