Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/externals/ptl/src/TaskGroup.cc

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  1 //
  2 // MIT License
  3 // Copyright (c) 2020 Jonathan R. Madsen
  4 // Permission is hereby granted, free of charge, to any person obtaining a copy
  5 // of this software and associated documentation files (the "Software"), to deal
  6 // in the Software without restriction, including without limitation the rights
  7 // to use, copy, modify, merge, publish, distribute, sublicense, and
  8 // copies of the Software, and to permit persons to whom the Software is
  9 // furnished to do so, subject to the following conditions:
 10 // The above copyright notice and this permission notice shall be included in
 11 // all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED
 12 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 13 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 14 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 15 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 16 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 17 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 18 //
 19 // ---------------------------------------------------------------
 20 //  Tasking class implementation
 21 //
 22 // Class Description:
 23 //
 24 // This file creates an abstract base class for the grouping the thread-pool
 25 // tasking system into independently joinable units
 26 //
 27 // ---------------------------------------------------------------
 28 // Author: Jonathan Madsen (Feb 13th 2018)
 29 // ---------------------------------------------------------------
 30 
 31 #include "PTL/TaskGroup.hh"
 32 
 33 #include "PTL/TaskRunManager.hh"
 34 #include "PTL/ThreadData.hh"
 35 
 36 //======================================================================================//
 37 
 38 namespace PTL
 39 {
 40 namespace internal
 41 {
 42 std::atomic_uintmax_t&
 43 task_group_counter()
 44 {
 45     static std::atomic_uintmax_t _instance(0);
 46     return _instance;
 47 }
 48 
 49 ThreadPool*
 50 get_default_threadpool()
 51 {
 52     auto* mrm = TaskRunManager::GetMasterRunManager();
 53     if(mrm)
 54     {
 55         if(!mrm->GetThreadPool())
 56             mrm->Initialize();
 57         return mrm->GetThreadPool();
 58     }
 59     return nullptr;
 60 }
 61 
 62 intmax_t
 63 get_task_depth()
 64 {
 65     return (ThreadData::GetInstance()) ? ThreadData::GetInstance()->task_depth : 0;
 66 }
 67 }  // namespace internal
 68 }  // namespace PTL
 69 
 70 //======================================================================================//
 71