lib/Support/Windows/COM.inc

   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 }