gdipp_server/dc_pool.h

   1 #pragma once
   2
   3 namespace gdipp
   4 {
   5
   6 class dc_pool
   7 {
   8         // pool for managing costly and reusable HDCs
   9         // all operations are thread-safe
  10
  11 public:
  12         ~dc_pool();
  13         HDC claim();
  14         bool free(HDC hdc);
  15
  16 private:
  17         // free HDCs are ready to be claimed
  18         // busy HDCs are claimed and being used
  19         std::list<HDC> _free;
  20         std::set<HDC> _busy;
  21 };
  22
  23 }