git.sesse.net Git - casparcg/blob - concrt_extras/concrt_extras.h

   1 //--------------------------------------------------------------------------\r
   2 // \r
   3 //  Copyright (c) Microsoft Corporation.  All rights reserved. \r
   4 // \r
   5 //  File: concrt_extras.h\r
   6 //\r
   7 //  Implementation of ConcRT helpers\r
   8 //\r
   9 //--------------------------------------------------------------------------\r
  10 \r
  11 #pragma once\r
  12 \r
  13 #include <concrtrm.h>\r
  14 #include <concrt.h>\r
  15 \r
  16 namespace Concurrency\r
  17 {\r
  18     /// <summary>\r
  19     /// An RAII style wrapper around Concurrency::Context::Oversubscribe,\r
  20     /// useful for annotating known blocking calls\r
  21     /// </summary>\r
  22     class scoped_oversubcription_token\r
  23     {\r
  24     public:\r
  25         scoped_oversubcription_token()\r
  26         {\r
  27             Concurrency::Context::CurrentContext()->Oversubscribe(true);\r
  28         }\r
  29         ~scoped_oversubcription_token()\r
  30         {\r
  31             Concurrency::Context::CurrentContext()->Oversubscribe(false);\r
  32         }\r
  33     };\r
  34 }