lib/Support/Windows/COM.inc

   1 //==- llvm/Support/Windows/COM.inc - Windows COM Implementation -*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements the Windows portion of COM support.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 //===----------------------------------------------------------------------===//
  14 //=== WARNING: Implementation here must contain only Windows code.
  15 //===----------------------------------------------------------------------===//
  16
  17 #include <objbase.h>
  18
  19 namespace llvm {
  20 namespace sys {
  21
  22 InitializeCOMRAII::InitializeCOMRAII(COMThreadingMode Threading,
  23                                      bool SpeedOverMemory) {
  24   DWORD Coinit = 0;
  25   if (Threading == COMThreadingMode::SingleThreaded)
  26     Coinit |= COINIT_APARTMENTTHREADED;
  27   else
  28     Coinit |= COINIT_MULTITHREADED;
  29   if (SpeedOverMemory)
  30     Coinit |= COINIT_SPEED_OVER_MEMORY;
  31   ::CoInitializeEx(nullptr, Coinit);
  32 }
  33
  34 InitializeCOMRAII::~InitializeCOMRAII() { ::CoUninitialize(); }
  35 }
  36 }