Gabriele Cosmo
52 lines
2.2 KiB
C++
52 lines
2.2 KiB
C++
//
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// MIT License
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// Copyright (c) 2020 Jonathan R. Madsen
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED
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// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// ---------------------------------------------------------------
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// Tasking class implementation
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// Class Description:
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// Abstract base class for creating a task queue used by
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// ThreadPool
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// ---------------------------------------------------------------
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// Author: Jonathan Madsen
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// ---------------------------------------------------------------
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#include "PTL/VUserTaskQueue.hh"
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#include "PTL/TaskRunManager.hh"
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#include <cstdint> // for intmax_t
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#include <thread> // for thread
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namespace PTL
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{
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//======================================================================================//
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VUserTaskQueue::VUserTaskQueue(intmax_t nworkers)
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: m_workers(nworkers)
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{
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if(m_workers < 0)
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{
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TaskRunManager* rm = TaskRunManager::GetMasterRunManager();
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m_workers = (rm) ? rm->GetNumberOfThreads() + 1 // number of threads + 1
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: (2 * std::thread::hardware_concurrency()) + 1;
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// hyperthreads + 1
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}
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}
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//======================================================================================//
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} // namespace PTL
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