include/opencl/OpenCLZone.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #ifndef INCLUDED_OPENCL_INC_OPENCL_ZONE_HXX
  11 #define INCLUDED_OPENCL_INC_OPENCL_ZONE_HXX
  12
  13 #include <sal/config.h>
  14
  15 #include <cassert>
  16 #include <csignal>
  17
  18 #include <opencl/opencldllapi.h>
  19
  20 // FIXME: post back-port, templatize me and share with OpenGLZone.
  21 class OPENCL_DLLPUBLIC OpenCLZone
  22 {
  23     /// how many times have we entered a CL zone and not yet left it
  24     static volatile std::sig_atomic_t gnEnterCount;
  25     static volatile bool gbInInitialTest;
  26
  27 public:
  28     OpenCLZone()
  29     {
  30         gnEnterCount = gnEnterCount + 1; //TODO: overflow
  31     }
  32
  33     ~OpenCLZone()
  34     {
  35         // coverity[assert_side_effect]
  36         assert(gnEnterCount > 0);
  37         gnEnterCount = gnEnterCount - 1;
  38         if (!isInZone())
  39             gbInInitialTest = false;
  40     }
  41
  42     static bool isInZone()
  43     {
  44         return gnEnterCount > 0;
  45     }
  46
  47     static bool isInInitialTest()
  48     {
  49         return gbInInitialTest;
  50     }
  51
  52     static void hardDisable();
  53     static void enterInitialTest();
  54 };
  55
  56 #endif // INCLUDED_OPENCL_INC_OPENCL_ZONE_HXX
  57
  58 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */